Series Proportional Electro-Hydraulic Controls

Proportional Electro-ydraulic Controls Types Graphic Symbols Max. Operating Pressure () Maximum Flow U.S.GPM. 3 3 3 L/min Page Pilot Relief Valves. (3) EDG 67 Relief Valves. (3) EBG 3 6 676 Relieving and Reducing Valves. (3) ERBG 6 68 Flow Control (and Check) Valves O M.6 (3) EFG EFCG 3 6 69 Flow Control (and Check) Valves O M 3:.6 (3) 6:. (3) EFG EFCG 3 6 7 - Flow Control and Relief Valves O M. (3) EFBG 3 6 7 - Flow Control and Relief Valves O M. (3) EFBG 3 6 7 A igh Flow Flow Control and Relief Valves X V O M Y T. (3) EFBG 3 6 733 P Shockless Type Directional and Flow Control Valves SOL.a A B P T SOL.b (363) EDFG 73 Directional and Flow Control Valves igh Respones Type Directional and Flow Control Valves A X SOL.a a P A B PT T b SOL.b Y B (363) /3: 3. (7) /6: 3 (8) EDFG ELDFG 3 3 6 ELDFG Power Amplifiers...Page 766 Setting Adjusters...Page 789 6 76 73 Proportional Electro-ydraulic Controls 667

Petroleum Base Oils Synthetic Fluids Water-containing Fluids ydraulic Fluids Fluid Types Any type of hydraulic fluid listed in the table below can be used. Use fluids equivalent to ISO VG 3 or VG 6. Use phosphate ester or polyol ester fluids. When phosphate ester fluid is used, prefix "F-" to the model number because the special seals (fluororubber) are required to be used. Use water-glycol fluid. Note: For use with hydraulic fluids other than those listed above, please consult your Yuken representatives in advance. Recommended Fluid Viscosity and Temperature Use hydraulic fluids which satisfy the both recommended viscosity and oil temperatures given in the table below. Name Viscosity Temperature Pilot Relief Valves Relief Valves Reducing and Relieving Valves Flow Control Valves Flow Control and Check Valves Flow Control and Relief Valves Directional and Flow Control Valves Shockless Type Directional and Flow Control Valves igh Respones Type Directional and Flow Control Valves (Direct Type) igh Respones Type Directional and Flow Control Valves (Two Stage Type) - mm /s (77-8 SSU) - mm /s (98-9 SSU) - mm /s (98-8 SSU) - mm /s (98-9 SSU) - mm /s (77-8 SSU) - - +7 C ( - 6 F) - +6 C (3 - F) - +6 C (3 - F) - - +6 C ( - F) Control of Contamination Due caution must be paid to maintaining control over contamination of the hydraulic fluids which may otherwise lead to breakdowns and shorten the life of the valve. Please maintain the degree of contamination within NAS 638-Grade. Use m or finer line filter. 668 Proportional Electro-ydraulic Controls

SERIES Instructions Mounting Be sure that the air vent faces up. In addition, if the valve is mounted vertically, the minimum adjustment pressure is. (9 ) or higher. [Good example] [Bad example] SOL SOL SOL SOL SOL SOL Air Bleeding To ensure stable control, bleed the air from solenoid completely and fill its core with oil. Bleeding can be done by slowly loosening one of the air vents at the end of the solenoid. Choose one of the three air vents which is expected to work most effectively (see the figure to the right). Manual Adjustment Screw When initial adjustments are to be made or when no current is supplied to the valve due to electrical failure or other problem, turn the manual adjustment screw to temporatily set the valve pressure / flow rate. In that case, when turn the manual adjustment screw clockwise, the valve pressure / flow rate increases. Under normal condition, however, this screw must be kept in its original position (see the figure to the right). M Screw Solenoid Solenoid Manual Adjustment Screw Solenoid Tank and Drain Piping Solenoid The tank-line back pressure and drain back pressure directly affect the minimum adjustment pressure. Therefore, do not connect the tank or drain pipes to other lines, but connect them directly to the reservoir maintaining the back pressure as low as possible. Be sure that the tank and drain pipe ends are immersed in fluid. Case Manual adjustment pin Manual adjustments can be done by screwing for example an M L screw in the M thread or pushing in a pin there with a rod etc. E Proportional Electro-ydraulic Controls ysteresis and Repeatability Value Indications The hysteresis and repeatability values indicated in the specifications for each control valve are determined under the following conditions: ysteresis Value: Obtained when Yuken's applicable power amplifier is used. Repeatability Value: Obtained when Yuken's applicable power amplifier is used under the same conditions. Proportional Electro-ydraulic Controls 669

Proportional Electro-ydraulic Pilot Relief Valves This valve consists of a small DC solenoid and a direct-acting relief valve. It serves as a pilot valve for a low flow rate hydraulic system or a proportional electro-hydraulic control valve and controls the pressure in proportion to the input current. Note that this valve is used in conjunction with the applicable power amplifier. Specifications Description Max. Operating Pres. Max. Flow Min. Flow Pressure Adj. Range () Rated Current Coil Resistance ysteresis Repeatability Approx. Mass EDG-. (3 ) L/min (.3 U.S.GPM).3 L/min (.8 U.S.GPM) Refer to Model Number Designation EDG- -B: 8 ma EDG- -C: 9 ma EDG- -: 9 ma 3% or less % or less kg (. lbs.) Graphic Symbols Without Safety Valve With Safety Valve Model Number Designation F- Special Seals ED G - V -C - -PN T3 Type of Valve Applicable Pressure Adj. Range Safety P-Line T-Line Number Mounting Size Control () Valve Orifice Orifice - Design Number Design Standards F: Special Seals for Phosphate Ester Type Fluid (Omit if not required) ED : Proportional Electro- ydraulic Pilot Relief Valve G: Mounting None: General use V : Vent Control of Relief Valve (Omit if not required) B:. - 6.9 ( 7 - ) C:. -.7 ( - 7) :. -. ( 7-3) None: Without Safety Valve : With Safety Valve PN: Without Orifice (Standard) T T3 T 3 Refer to. When the valve is to be used for vent control purpose, orifice adjustment is required due to piping capacity limitations. Therefore, consult your Yuken representative in advance.. The orifice used as the pilot valve may differ from the standard orifice. 3. Design Standards: None... Japanese Standard "JIS" and European Design Standard 9... N. American Design Standard 67 Pilot Relief Valves

SERIES Attachment Mounting Bolts Four socket head cap screws in the table below are included. Descriptions Japanese Standard "JIS" European Design Standard N. American Design Standard Soc. d. Cap Screw M Lg. No. - UNC -3/ Lg. Applicable Power Amplifier For stable performance, it is recommended that Yuken's applicable power amplifiers be used (for details see page 767, 77, 78). : AME-D-- - AME-D-- SK- - - SK- (For DC power supply) AMN-D- (For DC power supply) Piping Size /8 / 3/8 Japanese Standard "JIS" DSGM--3 DSGM-X-3 DSGM-Y-3 Thread Size Rc /8 Rc / Rc 3/8 European Design Standard DSGM--38 DSGM-X-38 Thread Size /8 BSP.F / BSP.F N. American Design Standard Thread Size DSGM--39 /8 NPT DSGM-X-39 / NPT DSGM-Y-39 3/8 NPT Approx. Mass kg (lbs.).8 (.8).8 (.8).8 (.8) s are available. Specify the sub-plate model number from the table above. When sub-plates are not used, the mounting surface should have a good machined finish. s are those for /8 solenoid operated directional valves. For dimensoins, see page 36. Instructions Tank-Line Back Pressure Check that the tank line back pressure does not exceed. (9 ). Vent Control When the valve is used for vent control of relief valves or others, use the pipes of 6 mm (. in.) ID. 3 mm (.8 in.) or less length for connection. If the pressure is instable, provide a. to. mm (. to.6 in.) diameter orifice to the vent port of the relief valves or others. Circuit Pressure Control When the pressure in a circuit is directly controlled with this valve, set the trapped oil volume being more than 3 cm (. cu. in.). Safety Valve Pressure Setting The pressure of the safety valve at the maximum flow is preset at the value equal to the upper limit of the pressure adjustment range plus (9 ). In case where the upper limit of operating pressure is low or the upper limit of flow rate to be used is different from the specified maximum flow, please adjust and determine the setting pressure of the safety valve at the value calculated from the following formula. Setting pressure = (Operating pressure upper limit) + (Additional pressure indicated below) Additional Pressure 3 7.. E Pilot Relief Valves L /min.. U.S.GPM To lower the setting pressure, turn the safety valve pressure adjustment screw anti-clockwise. After adjustment, be sure to tighten the lock nut. Pilot Relief Valves 67

EDG- - --PNT -/9 EDG- - -PNT -/9 With Safety Valve Without Safety Valve Fully Extended 6(8.) Fully Extended (.) Pressure Adj. Screw for Safety Valve 3(.) ex.soc. 79(3.). (.9).(.) Dia. Through 9.(.37) C'Bore Places. (.8).7 (.3) 8. (.33) INC. 3 (.) 3. (.8) 8 (.89) Lock Nut (.39) ex. For other dimensions, refer to the without safety valve. The direction can be altered to every 9 degree angles. Pressure Port "P" Tank Port "T" DIMENSIONS IN MILLIMETRES (INCES) Connector (The direction can be altered to every 9 degree angles.) 7. (.8) Cable Departure Cable Applicable: Outside Dia.... 8- mm (.3 -.39 in.) Conductor Area...... Not Exceeding. mm (.3 sq. in.) 3(.) ex. Soc. 39 (.) 9. (7.) 86. (3.) 6. (.) (.98) 37. (.8) (.97) 9. (3.7) 7. (.6) Manual Pressure Adj. Screw 3(.) ex.soc. INC. Mounting Surface (s Furnished) Note: For valve mounting surface dimensions, see the dimensional drawings of sub-plates (P.36) in common use. 67 Pilot Relief Valves

SERIES Pressure Step Response (Example) These characteristics have been obtained by measuring on each valve. Therefore, they may vary according to a hydraulic circuit to be used. 8 6 9 7 3 EDG--B EDG--C EDG-- 3 7 6 3.s.s.s Step Signal 8 Step Signal Step Signal Time Time Time Pressure Trapped Oil Volume Viscocity Pressure : : : L/min (.3 U.S. GPM) 3 cm (. cu. in.) 3 mm /s ( SSU) Phase (deg.) Min. Adjustment Pressure Pressure Frequency Response - - -6-8 - - - -6-8 3 - - -3 Gain (db) Frequency (z)....7 7 7 Pressure Trapped Oil Volume Viscocity Min. Adjustment Pressure 36 3 3 : : : : Viscosity : 3 mm /s ( SSU).3.. 3...7 vs. Pressure 8 6 Viscosity : 3 mm /s ( SSU) EDG--. 3.. EDG--C.7..7 EDG--B 6.9. 3.9 Phase L/min (.3 U.S. GPM) 7.8.6 (3 3 ) 3 3 cm (.83 cu. in.) 3 mm /s ( SSU).. EDG-- EDG--C EDG--B L /min U.S.GPM L /min U.S.GPM Gain Control Pressure vs. Input Current Pressure Pressure 3 3..... Viscosity vs. Pressure EDG-- EDG--C EDG--B 6 8 Input Current ma : L /min (.3 U.S. GPM) Oil : ISO VG 6 Oil EDG--.9 3 3.. EDG--C 3 6. 3.7.3 EDG--B 7.3 6.9 9 6. 3 6 C Temperature 9 F 76 3 mm /s Viscosity 3 SSU E Pilot Relief Valves Pilot Relief Valves 673

List of Seals and Solenoid Ass'y Without Safety Valve EDG- - -PNT -/9 EDG-V- -PNT -3 EDG-- -PNT - 6 3 8 3 8 3 7 6 With Safety Valve EDG- - --PNT -/9 EDG-V- --P T -3/97 7 6 3 9 7 6 9 8 7 List of Seals Item Name of Parts Part Numbers Qty. 6 7 8 9 Fastener Seal SO-NA-P6 SO-NB-P9 SO-NB-P7 SO-NB-P SO-NB-P8 SO-NB-A3 SO-NB-P SG-FCF- Remarks Included in Seal Kit Kit No.: KS-EDG-- Note) O-ring (Item 6, 8, ) and the fastener seal (Item ) are included in the solenoid assembly. Solenoid Ass'y Valve 3 Solenoid Ass'y EDG-- - -P T -/9 EDG-- - -P T - E38-Y6M-8-6 EDG-V- - -P T -/9 EDG-V- - -PNT -3 E38-Y6M--6 E38-Y6M--6 EDG-V- --PNT-97 E38-Y6M-8-6 Note) The connector assembly GDM--B- (Item ) is not included in the solenoid assembly. 67 Pilot Relief Valves

SERIES Interchangeability between Current and New Design EDG- series valve has changed model from to design in line with the solenoid improvement. Specifications and Characteristics No change in specifications and characteristics between current and new design. Mounting Interchangeability There is an interchangeability in the mounting dimensions, however, the outside shape and dimensions are changed as shown below due to solenoid improvement and other modifications. Current: Design New: Design 3(.) ex. Soc. 9. (7.) 86.6 (3.) 6. (.) Manual Pressure Adj. Screw 3(.) ex.soc. 9. (7.) 86.7 (3.) 6. (.) E Pilot Relief Valves 9. (3.7) 9. (3.7) Manual Pressure Adj. Screw 3(.) ex.soc. Adaptor (.87) ex. Solenoid Ass'y E38- - - E38- - -6 Fully Extended 7(8.) Fully Extended (.) 3(.) ex. Soc. Solenoid Ass'y E38- - -6 Fully Extended 6(8.) Fully Extended (.) The solenoid assembly current design comes in two types: E38- design and 6 design. See the figure on the left for an external view of type. See the figure on the right for type. DIMENSIONS IN MILLIMETRES (INCES) Pilot Relief Valves 67

Proportional Electro-ydraulic Relief Valves This valve is derived by combining a small, high-performance /8 proportional electro-hydraulic pilot relief valve with a specially developed low-noise relief valve. With this valve, it is possible to regulate the system pressure in proportion to the input current. Note that this valve is used in conjunction with the applicable power amplifier. Specifications Description EBG-3 EBG-6 EBG- Max. Operating Pres. (). (3). (3). (3) Max. Flow L/min(U.S.GPM) (6.) (.8) (6) Min. Flow L/min(U.S.GPM) 3 (.79) 3 (.79) 3 (.79) Pressure Adjustment Range () Refer to Model Number Designation Rated Current C: 77 ma :8 ma C: 7 ma : 8 ma C: 73 ma : 78 ma Coil Resistance ysteresis Repeatability Approx. Mass kg (lbs.) 3% or less % or less.6 (.3) 3% or less % or less 6.3 (3.9) 3% or less % or less () Graphic Symbols Without Safety Valve With Safety Valve Model Number Designation F- Special Seals EB Number G Type of Mounting -3 -C -T - Valve Size Pres. Adj. Range () Safety Valve Design Number Design Standards F: Special Seals for Phosphate Ester Type Fluid (Omit if not required) EB : Proportional Electro-ydraulic Relief Valve G: Mounting 3 6 C: -.7 ( - 7) : -. ( - 3) None: With Safety Valve T : Without Safety Valve Refer to. Min. adjustment pressure shall be referred to the curves on page 68.. Design Standards: None... Japanese Standard "JIS" and European Design Standard 9... N. American Design Standard 676 Relief Valves

SERIES Attachment Mounting Bolts Valve EBG-3 EBG-6 EBG- Socket ead Cap Screw Japanese Standard "JIS" & European Design Standard N. American Design Standard Qty. M Lg. M6 Lg. M 6 Lg. / - 3 UNC -/ Lg. /8 - UNC Lg. 3/ - UNC -/ Lg. Applicable Power Amplifiers For stable performance, it is rrecommended that Yuken's applicable power amplifiers be used (for details see page 767, 77, 78). : AME-D-- - AME-D-- SK- - - Valve Model Numbers Japanese Standard "JIS" BGM-3- BGM-3X- BGM-6- BGM-6X- BGM-- BGM-X- Thread Size Rc 3/8 Rc / Rc 3/ Rc Rc -/ Rc -/ SK- (For DC power supply) AMN-D- (For DC power supply) European Design Standard BGM-3-38 BGM-3X-38 BGM-6-38 BGM-6X-38 BGM--38 BGM-X-38 Thread Size 3/8 BSP.F / BSP.F 3/ BSP.F BSP.F -/ BSP.F -/ BSP.F N. American Design Standard BGM-3-9 BGM-3X-9 BGM-6-9 BGM-6X-9 BGM--9 BGM-X-9 Thread Size 3/8 NPT / NPT 3/ NPT NPT -/ NPT -/ NPT Approx. Mass kg (lbs). (.3) EBG-3 3. (6.8).7 (.) EBG-6.7 (.6) 8. (8.) EBG-.3 (.7) s are available. Specify the sub-plate model number from the table above. When sub-plates are not used, the mounting surface should have a good machined finish. s are those for pilot operated relief valves. For dimensions, see page 3. Additional Pressure Instructions Safety Valve The pressure of the safety valve for EBG-3 is preset at the value equal to the upper limit of the pressure adjustment range plus (9 ) subject to a flow rate of L/min (3. U.S.GPM). The same for EBG-6 is preset at the value equal to the upper limit of the pressure adjustment range plus 3. ( ) subject to a flow rate of L/min (6. U.S.GPM). The same for EBG- is preset at the value equal to the upper limit of the pressure adjustment range plus (8 ) subject to a flow rate of L/min (.8 U.S.GPM). In case where the upper limit of operating pressure is low or the upper limit of flow rate to be used is different from the specified maximum flow, please adjust and determine the setting pressure of the safety valve at the value calculated from the following formula. Setting pressure = (Operating pressure upper limit) + (Additional pressure indicated blow) 3 3 7 L /min EBG-3 Additional Pressure U.S.GPM 7 6 3 EBG-6 L /min 3 U.S.GPM Additional Pressure 9 8 6 6 3 EBG- 3 L /min 6 8 U.S.GPM To lower the setting pressure, turn the safety valve pressure adjustment screw anti-clockwise. After adjustment, be sure to tighten the lock nut. E Relief Valves Relief Valves 677

EBG- 3 6 - -/9 With Safety Valve Fully Extended 6(8.) Lock Nut (.39) ex. Pressure Adj. Screw for Safety Valve 3(.) ex.soc. INC. EBG- 3 6 - -T-/9 Without Safety Valve Mounting Surface EBG-3 : ISO 66-AR-6--A EBG-6 : ISO 66-AS-8--A DIMENSIONS IN MILLIMETRES (INCES) For other dimensions, refer to the without safety valve. B 39 (.) D A C "Q" Dia. Through "S" Dia. Spotface Places F E J The direction can be altered to every 9 degree angles. Tank Port "T" Pressure Port "P" Connector The direction can be altered to every 9 degree angles. 8 (.89) 7. (.8) Cable Departure Cable Applicable: Outside Dia.... 8- mm (.3 -.39 in.) Conductor Area... Not Exceeding. mm (.3 sq. in.) This port is not used. It is provided because of the common use of the body with the low-noise type pilot operated relief valve. On the sub-plate, plug the port which corresponds to this port. 7. (.6) 3(.) ex. Soc. 3 (.) 99. (7.8) Manual Pressure Adj. Screw 3(.) ex.soc. INC. K Mounting Surface (s Furnished) 6 (.) 6 (.) Dia. Locating Pin N L EBG-3 EBG-6 Dimensions mm (Inches) A B C D E F J K 97. (7.78). (8.9) 7.6 (.63) 9. (.7) 3.8 (.) 66.7 (.63).3 (.9). (.66) 76 (.99) 98 (3.86) 3.8 (.) 7 (.76) 6.9 (.6) 3 (.38). (.) (.). (.8) 6 (.) L 6 (.7) (.8) N 6. (.3) 36 (.) Q 3. (.3) 7. (.69) S (.83) 6 (.) Note: For valve mounting surface dimensions, see the dimensional drawings of sub-plates (p.3) in common use. 678 Relief Valves

SERIES EBG-- -/9 With Safety Valve Fully Extended 6(8.) Lock Nut (.39) ex. Pressure Adj. Screw for Safety Valve 3(.) ex.soc. Mounting surface: ISO 66-AT---A DIMENSIONS IN MILLIMETRES (INCES) INC. EBG-- -T-/9 Without Safety Valve For other dimensions, refer to the without safety valve. (3.98) 39 (.) (8.3).(.8) Dia. Through 3(.6) Dia. Spotface Places 88.9 (3.) 3.7 (.93) 8.6 (3.) 8.7 (.7) (.7).3 (.63) The direction can be altered to every 9 degree angles. Tank Port "T" Pressure Port "P" Connector The direction can be altered to every 9 degree angles. 8 (.89) 7. (.8) Cable Departure Cable Applicable: Outside Dia.... 8- mm (.3 -.39 in.) Conductor Area... Not Exceeding. mm (.3 sq. in.) This port is not used. It is provided because of the common use of the body with the low-noise type pilot operated relief valve. On the sub-plate, plug the port which corresponds to this port. 7. (.6) 66(6.) 3.(9.7) 3(.) ex.soc. Manual Pressure Adj. Screw 3(.) ex.soc. INC. 33. (.3) E Relief Valves Mounting Surface (s Furnished) 6 (.) 6 (.) Dia. Locating Pin (.77) (6.) Note: For valve mounting surface dimensions, see the dimensional drawings of sub-plates (p.3) in common use. Relief Valves 679

Min. Adjustment Pressure Viscosity : 3 mm /s ( SSU) Min. Adjustment Pressure 7..6..8. EBG-3 EBG-6 EBG- Min. Adjustment Pressure 7..6..8. Min. Adjustment Pressure. 7.6..8. 7 L /min L /min 3 L /min U.S.GPM 3 U.S.GPM 6 8 U.S.GPM Step Response (Example) These Characteristics have been obtained by measuring on each valve. Therefore, they may vary according to a hydraulic circuit to be used. Trapped Oil Volume Viscosity : : L (.6 U.S. Gallons) 3 mm /s ( SSU) Pressure 7 6 8 EBG-3-C.s Step Signal Time ( : L /min, 6. U.S.GPM Pressure 3 3 EBG-3- Time ) ( : L /min, 6. U.S.GPM ).s Step Signal 7 6 EBG-6-C 3 EBG-6- Pressure.s 8 Step Signal Time ( : L /min,.8 U.S.GPM ) Pressure 3.s Step Signal Time ( : L /min,.8 U.S.GPM ) Pressure 7 6 8 EBG--C.s Step Signal Time ( : L /min, 6 U.S.GPM ) Pressure 3 3 EBG--.s Step Signal Time ( : L /min, 6 U.S.GPM ) 68 Relief Valves

SERIES Input Current vs. Pressure EBG-3 Pressure 3 3 EBG-3- EBG-3-C 6 8 Input Current ma Phase (deg.) Frequency Response - - -6-8 - - - -6-8 Trapped Oil Volume Viscocity - - -3 Gain (db) : L (.6 U.S. Gallons) : 3 mm /s ( SSU) EBG-3 Frequency (z)...7 7 Phase Gain Pressure : 7.8.6 (3 3 ) : L /min (6. U.S.GPM) Pressure 3 3 3 EBG-6 EBG-6- EBG-6-C 6 8 Input Current ma EBG- Phase (deg.) - - -6-8 - - - -6-8 - - -3 Gain (db) EBG-6 Frequency (z)...7 7 EBG- Phase Frequency (z) Gain Pressure : 7.8.6 (3 3 ) : L /min (.8 U.S.GPM) E Relief Valves Pressure 3 EBG-- EBG--C 6 8 Input Current ma Phase (deg.) - - -6-8 - - - -6-8 - - -3 Gain (db)...7 7 Phase Gain Pressure : 7.8.6 (3 3 ) : L /min (6 U.S.GPM) Relief Valves 68

Viscosity vs. Pressure Oil : ISO VG 6 Oil Viscosity : vs. Pressure 3 mm /s ( SSU) Pressure 36 3 3 3 Temperature.9 Viscosity EBG-3-.. 6. EBG-3-C.7.3 3 3 6 C 9 7 6 3 EBG-3 : L /min (6. U.S.GPM) 3 F mm /s SSU Pressure 36 3 33 3. 3...7.7 3.7 EBG-3- EBG-3-C EBG-3 7 L/min U.S.GPM Pressure 36 3 3 3 Temperature.9.. 6..7 Viscosity EBG-6- EBG-6-C.3 3 3 6 C 9 7 6 3 EBG-6 L /min : (.8 U.S.GPM) 3 F mm /s SSU Pressure 36 3 3 3 EBG-6-. 3.. EBG-6-C.7.7 3.7 EBG-6 L/min 3 U.S.GPM Pressure 36 3 3 3 Temperature Viscosity : L /min (6 U.S.GPM) EBG--.9.. 6. EBG--C.7.3 3 3 6 C 9 7 6 3 EBG- 3 F mm /s SSU Pressure 3 3 3 7 EBG--... EBG--C.7 3.7.7 EBG- 3 L/min 7 U.S.GPM 68 Relief Valves

SERIES List of Seals and Pilot Valves 3 EBG- 6- - -/9 7 9 3 9 9 3 8 3 6 8 7 6 Pilot Valve Valve EBG-3-C-/9 EBG-3--/9 EBG-3-C-T-/9 EBG-3--T-/9 EBG-6-C-/9 EBG-6--/9 EBG-6-C-T-/9 EBG-6--T-/9 EBG--C-/9 EBG---/9 EBG--C-T-/9 EBG---T-/9 Pilot Valve EDG-V-C--PNT9- EDG-V---PNT9- EDG-V-C-PNT9- EDG-V--PNT9- EDG-V-C--PNT- EDG-V---PNT- EDG-V-C-PNT- EDG-V--PNT- EDG-V-C--PNT-3 EDG-V---PNT-3 EDG-V-C-PNT-3 EDG-V--PNT-3 Note: For the details of pilot valves, refer to "Pilot Relief Valves" on page 67. List of Seals Item Name of Parts Part Numbers EBG-3 EBG-6 EBG- Qty. 3 6 SO-NB-P3 SO-NB-P8 SO-NB-P9 SO-NB-P9 SO-NB-A SO-NB-P8 SO-NB-P3 SO-NB-P8 SO-NB-P SO-NB-P9 SO-NB-A SO-NB-P8 SO-NB-P SO-NB-P8 SO-NB-P9 SO-NB-P9 SO-NB-A8 SO-NB-P3 Note) When ordering seals, please specify the seal kit number from the table below. In addition to the above O-rings, seals for pilot valve are included in the seal kit. For the details of the pilot valve seals, see page 67. List of Seal Kit EBG-3 EBG-6 EBG- Seal Kit Numbers KS-EBG-3- KS-EBG-6- KS-EBG-- E Relief Valves Relief Valves 683

Interchangeability between Current and New Design EBG-3/6/ series valves have changed model from to design in line with the model change of pilot valve (EDG-). Specifications and Characteristics No change in specifications and characteristics between current and new design. Mounting Interchangeability There is an interchangeability in the mounting dimensions, however, the outside shape and dimensions are changed as shown below due to pilot valve improvement and other modifications. Current: Design Fully Extended A New: Design Fully Extended A B B C C Manual Pressure Adj. Screw 3(.) ex.soc. Manual Pressure Adj. Screw 3(.) ex.soc. Adaptor (.87) ex. 3(.) ex. Soc. Pilot Valve EDG-V, Design 3(.) ex. Soc. Pilot Valve EDG-V, Design Manual Pressure Adj. Screw for Safety Valve 3(.) ex.soc. Manual Pressure Adj. Screw for Safety Valve 3(.) ex.soc. E E D D See EDG- (page 67) for details of the solenoid ass'y See EDG- (page 67) for details of the solenoid ass'y Current New Current New Current New A B C D E EBG-3- - -/9 EBG-3- - -/9 EBG-6- - -/9 EBG-6- - -/9 EBG-- - -/9 EBG-- - -/9 7 (8.) 6 8.6 (.67) 7.6. (.8). 99. (7.8) (8.) (.63) (.9) 7 (8.) 6 (8.) 7 (8.) 6 (8.). (.7) 9. (.7) (.) (3.98). (.66). (.66) 3.6 (.93) 3.6 (.93) 99. (7.8) 3. (9.7) 3 (.) 3 (.) 66 (6.) DIMENSIONS IN MILLIMETRES (INCES) 68 Relief Valves

SERIES Proportional Electro-ydraulic Relieving and Reducing Valves This valve is derived by combining a small, high-performance /8 proportional electro-hydraulic pilot relief valve with a relieving and reducing valve. With this valve, it is possible to regulate the system pressure in proportion to the input current. Incorporating a relief mechanism, this valve provides a good response speed and the pressure decreases even if the load is large. Note that this valve is used in conjunction with the applicable power amplifier. Specifications Description Max. Operating Pres. () Max. Flow L/min(U.S.GPM) Max. Relieving Flow L/min(U.S.GPM) ERBG-6. (3) (6.) 3 (9.) ERBG-. (3) (66) (3.96) Secondary Pres. Adj. Range Rated Current Coil Resistance ysteresis Repeatability Approx. Mass () kg (lbs.) ERB Number ERB: Proportional Electro-ydraulic Relieving and Reducing Valve Refer to Model Number Designation B: 8 ma C: 8 ma : 9 ma 3% or less % or less (6.) G Type of Mounting G: Mounting B: 8 ma C: 8 ma :9 ma 3% or less % or less 3. (9.8) The values shown are those obtained where the differential pressure between the secondary pressure port and tank port is 3.7 ( ). Model Number Designation F- Special Seals F: Special Seals for Phosphate Ester Type Fluid (Omit if not required) -6 -C - Valve Size Design Standards: None... Japanese Standard "JIS" and European Design Standard 9... N. American Design Standard 6 Secondary Pres. Adj. Range () B:.8-6.9 ( - ) C:. - 3.7 (7 - ) :. -.6 ( - 3) B:.9-6.9 (3 - ) C:. - 3.7 (7 - ) :. -.6 ( - 3) Graphic Symbol Design Number Design Standards Refer to E Relieving and Reducing Valves Relieving and Reducing valves 68

Attachment Mounting Bolts Valve ERBG-6 ERBG- Socket ead Cap Screw Japanese Standard "JIS" & European Design Standard N. American Design Standard Qty. M 7 Lg. M 7 Lg. 3/8-6 UNC -3/ Lg. 3/8-6 UNC -3/ Lg. 6 Applicable Power Amplifier For stable performance, it is recommended that Yuken's applicable power ampliffiers be used (for details see page 767, 77, 78). : AME-D-- - AME-D-- SK- - - SK- (For DC power supply) AMN-D- (For DC power supply) Valve Model Numbers ERBG-6 ERBG- Japanese Standard "JIS" ERBGM-6- ERBGM-- Thread Size Rc 3/ Rc -/ European Design Standard ERBGM-6-8 ERBGM--8 Thread Size 3/ BSP.F -/ BSP.F N. American Design Standard ERBGM-6-9 ERBGM--9 Thread Size 3/ NPT -/ NPT Approx. Mass kg (lbs.) 3. (6.6) 6. (.3) s are available. Specify the sub-plate model number from the table above. When sub-plates are not used, the mounting surface should have a good machined finish. Instructions Primary Pressure Required for Preselected Pressure The primary pressure must be ( ) higher than the preselected pressure. Drain Back Pressure Check that the drain back pressure does not exceed. (9 ). Trapped Oil Volume The recommended secondary side trapped oil volume is about liters (.8 U.S.Gallons). Note that the trapped oil volume must not be lower than. liters (.37 U.S.Gallons). 686 Relieving and Reducing valves

SERIES ERBG-6- -/9 The direction can be alterd to every 9 degree angles. (.8).3 (.8) 7. (.96) 3. (8.) 6.3 (.37) Tank Port "T" DIMENSIONS IN MILLIMETRES (INCES) 3(.) ex. Soc. Connector The direction can be altered to every 9 degree angles. 8 (.89) 7. (.8) Manual Pressure Adj. Screw 3(.) ex.soc. INC. (.9) 79. (3.3) Secondary Pressure Primary Pressure Port "P" Port "A" Drain Port "DR" (.3) Dia. Through 7.(.69) Dia. Spotface Places Cable Departure Cable Applicable: Outside Dia.... 8- mm (.3 -.39 in.) Conductor Area... Not Exceeding. mm (.3 sq. in.) 7. (.6) 39 (.) 36. (.37) 7 (.) 6 (.) Dia. Locating Pin 6 (.) Mounting Surface (s Furnished) "E" Thd. (.79) Deep Places 8.8(.3) Dia. Through (.) Dia. Spotface Places (.).3 (.) 6 (.) (.3) 9 (3.) 8. (7.6) 69.7 (.7) 8 (8.9) : ERBGM-6-/8/9 79. (3.3) 73 (.87) "B" Thd. Places (From Rear) 8(.7) Dia. Places. (.) 39.7 (.6) 6 (.63) 3(.) 3.7 77.3(3.) (.) 6.3(.37) 9.(.9).(.7).6(.8).7 (.8) 7.9 (.) (.9) 36(.3) (.98) (.39) Dia. "C" Thd. (From Rear) 7(.8) Dia. (.39) Deep (.) Dia. ERBGM-6- ERBGM-6-8 ERBGM-6-9 Thread Size "B" Thd. "C" Thd. "D" Thd. "E" Thd. Rc 3/ 3/ BSP.F 3/ NPT Rc 3/8 3/8 BSP.F 3/8 NPT Rc / / BSP.F M / NPT 3/8-6 UNC E Relieving and Reducing Valves "D" Thd. (From Rear) (.9) 6(.63) (.77) Relieving and Reducing valves 687

ERBG-- -/9 The direction can be alterd to every 9 degree angles.. (.) 63. (.) 3. (9.3) 8. (3.3). (.66) Tank Port "T" DIMENSIONS IN MILLIMETRES (INCES) 9 (.69) 96.8 (3.8) 3(.) ex. Soc. Connector The direction can be altered to every 9 degree angles. 8 (.89) 7. (.8) Manual Pressure Adj. Screw 3(.) ex.soc. INC. (.8) Primary Pressure Port "P" Drain Port "DR" 7. (.6) Secondary Pressure Port "A" (.3) Dia. Through 7.(.69) Dia. Spotface 6 Places Cable Departure Cable Applicable: Outside Dia.... 8- mm (.3 -.39 in.) Conductor Area... Not Exceeding. mm (.3 sq. in.) 39 (.) 8 (6.) 6 (.) (.7) 7 (.6) 9 (3.6) 86. (7.3) ERBGM--/8/9.6 (.97).(.) "E" Thd. 8.(3.3) (.79) Deep 67.(.66) 6 Places "C" Thd. 6.7(.7) (From Rear) (.3) Dia. Through 7.(.69) Dia. Spotface Places.6 (.6) 6 (.) Dia. Locating Pin (.98).(.66) 6.7 (.66) 6 (.) (.) Dia. 9.6 (.38) (.7) 6 (.) 33 (9.7) Mounting Surface (s Furnished) (.7) 96.8 (3.8) 9.9 (3.66) 8. (.9) 7 (.6) 6(.7) (.) ERBGM-- ERBGM--8 ERBGM--9 Thread Size "B" Thd. "C" Thd. "D" Thd. "E" Thd. Rc -/ -/ BSP.F -/ NPT Rc 3/8 3/8 BSP.F 3/8 NPT Rc / / BSP.F M / NPT 3/8-6 UNC (.83) "D" Thd. (From Rear) (.7) 3(.8) 96 (3.78) 6(.96) (.9) "B" Thd. Places (From Rear) 8(.) Dia. Places 7(.8) Dia. (.39) Deep (.) Dia. 9(.7) (.79) (.7) 688 Relieving and Reducing valves

SERIES Step Response (Example) The following step response characteristics are taken when the trapped oil volume is liters (.8 U.S.Gallons). The step response varies by trapped oil volume. Primary Pressure Trapped Oil Volume Viscocity :. (3 ) : L (.8 U.S.Gallons) : 3 mm /s ( SSU) ERBG-6-B ERBG--B Secondary Pressure 8 6 8.8 7.8.9 3.9..s Step Signal Time Secondary Pressure 8 6 9.8 7.8.9 3.9..s Step Signal Time Secondary Pressure 3.6 9.6.7.8 7.8 3.9 ERBG-6-C.s Step Signal Secondary Pressure 7 9.6.7.8 7.8 3.9.s Step Signal ERBG--C Time Time Secondary Pressure 3 3 3. 9.6.7.8 7.8 3.9 ERBG-6-.s Step Signal Time Secondary Pressure 3 3 7. 3. 9.6.7.8 7.8 3.9 ERBG--.s Step Signal Time E Relieving and Reducing Valves Relieving and Reducing valves 689

Input Current vs. Secondary Pressure 3. ERBG-6 Primary Pressure Viscocity :. (3 ) : 3 mm /s ( SSU) 3. ERBG- Secondary Pressure Phase (deg.) 7... 7. 3. ERBG-6- Frequency Response ERBG-6-C ERBG-6-B 6 8 Input Current ma Primary Pressure :. (3 ) Trapped Oil Volume : L (.8 U.S.Gallons) Viscocity : 3 mm /s ( SSU) ERBG-6-B Frequency (z)....7 7 - - - - Gain -6-8 Phase - - - -6-8 Gain (db) Secondary Pressure.9. (7 ) Secondary Pressure Phase (deg.) - - -6-8 - - - -6-8 - - Gain (db) 7... 7. 3. ERBG-- ERBG--C ERBG--B 6 8 Input Current ma ERBG--B Frequency (z)....7 7 Secondary Pressure.9. (7 ) Phase Gain Phase (deg.) - - -6-8 - - - -6-8 - - Gain (db) ERBG-6-C Frequency (z)....7 7 Secondary Pressure.8.9 (6 ) Phase Gain Phase (deg.) - - -6-8 - - - -6-8 - - Gain (db) ERBG--C Frequency (z)....7 7 Secondary Pressure.8.9 (6 ) Phase Gain Phase (deg.) - - -6-8 - - - -6-8 - - Gain (db) ERBG-6- Frequency (z)....7 7 Secondary Pressure 6.7 3.9 ( 6 ) Phase Gain Phase (deg.) - - -6-8 - - - -6-8 - - Gain (db) ERBG-- Frequency (z)....7 7 Secondary Pressure 6.7 3.9 ( 6 ) Phase Gain 69 Relieving and Reducing valves

SERIES vs. Secondary Pressure Viscosity : 3 mm /s ( SSU) Secondary Pressure 9 7 6 6.9 6..9.9. 3.9 3..9... ERBG-6-B Secondary Pressure 8 6 6.9.9.9 3.9.9.9.. ERBG--B 7 7 L /min 6 8 L /min U.S.GPM 3 6 6U.S.GPM Secondary Pressure 9 3 9 6 3.7 3..7 9.8 9.3 8.8 6.9 6..9 3.9 3..9 ERBG-6-C 6 8 L /min Secondary Pressure 6 8 6.8 9.8 8.8.9.9 3.9 ERBG--C 7 3 7 L /min 6 6U.S.GPM U.S.GPM Secondary Pressure 3 8 8 9.6 9.6 8.6 3.7.7.7 9.8 8.8 7.8 6.9 6..9 ERBG-6-6 8 L /min Secondary Pressure 3 8 6 8.6 9.6 7.6 6.7.7.7.8 9.8 7.8 6.9.9.9 ERBG-- 7 7 L /min E Relieving and Reducing Valves U.S.GPM 3 6 6 U.S.GPM Relieving and Reducing valves 69

Viscosity vs. Secondary Pressure Oil: ISO VG3 ERBG-6-B ERBG--B Secondary Pressure 9 9 8 77 Temperature Viscosity 7. 7. 6.. 3. 3. 3 6 7 6 86 8 8 6 37 6 7 69 38 6 7 3 8 SSU C F Secondary Pressure mm /s 9 9 8 77 Temperature Viscosity 7. 7. 6.. 3. 3. 3 6 7 6 86 8 8 6 37 6 7 C F mm /s 69 38 6 7 3 8 SSU ERBG-6-C ERBG--C Secondary Pressure 3 96 89 9 9 Temperature Viscosity. 3. 3. 7. 7. 6. 3 6 7 6 86 8 8 6 37 6 7 69 38 6 7 3 8 SSU C F mm /s Secondary Pressure 3 96 89 9 9 Temperature Viscosity. 3. 3. 7. 7. 6. 3 6 7 6 86 8 8 6 37 6 7 69 38 6 7 3 8 SSU C F mm /s ERBG-6- ERBG-- Secondary Pressure 3 9 7 6 3 Temperature Viscosity 9 9 3 6 7 6 86 8 8 6 37 6 7 69 38 6 7 3 8 SSU C F Secondary Pressure mm /s 3 9 7 6 3 Temperature Viscosity 9 9 3 6 7 6 86 8 8 6 37 6 7 69 38 6 7 3 8 SSU C F mm /s 69 Relieving and Reducing valves

SERIES List of Seals and Pilot Valves ERBG- 6 - -/9 7 3 6 3 8 7 6 8 9 List of Seals Pilot Valve Item 8 9 Name of Parts List of Seal Kits Valve ERBG-6 ERBG- ERBG-6 SO-NB-G3 SO-NB-P8 SO-NB-P SO-NB-P9 Part Numbers ERBG- Seal Kit Numbers KS-ERBG-6- KS-ERBG-- SO-NB-P36 SO-NB-P3 SO-NB-P8 SO-NB-P9 Qty. Note) When ordering seals, please specify the seal kit number from the table below. In addition to the above O-rings, seals for pilot valve are included in the seal kit. For the details of the pilot valve seals, see page 67. 3 Valve Model No. ERBG-6-B-/9 ERBG-6-C-/9 ERBG-6--/9 ERBG--B-/9 ERBG--C-/9 ERBG---/9 7 Pilot Valve EDG--B-PNTN- EDG--C-PNTN- EDG---PNT- EDG--B-PNTN- EDG--C-PNTN- EDG---PNT- Note: For the details of pilot valves, refer to "Pilot Relief Valves" on page 67. E Relieving and Reducing Valves Relieving and Reducing valves 693

Interchangeability between Current and New Design ERBG-6/ series valves have changed model from to design in line with the model change of pilot valve (EDG-). Specifications and Characteristics No change in specifications and characteristics between current and new design. Mounting Interchangeability There is an interchangeability in the mounting dimensions, however, the outside shape and dimensions are changed as shown below due to pilot valve improvement and other modifications. Current: Design New: Design See EDG- (page 67) for details about the solenoid ass'y 3(.) ex. Soc. Adaptor (.87) ex. Manual Pressure Adj. Screw 3(.) ex.soc. Pilot Valve EDG-, Design A B See EDG- (page 67) for details about the solenoid ass'y Manual Pressure Adj. Screw 3(.) ex.soc. 3(.) ex. Soc. Pilot Valve EDG-, Design A B C C Current New Current New A B C ERBG-6- -/9 ERBG-6- -/9 ERBG-- -/9 ERBG-- -/9. (8.) 3. (8.) 3. (9.7) 3. (9.3) 36. (.37) 36. (.37) 8 (6.) 8 (6.) (.3) (.3) 7 (.6) 7 (.6) DIMENSIONS IN MILLIMETRES (INCES) 69 Relieving and Reducing valves

SERIES Ω Proportional Electro-ydraulic Flow Control (and Check) Valves Since the preselected flow rate continuously varies in proportion to the current input to the valve, the system flow rate can be remotecontrolled as desired by regulating the amplifier current output. Further, since pressure and temperature compensation functions are provided, the preselected flow rate is not affected by pressure (load) or temperature (fluid viscosity). This valve is ideal for use where actuator startup, stop, and speed changes are to be implemented without producing a shock. Note that this valve is used in conjunction with the applicable power amplifier. Specifications Description Model No. EFG EFCG -- 3 EFG 6 EFCG -3- EFG EFCG -6- EFG EFCG -- Max. Operating Pres. ().6 (3).6 (3).6 (3).6 (3) Metred Flow Adjustment Range L /min (U.S.GPM) :.3- (.8-.6) 3:.3-3 (.8-7.9) 6: -6 (.3-.9) : - (.3-33) 3- (.79-66) - (.3-3) Min. Differential Pres. ().6 (9). ().3 (9). (9) Free Flow (EFCG Models Only.) L /min (U.S.GPM) Rated Current Coil Resistance ysteresis Repeatability Approx. Mass kg (lbs.) (.6) 6 ma Ω % or less % or less 8. (8.) 3 (3.3) 6 ma Ω 7% or less % or less. (7.6) 8 (7.) 6 ma Ω 7% or less % or less (.) () 7 ma Ω 7% or less % or less (3) Min. pressure difference required between inlet and outlet ports to maintain function as pressure compensator. F: Model Number Designation F- Special Seals Special Seals for Phosphate Ester Type Fluid (Omit if not required) EFC Number EF: Proportional Electro- ydraulic Flow Control Valve EFC: Proportional Electro- ydraulic Flow Control and Check Valve G Type of Mounting G: Mounting Graphic Symbols O M O M - - -3 Valve Size 3 6 Max. Metred Flow L/min (U.S.GPM) : (.6) 3 : 3 (7.9) 6 : 6 (.9) : (33) : (66) : (3) EFG- EFCG- Design Number 3 6 Design Standards Refer to E Ω Flow Control (and Check) Valves Note: If you are going to use the model with pressure compensator stroke adjustment screw, consult your Yuken representative in advance. Design Standards: None... Japanese Standard "JIS" and European Design Standard 9... N. American Design Standard Ω Flow Control (and Check) Valves 69

Attachment Mounting Bolts Valve Model Numbers EF G- EF G-3 EF G-6 EF G- Socket ead Cap Screw Japanese Std. "JIS" and European Design Std. M8 7 Lg. M Lg. M6 3 Lg. M 6 Lg. N. American Design Std. /6-8 UNC 3 Lg. 3/8-6 UNC Lg. /8- UNC Lg. 3/- UNC 6-/ Lg. Qty. Applicable Power Amplifiers For stable performance, it is recommende d that Yuken's applicabl e power amplifier s be used (for details see page 77). : AME-D- - AME-DF-S- - AME-T-S- - Valve Model Numbers EFG EFCG - EFG EFCG -3 EFG EFCG -6 EFG EFCG - Japanese Standard "JIS" EFGM-X- EFGM-Y- EFGM-3Y- EFGM-3Z- EFGM-6X- EFGM-6Y- EFGM-Y- Thread Size Rc 3/8 Rc / Rc 3/ Rc Rc Rc -/ -/, Flange Mounting European Design Standard EFGM-X-8 EFGM-Y-8 EFGM-3Y-8 EFGM-3Z-8 EFGM-6X-8 EFGM-6Y-8 EFGM-Y-8 Thread Size 3/8 BSP.F / BSP.F 3/ BSP.F BSP.F BSP.F -/ BSP.F -/, Flange Mounting N. American Design Standard EFGM-X-9 EFGM-Y-9 EFGM-3Y-9 EFGM-3Z-9 EFGM-6X-9 EFGM-6Y-9 EFGM-Y-9 Thread Size 3/8 NPT / NPT 3/ NPT NPT NPT -/ NPT -/, Flange Mounting Approx. Mass kg (lbs.).3 (.) 3. (6.8).7 (.6).6 (.3). (7.6) 6 (3.3) 37 (8.6) s are available. Specify the sub-plate model number from the table above. When sub-plates are not used, the mounting surface should have a good machined finish. When ordering the EFGM-Y, see Type F3 Pipe Flange Kits on page 8 and order an appropriate pipe flange kit also. Models with Pressure Compensator Stroke Adjustment Screw A models with pressure compensator stroke adjustment screw is optionally available to minimize the actuator protrusion (jumping) at startup. For the details, please consult us or your Yuken distributors. Instructions Drain Back Pressure Check that the drain back pressure does not exceed. (9 ). Models with Check Valve A models with check valve makes it possible to obtain a free flow in the direction opposite that of the controlled flow without respect to the input current. 696 Ω Flow Control (and Check) Valves

SERIES EFG/EFCG-- -3/39 EFG/EFCG-3- -6/69 Inlet Port for Controlled Flow or Outlet Port for Reversed Free Flow Connector The direction can be altered to every 9 degree angles. Cable Departure Cable Applicable: Outside Dia.... 8- mm (.3 -.39 in.) Conductor Area... Not Exceeding. mm (.3 sq. in.) 39 P (.) 3 (.) ex. Soc. Drain Port Outlet Port for Controlled Flow or Inlet Port for Reversed Free C Flow D B A J F E 97 (3.8) 8 (3.3) "Q" Dia. Through "S" Dia. Spotface Places Manual Adjustment M Thd. (Internal Thd.) (.7) (.77) Manual adjustment can be done by screwing for example an M L screw in the M thread or pushing in a rod etc. there. INC. K T N L Locating Pin 6 (.) Dia. "U" Places Mounting Surface (s Furnished) 6 (.) Model Numbers EF G- EF G-3 A 96 (3.78) (.9) B 76. (3.).6 (.) C 9.9 (.39).7 (.6) D 38. (.).8 (.) E 6 (.7) 3 (.) Dimensions mm (Inches) F J K L 8.6 (3.).6 (.).7 (.6). (.6) 6.3 (.8) 6.8 (.3) 9 (7.68) (8.3) 8 (3.9) 98 (3.86) N 66 (.6) 8 (3.3) P 8 (.) (.9) Q 8.8 (.3) (.3) S (.) 7. (.69) T 6 (.6) 8 (3.3) U EFG/EFCG-6--/9 EFG/EFCG---/9 Inlet Port for Controlled Flow or Outlet Port for Reversed Free Flow Connector The direction can be altered to every 9 degree angles. 3 (.) ex. Soc. Drain Port Outlet Port for Controlled Flow or Inlet Port for Reversed Free Flow C D B A J F E "S" Dia. Through "T" Dia. Spotface Places Manual Adjustment M Thd. (Internal Thd.) 97 (3.8) 8 (3.3) (.7) INC. (.77) K DIMENSIONS IN MILLIMETRES (INCES) Cable Departure Cable Applicable: Outside Dia.... 8- mm (.3 -.39 in.) Conductor Area... Not Exceeding. mm (.3 sq. in.) 39 Q (.) Manual adjustment can be done by screwing for example an M L screw in the M thread or pushing in a rod etc. there. U N L Two Locating Pins "V" Dia. Mounting Surface (s Furnished) P E Ω Flow Control (and Check) Valves Model Dimensions mm (Inches) Numbers A B C D E F J K L N P Q S T EF G-6 EF G- 8 (7.9) (9.6) 6. (.7) 96.9 (7.7) 7 (.67) 3. (.93) 73. (.88) 98. (3.88) 7 (6.8) 8 (8.98) 33. (.) 77.8 (7.).3 (.8) (.98) 99 (3.9). (.69) (9.6) 7 (.79) 3 (.) 6 (6.3) (.3) 37 (.93) 7 (.8) (.39) 7 (6.8) 87 (7.36) 7. (.69). (.8) 6 (.) 3 (.6) U 3. (.7) 3 (.3) V 6 (.63) 8 (.7) Ω Flow Control (and Check) Valves 697

EFGM-X/Y-/8/9 9.9 (.39) "C" Thd. "" Deep Places (.) 96(3.78) 79.(3.3) 76.(3.) (.3) 38. (.) 9. (.37) "J" Dia. Places 8.8(.3) Dia. Through (.) Dia. Spotface Places.(.) 3.8(.9) EFGM-X- EFGM-Y- EFGM-X-8 EFGM-Y-8 EFGM-X-9 EFGM-Y-9 Thread Size "A" Thd. "B" Thd. "C" Thd. Rc 3/8 Rc / Rc / 3/8 BSP.F / BSP.F / BSP.F M8 3/8 NPT / NPT / NPT /6-8 UNC 6(.7) 78(3.7) D "A" Thd. Places (From Rear) (.39).9(.86) E (.7) (.).(.).3(.7) 7(.8) Dia. (.39) Deep "K" Dia. "B" Thd. (From Rear) (.9) 6 (.63) F.(.6) 8.6(3.) EFGM-X- EFGM-Y- EFGM-X-8 EFGM-Y-8 EFGM-X-9 EFGM-Y-9 Dimensions mm (Inches) D E F J K 8.6 (.3). (.) 8.6 (.3). (.) 8.6 (.3). (.) 7.9 (.99) 7.9 (.87) 7.9 (.99) 7.9 (.87) 7.9 (.99) 7.9 (.87) (.98) 3 (.38) (.) (.98) 3 (.38) (.98) 3 (.38) 8 (.7) (.). (.6) (.9) (.) (.3).7 (.6) (.3) EFGM-3Y/3Z-/8/9 DIMENSIONS IN MILLIMETRES (INCES) 3(.) "B" Thd. (From Rear) 8.(3.). (.6) (.3) "A" Thd. Places (From Rear).7(.6).8(.3) 6. (.63) (.3) (.9).(.3).6(.) 7 (.9).8 (.).6 (.8).(.87) 7.8 (.88) 9.(3.63) 6(.7) 68(6.6).(.) 3(.9) Dia. Places "C" Thd. "D" Deep Places 7(.8) Dia. 8(.3) Deep Places 8.6 (.3) 6.8(.3) 86.(3.).6(.) (.3) Dia. Through 7.(.69) Dia. Spotface Places (.3) Dia. EFGM-3Y- EFGM-3Z- EFGM-3Y-8 EFGM-3Z-8 EFGM-3Y-9 EFGM-3Z-9 Thread Size "A" Thd. "B" Thd. "C" Thd. Rc 3/ Rc Rc / 3/ BSP.F BSP.F / BSP.F M 3/ NPT NPT / NPT 3/8-6 UNC D mm(in.) 8 (.7) (.83) 9 (.7) (.79) (.7) 698 Ω Flow Control (and Check) Valves

SERIES EFGM-6X/6Y-/8/9 "C" Thd. "P" Deep Places (.9) 7 (.67) 8(7.9) 6.(.7).(.69).8(.3) 73(.87).(.87).6(.6) 9(.) Dia. Places 7.(.69) Dia. Through 6(.) Dia. Spotface Places.7(.).3(.63) 7(6.8) 6(.96) D 99(3.9) E "A" Thd. Places (From Rear) "S" Dia. 9 (.7) N 3.7 (.) 33(.3) F Q (8.3) (9.8) K J.8(.3) 33.(.) 7(.67) Dia. (.39) Deep Places "B" Thd. (From Rear) EFGM-6X- EFGM-6Y- EFGM-6X-8 EFGM-6Y-8 EFGM-6X-9 EFGM-6Y-9 "A" Thd. Rc Rc -/ BSP.F -/ BSP.F NPT -/ NPT Thread Size "B" Thd. "C" Thd. Rc 3/8 M6 3/8 BSP.F 3/8 NPT /8- UNC Dimensions mm (Inches) D E F J K N P Q S..3. 37.8 3 3 (3.98) (.6) (.7) (.3) (.77) (.38) (.3) 6 9.3 9.3 67 3 6 39 (.7) (3.7) (.76) (.6) (.) (.36) (.7) (.) 3 (.8). (3.98) 9.3 (3.7). (3.98) 9.3 (3.7).3 (.6) 9.3 (.76).3 (.6) 9.3 (.76). (.7) 67 (.6). (.7) 67 (.6) 37.8 (.3) 3 (.) 37.8 (.3) 3 (.) (.77) 6 (.36) (.77) 6 (.36) 3 (.38) (.7) 3 (.38) (.7) 3 (.3) 39 (.) 3 (.3) 39 (.) 3 (.38) 6 (.7) 6 (.7) (.). (.6) (.9) (.) EFGM-Y-/8/9 36 (.) 8(.89) Dia. Places (From Rear) 77.8(7.) "B" Thd. "C" Deep Places.(.69).(.9) (.79) Dia. (.9) Deep Places (.) Dia. (9.6) 3.(.93) 98.(7.8).6(.6) 96.9(7.7).(.69) 98.(3.88) 7.3(.68) (.98) 3.9 (.37) 73 (.87) 73 (.87) 73 (.87) 73 3. (.87) (.7) 8.(.8) 83.(7.) 8(.8) 33(3.) 3.(.7) Dia. Places "D" Thd. "E" Deep 8 Places (From Rear) 9(.) 8(8.98) (.98) (9.8).(.8) Dia. Through 3(.6) Dia. Spotface Places "A" Thd. (From Rear) EFGM-Y- EFGM-Y-8 EFGM-Y-9 EFGM-Y- EFGM-Y-8 EFGM-Y-9 Thread Size "A" Thd. "B" Thd. "D" Thd. Rc 3/8 3/8 BSP.F 3/8 NPT M 3/- UNC M6 /8- UNC mm (Inches) C E 3 (.8) 3 (.3) 3 (.8) 3 (.38) 8 (3.) E Ω Flow Control (and Check) Valves DIMENSIONS IN MILLIMETRES (INCES) "F3" Pipe Flange Kits Refer to page 8 8(.89) (.97) Ω Flow Control (and Check) Valves 699

Input Current vs. Flow Viscosity: 3 mm /s ( SSU) U.S.GPM 8 7 6 3 U.S.GPM 6 6 3 U.S.GPM 8. 8. 7. L/min 3 EF EFG EFCG - G--3 EF G-- 36 Input Current ma EFG EFCG -6 L/min Differential Pressure vs. Metred Flow Viscosity: 3 mm /s ( SSU) L/min 3 3 8 3 Input Current ma EFG EFCG - 6 U.S.GPM 3. 3...... U.S.GPM 8 6 L/min 8 6 EFG EFCG -3 EF G-3- EF G-3-6 3 6 Input Current ma EFG EFCG - L/min 3 U.S.GPM L/min 3 3 33 3 3 6 Input Current ma EFG EFCG -3 7.. 3.9 3.8.........9..... 3. 3..96.9.. 7. 3.7 3. 3.3.8... U.S.GPM L/min 68 6 66 6 3 Differential Pressure EFG EFCG -6 U.S.GPM L/min 3 3 8 9 6 8 EFG EFCG - Differential Pressure 3 8 6.8.6. 9 9 8 8 78 76...3.3 3 3 9... 3 Differential Pressure 3 3 Differential Pressure 3 7 Ω Flow Control (and Check) Valves

SERIES U.S.GPM L /min 9 3 8 3 7 6 3 U.S.GPM L /min 3 7 6 3 Phase (deg.) Phase (deg.) Step Response Viscosity: 3 mm /s ( SSU) These characteristic s have been obtained by measurin g on each valve. Therefore, they may vary according to a hydraulic circuit to be used. EFG EFCG - 3 L /min (7.9 U.S.GPM) L /min ( U.S.GPM).s Step Signal Time EFG EFCG -6 L /min (66 U.S.GPM) L /min (33 U.S.GPM).s Step Signal Time Frequency Response 6 8 6 8 6 8 Gain (db) EFG EFCG - Frequency (z)..7 7 Phase Input Current : ma Pressure : 6.9 ( ) Gain (db) Gain EFG EFCG -6 Frequency (z)...7 7 Phase Input Current : 6 7 ma Pressure : 6.9 ( ) Gain U.S.GPM L /min 3 3 8 6 U.S.GPM L /min 6 7 3 Phase (deg.) 6 8 6 8 Gain (db) EFG EFCG -3 L /min (33 U.S.GPM) 6 L /min (.9 U.S.GPM).s Step Signal Time EFG EFCG - L /min (3 U.S.GPM) L /min (66 U.S.GPM).s Step Signal Viscosity: 3 mm /s ( SSU) Phase (deg.) 6 8 6 8 Time EFG EFCG -3 Frequency (z)...7 7 3 Phase Input Current : 6 7 ma Pressure : 6.9 ( ) Gain (db) Gain EFG EFCG - Frequency (z)...7 7 Phase Input Current : 7 ma Pressure : 6.9 ( ) Gain EFG EFCG - U.S.GPM L /min Oil: ISO VG 6 Oil 8. 33 8. 3 7. 7. 7. 9.. 6 3. 3. 6. 3. 3 6 7 C Temperature 6 8 6 F 7 3 mm /s Viscosity 3 8 SSU EFG EFCG -3 U.S.GPM L /min Oil: ISO VG 6 Oil 3. 3. 3.. 7 7.. 6. 7. 3.. Temperature 3 6 7 C 6 8 6 F 7 3 mm /s Viscosity 3 8 SSU EFG EFCG -6 U.S.GPM L /min Oil: ISO VG 6 Oil 8 7 6 6 3 3 9 6 3 Temperature 3 6 7 C 6 8 6 F 7 3 mm /s Viscosity 3 8 SSU EFG EFCG - U.S.GPM L /min Oil: ISO VG 6 Oil 6 3 8 3 7 6 9 3 6 Temperature 3 6 7 C 6 8 6 F 7 3 mm/s Viscosity 3 8 SSU Viscosity vs. Flow E Ω Flow Control (and Check) Valves Ω Flow Control (and Check) Valves 7

Pressure Drop for Reversed Free Flow (Only for "EFCG" Models) Oil Viscosity: 3 mm /s (6 SSU) Specific Gravity:.8 EFCG- EFCG-3 Pressure Drop P 7 6 3. Throttle Closed..3 Throttle Fully Open.. 3 Pressure Drop P 8 6 L /min.6.. Throttle Closed Throttle Fully Open L /min.. 7... Free Flow U.S.GPM 3 Free Flow U.S.GPM Pressure Drop P 6 8 6..8.6.. EFCG-6 Throttle Closed Throttle Fully Open 3 L /min Pressure Drop P 6 8 6..8.6.. EFCG- Throttle Closed Throttle Fully Open 6 8 L /min 7 Free Flow U.S.GPM Free Flow U.S.GPM For any other viscosity, multiply the factors in the table below. Viscosity mm /s SSU 6 8 98 86 78 37 6 Factor.87.3..3.3 For any other specific gravity (G'), the pressure drop ( P') may be obtained from the formula below. P'= P (G'/.8) 7 Ω Flow Control (and Check) Valves

SERIES List of Seals and Solenoid Ass'y EFG/EFCG-- -3/39 EFG/EFCG-3- -6/69 3 3 8 7 EF G-3 EF G- 39 6 9 36 39 33 9 36 3 3 A 3 38 6 37 3 7 3 3 3 Detail of A 3 6 6 3 3 With Check Valve (EFCG-, 3) 8 9 8 7 List of Seals and Solenoid Ass'y Part Numbers Item Name of Parts 3 7 8 9 3 3 3 33 3 Note : Solenoid Ass'y Fastener Seal EF G- EF G-3 EFG-- -3 KS-EFG--3 E3-- SO-NB-P8 SO-NB-PA SO-NB-P8 SO-NB-P SO-NB-G E3-- SO-NB-P8 SO-NB-P SO-NB-P8 SO-NB-P3 SO-NB-G3 EFCG-- -3 EFG-3- -6 EFCG-3- -6 KS-EFCG--3 KS-EFG-3-6 KS-EFCG-3-6 SO-NB-P8 SO-NB-P SO-NB-G SO-NB-G3 SO-NA-P SG-FCF- SO-NB-G SO-NB-G3 SO-NA-P SG-FCF- Qty. O-rings (Item,, 3) and the fastener seal (Item ) are included in the solenoid assembly. : The connector assembly GDM--B- (Item ) is not included in the solenoid assembly. 3: When ordering seals, please specify the seal kit number from the table right. List of Seal Kits Valve Seal Kit Numbers E Ω Flow Control (and Check) Valves Ω Flow Control (and Check) Valves 73

List of Seals and Solenoid Ass'y EFG/EFCG-6--/9 EFG/EFCG---/9 6 6 3 3 3 3 9 9 9 3 B B A 7 8 Detail of A 6 3 3 3 8 7 With Check Valve (EFCG-6, ) 6 8 3 Section B-B List of Seals and Solenoid Ass'y Item 3 6 7 8 9 3 3 3 3 Name of Parts Solenoid Ass'y Fastener Seal Part Numbers Valve Seal Kit Numbers Qty. EF G-6 EF G- EFG-6-- KS-EFG-6- E3-- SO-NB-P SO-NB-P SO-NB-P3 SO-NB-P3 SO-NB-P SO-NB-P SO-NA-P SO-NB-G SO-NB-G3 SO-NA-P SG-FCF- E3-- SO-NB-G7 SO-NB-G6 SO-NB-P SO-NB-P8 SO-NB-P3 SO-NB-P6 SO-NA-P SO-NB-G SO-NB-G3 SO-NA-P SG-FCF- 3 EFCG-6-- EFG--- EFCG--- KS-EFCG-6- KS-EFG-- KS-EFCG-- Note: O-rings (Item,, 3) and the fastener seal (Item ) are included in the solenoid assembly. : The connector assembly GDM--B- (Item ) is not included in the solenoid assembly. 3: When ordering seals, please specify the seal kit number from the table right. List of Seal Kits 7 Ω Flow Control (and Check) Valves

SERIES Ω Proportional Electro-ydraulic Flow Control (and Check) Valves Since the preselected flow rate continuously varies in proportion to the current input to the valve, the system flow rate can be remotecontrolled as desired by regulating the current output from the amplifier. Further, since the pressure and temperature compensation functions are provided, the preselected flow rate is not be affected by pressure (load) or temperature (fluid viscosity). This valve is ideal for use where actuator startup, stop, and speed changes are to be implemented without producing a shock. Note that this valve is used in conjunction with the applicable power amplifier. Specifications Description Metred Flow Adj. Range Rated Current Coil Resistance ysteresis Repeatability Approx. Mass Model No. Max. Operating Pressure () L/min (U.S.GPM) Min. Differential Pressure () Free Flow (EFCG Models Only) L/min (U.S.GPM) Min. Pilot Pressure Pilot Flow L/min (U.S.GPM) () at Normal at Transition. Min pressure difference required between inlet and outlet ports to maintain function as pressure compensator.. The minimum required value for the external pilot type. EFC kg (lbs.) Model Number Designation F- Special Seals Number.6 (3) 6: -6 (.6-.9) : - (.6-33). () 3 (3.3). (). (.3).6 (.69) 78 ma 3% or less % or less (.) G Type of Mounting -3 - -E - Valve Size EFG EFCG -6-. (3).- (.66-66). () 8 (7.). () (.6) (.6) 8 ma 3% or less % or less (.) Max. Metred Flow L/min (U.S.GPM) Internal Pilot O M O M Pilot Connection Graphic Symbols Design Number External Pilot O M O M EFG EFCG -3-6 EFG- EFCG- EFG- EFCG- Design Standards E Ω Flow Control (and Check) Valves F: Special Seals for Phosphate Ester Type Fluid (Omit if not required) EF: Proportional Electro-ydraulic Flow Control Valve EFC: Proportional Electro-ydraulic Flow Control and Check Valve G: Mounting 3 6 6 : 6 (.9) : (33) : (66) None: Internal Pilot E: External Pilot Refer to Design Standards: None... Japanese Standard "JIS" and European Design Standard 9... N. American Design Standard Ω Flow Control (and Check) Valves 7

Attachment Mounting bolts Valve Model Numbers EF G-3 EF G-6 Socket ead Cap Screw Japanese Std. "JIS" and European Design Std. M 8 Lg. M6 3 Lg. N. American Design Std. 3/8-6 UNC 3-/ Lg. /8- UNC Lg. Qty. Applicable Power Amplifiers For stable performance, it is recommended that Yuken's applicable power amplifiers be used (for details see page 767, 77, 78). : AME-D-- - AME-D-- SK- - - SK- (For DC power supply) AMN-D- (For DC power supply) Valve Model Numbers EFG EFCG -3 EFG EFCG -6 Japanese Standard "JIS" EFGM-3Y-3 EFGM-3Z-3 EFGM-6X-3 EFGM-6Y-3 Thread Size Rc 3/ Rc Rc Rc -/ European Design Standard EFGM-3Y-38 EFGM-3Z-38 EFGM-6X-38 EFGM-6Y-38 Thread Size 3/ BSP.F BSP.F BSP.F -/ BSP.F N. American Design Standard EFGM-3Y-39 EFGM-3Z-39 EFGM-6X-39 EFGM-6Y-39 Thread Size 3/ NPT NPT NPT -/ NPT Approx. Mass kg (lbs.).7 (.6).6 (.3). (7.6) 6 (3.3) s are available. Specify the sub-plate model number from the tabel above. When sub-ptates are not used, the mounting surface should have a good machined finish. Instructions Drain Back Pressure Check that the drain back pressure dose not exceed. (9 ). Pilot Type Selection This valve is constructed so as to operate at a predetermined pilot pressure. For the 3, a pilot pressure of ( ) or higher is required. For the 6, the requied pilot pressure is. ( ) or higher. To obtain such a required pilot pressure, select the pilot type according to the circuit examples on the right. P.P. O M 3 EFCG- - -E- 6 [Example of Circuit] a A P P.P. B T O M 3 b 3 EFCG- - -E- 6 / Use the external pilot type (pilot connection code: E) whether a metre-in or metre-out circuit is employed. 3 Use the internal pilot type (pilot connection code: None) O M 3 EFG- - - 6 P.P. O M 3 EFG- - -E- 6 Use the external pilot type (pilot connection code: E) 76 Ω Flow Control (and Check) Valves

SERIES EFG EFCG -3-6 - -/9 Connector The direction can be altered to every 9 degree angles. 3 (.) ex. Soc. (.3) Dia. Through 7. (.69) Dia. Spotface Places.7 (.6) Cable Departure Cable Applicable: Outside Dia.... 8- mm (.3 -.39 in.) Conductor Area... Not Exceeding. mm (.3 sq. in.) 39 (.) 8. (6.) Drain Port Outlet Port for Controlled Flow or Inlet Port for Reversed Free Flow.7 (.6).8 (.).6 (.) (.9) 6.8 (.3).6 (.) (.9) 69. (.7) Manual Adjustment Screw 3 (.) ex. Soc. INC. Inlet Port for Controlled Flow or Outlet Port for Reversed Free Flow Pilot Port 7. (.6) 3. (9.7) 68 (.68) 69 (.7) 88 (3.6) Two Locating Pins 6 (.) Dia. Mounting Surface (s Furnished) 6 (.) EFG -6-- -/9 EFCG DIMENSIONS IN MILLIMETRES (INCES) Connector The direction can be altered to every 9 degree angles. Drain Port Outlet Port for Controlled Flow or Inlet Port for Reversed Free Flow 7 (.67) 3 (.) ex. Soc. 73 (.87) 6 (.7) 8 (7.9) Inlet Port for Controlled Flow or Outlet Port for Reversed Free Flow.3 (.8).8 (.3) 33. (.) 7 (6.8) 69. (.7) 7. (.69) Dia. Through 6 (.) Dia. Spotface Places Pilot Port 7. (.6) Manual Adjustment Screw 3 (.) ex. Soc. INC. Cable Departure Cable Applicable: Outside Dia.... 8- mm (.3 -.39 in.) Conductor Area... Not Exceeding. mm (.3 sq. in.) 39 (.) 76. (.89) 99. (7.8) (.9) (.3) (.7) Two Locating Pins 6 (.63) Dia. Mounting Surface (s Furnished) 7 (.8) E Ω Flow Control (and Check) Valves Ω Flow Control (and Check) Valves 77

EFGM-3Y, 3Z-3/38/39 "C" Thd. (From Rear) (.3) Dia. Through 7.(.69) Dia. Spotface Places. (.6).7(.6).8 (.3) (.9).(.3).6(.) 7 (.9).8 (.).6 (.8) 3(.9) Dia. Places "D" Thd. "E" Deep Places 7(.8) Dia. 8(.3) Deep Places 3(.) 8. (3.) (.3) 6. (.63). (.) 8.6 (.3) 6.8 (.3) 86.(3.) 9(3.6).6(.) "B" Thd. Places (.3) Dia. (.3).(.87) 7.8 (.88) 9.(3.63) 6(.7) 68(6.6) 6(.) Dia. "C" Thd. (From Rear) 9(.7) (.79) (.7) EFGM-3Y-3 EFGM-3Z-3 EFGM-3Y-38 EFGM-3Z-38 EFGM-3Y-39 EFGM-3Z-39 Thread Size "B" Thd. "C" Thd. "D" Thd. Rc 3/ Rc Rc / 3/ BSP.F BSP.F / BSP.F M 3/ NPT NPT / NPT 3/8-6 UNC E mm(in.) 8 (.7) (.83) EFGM-6X, 6Y-3/38/39 7(.67) Dia. (.39) Deep Places 7.(.69) Dia. Through 6(.) Dia. Spotface Places 7(6.8) 6(.96) (.9) J 7 (.67) 8(7.9) 6(.7).(.69) 8(.).8(.3) 73(.87).(.87).6 (.6) "A" Thd. Places "C" Thd. "D" Deep Places 3.7(.).7(.).3(.63) 8.7(3.37).8(.3) 33.(.) 36(.3) DIMENSIONS IN MILLIMETRES (INCES) 9(.) Dia. Places "Q" Dia. 9 (.7) 33(.3) E K F 7(.79) (8.3) (9.8) L "B" Thd. (From Rear) "B" Thd. (From Rear) 6(.) Dia. N P EFGM-6X-3 EFGM-6Y-3 EFGM-6X-38 EFGM-6Y-38 EFGM-6X-39 EFGM-6Y-39 Thread Size "A" Thd. "B" Thd. "C" Thd. Rc Rc 3/8 Rc -/ BSP.F 3/8 BSP.F -/ BSP.F M6 NPT -/ NPT 3/8 NPT /8- UNC EFGM-6X-3 EFGM-6Y-3 EFGM-6X-38 EFGM-6Y-38 EFGM-6X-39 EFGM-6Y-39 D 3 (.8) 3 (.38) E. (.7) (.). (.7) (.). (.7) (.) F 37.8 (.3) 3 (.) 37.8 (.3) 3 (.) 37.8 (.3) 3 (.) Dimensions mm (Inches) J K.3 (.6). (3.98) 6 9.3 (.76) 9.3 (3.9) (.7).3 (.6). (3.98) 6 9.3 (.76) 9.3 (3.9) (.7).3 (.6). (3.98) 6 9.3 (.76) 9.3 (3.9) (.7) L 3 (.3) 39 (.) 3 (.3) 39 (.) 3 (.3) 39 (.) N 3 (.38) (.7) 3 (.38) (.7) 3 (.38) (.7) P (.77) 6 (.36) (.77) 6 (.36) (.77) 6 (.36) Q (.3). (.6) (.9) (.3) 78 Ω Flow Control (and Check) Valves

SERIES Input Current vs. Flow Viscosity: 3 mm /s ( SSU) U.S.GPM L /min 3 3 EFG EFCG -3 U.S.GPM L /min 6 6 EFG EFCG -6 7 EF G-3-3 EF G-3-6 6 8 Input Current ma 6 8 Input Current ma Step Response These characteristics have been obtained by measuring on each valve. Therefore, they may vary according to a hydraulic circuit to be used. Viscosity: 3 mm /s ( SSU) U.S.GPM 3 3 L /min 7 EFG EFCG -3 L /min (33 U.S.GPM) 6 L /min (.9 U.S.GPM).s Step Signal Time U.S.GPM 7 6 3 L /min 3 EFG EFCG -6 L /min (66 U.S.GPM) L /min (33 U.S.GPM).s Step Signal Time Frequency Response Viscosity: 3 mm /s ( SSU) EFG EFCG -3 Phase (deg.) EFG EFCG -6 Phase (deg.) - - -6-8 - - - -6-8 - - -6-8 - - - -6-8 - - -3 Gain (db) - - -3 Gain (db) Frequency (z)....7 7 7 Phase : 6 L /min (7. U.S.GPM) Supply Pressure : 3.7 ( ) Gain Frequency (z)....7 7 7 Phase : L /min (33 6.6 U.S.GPM) Supply Pressure : 3.7 ( ) Gain E Ω Flow Control (and Check) Valves Ω Flow Control (and Check) Valves 79

U.S.GPM L /min 37. 3. 3. 3.. 7 7.. 6. Viscosity vs. Flow EFG EFCG -3 Oil: ISO VG 6 Oil 7... 3 3 6 7 C Temperature 6 8 6 F 7 3 mm /s Viscosity 3 8 SSU Differential Pressure vs. Metred Flow U.S.GPM L /min EFG -3 37. EFCG 3. 3. 3. EFG EFCG -6 U.S.GPM L /min 7 8 Oil: ISO VG 6 Oil 7 6 6 3 3 9 6 3 3 6 7 C Temperature 6 8 6 F 7 3 mm /s Viscosity 3 8 SSU.. 7.. 8 7. 7... 8 6 EFG -6 EFCG U.S.GPM L /min 7 7 6 6 3 3 Differential Pressure 3 3 8 6 3 Differential Pressure 7 Ω Flow Control (and Check) Valves

SERIES List of Seals and Solenoid Ass'y EFG -3- - -/9 EFCG 8 3 6 9 37 7 9 6 9 6 3 3 3 7 List of Seal Kits 3 3 7 8 3 39 3 8 3 38 33 Valve EFG-3- - - EFCG-3- - - Seal Kit Numbers KS-EFG-3- KS-EFCG-3-36 3 List of Seals and Solenoid Ass'y With Check Valve (EFCG-3) Note: The connector assembly GDM--B- (Item 6) is not included in the solenoid assembly. Note: When ordering seals, please specify the seal kit number from the table right. In addition to the right o-rings, seals for solenoid ass'y is included in the seal kit. For the detail of the solenoid ass'y seals, see page 67. EFG -6-- -/9 EFCG Item 3 33 3 3 36 37 38 39 Name of Parts Solenoid Ass'y Part Numbers E38-Y6M-8-6 SO-NB-G3 SO-NB-P8 SO-NB-P8 SO-NB-P6 SO-NB-P6 SO-NB-P SO-NB-P9 SO-NB-P6 SO-NA-A6 Qty. 3 3 8 9 39 3 6 9 3 38 7 7 7 9 7 3 3 B 6 8 3 Detail of "A" B A C C 3 3 36 37 38 With Check Valve (EFCG-6) 8 8 39 7 6 Section B-B Note: The connector assembly GDM--B- (Item 3) is not included in the solenoid assembly. Note: When ordering seals, please specify the seal kit number from the table right. In addition to the right o-rings, seals for solenoid ass'y is included in the seal kit. For the detail of the solenoid ass'y seals, see page 67. 38 9 3 33 6 List of Seal Kits Valve EFG-6-- - EFCG-6-- - Detail of Section C-C Seal Kit Numbers KS-EFG-6- KS-EFCG-6- List of Seals and Solenoid Ass'y Item Name of Parts Part Numbers 3 33 3 3 36 37 38 39 Solenoid Ass'y E38-Y6M-8-6 SO-NA-P SO-NB-P SO-NB-P6 SO-NB-P36 SO-NB-P3 SO-NB-P3 SO-NA-P SO-NB-P SO-NB-P9 Two O-rings are required for the EFCG. Qty. 3 3 E Ω Flow Control (and Check) Valves Ω Flow Control (and Check) Valves 7

Ω Ω Proportional Electro-ydraulic Flow Control and Relief Valves This flow control and relief valve is an energy-saving valve that supplies the minimum pressure and flow necessary for actuator drive. Since this valve controls the pump pressure by following the load pressure while keeping the differential pressure minimized, it serves as a low powerconsumption energy - saving, metre-in, controlled flow control valve. Further, since a temperature compensation function is incorporated, this valve provides consistent flow control without respect to the fluid temperature. Specifications Description Model No. EFBG-3 -- -7 EFBG-6 -- -7 EFBG- -- -7 Max. Operating Pressure (). (3). (3). (3) Max. Flow L/min (U.S.GPM) (33) (66) (3) Metred Flow Adjustment Range L/min (U.S.GPM) Rated Current Coil Resistance Differential Pressure () Flow Controls ysteresis 7% or less 7% or less 7% or less Repeatability % or less % or less % or less C:.-3.7 C:.-3.7 C:.6-3.7 (-) (-) (3-) Pres. Adj. Range () :.-.6 :.-.6 :.6-.6 (-3) (-3) (3-3) Rated Current C : 7 ma C : 69 ma C : 69 ma : 7 ma : 73 ma : 69 ma Coil Resistance ysteresis 3% or less 3% or less 3% or less Repeatability % or less % or less % or less Approx. Mass kg (lbs.) Refer to page 7 to 76 Pressure Controls - (.6-33) 6 ma.- (.66-66) 8 ma - (.3-3) 7 ma.6 (8).7 ().9 (3). The specifications for pressure controls are applied to models with proportional pilot relief valve. (Ex. EFBG-3--C-7). The maximum pressure adjustment range of the models without proportional pilot relief valves is. (3 ). Graphic Symbols O M V V O M A P With Proportional Pilot Relief Valve A Y T Y T Model Number Designation P Without Proportional Pilot Relief Valve F- Special Seals EFB Number G Type of Mounting -3 Valve Size - Max. Metred Flow L/min (U.S.GPM) -C Proportional Pilot Relief Valve Pressure Adjustment Range -7 Design Number Design Standards F: Special Seals for Phosphate Ester Type Fluid (Omit if not required) EFB: Proportional Electro- ydraulic Flow Control and Relief Valve G: Mounting 3 6 : ( 33) : ( 66) : ( 3) C, : See Specifications None: Without Proportional Pilot Relief Valve 7 7 7 Refer to Design Standards: None... Japanese Standard "JIS" and European Design Standard 9... N. American Design Standard 7 Ω-Ω Flow Control and Relief Valves

SERIES Attachment Mounting Bolts Valve Model Numbers EFBG-3 EFBG-6 EFBG- Socket ead Cap Screw Japanese Std. "JIS" and European Design Std. M Lg. M6 3 Lg. M 3 Lg. N. American Design Std. 3/8-6 UNC Lg. /8- UNC Lg. 3/- UNC Lg. Qty. Applicable Power Amplifiers For stable performance, it is recommended that Yuken' s applicable power amplifiers be used (for details see page 77, 778). Valve EFBG-3--7/79 EFBG-6--7/79 EFBG---7/79 3 EFBG-6- - C -7/79 Power Amplifier For Flow Control For Pres. Control AME-D-S- - AME-DF-S- - AME-T-S- - AME-D-- - Valve Model Numbers EFBG-3 EFBG-6 EFBG- Japanese Standard "JIS" EFBGM-3Y- EFBGM-3Z- EFBGM-6X- EFBGM-6Y- EFBGM-Y- Thread Size Rc 3/ Rc Rc Rc -/ -/, Flange Mounting European Design Standard EFBGM-3Y-8 EFBGM-3Z-8 EFBGM-6X-8 EFBGM-6Y-8 EFBGM-Y-8 Thread Size 3/ BSP.F BSP.F BSP.F -/ BSP.F -/, Flange Mounting N. American Design Standard EFBGM-3Y-9 EFBGM-3Z-9 EFBGM-6X-9 EFBGM-6Y-9 EFBGM-Y-9 Thread Size 3/ NPT NPT NPT -/ NPT -/, Flange Mounting Approx. Mass kg (lbs.) 6 (3.). (7.6) 6 (3.3) 37 (8.6) s are available. Specify the sub-plate model number from the table above. When sub-plates are not used, the mounting surface should have a good machined finish. When ordering the EFBGM-Y, see Type F3 Pipe Flange Kits on page 8 and order an appropriate pipe flange kit also. Instructions Drain Back Pressure Check that the drain back pressure dose not exceed. (9 ). When Relief Valve Passing is Low in Pressure Control State To avoid preselected pressure instability, use a passing flow rate of L/min (.6 U.S.GPM) or higher for nominal sizes 3 and 6 or L/min (. U.S.GPM) or higher for nominal size. Further, check that the tank-line back pressure does not exceed. (7 ). Safety Valve Pressure Setting The pressure of the safety valve is preset at the value equal to the upper limit of the pressure adjustmen t range plus (9 ). Please adjust the pressure of the valve so preset to meet the pressure to be used actually. To lower the pressure setting, turn the safety valve pressure adjustment screw anti-clockwise. After adjustment, be sure to tighten the lock nut. E Ω-Ω Flow Control and Relief Valves Ω-Ω Flow Control and Relief Valves 73

Models with Proportional Pilot Relief Valve EFBG-3-- C -7/79 Pressure Adj. Screw for Safety Valve 3 (.) ex. Soc. INC. Lock Nut (.39) ex. 3 (.) ex. Soc. 38 (.) 6.7 (.3) 88 (7.) 37.7 (.8) Cable Departure Cable Applicable: Outside Dia.... 8- mm (.3 -.39 in.) Conductor Area... Not Exceeding. mm (.3 sq. in.) Inlet Port "P" 3. (.). (.6) Fully Extended 6(8.).6 (3.96) 39 (.) The direction can be altered to every 9 degree angles Outlet Port "A".7 (.6).8 (.).6 (.) (.9) Drain Port "Y" 6.8 (.3) Vent Port "V".6 (.) 3 (.) (.3) Dia. Through 7. (.69) Dia. Spotface Places Tank Port "T" Manual Flow Adjustment M Thd. (Internal Thd.) INC. Cable Departure Cable Applicable: Outside Dia.... 8- mm (.3 -.39 in.) Conductor Area...Not Exceeding. mm (.3 sq. in.) 3 (.) ex. Soc. Connector 8 (3.) Connector The direction can be altered to 9 degree angles. Manual Pressure Adj. Screw 3 (.) ex. Soc. INC. 39 (.) (8.3) DIMENSIONS IN MILLIMETRES (INCES). (.3) Manual flow adjustment can be done by screwing for example an M L screw in the M thread or pushing in a rod etc. there. 7. (.6) (.6) Mounting Surface (s Furnished) 6 (.) 8 (3.3) (.9) Two Locating Pins 6(.) Dia. Approx. Mass... 6 kg (3.3 lbs.) Models without Proportional Pilot Relief Valve EFBG-3--7/79 7.7 (.88) 9.7 (.7) 7 (6.8) Fully Extended. (.) Lock Nut (.39) ex. Manual Pressure Adjustment Screw for Safety Valve 3(.) ex. Soc. INC. For other dimensions, please refer to the models with proportional pilot relief valve. Approx. Mass... kg (3.9 lbs.) 7 Ω-Ω Flow Control and Relief Valves

SERIES Models with Proportional Pilot Relief Valve C EFBG-6-- -7/79 Pressure Adj. Screw for Safety Valve 3(.) ex. Soc. INC. Lock Nut (.39) ex. 3 (.) ex. Soc. Fully Extended 3. (.8) 67 (.6) 3 (.69) 7 (9.7) Cable Departure Cable Applicable: Outside Dia.... 8- mm (.3 -.39 in.) Conductor Area... Not Exceeding. mm (.3 sq. in.) Inlet Port "P".3 (.8) 39 (.) Fully Extended 6(8.) 6. (.8) 33. (.) 7 (6.8) 8 (3.3) The direction can be altered to every 9 degree angles. Outlet Port "A" 7 (.67) Drain Port "Y" 73 (.87) 6. (.7) 8 (7.9) 7.(.69) Dia. Through 6(.) Dia. Spotface Places Tank Port "T" Manual Flow Adjustment M Thd. (Internal Thd.) Vent Port "V" INC. Cable Departure Cable Applicable: Outside Dia.... 8- mm (.3 -.39 in.) Conductor Area... Not Exceeding. mm (.3 sq. in.) 3 (.) ex. Soc. 3. (.8) 7. (.6) 6 (.) Connector 8 (3.) Connector The direction can be altered to 9 degree angles. 7 (.) 39 (.) 7 (6.8) (9.6) DIMENSIONS IN MILLIMETRES (INCES) Manual Pressure Adjustment Screw 3(.) ex. Soc. INC. Models without Proportional Pilot Relief Valve EFBG-6--7/79 Fully Extended 9(.69) Mounting Surface (s Furnished) 38 (9.37) 8 (.8) 3 (.69) Two Locating Pins 6 (.63) Dia. 7 (.8) Approx. Mass... 3 kg (66. lbs.) Manual flow adjustment can be done by screwing for example an M L screw in the M thread or pushing in a rod etc. there. E Ω-Ω Flow Control and Relief Valves Lock Nut (.39) ex. Manual Pressure Adj. Screw for Safety Valve 3(.) ex. Soc. INC. Approx. Mass... 8 kg (6.7 lbs.) For other dimensions, please refer to the models with Proportional Pilot Relief Valve. Ω-Ω Flow Control and Relief Valves 7

Models with Proportional Pilot Relief Valve C EFBG--- -7/79 Pressure Adj. Screw for Safety Valve 3(.) ex. Soc. INC. Lock Nut (.39) ex. 3 (.) ex. Soc. Fully Extended 6(8.). (.89) 6. (.9) 73. (.89) Inlet Port "P" 8. (.9) 3 (.) Cable Departure Cable Applicable: Outside Dia.... 8- mm (.3 -.39 in.) Conductor Area... Not Exceeding. mm (.3 sq. in.) M8 Thd. 6(.63) Deep Places for Eye Bolts (.3) 3 (.9) 77.8 (7.) (8.8) 39 (.) The direction can be altered to every 9 degree angles. Cable Departure Cable Applicable: Outside Dia.... 8- mm (.3 -.39 in.) Conductor Area... Not Exceeding. mm (.3 sq. in.) Manual Pressure Adjustment Screw 3(.) ex. Soc. INC. Outlet Port "A" 7. (.6) 3. (.93) Drain Port "Y" Connector 98. (3.88) 96.9 (7.7) (9.6) 8 (3.).(.8) Dia. Through 3(.6) Dia. Spotface Places Vent Port "V" Tank Port "T" Manual Flow Adjustment M Thd. (Internal Thd.) Connector The direction can be altered to 9 degree angles. 39 (.) INC. 3 (.) ex. Soc. 9. (8.6) (.9) Mounting Surface (s Furnished) 7 (.) Two Locating Pins 8(.7) Dia. 87 (7.36) 7 (.79) (.39) Approx. Mass... 6 kg (3 lbs.) 9. (.3) 3 (.8). (.63) Fully Extended.(.73) 7 (.76) DIMENSIONS IN MILLIMETRES (INCES) Manual adjustment can be done by screwing for example an M L screw in the M thread or pushing in a rod etc. there. Models without Proportional Pilot Relief Valve EFBG---7/79 Lock Nut (.39) ex. Manual Pressure Adj. Screw for Safety Valve 3(.) ex. Soc. INC. Approx. Mass... 8 kg (8 lbs.) For other dimensions, please refer to the models with Proportional Pilot Relief Valve. 76 Ω-Ω Flow Control and Relief Valves

SERIES EFBGM-3Y/3Z-/8/9 "C" Thd. "D" Deep Places (.3) Dia. Through 7.(.69) Dia. Spotface Places. (.6) 3(.).6(.) (3.9) 8(3.) 9(.3) (.79).7 (.6).8 (.3) (.9).(.3).6(.) 77.8(3.6).8(.) 3.8(.9) 3(.9) Dia..7 (.) 7(.8) Dia. 7(.8) Deep Places 8.6 (.3) 88.9(3.) 9.3(3.7). (.87) 39. "E" Dia. (.) "B" Thd.(From Rear) (.3) 6(.) Dia. 6.8(.) 6(.7) 68(6.6) "A" Thd. (From Rear) "B" Thd. (From Rear) (.7) EFBGM-3Y- EFBGM-3Z- EFBGM-3Y-8 EFBGM-3Z-8 EFBGM-3Y-9 EFBGM-3Z-9 "A" Thd. Rc 3/ Rc 3/ BSP.F BSP.F 3/ NPT NPT Thread Size "B" Thd. Rc / / BSP.F mm (in.) "C" Thd. D E M 8 (.7) / NPT 3/8-6 UNC (.83) (.3).7 (.6) (.3) B E 9 6(.63) (.7) EFBGM-6X/6Y-/8/9 "K" Thd. "L" Deep Places 7.(.69) Dia. Through 6(.) Dia. spotface Places 7(6.8) (.9) 6(.96) 33(.3) 7 (.67) 8(7.9) 6.(.7).(.69) 8.(.6) 73.(.88) 8.(.).6(.6) 9(.7) (8.3) "N" Dia. "" Thd. (From Rear) (9.8) (.79) 9(.) Dia. 3.7(.) D.7(.) 7(.67) Dia. (.39) Deep Places.3(.63) 8.7(3.37) 7(.) 33.(.).3 (.8) "F" Thd. (From Rear) 6.(.) Dia. "J " Thd. (From Rear) C Model No. EFBGM-6X EFBGM-6Y Dimensions B C 3.3 (.7) 9 (3.7) DIMENSIONS IN MILLIMETRES (INCES) (.77) 6 (.36) mm (in.) D 3 (.38) (.) E 3 (.3) 39 (.) E Ω-Ω Flow Control and Relief Valves Thread Size Model No. "F" Thd. "" Thd. "J " Thd. EFBGM-6X- EFBGM-6Y- EFBGM-6X-8 EFBGM-6Y-8 EFBGM-6X-9 EFBGM-6Y-9 Rc Rc -/ BSP.F -/ BSP.F NPT -/ NPT Rc 3/8 3/8 BSP.F 3/8 NPT Rc / / BSP.F / NPT mm (in.) "K" Thd. L N M 6 M 6 /8- UNC 3 (.8) 3 (.8) 3 (.38) (.). (.6) (.) Ω-Ω Flow Control and Relief Valves 77

EFBGM-Y-/8/9 DIMENSIONS IN MILLIMETRES (INCES) (9.6) "D" Thd. "F" Deep Places.(.8) Dia. Through 3(.6) Dia. spotface Places 36. (.) 3. (.93).6 (.6) 98.(7.8) 96.9(7.7) 6(6.38) 98. (3.88) 3 (.38) 73 (.87) 3.(.7) Dia. "E" Thd. "F" Deep Places (From Rear) (.79) Dia. (.9) Deep Places 3 (.9) (9.8) 77.8(7.).(.69) 9(.69) (8.8) 73 (.87) 7 (.83) (8.3) 73 (.87) (.98) 33(3.) (.97) 8 (3.). (.9) 7. (.69) 73 (.87) 9 (.) 3. (.7) 8(.89) Dia. (From Rear) "" Dia. "B" Thd. (From Rear) 8(.8) 6.(.) Dia. "C" Thd. (From Rear) Thread Size mm (in.) "B" Thd. "C" Thd. "D" Thd. "E" Thd. F EFBGM-Y- EFBGM-Y-8 EFBGM-Y-9 Rc 3/8 3/8 BSP.F 3/8 NPT Rc / / BSP.F / NPT M M6 3/- UNC /8- UNC 3 (.6) 3 (.3) (.). (.6) (.) 78 Ω-Ω Flow Control and Relief Valves

SERIES Step Response These characteristics have been obtained by measuring on each valve. Therefore, they may vary according to a hydraulic circuit to be used. Flow Controls EFBG-3 U.S.GPM L /min 6 3 3 8 6.s Step Signal Time U.S.GPM L /min 8 3 7 6 3 EFBG-6.s Step Signal Time Viscosity: 3 mm /s ( SSU) EFBG- U.S.GPM L /min 6 7.s 3 Step Signal Time Pressure Pressure Controls Viscosity: 3 mm /s ( SSU) EFBG-3 EFBG-6 3 EFBG-3-- 8 EFBG-3--C.s Pressure 3 EFBG-6-- 8 EFBG-6--C.s Pressure 3 8 EFBG- EFBG--- EFBG---C.s 6 Step Signal 6 Step Signal 6 Step Signal Time Time Time Input Current vs. Flow EFBG-3 U.S.GPM L /min 3 Pressure 3 7 3 6 Input Current ma Input Current vs. Pressure EFBG-3 3 3 EFBG-3-- Viscosity: 3 mm /s ( SSU) EFBG-6 U.S.GPM L /min 8 3 7 6 3 3 6 Input Current ma Viscosity: 3 mm /s ( SSU) EFBG-6 Pressure 3 3 EFBG-6-- 7 U.S.GPM L /min Pressure 7 3 3 EFBG- 3 3 6 7 Input Current ma EFBG- EFBG--- E Ω-Ω Flow Control and Relief Valves EFBG-3--C 6 8 Input Current ma EFBG-6--C 6 8 Input Current ma EFBG---C 6 8 Input Current ma Ω-Ω Flow Control and Relief Valves 79

List of Seals, Solenoid Ass'y and Safety Valve EFBG-3-- -7/79 EFBG-6-- -7/79 A 3 B 3 3 Detail of "B" A 6 9 7 9 8 6 39 8 8 37 38 7 3 3 6 33 7 3 3 8 6 3 3 9 7 9 36 9 3 3 6 8 7 3 37 38 8 8 Without Proportional Pilot Relief Valve Section A-A List of Seals Item 3 6 7 8 9 3 3 3 Name of Parts Part Numbers EFBG-3 EFBG-6 SO-NA-P6 SO-NA-P6 SO-NB-G3 SO-NB-P SO-NB-P3 SO-NB-P SO-NB-P8 SO-NB-P3 SO-NB-P3 SO-NB-P SO-NB-P SO-NB-P SO-NB-P SO-NA-P SO-NB-P9 SO-NB-P9 SO-NB-A3 SO-NB-A3 Qty. 3 List of Seal Kits Valve EFBG-3--7 EFBG-3--C/-7 EFBG-6--7 EFBG-6--C/-7 Seal Kit Numbers KS-EFBG-3-7 KS-EFBG-3-C-7 KS-EFBG-6-7 KS-EFBG-6-C-7 Solenoid Ass'y and Safety valve Valve Model Number s 7 Solenoid Ass'y Model No. 6 Solenoid Ass'y Model No. 8 Safety Valve Model No. EFBG-3--C/-7/79 E38-Y6M--6 EFBG-6--C/-7/79 E3-- SB9- EFBG-3--7/79 EFBG-6--7/79 Note: The connector assembly GDM--B- (Item 9) is not included in the solenoid assembly. When ordering seals, please specify the seal kit number from the table above. In addition to the above o-rings, seeals for solenoid ass'y 6 and 7 are included in the seal kit. For the details of seals for solenoid ass'y 6, see page 7 and for solenoid ass'y 7 see page 67. 7 Ω-Ω Flow Control and Relief Valves

SERIES List of Seals, Solenoid Ass'y, Pilot Relief Valves and Safety Valve EFBG--- -7/79 9 3 3 6 7 33 3 3 3 3 9 A A 8 3 C 39 3 7 3 33 36 6 3 Section A-A Detail of Safety Valve (Item ) 8 9 37 38 9 B 3 Detail of "C" 6 8 7 Section B-B B Without Proportional Pilot Relief Valve List of Seals and Solenoid Ass'y Item 9 3 6 7 8 Name of Parts Solenoid Ass'y Part Numbers SO-NA-P6 SO-NB-G6 SO-NB-G SO-NB-P SO-NB-P8 SO-NA-P SO-NB-P SO-NB-P PO-NB-P SO-NB-A3 E3-- Qty. 3 List of Seal Kits Valve EFBG---7 EFBG---C/-7 Note: The connector assembly GDM--B- (Item ) is not included in the solenoid assembly. When ordering seals, please specify the seal kit number from the table right. In addition to the above o-rings, seals for Pilot Valve and solenoid ass'y are included in the seal kit. Seal Kit Numbers KS-EFBG--7 KS-EFBG--C-7 E Ω-Ω Flow Control and Relief Valves Pilot Valves and Safety Valve Valve 3 Proportional Pilot Relief Valve Safety Valve EFBG---7/79 SB9- EFBG---C-7/79 EDG-V-C--P8T7-3 EFBG----7/79 EDG-V---PNT3-3 Note: For the details of seals for solenoid ass'y, see page 7 and for pilot relief valve 3 see page 67. Ω-Ω Flow Control and Relief Valves 7

Ω Ω Proportional Electro-ydraulic Flow Control and Relief Valves This flow control and relief valve is an energy-saving valve that supplies the minimum pressure and flow necessary for actuator drive. Since this valve controls the pump pressure by following the load pressure while keeping the differential pressure minimized, it serves as a low powerconsumption energy-saving, metre-in, controlled flow control valve. Further, since a temperature compensation function is incorporated, this valve provides consistent flow control without respect to the fluid temperature. Specifications Description EFBG-3 -- - -6 EFBG-6 -- - -6 EFBG- -- - - Max. Operating Pressure (). (3). (3). (3) Max. Flow L/min (U.S.GPM) (33) (66) (3) Metred Flow Adjustment Range L/min (U.S.GPM) Flow Controls Pressure Controls ysteresis Repeatability - (.6-33).- (.66-66) Min. Pilot Pressure (). (). () Pilot Flow at Normal (.6) (.6) L/min (U.S.GPM) at Transition 3 (.79) (.6) Rated Current Coil Resistance 8 ma 7 ma Differential Pressure () Pres. Adj. Range Rated Current Coil Resistance ysteresis Repeatability () 3% or less % or less 3% or less % or less - (.3-3). () (.6) 6 (.9) 9 ma.7 ().7 ().9 (3) 3% or less % or less C:.-.7 (-7) C:.-.7 (-7) C:.-.7 (-7) :.-. :.-. :.-. (-3) (-3) (-3) C : 89 ma C : 8 ma C : 8 ma : 93 ma : 88 ma : 9 ma 3% or less % or less 3% or less % or less Approx. Mass kg (lbs.) Refer to page 7 to 76 3% or less % or less. The specifications for pressure controls are applied to models with proportional pilot relief valve. (Ex. EFBG-3--C- -6). The maximum pressure adjustment range of the models without proportional pilot relief valves is. (3 ). Graphic Symbols With Proportional Pilot Relief Valve External Pilot X O M V O M Internal Pilot A Y T Without Proportional Pilot Relief Valve External Pilot Internal Pilot P A X Y O M V O M T P 7 Ω-Ω Flow Control and Relief Valves

SERIES Model Number Designation F- EFB Special Seals Number F: Special Seals for Phosphate Ester Type Fluid (Omit if not required) EFB: Proportional Electro- ydraulic Flow Control and Relief Valve G Type of Mounting G: Mounting -3 Valve Size 3 6 - Max. Metred Flow L/min (U.S.GPM) : ( 33) : ( 66) : ( 3) Design Standards: None... Japanese Standard "JIS" and European Design Standard 9... N. American Design Standard -C Proportional Pilot Relief Valve Pressure Adj. Range C, : See Specifications None: Without Proportional Pilot Relief Valve -E Pilot Connection None: Internal Pilot E: External Pilot -6 Design Number 6 6 Design Standards Refer to Attachment Mounting Bolts Valve Model Numbers EFBG-3 EFBG-6 EFBG- Socket ead Cap Screw Japanese Std. "JIS" and European Design Std. M 6 Lg. M6 Lg. M 3 Lg. N. American Design Std. 3/8-6 UNC -/ Lg. /8- UNC Lg. 3/- UNC Lg. Qty. Applicable Power Amplifiers For stable performance, it is recommended that Yuken's applicable power amplifiers be used (for details see page 767, 78). Valve Model Numbers EFBG-3 EFBG-6 EFBG- Valve EFBG-3-(-E)-6/69 EFBG-6-(-E)-6/69 EFBG--(-E)-/9 EFBG-3--C/(-E)-6/69 EFBG-6--C/(-E)-6/69 EFBG---C/(-E)-/9 Japanese Standard "JIS" EFBGM-3Y- EFBGM-3Z- EFBGM-6X- EFBGM-6Y- EFBGM-Y- Thread Size Rc 3/ Rc Rc Rc -/ -/, Flange Mounting Power Amplifier For Flow Control For Pres. Control AME-D-- - AMN-D- (For DC Power Supply) AME-D-- European Design Standard EFBGM-3Y-8 EFBGM-3Z-8 EFBGM-6X-8 EFBGM-6Y-8 EFBGM-Y-8 Thread Size 3/ BSP.F BSP.F BSP.F -/ BSP.F -/, Flange Mounting N. American Design Standard EFBGM-3Y-9 EFBGM-3Z-9 EFBGM-6X-9 EFBGM-6Y-9 EFBGM-Y-9 Thread Size 3/ NPT NPT NPT -/ NPT -/, Flange Mounting Approx. Mass kg (lbs.) 6 (3.). (7.6) 6 (3.3) 37 (8.6) s are available. Specify the sub-plate model number from the table above. When sub-plates are not used, the mounting surface should have a good machined finish. When ordering the EFBGM-Y, see Type F3 Pipe Flange Kits on page 8 and order an appropriate pipe flange kit also. Instructions Drain Back Pressure Check that the drain back pressure dose not exceed. (9 ). When Relief Valve Passing is Low in Pressure Control State To avoid preselected pressure instability, use a passing flow rate of L/min (. U.S.GPM) or higher. Further, check that the tank-line back pressure dose not exceed. (7 ). Safety Valve Pressure Setting The pressure of the saffety valve is preset at the value equal to the upper limit of the pressure adjustment renge plus (9 ). Please adjust the pressure of the valve so preset to meet the pressure to be used actually. To lower the pressure setting, turn the safety valve pressure adjustment screw anti-clockwise. After adjustment, be sure to tighten the lock nut. E Ω-Ω Flow Control and Relief Valves Ω-Ω Flow Control and Relief Valves 73

Models with Proportional Pilot Relief Valve C EFBG-3-- (-E)-6/69 Outlet Port "A" Pilot Pressure Port "X" Vent Port "V". (.6).8 (.) 3 (.).6 (.) 9.8 (3.73) 6.8 (.3) (.3) Dia. Through 7.(.69) C'Bore Places.7 (.6).8 (.) 7. (.6).6 (.) (.9) 3 (.) 33.3 (.3) (.8) Inlet Port "P" Tank Port "T" Drain Port "Y" View Arrow Z Manual Pressure Adj. Screw 3(.) ex. Soc. INC. Cable Departure Cable Applicable: Outside Dia.... 8- mm (.3 -.39 in.) Conductor Area... Not Exceeding. mm (.3 sq. in.) Manual Flow Adj. Screw 3(.) ex. Soc. INC. Cable Departure Cable Applicable: Outside Dia.... 8- mm (.3 -.39 in.) Conductor Area... Not Exceeding. mm (.3 sq. in.) Models without Proportional Pilot Relief Valve EFBG-3-(-E)-6/69 39 (.) 3 (.) ex. Soc. 3 (.) ex. Soc. Pressure Adj. Screw for Safety Valve 3(.) ex. Soc. Lock Nut (.39) ex. INC. INC. Pressure Adj. Screw for Safety Valve 3(.) ex. Soc. Lock Nut (.39) ex. 8. (9.78) 7.8 (6.7) 9 (.3) 8. (.9) Fully Extended 6(6.3) 6 (.) Two Locating Pins 6 (.) Dia. Z Mounting Surface (s Furnished) Approx. Mass... kg (3.9 lbs.) For other dimensions, please refer to the models with Proportional Pilot Relief Valve. DIMENSIONS IN MILLIMETRES (INCES) Approx. Mass... 3.3 kg (9.3 lbs.) 7 Ω-Ω Flow Control and Relief Valves

SERIES Models with Proportional Pilot Relief Valve C EFBG-6-- (-E)-6/69 7.(.69) Dia. Through 6(.) Dia. Spotface Places 3 (.) ex. Soc. Inlet Port "P".3 (.8) 7 (6.8) 33. (.) 9.7 (.) 8.7 (3.37) 9.7 (.78) (.3) Tank Port "T" Drain Port "Y" 3 (.) ex. Soc. 7 (.67) Models without Proportional Pilot Relief Valve EFBG-6-(-E)-6/69 INC. Pressure Adj. Screw for Safety Valve 3(.) ex. Soc. Lock Nut (.39) ex. Manual Pressure Adj. Screw 3(.) ex. Soc. INC. Cable Departure Cable Applicable: Outside Dia.... 8- mm (.3 -.39 in.) Conductor Area... Not Exceeding. mm (.3 sq. in.) 89. (.) 39 (.). (8.3) 77 (3.3) 76 (.99) 8 (.3) Two Locating Pins 6(.63) Dia. Pilot Pressure Port "X" 7. (.6) 73. (.88) Vent Port "V" Outlet Port "A" Fully Extended 9(7.68) Mounting Surface (s Furnished) 6. (.7) 8 (7.9) Manual Flow Adj. Screw 3(.) ex. Soc. INC. Cable Departure Cable Applicable: Outside Dia.... 8- mm (.3 -.39 in.) Conductor Area... Not Exceeding. mm (.3 sq. in.) Pressure Adj. Screw for Safety Valve 3(.) ex. Soc. INC. Lock Nut (.39) ex. Approx. Mass... kg (8. lbs.) E Ω-Ω Flow Control and Relief Valves For other dimensions, please refer to the models with Proportional Pilot Relief Valve. DIMENSIONS IN MILLIMETRES (INCES) Approx. Mass....3 kg (7. lbs.) Ω-Ω Flow Control and Relief Valves 7

Models with Proportional Pilot Relief Valve EFBG--- C (-E)-/9 Pressure Adj. Screw for Safety Valve 3 (.) ex. Soc. INC. Lock Nut (.39) ex.. (.8) Dia. Through 3 (.6) Dia. Spotface Places Inlet Port "P" Connector The direction can be altered to every 9 degree angles. 6. (.7) 39 (.) (.83) (8.66) 77.8 (7.) (.3) (.6) Sling Fitting Places Tank Port "T" Vent Port "V" Drain Port "Y" 7. (.6) 69. (.7) 98. (3.88) 3 (.) ex. Soc. 3.6 (.93) 96.9 (7.7) (9.6) DIMENSIONS IN MILLIMETRES (INCES) Models without Proportional Pilot Relief Valve EFBG--(-E)-/9 (.7) Manual Pressure Adj. Screw 3 (.) ex. Soc. INC. Manual Flow Adj. Screw 3 (.) ex. Soc. INC. Outlet Port "A" Cable Departure Cable Applicable: Outside Dia.... 8- mm (.3 -.39 in.) Conductor Area... Not Exceeding. mm (.3 sq. in.) Pilot Pressure Port "X" Fully Extended 6(8.9) 3 (.) ex. Soc. Cable Departure Cable Applicable: Outside Dia.... 8- mm (.3 -.39 in.) Conductor Area... Not Exceeding. mm (.3 sq. in.) Lock Nut (.39) ex. 3 (.) Pressure Adj. Screw for Safety Valve 3 (.) ex. Soc. 7. (.6) 39 (.) INC. 3. (.) (9.9). (9.6) 3. (.66) Connector The direction can be altered to 9 degree angles. 7 (.) 6 (.7) X A 76 (6.93) (.39) Two Locating Pins 8(.7) Dia. Mounting Surface (s Furnished) X A Approx. Mass... 6 kg ( lbs.) For other dimensions, please refer to the models with Proportional Pilot Relief Valve. Approx. Mass... 6 kg (37 lbs.) 76 Ω-Ω Flow Control and Relief Valves

SERIES 3Y EFBGM- -/8/9 3Z (.9) (.3) Dia. Through 7.(.69) Dia. Spotface Places 3(.) "D" Thd. "F " Deep Places. (.6).6(.) (3.9) 8(3.) (.77) (.79).7(.6).8(.3) 6(.) Dia. "C" Thd. (From Rear) "F" Dia. "C" Thd. (From Rear) (.3).(.3).6(.) 77.8(3.6).8(.) 3.8(.9) X A P V Y.(.87) 39. (.) 6.8(.) 6(.7) 68(6.6) T 3(.9) Dia. 7(.8) Dia. 7(.8) Deep Places.7(.) 8.6(.3) "B" Thd. (From Rear) 6(.) Dia. "C" Thd. 9(.7) (.79) 9(.3) 88.9(3.) (.7) 9.3(3.7) EFBGM-3Y- EFBGM-3Z- EFBGM-3Y-8 EFBGM-3Z-8 EFBGM-3Y-9 EFBGM-3Z-9 Thread Size "B" Thd. "C" Thd. "D" Thd. Rc 3/ Rc Rc / 3/ BSP.F BSP.F / BSP.F M 3/ NPT NPT / NPT 3/8-6 UNC mm (in.) E F 8 (.7) (.83) (.3).7 (.6) (.3) EFBGM- 6X -/8/9 6Y DIMENSIONS IN MILLIMETRES (INCES) 8(7.9) "L " Thd. "N" Deep Places 7.(.69) Dia. Through 6(.) Dia. Spotface Places 7(6.8) 6(.96) (.9) "K" Thd. (From Rear) 6.(.) Dia. B C 6(.63) 7(.67).9(.7) 9 (.7) 6.(.7).(.69) 8.(.6) 73.(.88) 8.(.).6 (.6) P X A Y V 33(.3) (8.3) (9.8) "P" Dia. "J " Thd. (From Rear) T 9(.) Dia. 7(.67) Dia. (.39) Deep Places 3.7(.).7(.).3(.63) F "" Thd. (From Rear) 6.(.) Dia. "K" Thd. (From Rear) E 8.7(3.37) 7(.) 33.(.) D EFBGM-6X- EFBGM-6Y- EFBGM-6X-8 EFBGM-6Y-8 EFBGM-6X-9 EFBGM-6Y-9.3 (.8) EFBGM-6X EFBGM-6Y B 3.3 (.7) 9 (3.7) Dimensions mm (in.) C D E 63.3 (.9) 3.3 (.) (.77) 6 (.36) Thread Size "" Thd. "J " Thd. "K" Thd. "L" Thd. Rc Rc -/ BSP.F -/ BSP.F NPT -/ NPT Rc 3/8 3/8 BSP.F 3/8 NPT Rc / / BSP.F / NPT M6 M6 /8- UNC 3 (.38) (.7) F 3 (.3) 39 (.) mm (in.) N P 3 (.8) (.) 3 (.8) 3 (.38). (.6) (.) E Ω-Ω Flow Control and Relief Valves Ω-Ω Flow Control and Relief Valves 77

EFBGM-Y-/8/9 DIMENSIONS IN MILLIMETRES (INCES) "D" Thd. "F" Deep Places.(.8) Dia. Through 3(.6) Dia. Spotface Places 3.(.93).6(.6) (9.6) 98.(7.8) 96.9(7.7) 6(6.38) 98.(3.88) (.79) Dia. (.9) Deep Places 8(3.) (.97) "E" Thd. "F" Deep Places 8(.89) Dia. (.9) "C" Thd. (9.8) 36. (.) 77.8(7.).(.69) 9(.69) (.3).(.9) 7.(.69) 3 (.38) 3 (.9) (8.8) 9(.93) 73 (.87) 73 (.87) T P 73(.87).9(.6) Y V 7.(.3) A X 9 (.) 7 (.9) 9 (.69). (.69) 77.8 (7.) 6.(.) Dia. (.98) 3.(.7) 8(.8) 33(3.) "" Dia. 6.(.) Dia. 3.(.7) Dia. "B" Thd. 73 73 (.87) (.87) 7 (.83) (8.3) "C" Thd. EFBGM-Y- EFBGM-Y-8 EFBGM-Y-9 Thread Size "B" Thd. "C" Thd. "D" Thd. "E" Thd. Rc 3/8 Rc / 3/8 BSP.F / BSP.F 3/8 NPT / NPT M M6 3/- UNC /8- UNC mm (in.) F (.) 3(.6).(.6) 3(.3) (.) 78 Ω-Ω Flow Control and Relief Valves

SERIES Step Response These characteristics have been obtained by measuring on each valve. Therefore, they may vary according to a hydraulic circuit to be used. Flow Controls EFBG-3 U.S.GPM L /min 3 3 7.s Step Signal U.S.GPM L /min 3 7 6 3 EFBG-6.s Step Signal U.S.GPM 7 Viscosity: 3 mm /s ( SSU) L /min 6 3 EFBG-.s Step Signal Pressure Pressure Controls EFBG-3 3 Time EFBG-3-- 3 EFBG-3--C.s Step Signal Time : L /min (33 U.S.GPM) Trapped Oil Volume : < L (.6 U.S.Gallons) Pressure 3 EFBG-6 Time EFBG-6-- 3 EFBG-6--C.s Step Signal Time : L /min (66 U.S.GPM) Trapped Oil Volume : < L (.6 U.S.Gallons) Pressure 3 EFBG- Time EFBG--- 3 EFBG---C.s Step Signal Time : L /min (3 U.S.GPM) Trapped Oil Volume : < L (.6 U.S.Gallons) Input Current vs. Flow EFBG-3 U.S.GPM L /min 3. 3 Viscosity: 3 mm /s ( SSU) EFBG-6 U.S.GPM L /min 6 6 U.S.GPM L /min EFBG- Pressure 7 6 8 Input Current ma Input Current vs. Pressure EFBG-3 3 3 EFBG-3-- Pressure 3 6 8 Input Current ma Viscosity: 3 mm /s ( SSU) 3 3 EFBG-6 7 3 EFBG-6-- 3 Pressure 3 6 8 Input Current ma EFBG- EFBG--- E Ω-Ω Flow Control and Relief Valves EFBG-3--C 6 8 Input Current ma EFBG-6--C 6 8 Input Current ma EFBG---C 6 8 Input Current ma Ω-Ω Flow Control and Relief Valves 79

List of Seals and Solenoid Ass'y EFBG-3-- - -6/69 EFBG-6-- - -6/69 3 3 3 9 33 9 6 7 8 8 3 39 6 7 3 3 36 38 3 9 8 9 3 6 9 6 6 X X 3 6 6 8 7 3 3 37 3 7 Section X-X List of Seals Item 36 37 38 39 3 6 7 Name of Parts EFBG-3 Part Numbers SO-NA-A6 SO-NA-P6 SO-NB-P8 SO-NB-P3 SO-NB-P8 SO-NB-P8 SO-NB-G3 SO-NB-P8 SO-NB-P SO-NB-P SO-NB-P9 SO-NB-A6 Qty. 3 EFBG-6 Part Numbers SO-NA-P6 SO-NA-P6 SO-NB-P SO-NB-P SO-NB-P36 SO-NB-P3 SO-NB-P3 SO-NB-P8 SO-NB-P SO-NB-P SO-NB-P SO-NB-A6 Qty. 3 Note: When ordering seals, please specify the seal kit number from the table right. In addition to the above o-rings, seals for solenoid ass'y are included in the seal kit. For the details of seals for solenoid ass'y 33 and 3 see page 67. List of Seal Kits Valve EFBG-3--6 EFBG-3--C/-6 EFBG-6--6 EFBG-6--C/-6 Seal Kit Numbers KS-EFBG-3-6 KS-EFBG-3-C-6 KS-EFBG-6-6 KS-EFBG-6-C-6 Solenoid Ass'y Valve 33 Solenoid Ass'y 3 Solenoid Ass'y EFBG-3--C/(-E)-6/69 EFBG-6--C/(-E)-6/69 EFBG-3-(-E)-6/69 EFBG-6-(-E)-6/69 E38-Y6M--6 E38-Y6M-8-6 Note: The connector assembly GDM--B- (Item 3) is not included in the solenoid assembly. 73 Ω-Ω Flow Control and Relief Valves

SERIES List of Seals, Pilot Valves, Solenoid Ass'y and Safety Valve EFBG--- - -/9 37 3 3 6 8 Z Z W W 33 3 3 8 36 7 3 3 3 9 33 33 9 36 3 7 7 8 7 8 36 9 3 7 6 36 8 3 9 6 Section W-W Only for Models without Pilot Relief Valve Section Z-Z List of Seals Item Name of Parts Part Numbers 9 3 3 3 33 3 3 36 3 SO-NA-P3 SO-NB-G6 SO-NB-G SO-NB-P SO-NB-P8 SO-NB-P SO-NB-P36 SO-NB-P SO-NB-P SO-NB-A3 SO-NA-P6 Models with Pilot Relief Valve 3 8 Qty. Models without Pilot Relief Valve 3 8 List of Seal Kits Valve EFBG--- EFBG---C/- Note: When ordering seals, please specify the seal kit number from the table right. In addition to the above o-rings, seals for pilot valve and solenoid ass'y are included in the seal kit. For the detail of the pilot valve and solenoid ass'y seals, see page 67. Seal Kit Numbers KS-EFBG-- KS-EFBG--C- E Ω-Ω Flow Control and Relief Valves Pilot Valve, Solenoid Ass'y and Safety Valve Valve Pilot Valve 7 Solenoid Ass'y Model No. 6 Safety Valve Model No. EFBG---C(-E)-/9 EDG-V-C--PNT-3 EFBG---(-E)-/9 EDG-V---PNT-3 E38-Y6M-8-6 EFBG--(-E)-/9 SB9- Note: The connector assembly GDM--B- (Item 8) is not included in the solenoid assembly. Ω-Ω Flow Control and Relief Valves 73

Interchangeability between Current and New Design Model changes have been made from, to 6 design in the EFBG-3/6 because of changes in the pilot valve building-in method and model changes have been made from to design in the EFBG- because of improvement in Solenoid Ass'y. Specification and Characteristics No changes in specifications and characteristics between current and new design Interchangeability in Installation EFBG-3/6 Design 6 Design The mounting surface are interchangeable. owever, the method of building in the pilot valve has been changed, bringing about changes in the appearance shapes and dimensions as shown below. Manual Pressure Adj. Screw Current : Design Fully Extended A Manual Flow Adj. Screw See EDG- (page 67) for the details of the solenoid ass'y Pilot Valve EDG-, Design Front Side : Manual Flow Adj. Screw Rear Side : Manual Pressure Adj. Screw New : Design 6 A 6 Places See EDG- (page 67) for the details of the solenoid ass'y Pressure Adj. Screw for Saftey Valve C D D B Pressure Adj. Screw for Saftey Valve B A B C D (Current) EFBG-3-- - (New) - /9 /9 EFBG-3-- - -6/69 (Current) EFBG-6-- - (New) - /9 /9 EFBG-6-- - -6/69 7 (8.) 3 (.) 7 (8.) 8 (7.9) 93. (3.67) 8.7 (.7) 3.3 (.) (6.) 96 (7.7) 36. (9.3) 8. (9.78) 77. (.93) 89. (.) 6 Design 6 Design The mounting surface are interchangeable. There are no changes in the appearance shapes and dimensions. EFBG- Mounting compatibility is provided. Note that because of improvements made on the solenoids, the overall shapes have been changed as shown below. Current : Design New : Design Manual Pressure Adj. Screw Manual Flow Adj. Screw Manual Pressure Adj. Screw Manual Flow Adj. Screw 3. (.7) 3. (.66) X A X A DIMENSIONS IN MILLIMETRES (INCES) 73 Ω-Ω Flow Control and Relief Valves

SERIES igh Flow Proportional Electro-ydraulic Flow Control and Relief Valves This flow control and relief valve is an energy-saving valve that supplies the minimum pressure and flow necessary for actuator drive. For the igh Flow, double maximum flow rate [3 size: L/min (33.3 66. U.S.GPM), 6 size: L/min (66. 3. U.S.GPM), size: L/min (3. 6. U.S.GPM)] enables a smaller valve size than conventional products; compact-sized devices can be provided. Specifications Description Model No. EFBG-3 -- - - EFBG-6 -- - - EFBG- -- - - Max. Operating Pressure (). (3). (3). (3) Max. Flow L/min (U.S.GPM) (66) (3) (6) Metred Flow Adjustment Range L/min (U.S.GPM) Min. Pilot Pressure () Pilot Flow L/min (U.S.GPM) Flow Controls Rated Currnt Coil Resistance Differential Pressure C:.6-.7 C:.-.7 C:.-.7 (3-7) (-7) (6-7) Pres. Adj. Range () :.8-. :.-. :.-. (6-3) (-3) (6-3) Rated Current C : 8 ma C : 8 ma C : 9 ma : 87 ma : 9 ma : 9 ma Coil Resistance ysteresis 3% or less 3% or less 3% or less Repeatability % or less % or less % or less Approx. Mass kg (lbs.) Refer to page 73 to 737 Pressure Controls ysteresis Repeatability at Normal at Transition ().- (.66-66). () (.6) (.6) 83 ma.8 () 3% or less % or less - (.3-3). () (.6) 6 (.9) 78 ma.9 (3) 3% or less % or less. The specifications for pressure controls are applied to models with proportional pilot relief valve. (Ex. EFBG-3--C- -). The maximum pressure adjustment range of the valves without proportional pilot relief valves is. (3 ). - (.6-6). (). (.9). (.6) 83 ma. (7) 3% or less % or less Graphic Symbols With Proportional Pilot Relief Valve External Pilot X O M Internal Pilot Without Proportional Pilot Relief Valve External Pilot X V O M A P Internal Pilot A Y T Y E igh Flow Flow Control and Relief Valves O M V O M T P igh Flow Flow Control and Relief Valves 733

Model Number Designation F- Special Seals F: Special Seals for Phosphate Ester Type Fluid (Omit if not required) EFB Number EFB: Proportional Electro- ydraulic Flow Control and Relief Valve G Type of Mounting G: Mounting -3 Valve Size 3 - Max. Metred Flow L/min (U.S.GPM) : ( 66) 6 : ( 3) : ( 6) Design Standards: None... Japanese Standard "JIS" and European Design Standard 9... N. American Design Standard -C Proportional Pilot Relief Valve Pressure Adj. Range C, : See Specifications None: Without Proportional Pilot Relief Valve -E Pilot Connection None: Internal Pilot E: External Pilot - Design Number Design Standards Refer to Attachment Mounting Bolts Valve Model Socket ead Cap Screw Numbers Japanese Std. "JIS" and European Design Std. N. American Design Std. Qty. EFBG-3 M Lg. /-3 UNC -3/ Lg. EFBG-6 M6 Lg. /8- UNC -3/ Lg. EFBG- M Lg. 3/- UNC 6 Lg. Applicable Power Amplifiers For stable performance, it is recommended that Yuken's applicable power amplifiers be used (for details see page 767, 77). EFBG-3-(-E)-/9 EFBG-6-(-E)-/9 EFBG--(-E)-/9 EFBG-3--C/(-E)-/9 EFBG-6--C/(-E)-/9 EFBG---C/(-E)-/9 Power Amplifier For Flow Control For Pres. Control AME-D-- - AMN-D- (For DC power supply) AME-D-- Instructions Drain Back Pressure Check that the drain back pressure dose not exceed. (9 ). When Relief Valve Passing is Low in Pressure Control State To avoid preselected pressure instability, use a passing flow rate of L/min (. U.S.GPM) or higher. Further, check that the tank-line back pressure dose not exceed. (7 ). Safety Valve Pressure Setting The pressure of the safety valve is preset at the value equal to the upper limit of the pressure adjustment range plus (9 ). Please adjust the pressure of the valve so preset to meet the pressure to be used actually. To lower the pressure setting, turn the safety valve pressure adjustment screw anti-clockwise. After adjustment, be sure to tighten the lock nut. Interchangeability in installation with conventional valves ( - ) EFBG-3 There is no interchangeability in installation. EFBG-6/ A product in the high-flow series can be mounted on the conventional mounting surface but no conventional product can be mounted on the mounting surface of the high-flow series. 73 igh Flow Flow Control and Relief Valves

SERIES EFBG-3-- C (-E)-/9, EFBG-3- (-E)-/9 3 (.). (.6).6 (.) 6. (.3).8 (.8) 3 (6.).6 (.) 6.8 (.6) 3.(.3) Dia. Through (.83) Dia. Spotface Places.7 (.6) 3.3 (.7) 39. (.9) Vent Port "V" Outlet Port "A" X A P V Y Drain Port "Y" T Tank Port "T".7 (.6) Manual Flow Adj.Screw 3(.) ex. Soc. Cable Departure (For Flow Control) Cable Applicable: Outside Dia.... 8- mm (.3 -.39 in.) Conductor Area... Not Exceeding. mm (.3 sq. in.) Lock Nut (.39) ex. 7. (.8) 36. (9.3) 8.8 (3.38) (.9) 3(.) ex. Soc. Manual Pressure Adj.Screw 3(.) ex. Soc. 3(.) ex. Soc. Pressure Adj. Srerw for Safety Valve 3(.) ex Soc. INC.. (.) 93. (.6) INC. Pilot Pressure Port "X" View Arrow Z Inlet Port "P" Cable Departure (For Pressure Control) Cable Applicable: Outside Dia..... 8- mm (.3 -.39 in.) Conductor Area... Not Exceeding. mm (.3 sq. in.) Models with proportional pilot relief valve (EFBG-3--C/ ) only. Approx. Mass... 9 kg (.9 lbs.) (3.9) 6 (.) 99 (3.9) Two Locating Pins 6(.) Dia. Dimensions of valve mounting surface Prepare a mounting surface as shown to the right. Also finish it finely. EFBG-3-- - - EFBG-3-- - -9 Z "B" Thd. M /-3 UNC Mounting Surface (s Furnished) 3 (.). (.6).(.3).6(.) 76.8(3.).8(.).8 (.98).8 (.3) P X A Y T V DIMENSIONS IN MILLIMETRES (INCES).7 (.) 6(.) Dia. (Max.) ("P", "A" & "T" Port) 6.(.) Dia. (Max.) ("V", "X" & "Y" Port) 7(.8) Dia. 7(.8) Deep Places (For Locating Pin) 8.6 (.3) (.77) 9(.3) 87.9(3.6) 9.3(3.7).6(.) E igh Flow Flow Control and Relief Valves.7 (.6) (.9) "B" Thd. (.9) Deep Places igh Flow Flow Control and Relief Valves 73

Models with Proportional Pilot Relief Valve C EFBG-6-- (-E)-/9 Manual Flow Adj.Screw 3(.) ex. Soc. INC. 7.(.69) Dia. Through 6(.) Dia. Spotface Places 6.3 (.) 7 (.67) 8 (7.9) 6. (.7) Pressure Adj. Screw for Safety Valve 3(.) ex. Soc. INC. Inlet Port "P" Models without Proportional Pilot Relief Valve EFBG-6-(-E)-/9 8 (7.9) 33. (.) Pilot Pressure Port "X" (Rear Side) (.) 3(.) ex. Soc. Outlet Port "A" Cable Departure (For Flow Control) Cable Applicable: Outside Dia.... 8- mm (.3 -.39 in.) Conductor Area... Not Exceeding. mm (.3 sq. in.) 33 (.3) (.37) Vent Port "V".3 (.96).8 (8.) Tank Port "T" Drain Port "Y" Cable Departure (For Pressure Control) Cable Applicable: Outside Dia.... 8- mm (.3 -.39 in.) Conductor Area... Not Exceeding. mm (.3 sq. in.) 3(.) ex. Soc. Pressure Adj. Screw for Safety Valve 3(.) ex. Soc. Lock Nut (.39) ex. INC. For other dimensions, please refer to the models with Proportional Pilot Relief Valve. 3. (.6) 73.3 (.76) 88. (.36) Manual Pressure Adj.Screw 3(.) ex. Soc. Sling Fitting Places INC. Approx. Mass... 33 kg (7.8 lbs.) 96 (3.78) 9 (3.7) 8 (.3) Two Locating Pins 6(.63) Dia. Dimensions of valve mounting surface Prepare a mounting surface as shown to the right. Also finish it finely. EFBG-6-- - - EFBG-6-- - -9 "B" Thd. M6 /8- UNC Mounting Surface (s Furnished) Approx. Mass... C mm (in.) 3 (.8) 3 (.38) 8 (7.9) 7(.8) Dia. (Max.) 6. (.7). (.69) (.3) 73. (.88) 3 (.).6 (.6) 6.3 (.) 7 (.67) X P A Y.9 (.7) V 8 (7.9) 3 kg (77. lbs.) T 3(.38) Dia. (Max.) ("P", "A" & "T" Port) 7. (.3).3 (.63) "B" Thd. "C" Deep Places 8.7 (3.37) (.33) 33. (.) 7(.67) Dia. (.39) Deep Places (For Locating Pin) (.) Dia. (Max.) DIMENSIONS IN MILLIMETRES (INCES) 736 igh Flow Flow Control and Relief Valves

SERIES Models with Proportional Pilot Relief Valve C EFBG--- (-E)-/9 Manual Flow Adj.Screw 3(.) ex. Soc. INC. (.93) Inlet Port "P" Sling Fitting Places Pressure Adj. Screw for Safety Valve 3(.) ex. Soc. Lock Nut (.39) ex. INC..(.8) Dia. Through 3(.6) Dia. Spotface Places Models without Proportional Pilot Relief Valve EFBG--(-E)-/9 3(.) ex. Soc. Pilot Pressure Port "X" (.) Pressure Adj. Screw for Safety Valve 3(.) ex. Soc. INC. Cable Departure (For Flow Control) Cable Applicable: Outside Dia.... 8- mm (.3 -.39 in.) Conductor Area... Not Exceeding. mm (.3 sq. in.) (.7) Outlet Port "A" Tank Port "T" Drain Port "Y" Vent Port "V" For other dimensions, please refer to the models with Proportional Pilot Relief Valve. Approx. Mass... 7 kg (63. lbs.) Lock Nut (.39) ex. Cable Departure (For Pressure Control) Cable Applicable: Outside Dia.... 8- mm (.3 -.39 in.) Conductor Area... Not Exceeding. mm (.3 sq. in.) 3(.) ex. Soc. Manual Pressure Adj.Screw 3(.) ex. Soc. INC. Dimensions of valve mounting surface Prepare a mounting surface as shown to the right. Also finish it finely. EFBG--- - - Mounting Surface (s Furnished) "B" Thd. M EFBG--- - -9 3/- UNC C mm (in.) 3 (.6) 3 (.38) Two Locating Pins 8(.7) Dia. Approx. Mass... 76 kg (67.6 lbs.) "B" Thd. "C" Deep Places 3(9.3).6 (.6) 3 (.) 98.(7.8) 96.9(7.7) 9.7(6.9) 98.(3.88) 37.3 (.7) X A P V Y T DIMENSIONS IN MILLIMETRES (INCES) (.97) Dia. (Max.) ("P", "A" & "T" Port) (.79) Dia. (.9) Deep Places (For Locating Pin).3 (.6). (.9) (.3) 9(.69) 6.8(.78) 77.8(7.) E igh Flow Flow Control and Relief Valves 3. 7(.8) Dia. (Max.) (.93) (9.6) 7(.8) Dia. (Max.) (.) Dia. (Max.) igh Flow Flow Control and Relief Valves 737

Step Response These characteristics have been obtained by measuring on each valve. Therefore, they may vary according to a hydraulic circuit to be used. Viscosity: 3mm /s ( SSU) Flow Controls U.S.GPM L /min EFBG-3- U.S.GPM L /min EFBG-6- U.S.GPM L /min EFBG-- 9 6 7 Pressure 8 3 6 3 Step Signal Step Signal Step Signal Time Time Time Pressure Controls 8 3 6 8 EFBG-3-- Pressure 8 EFBG-6-- 3 6 8 Step Signal Step Signal Step Signal Pressure EFBG-- 3 8 6 8 Time Time Time Input Current vs. Flow Viscosity: 3mm /s ( SSU) U.S.GPM L /min 6 EFBG-3- U.S.GPM L /min EFBG-6- U.S.GPM L /min 8 EFBG-- 3 8 6 3 6 8 6 6 8 9 6 8 6 8 9 Input Current ma Input Current ma Input Current ma Input Current vs. Pressure Viscosity: 3mm /s ( SSU) 3 3 EFBG-3- EFBG-3-- 3 3 EFBG-6- EFBG-6-- 3 3 EFBG-- EFBG--- Pressure EFBG-3--C EFBG-6--C EFBG---C 6 8 9 6 8 9 6 8 Input Current ma Input Current ma Input Current ma Pressure Pressure 738 igh Flow Flow Control and Relief Valves

SERIES List of Seals, Solenoid Ass'y and Safety Valve EFBG-3-- - -/9 3 3 Y X Z 3 Y 7 8 6 9 3 Detail of Safety Valve (Item 3) 3 6 6 9 6 6 63 X Z Item 33 3 3 36 37 38 39 3 8 3 6 3 6 3 9 List of Seals Name of Parts 38 W W Part Numbers SO-NB-P SO-NB-P3 SO-NB-P3 SO-NB-P8 SO-NB-P SO-NB-P SO-NB-P SO-NB-P SO-NB-P SO-NB-P9 SO-NB-G3 SO-NB-A3 SO-NA-P6 Qty. 6 3 7 6 7 37 3 39 36 33 6 O-rings, item 37 and 39, are used only with the proportional pilot relief valve (EFBG-3--C/). Note: When ordering seals, please specify the seal lit number from the table right. In addition to the above o-rings, seals for solenoid ass'y are included in the seal kit. For the detail of seals for solenoid ass'y seals, see page 67. Solenoid Ass'y and Safety Valve Valve 9 Solenoid Ass'y Model No. EFBG-3--C/(-E)-/9 E38-Y6M--6 EFBG-3-(-E)-/9 3 7 9 8 7 9 8 Section W-W List of Seal Kits Valve EFBG-3-- EFBG-3--C/- Seal Kit Numbers KS-EFBG-3-- KS-EFBG-3--C- 3 Solenoid Ass'y Model No. 3 Safety Valve Model No. E38-Y6M-8-6 Section X-X 8 Section Y-Y 3 Section Z-Z SB9- E igh Flow Flow Control and Relief Valves Note: The connector assembly GDM--B- (Item 3) is not included in the solenoid assembly. igh Flow Flow Control and Relief Valves 739

List of Seals, Pilot Valves, Solenoid Ass'y and Safety Valve EFBG-6-- - -/9 Detail of Safety Valve (Item ) U Models Without Pilot Relief Valve : EFBG-6-(-E) 8 Q 6 3 38 W S 3 3 Y Y 3 S Y 8 39 6 3 7 9 33 6 9 3 6 9 8 Z Z 7 9 3 3 3 8 6 List of Seals Item Name of Parts Part Numbers Qty. 6 7 8 9 3 3 3 33 3 3 36 37 W Q U SO-NB-P6 SO-NB-P SO-NB-P SO-NB-P36 SO-NB-P3 SO-NB-P SO-NB-P SO-NB-P9 SO-NB-G SO-NB-G3 SO-NB-AO3 SO-NA-P6 O-rings, item 3, 36 and 37, are used only without the proportional pilot relief valve [(EFBG-6-(-E)]. Note: When ordering seals, please specify the seal lit number from the table right. In addition to the above o-rings, seals for pilot valve and solenoid ass'y are included in the seal kit. For the detail of the pilot valve and solenoid ass'y seals, see page 67. Pilot Valve, Solenoid Ass'y and Sefety Valve Valve Pilot Valve 3 EFBG-6--C(-E)-/9 EDG-V-C--PNT-3 EFBG-6--(-E)-/9 EDG-V---PNT-3 EFBG-6-(-E)-/9 3 37 3 36 Section S-S 8 7 33 3 7 33 3 Section U-U Valve EFBG-6-- EFBG-6--C/- Solenoid Ass'y Model No. E38-Y6M-8-6 Note: The connector assembly GDM--B- (Item ) is not included in the solenoid assembly. Section W-W List of Seal Kits Section Q-Q Section Z-Z Seal Kit Numbers KS-EFBG-6-- KS-EFBG-6--C- Safety Valve Model No. SB9-7 igh Flow Flow Control and Relief Valves

SERIES List of Seals, Pilot Valves, Solenoid Ass'y and Safety Valve EFBG--- - -/9 36 37 39 6 Z Z X X Y 38 3 8 9 8 33 Detail of Safety Valve (Item 3) Models Without Pilot Relief Valve : EFBG--(-E) 3 6 7 7 9 8 6 7 7 9 A 6 3 3 3 9 3 6 7 8 Section X-X Section Z-Z 8 8 Section Y-Y Detail A 3 3 3 3 List of Seals Item Name of Parts Part Numbers Qty. 3 6 8 9 6 JIS-B -B-P JIS-B -B-P JIS-B -B-G JIS-B -B-G JIS-B -B-G JIS-B -B-G6 JIS-B -B-P AS68-3(NBR, s9) JIS-B -A-P6 O-rings, item 8, 9 and 6, are used only without the proportional pilot relief valve [EFBG--(-E)]. Note: When ordering seals, please specify the seal lit number from the table right. In addition to the above o-rings, seals for pilot valve and solenoid ass'y are included in the seal kit. For the detail of the pilot valve and solenoid ass'y seals, see page 67. 8 3 List of Seal Kits Valve EFBG--- EFBG---C/- Seal Kit Numbers KS-EFBG--- KS-EFBG---C- E igh Flow Flow Control and Relief Valves Pilot Valve, Solenoid Ass'y and Safety Valve Valve Pilot Valve EFBG---C(-E)-/9 EDG-V-C--PNT-97 EFBG---(-E)-/9 EDG-V---PNT-97 EFBG--(-E)-/9 Solenoid Ass'y Model No. E38-Y6M-8-6 3 Safety Valve Model No. SB9- Note: The connector assembly GDM--B- (Item ) is not included in the solenoid assembly. igh Flow Flow Control and Relief Valves 7

Interchangeability between Current and New Design EFBG-3/6/ series valves have changed model from to design in line with the model change of solenoid ass'y. Specifications and Characteristics No changes in specifications and characteristics between current and new design. Mounting Interchangeability There is an interchangeability in the mounting dimensions between current and new design, however, note that because of improvements made on the solenoids, the overall shapes have been changed as shown below. EFBG-3 Current : Design Manual Pressure Adj. Screw Manual Flow Adj. Screw New : Design Manual Pressure Adj. Screw Manual Flow Adj. Screw EFBG-6/ Current : Design New : Design Manual Flow Adj. Screw Pressure Adj. Screw for Safety Valve Manual Flow Adj. Screw Pressure Adj. Screw for Safety Valve Manual Pressure Adj. Screw Manual Pressure Adj. Screw 7 igh Flow Flow Control and Relief Valves

SERIES Shockless Type Proportional Electro-ydraulic Directional and Flow Control Valves These valves are well accepted by industrial users as shifting time adjustable type shockless valves. By employing the basic design concept of the G series solenoid operated directional valves, we have been successful developing the shifting time adjustable shockless valves with high performance which makes the speed setting possible at any high speed operation. In combination with the newly developed digital amplifiers, the further enhancement of maneuverability and repeatability of the valves can be realized. Specifications Model No. Description EDFG- Max. Operating Pressure () (363) Max. Flow L/min (U.S.GPM) 3 (7.9) Max. Tank Line Back Pressure () (3) Rated Current ma Coil Resistance.8 ysteresis % or less Repeatability % or less Step Response (Typical Rating) ( %) ms or less Frequency Response Phase z ( 9 degree) (% ±%) Gain z ( 3 db) Approx. Mass kg (lbs.). (.3) Model Number Designation F- Special Seals F: Special Seals for Phosphate Ester Type Fluid (Omit if not required) EDF Number EDF: Shockless Type Proportional Directional and Flow Control Valve G Type of Mounting G: Mounting Valve Size Rated Flow L/min (U.S.GPM) 3 (7.9) Design Standards: None... Japanese Standard "JIS" and European Design Standard 9... N. American Design Standard Attachment Mounting Bolts Descriptions Soc. d. Cap Screw Qty. Japanese Standard "JIS" European Design Standard M Lg. N. American Design Standard No. - UNC -3/ Lg. Piping Size /8 / 3/8 Japanese Standard "JIS" DSGM--3 DSGM-X-3 DSGM-Y-3 Thread Size Rc /8 Rc / Rc 3/8 European Design Standard DSGM--38 DSGM-X-38 SOL.a A B P T 3C -3C -XY Spool Type Direction of Flow XY: Metre - In Metre - Out Graphic Symbols SOL.b - -3-3C Design Number SOL.a A B Design Standards Refer to Applicable Power Amplifier For stable performance, it is recommended that Yuken's applicable power amplifiers be used (for details see page 78). : AMN-G/W- Thread Size /8 BSP.F / BSP.F 3C N. American Design Standard Thread Size DSGM--39 /8 NPT DSGM-X-39 / NPT DSGM-Y-39 3/8 NPT PT 3C SOL.b Approx. Mass kg (lbs.).8 (.8).8 (.8).8 (.8) E Shockless Type Directional and Flow Control Valves s are available. Specify the sub-plate model number from the table above. When sub-plates are not used, the mounting surface should have a good machined finish. s are those for /8 solenoid operated directional valves. For dimensoins, see page 36. Shockless Type Directional and Flow Control Valves 73

EDFG--3-3C -XY-/9 Mounting Surface ISO -AB-3--A.(.) Dia. Through 9.(.37) C Bore Places. (.9) Pressure Port "P" Cylinder Port "A" 3(.).7 3. (.3) (.8) DIMENSIONS IN MILLIMETRES (INCES) The direction can be altered to every 9 degree angles. Tank Port "T" Cylinder Port "B" 3: Earth Terminal,: Power supply Terminal 8 (.) 8. (3.3) 39. (.) 3(.) ex.soc. (Both Ends) 9. (.7) 39 (.) Cable Departure Cable Applicable: Outside Dia... 8 mm(.3.39in.) Conductor Area... Not Exceeding.mm (.3 sq.in.) 8 (.89) Manual Adjustment Screw 7. 3(.) ex. Soc. (.8) (Both Ends) INC. 8 (.8) 9 (3.7) T 38 (.) (.98) Mounting Surface (s furnished) 6 (.6) (.3) Under normal conditions, however, this screw must be kept in its original position. Input Current vs. Flow Valve pressure Difference vs. Flow U.S.GPM L/min. 7. 3.. AB P T Valve Pressure Difference: 7 ( ) Viscosity: 3 mm /s ( SSU) AB PT Input Current ma U.S.GPM L/min. 7... 3 ma 8mA 6mA ma AB P T AB PT 3 3 Valve Pres. Diff. P 7 Shockless Type Directional and Flow Control Valves

SERIES List of Seals and Solenoid Ass'y EDFG--3- -XY-/9 9 9 3 8 7 8 3 6 6 7 List of Seals Item Name of Parts Part Numbers Qty. 7 8 9 Fastner Seal SO-NB-P9 SO-NB-P SO-NB-P7 SG-FCF- SO-NB-P8 6 Remarks Included in Seal Kit Kit No.: KS-EDFG-- Note) O-ring (Item 7, 8, ) and the fastner sael (Item 9) are included in the solenoid assembly. Solenoid Ass'y Valve EDFG--3- -XY-/9 Solenoid Ass'y Qty. E38-YM-8-63 Note) The connector assembley GDM-- - (Item, 3) is not included in the solenoid assembly. E Shockless Type Directional and Flow Control Valves Shockless Type Directional and Flow Control Valves 7

Proportional Electro-ydraulic Directional and Flow Control Valves These valves are double-deck directional and flow control valves employing as their pilot the electro-hydraulic proportional pressure reducing valves with two proportional solenoids. The flow rate can be controlled by changing an input current to the solenoids and the direction of the flow can be controlled by providing the current to either solenoid of the two. By combining the valves with the power amplifiers specially designed for the valves, the speed control, acceleration, deceleration and directional control can be done with a single valve, which eventually makes the hydraulic circuits simple and contributes the cost of the hydraulic systems. Specifications Description Model No. Max. Operating Pressure () Rated Flow L/min (U.S.GPM) at Valve Pressure Difference:. ( ) Pilot Pressure () Pilot Flow L/min (U.S.GPM) at Normal at Transition Max. Tank Line Back Pressure () Max. Drain Line Back Pressure () Rated Current Coil Resistance ysteresis Repeatability Approx. Mass kg (lbs.) EDFG-3 (6.) (.6) 3 (.79) 6 (3) EDFG- EDFG-6 (363) (37.) 8 (7.). - 6 ( - 3) (.6) (.6) (3) 3. (3) 8 ma 98 ma 9 ma % or less % or less 3 3 (.3) (6.) (33.). Take care to keep the difference between the pilot pressure and drain port back pressure consistently greater than. ( ).. To obtain stable performance, keep the drain port back pressure low and minimize its fluctuations. 3. The hysteresis and repeatability values indicated in the specifications for each control valve are determined under the following conditions: ysteresis Value: Obtained when Yuken's applicable power amplifier is used. Repeatability Value: Obtained when Yuken's applicable power amplifier is used under the same conditions. (.6) 6 (.9) (3) Graphic Symbols External Pilot Type Internal Pilot Type A B A B a b a b P T P T Y Y X Model Number Designation F- Special Seals F: Special Seals for Phosphate Ester Type Fluids (Omit if not required) EDF Number EDF : Proportional Electro- ydraulic Directional and Flow Control Valves G Type of Mounting G: Sub-Plate Mounting -3 Valve Size - Rated Flow L/min (U.S.GPM). Spool type shown in the column is for the centre position.. Design Standards: None... Japanese Standard "JIS" and European Design Standard 9... N. American Design Standard Attachment Mounting Bolts Model Numbers EDFG-3 EDFG- EDFG-6 Japanese Standard "JIS" European Design Standard M6 3 Lg. M6 Lg. M Lg. M 6 Lg. 3 : (6.) : (37.) 6 8: 8 (7.) Socket ead Cap Screw 3C -3C Spool Type N. American Design Standard Qty. /- UNC -/ Lg. /- UNC -3/ Lg. 3/8-6 UNC Lg. /-3 UNC -/ Lg. 6 3C -XY Direction of Flow XY : Metre-in Metre-out Tightening Torque Nm (in. lbs.) - (6-33) - (6-33) 8-7 (3-637) - 3 (88-89) -E Pilot Connection E: External Pilot None: Internal Pilot -3 Design Number 3 3 3 Design Standards Refer to 76 Directional and Flow Control Valves

SERIES s Valve Model Numbers EDFG-3 EDFG- EDFG-6 Japanese Standard "JIS" DGM-3Y- DGM-- DGM-X- DGM-6- DGM-6X- Thread Size Rc 3/ Rc / Rc 3/ Rc 3/ Rc Approx. Mass kg (lbs.).7 (.). (9.7). (9.) 7. (6.3) 7. (6.3) European Design Standard Approx. Thread Mass Size kg (lbs.) DGM-3Y-8 3/ BSP.F.7 (.) DGM--8 DGM-X-8 DGM-6-8 DGM-6X-8 / BSP.F 3/ BSP.F 3/ BSP.F BSP.F. (9.7). (9.) 8. (8.7) 8. (8.7) N. American Design Standard Approx. Thread Mass Size kg (lbs.) DGM-3Y-9 3/ NPT.7 (.) DGM--9 DGM-X-9 DGM-6-9 DGM-6X-9 / NPT 3/ NPT 3/ NPT NPT. (9.7). (9.) 7. (6.3) 7. (6.3) s are available. Specify the sub-plate model number from the table above. When sub-plates are not used, the mounting surface should have a good machined finish. s are those for solenoid controlled pilot operated directional valves. For dimensions, see page and. Applicable Power Amplifiers For stable performance, it is recommended that Yuken's applicable power amplifiers be used (for details see page 78). : SK9-D- Instructions Manual Adjustment In the event of an electric fault or emergency, a manual shift can be made by screwing in the manual adjustment screw. Take care, however, that this manual shift has no flows adjusting function. For this operation, set the pilot pressure (or P-port pressure on an internal-pilot model) below 7 ( ). After operation, be sure to return the manual adjustment screw completely to the original position. E Directional and Flow Control Valves Directional and Flow Control Valves 77

EDFG-3--3C -XY- -3/39 Main port... Conform to ISO -AC---A. Mounting Surface: Pilot/drain ports... Conform to ISO. Of the two tank ports "T", the tank port in the left side is normally used in our standard sub-plate, though, either side of the tank port "T" can be used without problem. Note: For valve mounting surface dimensions, see the dimensional drawings of sub-plates (p.) in common use. Connector The direction can be altered to every 9 degree angles. Cable Departure 7. (.8) 8 (.89) 7. (.6) (.33) Connector The direction can be altered to every 9 degree angles. 79. (7.7) DIMENSIONS IN MILLIMETRES (INCES) Cable Applicable: Outside Dia.... 8- mm (.3 -.39 in.) Conductor Area... Not Exceeding. mm (.3 sq. in.) 3(.) ex. Soc. (Both Ends) Pressure Port "P" Cylinder Port "A" Pilot Pressure Port "X" Manual Adjustment Screw 3(.) ex.soc. (Both Ends) Tank Port "T" SOL a 8.8 (.) (.3) 93. (3.68) Mounting Surface (s Furnished) (8.3) SOL b Cylinder Port "B".9 (.) Pilot Drain Port "Y" (.7) 6 (.8) 7(.8) Dia. Through (.3) Dia. Spotface Places 37. 39 (.8) (.) 79 (3.) 6(.) 7(.6) 7 (.76) EDFG---3C -XY- -3/39 Position of cable departure can be changed. For details, refer to above EDFG-3. Note: For valve mounting surface dimensions, see the dimensional drawings of subplates (p.) in common use. Tank Port "T" (.3) Dia. Through 7.(.69) Dia. Spotface Places Mounting surface: Conform to ISO-AD-7--A. Pressure Port "P" 8.8 (.).6 (.) 3(.3) 9.3 (3.9) Pilot Pressure Port "X" 69.8 (.7) 7.9 (.87) 9 (3.8) 7. (.8) Connector 8 (.89) Cylinder Port "A" Cable Departure (.97) Cable Applicable: Outside Dia.... 8- mm (.3 -.39 in.) 7(.8) Dia. Through Conductor Area (.3) Dia. Spotface... Not Exceeding. mm Places 6. (.3 sq. in.) (.8) 6. (.8) Pilot Drain Port "Y" Cylinder Port "B" 39 (.). (.6) 9. (.36) 7. (.6) 3(.) ex. Soc. (Both Ends) SOL a SOL b 3 (.3) 3 (.38) 6 (.7) 8. (7.3) Manual Adjustment Screw 3(.) ex.soc. (Both Ends) 3(.) Dia. Two Locating Pins (.6) Mounting Surface (s Furnished) (8.3). (.98) 78 Directional and Flow Control Valves

SERIES EDFG-6-8-3C -XY- -3/39 Mounting surface: Conform to ISO-AE-8--A. Pressure Port "P" Pilot Drain Port "Y" Position of cable departure can be changed. For details, refer to EDFG-3 valve on page 78. Note: For valve mounting surface dimensions, see the dimensional drawings of subplates (p.) in common use. Tank Port "T" 6. (.7) 8.8 (.) 3. (.3) 3. (.9) 9. (3.63) 8 (.6) Connector 7. (.8) 8 (.89) Pilot Pressure Port "X" Cylinder Port "A" Cable Departure Cable Applicable: Outside Dia.... 8- mm (.3 -.39 in.) Conductor Area... Not Exceeding. mm (.3 sq. in.) 39 (.) 77 (3.3) Cylinder Port "B" 6. (.8) 6. (.8) 3 (.) 3.(.3) Dia. Through (.79) Dia. Spotface 6 Places 7. (.6) 3(.) ex. Soc. (Both Ends) SOL a SOL b (.7) (.6) 37 (.39) 6. (8.3) Manual Adjustment Screw 3(.) ex.soc. (Both Ends) 6(.) Dia. Two Locating Pins 6 (.).3 (.98) Mounting Surface (s Furnished) (.) DIMENSIONS IN MILLIMETRES (INCES) Interchangeability between Current and New Design Specifications and Characteristics No changes in specifications and characteristics between current and new design. Mounting Interchangeability The mounting surface are interchangeable. Note that because of improvements made on the solenoids, the overall shapes have been changed as shown below. Current: Design 3 Manual Adjustment Screw New: Design 3 Manual Adjustment Screw E Directional and Flow Control Valves SOL a SOL b Directional and Flow Control Valves 79

Input Current vs. Flow Viscosity : 3 mm /s ( SSU) Valve Pres. Difference : P A (B), B (A) T ( ) L /min 8 6 EDFG-3 AB AB PT PT U.S.GPM 3 Valve Pressure Difference vs. Flow Viscosity : 3 mm /s ( SSU) EDFG-3 3 3 U.S.GPM 7 ma 3 AB L /min 7 ma 3 PT 8 Valve Pres. Diff. 6 ma. 6 8 6 ma 8 6. Valve Pres. Diff. 8 6 6 8 Input Current ma L /min 6 8 6 EDFG- AB AB PT P T U.S.GPM 3 8 6 6 8 Input Current ma L /min 3 EDFG-6 7 AB PT AB PT 6 3 8 6 6 8 Input Current ma U.S.GPM 8 AB 7 ma 3 7 ma PT 3 U.S.GPM 3 3 AB 6 7 ma 8 ma 9 ma Valve Pres. Diff.. 6 8 PT 7 U.S.GPM 3 3 AB 6 8 Valve Pres. Diff.. 6 6 ma 7 ma 8 ma 9 ma PT U.S.GPM 3 3 8 L /min EDFG- 3 3 U.S.GPM 8 AB 7 9 ma L/min 6 PT 8 ma 6 8 8 6. Valve Pres. Diff. 8 6 L /min 8 7 ma EDFG-6 3 3 U.S.GPM 9 ma AB L /min 8 ma 3 8 PT 8 8 6. Valve Pres. Diff. 3 L /min 6 ma 7 ma 6 7 Directional and Flow Control Valves

SERIES Phase (deg.) Frequency Response - - - 6-8 - - - -6-8 Gain (db) - - -3 EDFG-3 Frequency (z)...7 7 Phase Model Number : EDFG-3--3C-E-3 Viscosity : 3 mm /s( SSU) Pilot Pressure :.7 (8 ) Travel of Spool : ±% of Maximum Stroke Gain Step Response These characteristics have been obtained by measuring on each valve. Therefore, they may vary according to a hydraulic circuit to be used. U.S.GPM L / min 3 3 8 6 Viscosity : 3 mm /s( SSU) Supply Pressure :.7 (8 ) EDFG-3. s Step Signal Phase (deg.) - - - 6-8 - - - -6-8 Gain (db) - - -3 EDFG- Frequency (z)...7 7 Phase Gain U.S.GPM L / min 7 3 7 Time EDFG-. s Phase (deg.) - - - 6-8 - - - -6-8 Model Number : EDFG---3C-E-3 Viscosity : 3 mm /s( SSU) Pilot Pressure :.7 (8 ) Travel of Spool : ±% of Maximum Stroke Gain (db) - - -3 EDFG-6 Frequency (z)...7 7 Phase Model Number : EDFG-6-8-3C-E-3 Viscosity : 3 mm /s( SSU) Pilot Pressure :.7 (8 ) Travel of Spool : ±% of Maximum Stroke Gain U.S.GPM L / min 3 8 3 6 Step Signal Time EDFG-6. s Step Signal Time E Directional and Flow Control Valves Directional and Flow Control Valves 7

List of Seals and Solenoid Ass'y EDFG-3--3C -XY- -3/39 EDFG---3C -XY- -3/39 EDFG-6-8-3C -XY- -3/39 8 7 6 6 8 7 9 9 3 8 7 6 Removed for internal pilot models X Y Section X-X T A P B T 6 X Y 9 3 3 Section Y-Y List of Seals and Solenoid Ass'y Item Name of Parts EDFG-3 Part Numbers Qty. EDFG- Part Numbers Qty. EDFG-6 Part Numbers Qty. 6 3 6 Solenoid Ass'y E38-Y6M-8-6 SO-NB-P8 SO-NB-A SO-NB-P9 SO-NB-P9 SO-NB-P9 SO-NB-P 6 E38-Y6M-8-6 SO-NB-P3 SO-NB-P SO-NB-P9 SO-NB-P9 SO-NB-P9 SO-NB-P E38-Y6M-8-6 SO-NB-P SO-NB-P3 SO-NB-P SO-NB-P SO-NB-P9 SO-NB-P Note: The GDM--B- connector assembly (Item 9) is not included in the solenoid assembly. When ordering seals, please specify the seal kit number from the table below. In addition to the above o-rings, seals for solenoid ass'y are included in the seal kit. For the detail of the solenoid ass'y o-rings, see page 67. List of Seal Kits Valve EDFG-3 EDFG- EDFG-6 Seal Kit Numbers KS-EDFG-3-3 KS-EDFG--3 KS-EDFG-6-3 7 Directional and Flow Control Valves

Specifications SERIES igh Response Type Proportional Electro-ydraulic Directional and Flow Control Valves igh response, high precision and high reliability are achieved be a combination of a compact and powerful solenoid and a spool-position-detection LVDT. Direct type ELDFG-/3 and two stage type ELDFG-/6 (which use the ELDFG- as a pilot) are available. Direct Operated Type Directional and Flow Control Valves This product can be interchanged with the simpliffied servo valve to perform position control and pressure control. Compared to nozzle flapper type servo valve, this product has excellent contamination-related problems. Description Model No. Max. Operating Pressure () Max. Tank Line Back Pressure () Rated Flow L/min (U.S.GPM) Valve Pres. Diff. :. ( ) ysteresis Repeatability Step Response (Typical Rating) Frequency Response ( ± %V) Rated Current Coil Resistance Power Input Approx. Mass % % Phase -9 degree Gain -3 db [ C (68 F)] kg (lbs.) ELDFG- : (.6) : (.3) 3: 3 (9.) 3. (7 ) (3) ELDFG-3 : (.6) 8: 8 (.).% or less.% or less 3C, 3C: 9 ms 3 ms 3CP: ms 3C, 3C: 6 ms 38 ms 3CP: 3 ms 3C, 3C: 36 z 8 z 3CP: z 3C, 3C: 3 z z 3CP: 38 z Max.. A Max. 3 A 3.9 3 Max. W Max. 7 W 3. (7.) 7. (6.) Range of Flow Control See Valve Pres. Difference vs. below charactristics for the appropriate range. Graphic Symbols U.S.GPM L/min U.S.GPM L/min U.S.GPM L/min 8 6 Rated Flow 3 Rated Flow 3 Rated Flow 3 L/min 8 L/min 8 L/min (9. U.S.GPM) (. U.S.GPM) (. U.S.GPM) L/min L/min L/min (. 6 U.S.GPM) (. 6 U.S.GPM) (. 3 U.S.GPM) L/min (. 6 U.S.GPM) 3 3 3 3. 3. 3. 3 3 3 P Control Type Port Valve SOL.a A B PT ELDFG- SOL.b Control Type 3 Port Valve SOL.a A PT SOL.b Control Type Port Valve SOL a A B PT Valve Pres. Diff. P Valve Pres. Diff. P Valve Pres. Diff. Valve pressure difference P is reference by follows. In addition, P, A, B, T, are pressure of each port. Port Valve: P = [(P A) + (B T)] or [(P B) + (A T)] 3 Port Valve: P = (P A) or (A T) SOL b SOL.a SOL.a ELDFG-3 ELDFG- A B PT 3C 3CP A B P T 3C SOL.b SOL.b Control Type 3 Port Valve SOL a A P T SOL a SOL a ELDFG-3 SOL b A B PT 3C 3CP A B PT 3C SOL b SOL b E Direct Operated Type Directional and Flow Control Valves igh Response Type Directional and Flow Control Valves 73

Model Number Designation F- Special Seals ELDF Number G Type of Mounting - Valve Size -3 Rated Flow L/min (U.S.GPM) -3C Spool Type F: Special Seals ELDF: : (.6) 3C 3C 3CP for Phosphate igh Response (Direct) Type G: : (.3) Ester Type Proportional Electro 3: 3 (9.) Fluid (Omit if not -ydraulic Directional Mounting 3 : (.6) required) and Flow Control Valves 8: 8 (.) (Zero Lap) Design Standards: None... Japanese Standard "JIS" and European Design Standard 9... N. American Design Standard -XY Direction of Flow XY: Metre-In Metre-Out - Design Number Design Standards Refer to Attachment Mounting Bolts Four socket head cap screws in the table below are included. Model No. Descriptions Soc. d. Cap Screw ( pcs.) Tightening Torque ELDFG- ELDFG-3 Japanese Standard JIS European Design Standard N. American Design Standard Japanese Standard JIS European Design Standard N. American Design Standard M Lg. No. - UNC -3/ Lg. M6 3 Lg. /- UNC -/ Lg. - 7 Nm (3-6 in. lbs.) Applicable to working pressure more than (363 ): 6-7 Nm ( - 6 in. lbs.) [ ] - Nm (6-33 in. lbs.) Valve Model Numbers ELDFG- ELDFG-3 Piping Size /8 / 3/8 3/8 / 3/ Japanese Standard "JIS" DSGM--3 DSGM-X-3 DSGM-Y-3 DSGM-3- DSGM-3X- DSGM-3Y- Thread Size Rc /8 Rc / Rc 3/8 Rc 3/8 Rc / Rc 3/ European Design Standard DSGM--38 DSGM-X-38 DSGM-3-8 DSGM-3X-8 DSGM-3Y-8 Thread Size /8 BSP.F / BSP.F 3/8 BSP.F / BSP.F 3/ BSP.F N. American Design Standard Thread Size DSGM--39 /8 NPT DSGM-X-39 / NPT DSGM-Y-39 3/8 NPT DSGM-3-9 3/8 NPT DSGM-3X-9 / NPT DSGM-3Y-9 3/ NPT Approx. Mass kg (lbs.).8 (.8).8 (.8).8 (.8) 3. (6.6) 3. (6.6).7 (.) s are available. Specify the sub-plate model number from the table above. When sub-plates are not used, the mounting surface should have a good machined finish. The s are those for /8 and 3/8 solenoid operated directional valves. For dimensions, see page 36 and 373. Applicable Power Amplifiers For stable performance, it is recommended that Yuken's applicable power amplifiers be used (for details see page 786). Valve ELDFG-- - 3C 3C ELDFG-- -3CP ELDFG-3- - 3C 3C ELDFG-3- -3CP Power Amplifier AMN-L--- AMN-L--3-P- AMB-EL-3-- AMB-EL-3-P-- 7 igh Response Type Directional and Flow Control Valves

SERIES ELDFG-- - -XY-/9 Mounting surface: Conform to ISO-AB-3--A. The direction can be altered to every 9 degree angles. 3(.) ex. Soc..7 (.3).(.) Dia. Through 9.(.37) C Bore Places. (.9) Pressure Port P Cylinder Port A 3(.) ex. Soc. : SIG 8(.89) 7. (.8) 3.(.8) Cable Departure Cable Applicable: Outside Dia.... 8 mm(.3.39 in.) Conductor Area....7 -. mm (. -.3 sq. in.) 3 (.) Cylinder Port B 8. (.8) Tank Port T 8 (3.3) 3: Earth Terminal 39 (.) 3: COM : CAR, : Power supply Terminal 86.(7.3) 33(.) 37 (.6) 39 (.).(.) ex. Soc. Cable Departure Cable Applicable: Outside Dia..... 7 mm(.8.8) Conductor Area.....7 mm (.8. sq. in.) (.98) 38 (.) 9(3.7) 8 (.8) (.73) Manual Actuator 6(.) Dia. Mounting Surface (s Furnished) (.3) 6 (.6) 33(3.9) Note: For valve mounting surface dimensions, see the dimensional drawings of sub-plates (p.36) in common use. ELDFG-3- - -XY-/9 7(.8) Dia. Through.(.) ex. Soc..(.) C Bore Places Cylinder Port A (.73) :SIG 3:COM 37 (.6) :CAR Tank Port TA Tank Port TB 9(7.6) 38.(.) SOL b 39 (.) Pressure Port P Cable Departure Cable Applicable: Outside Dia..... 7 mm(.8.8) Conductor Area.....7 mm (.8. sq. in.) 37 (.6) (.3) YUKEN 9 (3.8) (.83) Cylinder Port B 73(6.8) SOL a Mounting surface: Conform to ISO-AC---A. The direction can be altered to every 9 degree angles. 6(.8) 6(.) Dia. 3(.) ex. Soc. Places, : Power supply Terminal 3: Earth Terminal DIMENSIONS IN MILLIMETRES (INCES) Cable Departure Cable Applicable: Outside Dia.... 8 mm(.3.39 in.) Conductor Area....7 -. mm (. -.3 sq. in.) 7(.76) 7. (.8) 7(.83) 36 (.) (.7) E Direct Operated Type Directional and Flow Control Valves Mounting Surface (s Furnished) 36 (.37) 86 (3.39) 6 (.63) Manual Actuator 6(.) Dia. Note: For valve mounting surface dimensions, see the dimensional drawings of sub-plates (p.373) in common use. igh Response Type Directional and Flow Control Valves 7

Input Voltage vs. ELDFG 3C/3C Valve Pres. Diff. :. (7 ) Viscosity : 3 mm /s ( SSU) U.S.GPM L/min 3 L/min 7. 3 A B (9. U.S.GPM) P T L/min (.3 U.S.GPM) L/min. (.6 U.S.GPM) VDC Input Voltage 8 8 Input Voltage VDC L/min. (9. U.S.GPM) L/min A B (.3 U.S.GPM) P T 3 7. 3 L/min (.6 U.S.GPM) L/min U.S.GPM ELDFG 3 3C/3C Valve Pres. Diff. :. (8 ) Viscosity : 3 mm /s ( SSU) U.S.GPM L/min 8 8 L/min A B (. U.S.GPM) 6 P T L/min (.6 U.S.GPM) VDC Input Voltage 8 8 Input Voltage VDC L/min (.6 U.S.GPM) 8 L/min A B P T 6 8 (. U.S.GPM) L/min U.S.GPM VDC... Input Voltage vs. Spool St. ELDFG 3C/3C Sensor Monitor Voltage 8 VDC Input Voltage. in. A B P T 3 mm mm 3 ELDFG 3 3C/3C Sensor Monitor Voltage Spool St...8 Input Voltage VDC 8 A B P T mm in.. 3...8.... VDC Input Voltage. 8... 6 A B. 8 P T. 3. VDC mm Spool St. in...8. Spool St.... VDC VDC A B 8 P T 6 8 Input Voltage VDC..8. in. Spool St. Sensor Monitor Voltage Sensor Monitor Voltage ELDFG 3CP Valve Pres. Diff. :. (7 ) Viscosity : 3 mm /s ( SSU) U.S.GPM L/min 7. 3 A B 3 L/min (9. U.S.GPM) L/min P T (.3 U.S.GPM) L/min. (.6 U.S.GPM) VDC Input Voltage 8 8 Input Voltage VDC L/min. (9. U.S.GPM) L/min A B (.3 U.S.GPM) P T 3 7. 3 L/min (.6 U.S.GPM) L/min U.S.GPM ELDFG 3 3CP Valve Pres. Diff. :. (8 ) Viscosity : 3 mm /s ( SSU) U.S.GPM L/min 8 8 L/min A B (. U.S.GPM) 6 VDC Input Voltage P T L/min (.6 U.S.GPM) 8 8 Input Voltage VDC L/min (.6 U.S.GPM) A B 6 8 L/min P T 8 (. U.S.GPM) L/min U.S.GPM VDC... ELDFG 3CP Sensor Monitor Voltage A B P T mm 3 Input Voltage VDC 8 8 VDC Input Voltage 3 mm ELDFG 3 3CP Sensor Monitor Voltage Spool St. A B P T mm in.. 3...8.... VDC Input Voltage. 8.. 6. A B 8. P T. 3. VDC mm Spool St...8. in. in...8.... VDC VDC A B P T 8 6 8 Input Voltage VDC..8 Spool St.. in. Spool St. Sensor Monitor Voltage Sensor Monitor Voltage 76 igh Response Type Directional and Flow Control Valves

SERIES Step Response (Example) Viscosity : 3 mm /s ( SSU) The values were measured on independent valves. They vary by circuit. ELDFG--3-3C/3C Supply Pressure : (9 ) : 3 L/min (9. U.S.GPM) ELDFG--3-3CP Supply Pressure : (9 ) : 3 L/min (9. U.S.GPM) Step Signal -% Step Signal -% Travel of Spool 3L/min (9. U.S.GPM) ms Travel of Spool % 3L/min (9. U.S.GPM) ms Step Signal ms (9. U.S.GPM) % 3L/min Step Signal ms (9. U.S.GPM) % 3L/min Travel of Spool +% Travel of Spool +% ELDFG-3-8-3C/3C Supply Pressure : (8 ) : 8 L/min (. U.S.GPM) ELDFG-3-8-3CP Supply Pressure : (8 ) : 8 L/min (. U.S.GPM) ms ms Step Signal Travel of Spool (. U.S.GPM) % 8L/min -% Step Signal Travel of Spool (. U.S.GPM) % 8L/min -% Phase (deg.) +% % 8L/min (. U.S.GPM) ms ELDFG--3-3C/3C/3CP Frequency (z) 7 7 - - - - - - - - Frequency Response Gain (db) Step Signal Travel of Spool Input Signal : ± %V Primary Pressure : PMa (3 ) Viscosity : 3 mm /s ( SSU) Gain Phase Phase (deg.) - -9-3 -8 Gain (db) +% % 8L/min (. U.S.GPM) ELDFG-3-8-3C/3C Frequency (z) 7 7 - - - - Step Signal Travel of Spool Gain Phase ms Phase (deg.) - -9-3 -8 Gain (db) - - - - ELDFG-3-8-3CP Frequency (z) 7 7 Gain Phase E Direct Operated Type Directional and Flow Control Valves igh Response Type Directional and Flow Control Valves 77

List of Seals and Solenoid Ass'y ELDFG-- - -XY-/9 6 7 7 9 3 8 8 6 List of Seals Item Name of Parts Part Numbers Qty. - - - 8 Fastner Seal Fastner Seal SO-NB-P8 SG-FCF- TK8- SO-NB-P9 Remarks Included in Seal Kit Kit No.: KS-ELDFG-- Note) O-ring (Item -) and the fastner sael (Item -, -) are included in the solenoid assembly. Solenoid Ass'y Valve ELDFG-- - -XY-/9 Item Solenoid Ass'y E38-Y6M--7 E38-Y6M--L-7 Qty. Note) The connector assembley GDM-- - (Item 6, 7) is not included in the solenoid assembly. 78 igh Response Type Directional and Flow Control Valves

SERIES List of Seals and Solenoid Ass'y ELDFG-3- - -XY-/9 6 6 3 9 List of Seals Item Name of Parts Part Numbers Qty. - - 6- Fastner Seal Fastner Seal SO-NB-A8 SG-FCF- TK8- SO-NB-A Remarks Included in Seal Kit Kit No.: KS-ELDFG-3- Note) O-ring (Item -) and the fastener sael (Item -, 6-) are included in the solenoid assembly. Solenoid Ass'y Valve ELDFG-3- - -XY-/9 Item 6 Solenoid Ass'y E3-YM-8- E3-YM-8-L- Qty. Note) The connector assembley GDM-- - (Item, ) is not included in the solenoid assembly. E Direct Operated Type Directional and Flow Control Valves igh Response Type Directional and Flow Control Valves 79

Two Stage Type Directional and Flow Control Valves Specifications Description Model No. Rated Flow L/min (U.S.GPM) Valve Pres. Diff. : ( ) Max. Operating Pressure () Proof Pressure at Return Port (External Drain) () Proof Pressure at Return Port (Internal Drain) () Pilot Pressure () Pilot Flow Null Leakge 3 Ps= (3 ), Pp= (3 ) Step Response (Typical Rating) ( %) Pp= (3 ) Frequency Response (±%V, Phase) Pp= (3 ) Water - Proofness Operating Temperature Range ELDFG- 8 (7.) 3 (8) T Port : 3. (7) Y Port : (3) (3). 3. (8 7) ELDFG-6 3: 3 (9.) : (3.) 3: 3 (8) : 3. (7) 3 T Port : 3 (8) Y Port : (3) T Port : (363) Y Port : (3) 6 L/min or more 3: 6 L/min or more : 9 L/min or more 3C: 3 L/min or less 3C: L/min or less 3CP: L/min or less 3: ms 3 ms : 8 ms 3: 66 z 6 z ( 9 degree) ( 9 degree) : 39 z IP6 +6 C ( F) Spool Type Approxmate Spool Stroke to Stops Main Spool End Area cm (sq. in.) Rated Current Coil Resistance Approx. Mass [ C (68 F)] kg (lbs.) 3C: 3CP: 3C: (Zero Rap) 3: ± mm (±. in.) ± mm (±. in.) : ±7 mm (±.8 in.) 7. (.) 8 (.) Max.. A 3.9 3: 8 (39.7) (.) : 9 (.9). Return pressure should be less than the actual supply pressure.. Pilot pressure should be between. (8 ) and 3. (8 ), and should exceed 6% of the actual supply pressure to main valve. 3. Pilot flow is calculated with the above step response time at pilot pressure (3 ).. Added up leakage of main and pilot spools are stated. a Graphic Symbols A B P T Y Internal Pilot / External Drain Type a A B P T Y X External Pilot / External Drain Type b b a A B P T Internal Pilot / Internal Drain Type a A B P T X External Pilot / Internal Drain Type b b Model Number Designation F- Special Seals ELDF Number G Type of Mounting - Valve Size -8 Rated Flow L/min (U.S.GPM) -3CP Spool Type -XY Direction of Flow -E Pilot Connection T Drain Connection - Design Number Design Standards F: ELDF: 3C 3C 8: 8(7.) G: Sub-Plate Mounting 3CP Special Seals for Phosphate Ester Type Fluids (Omit if not required) igh Response (Two Stage) Type Proportional Electro- ydraulic Directional and Flow Control Valves 6 3: 3(9.) : (3.) (Zero Lap) XY : Metre-in Metre-out None: Internal Pilot None: External Drain E: T : External External Pilot Drain Refer to. Design Standards: None... Japanese Standard "JIS" and European Design Standard 9... N. American Design Standard 76 igh Response Type Directional and Flow Control Valves