Proportional Electro-Hydraulic Flow Control (and Check) Valves

Transcription

1 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 etred Flow Adj. Range Rated Current Coil Resistance ysteresis Repeatability Approx. ass odel No. ax. perating Pressure Pa (PSI) L/min (U.S.GP) in. Differential Pressure Pa (PSI) Free Flow ( odels nly) L/min (U.S.GP) in. Pilot Pressure Pilot Flow L/min (U.S.GP) Pa (PSI) at Normal at Transition. in 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.) odel 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 ounting E - Valve Size -6-. ().- (.66-66). () 8 (7.). () (.6) (.6) 8 ma 3% or less % or less (.) ax. etred Flow L/min (U.S.GP) Internal Pilot Pilot Connection Graphic Symbols Design Number External Pilot Design Standards E Ω Flow Control (and Check) Valves F: Special Seals for Phosphate Ester Type Fluid (mit if not required) EF: Proportional Electro-ydraulic Flow Control Valve EFC: Proportional Electro-ydraulic Flow Control and Check Valve G: ounting : 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

2 Attachment ounting bolts Valve odel Numbers EF G-3 EF G-6 Socket ead Cap Screw Japanese Std. "JIS" and European Design Std. 8 Lg. 6 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). odel Numbers: AE-D-- - AE-D-- SK- - - SK- (For DC power supply) AN-D- (For DC power supply) Valve odel Numbers -3-6 Japanese Standard "JIS" odel Numbers -3Y-3-3Z-3-6X-3-6Y-3 Rc 3/ Rc Rc Rc -/ European Design Standard odel Numbers -3Y-38-3Z-38-6X-38-6Y-38 3/ BSP.F BSP.F BSP.F -/ BSP.F N. American Design Standard odel Numbers -3Y- -3Z- -6X- -6Y- 3/ NPT NPT NPT -/ NPT Approx. ass kg (lbs.).7 (.6).6 (.3). (7.6) 6 (.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. Pa (9 PSI). Pilot Type Selection This valve is constructed so as to operate at a predetermined pilot pressure. For the 3, a pilot pressure of Pa ( PSI) or higher is required. For the 6, the requied pilot pressure is. Pa ( PSI) or higher. To obtain such a required pilot pressure, select the pilot type according to the circuit examples on the right. P.P E- 6 [Example of Circuit] a A P P.P. B T 3 b 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) P.P E- 6 Use the external pilot type (pilot connection code: E) 76 Ω Flow Control (and Check) Valves

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

4 -3Y, 3Z-3/38/ "C" Thd. (From Rear) (.3) Dia. Through 7.(.69) Dia. Spotface. (.6).7(.6).8 (.3) (.9).(.3).6(.) (.9).8 (.).6 (.8) 3(.9) Dia. Places "D" Thd. "E" Deep 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(.) 68(6.6) 6(.) Dia. "C" Thd. (From Rear) 9(.) (.79) (.7) odel Numbers -3Y-3-3Z-3-3Y-38-3Z-38-3Y- -3Z- "B" Thd. "C" Thd. "D" Thd. Rc 3/ Rc Rc / 3/ BSP.F BSP.F / BSP.F 3/ NPT NPT / NPT 3/8-6 UNC E mm(in.) 8 (.7) (.83) -6X, 6Y-3/38/ 7(.67) Dia. (.) Deep Places 7.(.69) Dia. Through 6(.) Dia. Spotface 7(6.8) 6(.96) (.9) J 7 (.67) 8(7.9) 6(.).(.69) 8(.).8(.3) 73(.87).(.87).6 (.6) "A" Thd. Places "C" Thd. "D" Deep 3.7(.).7(.).3(.63) 8.7(3.37).8(.3) 33.(.) 36(.) DIENSINS IN ILLIETRES (INCES) 9(.) Dia. Places "Q" Dia. 9 (.) 33(.3) E K F 7(.79) (8.) (9.8) L "B" Thd. (From Rear) "B" Thd. (From Rear) 6(.) Dia. N P odel Numbers -6X-3-6Y-3-6X-38-6Y-38-6X- -6Y- "A" Thd. "B" Thd. "C" Thd. Rc Rc 3/8 Rc -/ BSP.F 3/8 BSP.F -/ BSP.F 6 NPT -/ NPT 3/8 NPT /8- UNC odel Numbers -6X-3-6Y-3-6X-38-6Y-38-6X- -6Y- D 3 (.8) (.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) (.76) 9.3 (3.9) (.7).3 (.6). (3.98) (.76) 9.3 (3.9) (.7).3 (.6). (3.98) (.76) 9.3 (3.9) (.7) L 3 (.3) (.) 3 (.3) (.) 3 (.3) (.) N (.38) (.7) (.38) (.7) (.38) (.7) P (.77) 6 (.36) (.77) 6 (.36) (.77) 6 (.36) Q (.3). (.6) (.9) (.3) 78 Ω Flow Control (and Check) Valves

5 Input Current vs. Flow Viscosity: 3 mm /s ( SSU) U.S.GP L /min 3-3 U.S.GP L /min EF G-3-3 EF G 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.GP 3 L /min -3 L /min (33 U.S.GP) 6 L /min (.9 U.S.GP).s Step Signal Time U.S.GP L /min 3-6 L /min (66 U.S.GP) L /min (33 U.S.GP).s Step Signal Time Frequency Response Viscosity: 3 mm /s ( SSU) -3 Phase (deg.) -6 Phase (deg.) Gain (db) Gain (db) Frequency (z) Phase : 6 L /min (7. U.S.GP) Supply Pressure : 3.7 Pa ( PSI) Gain Frequency (z) Phase : L /min ( U.S.GP) Supply Pressure : 3.7 Pa ( PSI) Gain E Ω Flow Control (and Check) Valves Ω Flow Control (and Check) Valves 79

6 U.S.GP L /min Viscosity vs. Flow -3 il: IS VG 6 il C Temperature F 3 mm /s Viscosity 3 8 SSU Differential Pressure vs. etred Flow U.S.GP L /min U.S.GP L /min 8 il: IS VG 6 il C Temperature F 3 mm /s Viscosity 3 8 SSU Pa -6 U.S.GP L /min Differential Pressure PSI Pa 3 PSI Differential Pressure 7 Ω Flow Control (and Check) Valves

7 List of Seals and Solenoid Ass'y / List of Seal Kits Valve odel Numbers Seal Kit Numbers KS--3- KS List of Seals and Solenoid Ass'y With Check Valve (-3) Note: The connector assembly GD--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 /9 Item Name of Parts Solenoid Ass'y Part Numbers E38-Y6-8-6 S-NB-G S-NB-P8 S-NB-P8 S-NB-P6 S-NB-P6 S-NB-P S-NB-P9 S-NB-P6 S-NA-A6 Qty B Detail of "A" B A C C With Check Valve (-6) Section B-B Note: The connector assembly GD--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 List of Seal Kits Valve odel Numbers Detail of Section C-C Seal Kit Numbers KS--6- KS--6- List of Seals and Solenoid Ass'y Item Name of Parts Part Numbers Solenoid Ass'y E38-Y6-8-6 S-NA-P S-NB-P S-NB-P6 S-NB-P36 S-NB-P3 S-NB-P3 S-NA-P S-NB-P S-NB-P9 Two -rings are required for the. Qty. 3 3 E Ω Flow Control (and Check) Valves Ω Flow Control (and Check) Valves 7