Pilot Operated Flow Control Valves / Pilot Operated Flow Control and Check Valves

Transcription

1 FLOW CONTROLS Flow control of these valves is continuously made by a hydraulically operated pilot piston mechanism which controls opening area of the orifice of the valve. With the use of these valves, shockless operation either in acceleratio or deceleration can be obtained. With the compensator for the pressure and temperature, stable flow control can be obtained regardless of the changes in the pressure (load) and temperature (oil viscosity). T Graphic Symbols T Max. Min. Metred Flow Metred Flow Capacity Capacity L/min (U.S.GPM) L/min (U.S.GPM). (.) (7.9). (.) () (.) (66) () (.6) /--- - /--- - / /--- - Max. Operating Pressure MPa (PSI) Min. Pilot Pressure MPa (PSI) (). () pprox. Mass kg (lbs.) (8.7) 7 (7.) (7.6) 6 () P T B Special Seals F: Special Seals for Phosphate Ester Type Fluids (Omit if not required) FHC Series Number FH: Pilot Operated Flow Control Valves FHC: Pilot Operated Flow Cont. & Check Valves G Type of Mounting - - Valve Size Max. Metred Flow L/min (U.S.GPM) G: Sub-plate Mounting 6 -N Pressure Compensator Stroke dj. -O - With No Pilot Valve Coil Type C: : (7.9) : () : (66) : () N: pplicable only for Pres. Compensator Stroke djustment (Option Omit if not required) O: pplicable only for Without Pilot Valve C: 8 C C: R R O M O M O M P B -N - Type of Electrical Connections esign Number esign Standards None: Terminal Box Type N: With Plug-in Connector (in) N: With Plug-in Connector (in) None: Japanese Std. "JIS" 9: N.merican esign Std. 8: European esign Std.. Both solenoid operated directional valve (SG-) and modular valve (MSW-) can be used as a pilot valve. If no pilot valve is required, there is no needs to specify the coil type and the electrical connection type of solenoid operated directional valve.. The coil types are same as those for SG- Series solenoid operated directional valves. See solenoid ratings on page.. Pres. compensator stroke adjustment: Can reduce jumping at the start of the actuator. In the table above, the symbols or numbers highlighted with shade represent the optional extras. The valves with model number having such optional extras are handles as options, therefore, please confirm the time of delivery with us before ordering. ttachment Mounting Bolts Valve /- /- /-6 /- Socket Head Cap Screw Japanese Std. "JIS" & European esign Std. N. merican esign Std. /6-8 UNC Lg. M8 Lg. /8-6 UNC Lg. M 7 Lg. /8- UNC Lg. M6 Lg. /- UNC 6-/ Lg. M Lg. Qty. B Pilot Operated Flow Control Valves Pilot Operated Flow Control and Check Valves Specifications F- P 89

2 Sub-plate Valve Model Numbers Japanese Standard "JIS" Sub-plate Model No. Thread Size European esign Std. Sub-plate Model No. FGM--8 FGM--8 FGM-Y-8 FGM--8 FGM--8 FGM-Y-8 FGM-Z-8 FGM-6-8 FGM-6Y-8 FGM-6Z-8 FGM-- Rc / - FGM-- Rc /8 FGM-Y- Rc / FGM-- Rc /8 FGM-- Rc / - FGM-Y- Rc / FGM-Z- Rc FGM-6- Rc -6 FGM-6Y- FGM-6Z- Rc -/ Rc -/ - FGM-Y- -/, FGM-Y- Sub-plates 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. FGM-Y is special type sub-plates to be used with pipe flange. When ordering FGM-Y, specify the pipe flange kit in addition to FGM-Y referring to F pipe flanges shown on page 8. Thread Size / BSP.F /8 BSP.F / BSP.F /8 BSP.F / BSP.F / BSP.F BSP.F BSP.F -/ BSP.F -/ BSP.F -/, N. merican esign Std. pprox. Mass Thread Size kg (lbs.) Sub-plate Model No. FGM--9 FGM--9 FGM-Y-9 FGM--9 FGM--9 FGM-Y-9 FGM-Z-9 FGM-6-9 FGM-6Y-9 FGM-6Z-9 FGM-Y-9 / NPT /8 NPT / NPT /8 NPT / NPT / NPT NPT NPT -/ NPT -/ NPT. (.). (.). (6.8).9 (8.6).9 (8.6).7 (.6).7 (.6). (7.6) 6 (.) 6 (.) -/, 7 (8.6) Sub-plates are common with flow control valves. For dimensions, see pages 8 to 8. Instructions Control patterns and flow rate adjustment Flow Rate Solenoid Signal Set by the pilot flow adj. dial for "" line. OFF T Time ON Set by the max. flow adj. screw. T OFF ec. ec. Set by the pilot flow adj. dial for "B" line. Set by the min. adj. screw. ec. Inc. While the solenoid operated directional valve off ( shown left) The flow rate is set by the minimum flow adjustment screw and the actuator operates at the minimum speed setting. When the solenoid operated directional valve is turned on ( shown left) The flow rate is shifted from minimum to maximum and the actuator speed is also shifted likewise. The switching time can be set by the pilot flow adjustment dial. When the solenoid operated directional valve is turned off ( shown left) The flow rate is shifted from maximum to minimum and the actuator speed is also shifted likewise. The switching time can be set by the pilot flow adjustment dial. Tightening of flow adjustment screws and dials To adjust flow rates, slacken the lock nut or the dial setting screw. fter adjustments, tighten the lock nut or the dial. Min. required pressure difference The minimum differential pressure between inlet and outlet port is required to obtain the optimum pressure compensation. It varies according to the flow rate to be set. For details, please refer to the performance curves. Free flow Check valve pressure drops vary with flow rates. If models with check valves are used, see free flow pressure drop characteristics. Line filter To carry out flow adjustments by as small degree as L/min (. U.S.GPM) or less, be sure to use a line filter of µm or finer and install it near the valve inlet. 9

3 FLOW CONTROLS Metred Flow vs. Cylinders Stroke U.S.GPM L/min Min. Metred Max. Metred mm Flow Rate - Flow Rate U.S.GPM L/min 8 Min. Metred - Max. Metred mm....7 IN. Cylinders Stroke....7 IN. Cylinders Stroke U.S.GPM 8 7 Flow Rate L/min Min. Metred -6 Max. Metred mm....7 IN. Cylinders Stroke Flow Rate U.S.GPM 7 L/min Min. Metred - Max. Metred mm....7 IN. Cylinders Stroke Pilot Operated Flow Control Valves Pilot Operated Flow Control and Check Valves Other Characteristics The following characteristics are the same as for flow control valves; Metred Flow vs. ifferential Pressure Metred Flow vs. Viscosity Min. Required Pressure ifference Pressure rop for Reversed Free Flow (only for models with check valves) See pages 8 to 86. For reference, the corresponding model No. of the flow control valves are shown below. Valve Model No Model No. FG FCG FG FCG FG FCG FG FCG

4 Terminal Box Type /---* - * -/9 /---* - * -/9 H L J K (.6) "e" ia. Through "f" ia. Spotface Places Fully Extended C 9 Fully Extended (.) d Controlled Flow Inlet or Reversed Free Flow Outlet Port / / / / Mounting surface: FH G-: ISO 66-K-6-- FH G-: ISO 66-M-7-- IMENSIONS IN MILLIMETRES (INCHES) n Rc / / NPT Rc / / NPT t G / / NPT G / / NPT Note: For dimensions of the valve mounting surface, see the installation drawing (P.8 and 8) of the sub-plate used together. Controlled Flow Outlet or Reversed Free Flow Inlet Port F E Pilot Line Tank Port "T" (Rear) Pilot Line Pressure Port "P" 7. C/R:.(.) (.87) C :98.(.87) 7. (.87) Space Needed to Remove Solenoid-Each End C/R:(.97) C :.(.79) Electrical Conduit Connection "t" Thd. (Both End) 88.8 (.) Pilot Flow dj. ial (For "B" line) (S) (.7) 7 (.9) (.6) ia Manual ctuator 6(.) ia. Lock Nut 9(.7) Hex. V Pilot Flow dj. ial (For "" line) Max. Flow djustment Screw 9(.7) Hex. Fully Extended (.79) a Q Z N h U Y Min. Flow djustment Screw 9(.7) Hex. 6 (.) Mounting Surface (s Furnished) Pressure Compensator Stroke djustment (Only for FH G- - -N ) Locating Pin 6(.) ia. "j" Places Model Numbers - - C 7. (.).7 (.) 96 (.78) (.9) E 76. (.).6 (.) F 9.9 (.9).7 (.6) H.6 (.96) (.9) J 8.6 (.).6 (.) K. (.7) 6.8 (.) imensions L 9 (.).7 (.6) N (.7) 6 (.) Q (.9) (.6) S 7.8 (.7).8 (.88) U 69 (.7) 98 (.86) V. (.) 8. (.6) 7. (8.7) 6. (9.) Y 66 (6.) 9 (7.68) Z 9 (.8) 8 (6.) Model Numbers - - a (.9) (.) imensions d 8. (.).8 (.) e 8.8 (.) (.) f (.) 7. (.69) h 9 (.) 6 (.8) j 9

5 FLOW CONTROLS Models with Plug-in Connector /---* - * -N-/8/9 /---* - * -N-/8/9 IMENSIONS IN MILLIMETRES (INCHES) Pilot Line Tank Port "T" (Rear) Pilot Line Pressure Port "P" C/R:6.(.76) C :.(.) (.) q C/R:.(.) C :98.(.87) Cable eparture Cable pplicable: Outside ia mm (. -.9 IN.) Conductor rea... Not Exceeding. mm (. SQ. IN.) Three positions of cable departure are available by loosening "Lock Nut" as shown. fter location, tighten "Lock Nut" with torque in the range. to. Nm (9 - IN.lbs.). / N / N / N / N /--- -R -N /--- -R -N Lock Nut imensions SS VV q 7. (.7). (.87) 8. (.6). (.) 86. (.8). (.). (.6) 89. (.) 7. (.69). (.8) 6.7 (.) 9.7 (.6) 7. (8.7) 6. (9.) 7. (8.7) 6. (9.) 7. (8.7) 6. (9.) 9 (.) 9 (.) (.9) VV Remarks with C Solenoid with C Solenoid with C C Solenoid (SS) Pilot Operated Flow Control Valves Pilot Operated Flow Control and Check Valves / N / N Japanese Std. "JIS" esign Rc / For other dimensions, refer to "Terminal Box Type". Thread Size European esign Std. esign 8 / BSP.F N.merican esign Std. esign 9 / NPT 9

6 Terminal Box Type /-6--* - * -/9 /---* - * -/9 Controlled Flow Outlet or Reversed Free Flow Inlet Port K (.6) 9 Fully Extended (.) Fully Extended C F E / / / / Mounting surface: FH G-6: ISO 66-P-8-- IMENSIONS IN MILLIMETRES (INCHES) q Rc / / NPT Rc / / NPT G / / NPT G / / NPT Note: For dimensions of the valve mounting surface, see the installation drawing (P.8 and 8) of the sub-plate used together. r Pressure Compensator Stroke djustment (Only for FH G- - -N ) J H S n L Controlled Flow Inlet or Reversed Free Flow Outlet Port "h" ia. Through "m" ia. Spotface Places Pilot Line Tank Port "T" (Rear) Pilot Line Pressure Port "P" 7. C/R:.(.) (.87) C :98.(.87) 7. (.87) Space Needed to Remove Solenoid-Each End C/R:(.97) C :.(.79) Electrical Conduit Connection "r" Thd. (Both End) 88.8 (.) Pilot Flow dj. ial (For "B" line) (U) (.7) 7 (.9) (.6) ia Manual ctuator 6(.) ia. Lock Nut 9(.7) Hex. Pilot Flow dj. ial (For "" line) Max. Flow djustment Screw 9(.7) Hex. Q Y Min. Flow djustment Screw 9(.7) Hex. V t N d a Z Mounting Surface (s Furnished) e aa Locating Pin "f" ia. Places Model Numbers -6 - C 66. (.6) (.8) 8 (7.9) (9.6) E 6. (.7) 96.9 (7.7) F 7 (.67). (.9) H 7 (6.8) 8 (8.98) J. (.) 77.8 (7.) K 7. (.88) 98. (.88) imensions L. (.8). (.99) N (.) 7 (.9) Q 6 (.6) 8 (.) S 8 (.7) (.9) U.8 (.) 6.8 (.) V (.) (6.). (.). (.) Y 68. (.7) 98. (.7) Z 7 (8.9) 7 (.) Model Numbers -6 - a 9 (7.8) (8.66) d 6 (6.) 9 (7.68) e 7 (.8) (.9) imensions f 6 (.6) 8 (.7) h 7. (.69). (.8) m 6 (.) (.6) n (.7) 6 (.) t (.6) (.) aa 99 (.9). (.69) 9

7 FLOW CONTROLS Models with Plug-in Connector /-6--* - * -N-/8/9 /---* - * -N-/8/9 IMENSIONS IN MILLIMETRES (INCHES) Pilot Line Tank Port "T" (Rear) Pilot Line Pressure Port "P" C/R:6.(.76) C :.(.) (.) m C/R:.(.) C :98.(.87) Cable eparture Cable pplicable: Outside ia mm (. -.9 IN.) Conductor rea... Not Exceeding. mm (. SQ. IN.) Three positions of cable departure are available by loosening "Lock Nut" as shown. fter location, tighten "Lock Nut" with torque in the range. to. Nm (9 - IN.lbs.). Lock Nut / N / N / N / N /-6-- -R -N /--- -R -N imensions UU YY m. (.) 6. (.). (.6) 7. (.7) 7. (.68) 77. (.86). (.66). (.8). (.9) 6. (.7).7 (.8).7 (.) 68. (.7) 98. (.7) 68. (.7) 98. (.7) 68. (.7) 98. (.7) 9 (.) 9 (.) (.9) YY Remarks with C Solenoid with C Solenoid with C C Solenoid (UU) Pilot Operated Flow Control Valves Pilot Operated Flow Control and Check Valves / N / N Japanese Std. "JIS" esign Rc / For other dimensions, refer to "Terminal Box Type". Thread Size European esign Std. esign 8 / BSP.F N.merican esign Std. esign 9 / NPT 9

8 8 9 List of seals Terminal Box Type /---* - * -/9 /---* - * -/9 Models with Plug-in Connector /---* - * -N-/8/9 /---* - * -N-/8/ (- Type) - - -N Type (- Type) 79 Section - List of Seals Item Name of Parts Back Up Ring - SO-NB-P SO-NB-P SO-NB-P SO-NB-P SO-NB-P SO-NB-P8 SO-NB-G SO-NB-P9 SO-NB-P SO-N-P6 SO-BB-P6 SO-NB-P8 Part Numbers - SO-NB-P SO-NB-P SO-NB-P6 SO-NB-P8 SO-NB-P SO-NB-P8 SO-NB-G SO-NB-P9 SO-NB-P SO-N-P6 SO-BB-P6 SO-NB-P8 Qty. Note: When ordering the seals, please specify the seal kit number from the table right. In addition to the above seals, seals for pilot valves are included in the seal kit. Pilot Valves See page 98 for the pilot valve model numbers to be used. List of Seal Kits Valve Seal Kit Numbers KS--- KS--- KS--- KS--- 96

9 8 9 FLOW CONTROLS Terminal Box Type /-6--* - * -/9 /---* - * -/9 Models with Plug-in Connector /-6--* - * /---* - -N-/8/9 * -N-/8/9 List of Seals Item Name of Parts Back Up Ring (- Type) Section - -6 SO-NB-P SO-NB-P SO-NB-P SO-NB-P SO-NB-P SO-NB- SO-NB-P9 SO-NB-P SO-N-P6 SO-BB-P6 SO-NB-P8 6 7 Part Numbers SO-NB-P SO-NB-P SO-NB-P8 SO-NB-P SO-NB-G7 SO-NB-P SO-NB-P9 SO-NB-P SO-N-P6 SO-BB-P6 SO-NB-P Qty. Note: When ordering the seals, please specify the seal kit number from the table right. In addition to the above seals, seals for pilot valves are included in the seal kit. (-6 Type) Pilot Valves See page 98 for the pilot valve model numbers to be used. List of Seal Kits Valve Section - (- Type) Seal Kit Numbers KS--6- KS--6- KS--- KS Pilot Operated Flow Control Valves Pilot Operated Flow Control and Check Valves 97

10 List of Pilot Valves List of Pilot Valves Type of Electrical Conduit Connections Valve Item No.6 Throttle and Check Modular Valves Pilot Valve Item No.6 Solenoid Operated irectional Valves Remarks Terminal Box Type / /--- - / / / / / / MSW--- MSW--- SG--B- -7 SG--B- -79 Japanese Std. "JIS" N. merican esign Std. / N- / N- / N- / N- MSW--- SG--B- -N-7 Japanese Std. "JIS" Plug-in Connector Type / N-8 / N-8 / N-8 / N-8 MSW--- SG--B- -N-7 European esign Std. / N-9 / N-9 / N-9 / N-9 MSW--- SG--B- -N-79 N. merican esign Std. Note:. Fill a coil type (a symbol representing current/voltage) in section marked.. For the detail of the MSW- valve O-rings, see Page 66.. For the detail of the SG- valve O-rings, see Page 9. 98