FLOW CONTROLS This valve is used to regulate an actuator speed in a circuit where line pressure is almost steady and small fluctuation of oil flow due to pressure changes is permitted. Integrated check valve allows reversed free flow from outlet to inlet port. Pressure balanced construction provides less effort in adjustment at high pressure. Graphic Symbols SRT/ SRCT/ SRT/ SRCT/ Specifications Valve Name Restrictor Threaded Connection Mounting SRT-3-/8/9-3-/9 SRT--/8/9 --/9 SRT--/8/9 --/9 Rated Flow () 3 (7.9) 85 (.) 3 (.7) Max. Operating Pres. MPa (PSI) 5 (33) Threaded Connection.5 (3.3) 3.8 (8.) 9. (.) Approx. Mass kg (lbs.) Mounting.5 (5.5) 3.9 (8.) 7.5 (.5) Restrictors One Way Restrictors SRCT-3-/8/9-3-/9 3 (7.9).5 (3.3).5 (5.5) One Way Restrictor SRCT--/8/9 --/9 85 (.) 5 (33) 3.8 (8.) 3.9 (8.) SRCT--/8/9 --/9 3 (.7) 9. (.) 7.5 (.5) Rated flow stands for approximate flow rate when the pressure drop between inlet and outlet ports of the valve in fully opened condition becomes.3 MPa ( PSI) maximum at fluid's specific gravity of.85 and kinematic viscosity of mm /s (98 SSU). Yuken can offer flanged connection valves described below. For details, contact us. SRF/SRCF-- SRF/SRCF--9 SRF/SRCF-- SRF/SRCF--9 Rated Flow () 3 (.7) (3) Max. Operating Pressure MPa (PSI) 5 (33) Model Number esignation F- SR T -3 - Special Seals Series Number Type of Mounting Valve Size esign Number esign Standards F: Special Seals for Phosphate Ester Type Fluids (Omit if not required) SR: Restrictor SRC: One Way Restrictor T: Threaded Connection G: Mounting T: Threaded Connection G: Mounting 3 3 3 3 None: Japanese Std. "JIS" 8: European esign Std. 9: N.American esign Std. None: Japanese Std. "JIS" & European esign Std. 9: N.American esign Std. None: Japanese Std. "JIS" 8: European esign Std. 9: N.American esign Std. None: Japanese Std. "JIS" & European esign Std. 9: N.American esign Std. 99
Attachment Mounting Bolts Valve Model Numbers /-3 /- /- Socket Head Cap Screw Japanese Std. "JIS" and European esign Std. N. American esign Std. M 5 Lg. 3/8- UNC -3/ Lg. M Lg. 3/8- UNC Lg. M 55 Lg. 3/8- UNC -/ Lg. Qty. Instructions Flow Adjustment Slacken the lock nut and turn the flow adjustment handle anti-clockwise to throttle flow. After achieving satisfactory performance tighten the lock nut. Valve Model Numbers -3 - - Japanese Standard "JIS" CRGM-3- CRGM-3X- CRGM-- CRGM-X- CRGM-- CRGM-X- Thread Size Rc 3/8 Rc / Rc 3/ Rc Rc -/ Rc -/ European esign Standard CRGM-3-8 CRGM-3X-8 CRGM--8 CRGM-X-8 CRGM--8 CRGM-X-8 Thread Size 3/8 BSP.F / BSP.F 3/ BSP.F BSP.F -/ BSP.F -/ BSP.F N. American esign Standard CRGM-3-9 CRGM-3X-9 CRGM--9 CRGM-X-9 CRGM--9 CRGM-X-9 Thread Size 3/8 NPT / NPT 3/ NPT NPT -/ NPT -/ NPT Approx. Mass kg (lbs.). (3.5). (3.5). (5.3) 3. (.).8 (.) 5.7 (.) 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 common with right angle check valves. For dimensions, see page. SRT/SRCT-3-/8/9 SRT/SRCT--/8/9 SRT/SRCT--/8/9 IMENSIONS IN MILLIMETRES (INCHES) INC. C K 5 (.) ia. L 9(.75) Hex. "N" Thd. H Fully Extended F J "E" ia. "N" Thd. SRT/SRCT-3- SRT/SRCT-3-8 SRT/SRCT-3-9 SRT/SRCT-- SRT/SRCT--8 SRT/SRCT--9 SRT/SRCT-- SRT/SRCT--8 SRT/SRCT--9 imensions mm (Inches) C E F H J K L 7 (.83) (3.9) 38 (5.3) 3 (.) (.97) 9 (.7) (.73) 58 (.8) 8 (3.5).5 (5.93) 8 (7.9) 7 (8.9) 53.5 (.).5 (.) 8 (3.39) 38 ia. (.) Sq. (.) 8 Sq. (3.5) (.8) (.5) 8 (3.3) (.87) 3 (.) (.57) Thd. Size "N" Thd. Rc 3/8 3/8 BSP.F 3/8 NPT Rc 3/ 3/ BSP.F 3/ NPT Rc -/ -/ BSP.F -/ NPT 3
FLOW CONTROLS /-3-/9 Mounting surface: ISO578-AG---A 9(.75) Hex. Fully Extended.5(5.93) INC..9 (.9) 5 (.) ia. 3 (.) Locating Pin (.) ia. 3 (.) (.3) ia. Through 7.5(.9) ia. Spotface Places.7 (.) 33.3 (.3).7 (.3) 9 (3.5) 3 (.8) (.5) (.) Mounting Surface (s Furnished) Note: For dimensions of the valve mounting surface, see the dimensional drawing (P.) of the sub-plate used together. Restrictors One Way Restrictors /--/9 IMENSIONS IN MILLIMETRES (INCHES) Mounting surface: ISO578-AH-8--A INC. 9(.75) Hex. 5 (.) ia. 37 (.) Locating Pin (.) ia. 3.5 (.) Fully Extended 8(7.9).3 (.37) (.3) ia. Through 7.5(.9) ia. Spotface Places.3 (.) 39.7 (.5) 79. (3.3) (.) 35 (.38) 3 (.) 79 (3.) (.) Mounting Surface (s Furnished) Note: For dimensions of the valve mounting surface, see the dimensional drawing (P.) of the sub-plate used together. 3
/--/9 Mounting surface: ISO 578-AJ---A IMENSIONS IN MILLIMETRES (INCHES) 9(.75) Hex. INC. 5 (.) ia. (.5) Locating Pin (.) ia. (.73). (.) Fully Extended 7(8.9) 8. (3.3) (.3) ia. Through 7.5(.9) ia. Spotface Places. (.) 8. (.9) 9.8 (3.8) 9 (.9) (.57) (.) 9 (3.5) (.) Mounting Surface (s Furnished) Note: For dimensions of the valve mounting surface, see the dimensional drawing (P.) of the sub-plate used together. 3
FLOW CONTROLS Metred Flow vs Adjustment Handle Revolutions Hydraulic Fluid: Viscosity 3 mm /s ( SSU), Specific Gravity.8 P: ifferential Pressure MPa (PSI) -3, -3 P=5 (33) P= (9) P= (3) 5 8 3 P= () P=7 () P= (58) P= (9) P= (5) P=.5 (7) 3 5 7 Fully Open Adj. Handle Position (Number of turns) -, - P= (3) P= (9) P= () P=5 (33) P=7 () 3 5 8 P= (58) 5 P= (9) P= (5) P=.5 (7) 5 3 5 7 8 9 Fully Open Adj. Handle Position (Number of turns) -, - 9 8 7 3 P= (3) P= (9) P= () P=5 (33) 3 3 P=7 () P= (58) P= (9) P= (5) P=.5 (7) 8 Fully Open Adj. Handle Position (Number of turns) Restrictors One Way Restrictors Pressure rop Hydraulic Fluid: Viscosity 3 mm /s ( SSU), Specific Gravity.8-3, -3 Pressure rop MPa PSI..3 3.. Free Flow Spool Closed Controlled Flow Spool Fully Open 3 5 -, - Pressure rop PSI 3 MPa..3.. Free Flow Spool Closed Controlled Flow Spool Fully Open 8 Pressure rop PSI MPa 7.5..3 3.. 8 -, - Free Flow Spool Closed Controlled Flow Spool Fully Open 3 3 8 9 Applicable only for one way restrictor (Model No. SRC* ) 5 5 5 3 33
List of seals SRT/SRCT-3-/8/9 SRT/SRCT--/8/9 SRT/SRCT--/8/9 7 9 5 5 For SRCT 3 8 7 3 8 List of Seals List of Seal Kits Item 3 Name of Parts SRT SRCT -3 SO-NB-P5 SO-NB-P Part Numbers SRT SRCT - SO-NB-P SO-NB-P. SRT SRCT - SO-NB-P9 SO-NB-P3 Qty. Valve SRT/SRCT-3 SRT/SRCT- SRT/SRCT- Seal Kit Numbers KS-SRT-3- KS-SRT-- KS-SRT-- Note: When ordering the seals, please specify the seal kit number from the table right. /-3-/9 /--/9 /--/9 7 8 9 For 3 5 9 5 7 3 8 List of Seals List of Seal Kits Item 3 5 Name of Parts -3 SO-NB-P5 SO-NB-P SO-NB-P8 Part Numbers - SO-NB-P SO-NB-P. SO-NB-P8 - SO-NB-P9 SO-NB-P3 SO-NB-P3 Qty. Valve /-3 /- /- Seal Kit Numbers KS--3- KS--- KS--- Note: When ordering the seals, please specify the seal kit number from the table right. 3