Flow Control Valves / Flow Control and Check Valves

Transcription

1 LOW CONTROLS These valves are pressure and temperature compensating type valves and maintain a constant flow rate independent of change in system pressure (load) and temperature (viscosity of the fluid). They control flow rate of the hydraulic circuit and eventually control speed of the actuator precisely. Valves with an integral check valve allow a controlled flow and reverse free flow. Repeated resetting can be made easily with a digital readout. Specifications Model Numbers * - * --3- * -3 * -3-- * -3 * -6-- * -3 * --5- * -3 * Model Number esignation C Series Number : low Control Valves C: low Control and Check Valves Max. Metred low Capacity () (.6) 8(.) 3(7.9) (33) (66) 5(3) G N - Type of Mounting G: Sub-plate Mounting Min. Metred low Capacity ().(.5) {. (.)}.5 (.3). (.53) (.53) (.6) The figures in the brace are for pressures above 7 ( ). - Special Seals : Special Seals for Phosphate ster Type luids (Omit if not required) Valve Size 3 6 Max. Operating Pressure () (3 ) (35) Max. Metred low Capacity () : (.6) 8 : 8 (.) 3 : 3 (7.9) : (33) : (66) 5 : 5 (3) esign Standards: None...apanese Standard "IS" and uropean esign Standard 9...N. American esign Standard Approx. Mass kg (lbs.).3 (.9) 3.8 (8.) 7.9 (7.) 3 (5.7) 5 (5) Pres. Compensator Stroke Adjustment N: Applicable only for Pres. Compensator Stroke Adjustment (Option - Omit if not required) esign Number * esign Standards Refer to low Control Valves low Control and Check Valves Attachment Mounting Bolts Valve Model Numbers /- apanese Std. "IS" & uropean esign Std. M5 55 Lg. Socket ead Cap Screw N. American esign Std. No.- UNC -/ Lg. Qty. Graphic Symbols /- M8 5 Lg. 5/6-8 UNC Lg. /-3 M 75 Lg. 3/8-6 UNC 3 Lg. /-6 M6 3 Lg. 5/8- UNC 5 Lg. /- M 6 Lg. 3/- UNC 6-/ Lg. Option Pres. compensator stroke adjustment Can reduce jumping at the start of the actuator. 77

2 Sub-plate Valve Model Numbers apanese Standard "IS" Sub-plate Model No. M-- M-- M-- M-Y- M-3- M-3- M-3Y- M-3Z- M-6- M-6Y- M-6Z- M-Y- Thread Size Rc / Rc / Rc 3/8 Rc / Rc 3/8 Rc / Rc 3/ Rc Rc Rc -/ Rc -/ -/, uropean esign Std. Sub-plate Model No. M--8 M--8 M--8 M-Y-8 M-3-8 M-3-8 M-3Y-8 M-3Z-8 M-6-8 M-6Y-8 M-6Z-8 M-Y- Thread Size / BSP. / BSP. 3/8 BSP. / BSP. 3/8 BSP. / BSP. 3/ BSP. BSP. BSP. -/ BSP. -/ BSP. -/, N. American esign Std. Approx. Sub-plate Thread Mass Model No. Size kg (lbs.) M--9 M--9 M--9 M-Y-9 M-3-9 M-3-9 M-3Y-9 M-3Z-9 M-6-9 M-6Y-9 M-6Z-9 M-Y-9 / NPT / NPT 3/8 NPT / NPT 3/8 NPT / NPT 3/ NPT NPT NPT -/ NPT -/ NPT -/,.8 (.8).3 (5.).3 (5.) 3. (6.8) 3.9 (8.6) 3.9 (8.6) 5.7 (.6) 5.7 (.6).5 (7.6) 6 (35.3) 6 (35.3) 37 (8.6) 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. M-Y is special type sub-plate to be used with pipe flange. When ordering M-Y, specify pipe flange kit in addition to M-Y referring to 3 pipe flanges show on page 8. Instructions 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. or details, please refer to the performance curves. ree flow Check valve pressure drops vary with flow rates. If models with check valves are used, see free flow pressure drop characteristics. low adjustment [ * G-] Loosen the locking screw and turn the flow adjustment dial clockwise for increase, and anti-clockwise for decrease. The dial makes about revolutions from zero to full flow and the valve opening is indicated on the revolution indicator. (Refer to characteristics of "Metred low vs. ial Position"). After flow adjustments, tighten the locking screw. [ * G-, 3, 6, ] Loosen the locking screw and turn the flow adjustment handle clockwise for increase, and anti-clockwise for decrease. Open condition is indicated in digital-scale in built-in revolution indicator (Refer to the characteristics of "Metred low vs. ial Position"). After flow adjustments, tighten the locking screw. Line filter To carry out flow adjustments by as small degree as (.53 ) or less, be sure to use a line filter of µm or finer and install it near the valve inlet. 78

3 LOW CONTROLS /--* - * -/9 Revolution Indicator Locking Screw.5(.) ex. Soc. Tightening Torque:. -.3 Nm (. -.7 IN. lbs.) 5.5(.) ia. Through 9(.35) ia. Spotface 7.5 (.3) Controlled low Outlet or Reversed ree low Inlet Port INC. low Adjustment ial.5 (.89) ia. ully xtended 8.5(3.) 66 (.6) 5 (.).5 (.) /--3-* -3/39 /-3--* -3/39 Pressure Compensator Stroke Adjustment (Only for -- -N ) 3(.5) ia. 6.5 (.65) 3 (.) 3 (.69) 58 (.8) Controlled low Inlet or Reversed ree low Outlet Port 7.5 (.3) 3(.) 5.5(.) ia IMNSIONS IN MILLIMTRS (INCS) ully xtended 8(3.3) 53.5 (.) 5 (.77) (.73) 7 (.67) 5 (.) Locating Pin (.6) ia. Mounting Surface (s urnished) Mounting surface: G-: ISO 663-AB-6--B G-3: ISO 663-A-7--A low Control Valves low Control and Check Valves Locking Screw (.8) ex. Soc. 6 (.8) ia. ully xtended "C" Controlled low Inlet or Reversed ree low Outlet Port Pressure Compensator Stroke Adjustment (Only for - - -N ) Q S T U "V" ia. Through "W" ia. Spotface Revolution Indicator 3 (.55) ia. N L P 6 (.) Locating Pin 6(.) ia. "Y" Places Controlled low Outlet or Reversed ree low Inlet Port Model No C 6 (.57) 5 (5.7) 96 (3.78) (.9) 76. (3.).6 (.) 38. (.5) 5.8 (.) 9.9 (.39).7 (.6) low Adjustment andle.5 (.) (.9) 8.6 (3.).6 (.) INC. imensions mm (Inches) L.3 (.7) 6.8 (.3) N (.9) 9.8 (.7) P 9.9 (.39).7 (.6) Q 3 (.8) 5 (5.98) S 69 (.7) 98 (3.86) T (.57) 6 (.5) U 3 (.9) (.6) V 8.8 (.35) (.3) Mounting Surface (s urnished) W (.55) 7.5 (.69) 39 (.5) 63 (.8) Y 79

4 /-6--* -3/39 /--5-* -3/39 Mounting surface: G-6: ISO 663-AP-8--A IMNSIONS IN MILLIMTRS (INCS) Locking Screw (.8) ex. Soc. "" ia. Through "Y" ia. Spotface low Adjustment andle 6 (.8) ia. ully xtended "C" N Controlled low Inlet or Reversed ree low Outlet Port Pressure Compensator Stroke Adjustment (Only for - - -N ) S T a U INC. Locating Pin "V" ia. Controlled low Outlet or Reversed ree low Inlet Port Z Revolution Indicator L P Q W Only for low Control and Check Valves ( - - -N) Mounting Surface (s urnished) Model No C 98 (7.8) 67 (.5) 8 (7.9) (9.6) 6. (5.75) 96.9 (7.75) 73 (.87) 98.5 (3.88) 7 (.67) 3.5 (.93) 7 (6.85) 8 (8.98) 33. (5.) 77.8 (7.) L 99 (3.9).5 (5.69) imensions mm (Inches) N (.73) 6 (.) P.3 (.8) (.98) Q 8 (7.) (8.3) S 3 (5.) 6 (6.3) T 5 (.3) 37 (5.39) U 65 (.56) 85 (3.35) V 6 (.63) 8 (.7) W 7 (.8) (.39) 7.5 (.69).5 (.85) Y 6 (.) 3 (.6) Z (.39) 7.5 (.3) a 3 (.6) 35 (5.3) 8

5 LOW CONTROLS M--/8/9 5.5(.) ia. Through 9(.35) ia. Spotface 8.5 (.73) 5 (.) 36 (.) 9 (.35) "A" Thd. (rom Rear) "B" Thd. "C" eep 5(.) ia. 8(.3) eep 6 (.) (.87) 7 (.67) 6 (.63) 6.5 (.65) 3.5 (.36) 3 (.69) (.55) 55 (.7).5 (.9) 6 (.) 63 (.8) 76 (.99) 88 (3.6) 6(.) ia. M-* -/8/9 Sub-plate Model Numbers M-- M--8 M (.35) ia. Through (.55) ia. Spotface 3.8 (.9).5 (.5) "A" Thd. Rc / / BSP. / NPT 3.9 (.6) 79. (3.3) 76. (3.) 5 (.3) 9.5 (.37) "B" Thd. C M5 M5 No.- UNC (.55) (.55) 5 (.59) (.55) 3.5 (.36) 3. (.8) 3.5 (.36) "" ia. "B" Thd. "C" eep 7(.8) ia. (.39) eep IMNSIONS IN MILLIMTRS (INCS) 6 (.63) 5 (.59) low Control Valves low Control and Check Valves 8.6 (3.) 5. (.6). (.) 78 (3.7) 6 (.7) (.87) (.39) 96 (3.78) (.7) (5.5) "A" Thd. (rom Rear) Sub-plate Model Numbers "A" Thd. "B" Thd. C M-- M--8 M--9 M-- M--8 M--9 M-Y- M-Y-8 M-Y-9 Rc / / BSP. / NPT Rc 3/8 3/8 BSP. 3/8 NPT Rc / / BSP. / NPT M8 5/6-8 UNC M8 5/6-8 UNC M8 5/6-8 UNC (.55) 8 (.7) (.55) 8 (.7) (.55) 8 (.7). (.3).7 (.6). (.3). (.55) 5. (.6). (.55). (.55) 5. (.59). (.55) 5 (.3) 5 (.). (.) (.55) (.98) 35 (.38) 8

6 M-3* -/8/9 "A" Thd. (rom Rear) 33. (.3).8 (.3).(.3).6(.) 75(.95).6 (.8). (.56) "" ia. "B" Thd. "C" eep (.79) ia. 5(.59) eep (.79) 9(.75) 86.5 (3.) 8.6 (.3). (.).6 (.) 3 (5.).5(.85) (.3) (.9) 6(5.75) 68(6.6) (.3) ia. Through 7.5(.69) ia. Spotface Sub-plate Model Numbers "A" Thd. "B" Thd. C M-3- M-3-8 M-3-9 M-3- M-3-8 M-3-9 M-3Y- M-3Y-8 M-3Y-9 M-3Z- M-3Z-8 M-3Z-9 Rc 3/8 3/8 BSP. 3/8 NPT Rc / / BSP. / NPT Rc 3/ 3/ BSP. 3/ NPT Rc BSP. NPT M 3/8-6 UNC M 3/8-6 UNC M 3/8-6 UNC M 3/8-6 UNC 8 (.7) (.83) 8 (.7) (.83) 8 (.7) (.83) 8 (.7) (.83). (.55) 5. (.59). (.55) 7.5 (.69) 9. (.75) 7.5 (.69) 3. (.9) 75 (.95) 7 (.76).6 (.8).6 (.). (.) 6. (.63) 86.5 (3.) 8.5 (3.) (.98) (.57) M-6* -/8/9 7.5(.69) ia. Through 6(.) ia. Spotface.3 (.8) 5 (.5).6 (.6) 6.(5.75).(5.69).8(.3). (.87) 9(.) ia. "B" Thd. "C" eep 7(.67) ia. (.39) eep (.9) IMNSIONS IN MILLIMTRS (INCS) L 33. (5.).8 (.3).3 (.63).7 (.5) 6 (.96) 7 (6.85) 35(.38) 9(.75) 8(7.9) (8.35) (9.8) "A" Thd. (rom Rear) Sub-plate Model Numbers "A" Thd. "B" Thd. C L M-6- M-6-8 M-6-9 M-6Y- M-6Y-8 M-6Y-9 M-6Z- M-6Z-8 M-6Z-9 Rc BSP. NPT Rc -/ -/ BSP. -/ NPT Rc -/ -/ BSP. -/ NPT M6 5/8- UNC M6 5/8- UNC M6 5/8- UNC 3 (.8) 35 (.38) 3 (.8) 35 (.38) 3 (.8) 35 (.38).8 (.3) 99 (3.9). (.87) 3 (.3).8 (.3) 99 (3.9) 8 (.7) 3 (.9) 5 (.77) 6 (.36) 35 (.38) (.57) 3 (.3) 39 (.5) 8

7 LOW CONTROLS M-Y-/9 "A" Thd. 3(.6) eep 77.8 (7.).5 (5.69) 36 (.) (.9) 9 (.) 7.3 (.68) 68.5 (.7).6 (.6) 98. (7.8) 96.9 (7.75).5 (5.69) (5.5) 3.9 (.37) 73 (.87) 73 (.87) (.3) IMNSIONS IN MILLIMTRS (INCS) 73 (.87) 8 (8.98) 3.5(.7) ia. "B" Thd. "C" eep 8 Places (rom Rear) (.79) ia. 5(.59) eep (9.8) 8 (3.5) 5 (.97) 8 (.89) (3.9) SQ. Pipe lange.5(.85) ia. Through 3(.6) ia. Spotface 5 (.77) (.98) 73 (.87) (9.6) 8 (.8) 33 (3.5) Sub-plate Model Numbers M-Y- M-Y-9 "A" Thd. M 3/- UNC 8(.89) ia. "B" Thd. M6 5/8- UNC C 3 (.6) 3 (.3) low Control Valves low Control and Check Valves 83

8 Metred low vs. ifferential Pressure Metred low vs. Viscosity mm /s ifferential Pressure SSU Viscosity mm /s ifferential Pressure SSU Viscosity mm /s 3 ifferential Pressure SSU Viscosity ifferential Pressure mm /s SSU Viscosity mm /s 3 ifferential Pressure SSU Viscosity 8

9 LOW CONTROLS Metred low vs. ial Position ial Position andle Position andle Position andle Position Min. Required Pressure ifference andle Position low Control Valves low Control and Check Valves ifferential Pressure ifferential Pressure ifferential Pressure ifferential Pressure ifferential Pressure

10 Pressure rop for Reversed ree low ydraulic luid: Viscosity 35 mm /s (6 SSU), Specific Gravity.85 Pressure rop P Pressure rop P ree low - Throttle Closed Throttle ully Open (--) -3 Throttle Closed Throttle ully Open Throttle ully Open (--8) 5 5 Pressure rop P Pressure rop P Throttle Closed Throttle ully Open ree low -6 Throttle Closed Throttle ully Open ree low 6 8 ree low Pressure rop P Throttle Closed Throttle ully Open ree low or any other viscosity, multiply the factors in the table below. Viscosity mm /s SSU actor or any other specific gravity (G'), the pressure drop ( P') may be obtained from the formula below. P'= P (G'/.85) 86

11 LOW CONTROLS List of seals --* - * -/ Section - (- Type) Y /--3-* -3/39 /-3--* -3/39 Y Section Y-Y (- Type) (/-- Section - *-N Type) List of Seals Item Name of Parts Part Numbers Qty. 3 SO-NA-P SO-NB-P9 SO-NB-P 6 SO-NB-P6 7 SO-NB-P 3 SO-NA-P5 38 SO-NB-P7 Note: When ordering the seals, please specify the seal kit number from the table below. List of Seal its Valve Model Numbers Seal it Numbers - - S--- S--- low Control Valves low Control and Check Valves (- Type) (- Type) Section (/- - -N Type) List of Seals Item Name of Parts Back Up Ring - SO-NA-P SO-BB-P SO-NB-P5 SO-NB-PA SO-NB-P SO-NB-P SO-NB-P8 SO-NB-G Part Numbers -3 SO-NA-P SO-BB-P SO-NB-P5 SO-NB-P6 SO-NB-P8 SO-NB-P SO-NB-P8 SO-NB-G35 Note:When ordering the seals, please specify the seal kit number from the table right. Qty. List of Seal its Valve Model Numbers Seal it Numbers S---3 S---3 S--3-3 S

12 /-6-- * -3/39 /--5- * -3/ Section - (-6/ Type) Section - (- Type) Section - (-6 Type) List of Seals Item Name of Parts Back Up Ring -6 SO-NA-P SO-BB-P SO-NB-P SO-NB-P3 SO-NB-P3 SO-NB-P5 SO-NB-A Part Numbers - SO-NA-P SO-BB-P SO-NB-P3 SO-NB-P8 SO-NB-P5 SO-NB-G75 SO-NB-P3 Note: When ordering the seals, please specify the seal kit number from the table right. Qty. 3 List of Seal its Valve Model Numbers Seal it Numbers S--6-3 S--6-3 S---3 S