EMechanically Operated Directional Valves

Transcription

1 E DIRECIONL CONROLS Cam Operated Directional Valves hese valves may be used to shift the direction of oil flow by depressing the spool by way of a cam. Specifications Max. Operating Max. -Line Max. Flow pprox. Mass kg (lbs.) ressure ressure L/min (U.S.GM) hreaded Connection Mounting Ma (SI) Ma (SI) DC ype DCG ype DC-- - DCG-- - (.9) (5) (). (.). (.) DC-- -5 DCG-- -5 (6.) 5 (6) (5).5 (9.9).8 (8.) Max. flow indicates the ceiling flow which does not affect the normal function (changeover) of valves. Model Number Designation F- Special Seals F: Special seals for phosphate ester type fluids (Omit if not required) DC - - -R - No. of Series ype of Valve Spool-Spring Spool Valve Roller osition Design Number Connection Size rrangement ype Number osition DC: Cam Operated Directional Valve : hreaded Connection G: Mounting : Spring Offset 8 None Normal osition R Mounting Surface Y DC - only 5 5 Design Standards None: Japanese Standard "JIS" 8: European Design Standard 9: N. merican Design Standard None: Japanese Standard "JIS" & European Design Standard 9: N. merican Design Standard s Valve Model Numbers DCG- DCG- Japanese Standard "JIS" DSGM-- DSGM-X- DSGM-Y- DSGM-- DSGM-X- DSGM-Y- hread Size Rc /8 Rc / Rc /8 Rc /8 Rc / Rc / European Design Standard DSGM--8 DSGM-X-8 DSGM--8 DSGM-X-8 DSGM-Y-8 hread Size /8 S.F / S.F /8 S.F / S.F / S.F 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. N. merican Design Standard DSGM--9 DSGM-X-9 DSGM-Y-9 DSGM--9 DSGM-X-9 DSGM-Y-9 hread Size /8 N / N /8 N /8 N / N / N pprox. Mass kg (bs.).8 (.8).8 (.8).8 (.8). (6.6). (6.6). (.) 5

2 Mounting olts Socket head cap screws in the table below are included. Model Numbers DC- DCG- DCG- Japanese Standard "JIS" European Design Standard Socket Head Cap Screw N. merican Design Standard M5 5 Lg. No. - UNC -/ Lg. M5 5 Lg. No. - UNC -/ Lg. M6 5 Lg. /- UNC -/ Lg. Qty. ightening orque Nm (in. bs) 5- (-6) 5- (-6) -5 (5-) Direction of Oil Flow for Roller osition Model Numbers Graphic Symbols Roller osition and Direction of Oil Flow Roller Stroke from Offset osition mm(inches) Extended(Offset) Depressed DC DCG -- ll ports blocked.8 (.5).6 (.8) (.) DC DCG --.8 (.5) ll ports open.6 (.8) (.) DC DCG --8 & ports blocked.8 (.5) & ports blocked (.) DC DCG -- ll ports blocked..8 (.) (.5) (.6) DC DCG -- ll ports open. (.8). (.5) (.6) DC DCG --8 & ports blocked.6 (.) ll ports blocked. (.85) & ports blocked (.6) Instructions Valve ype "8" ank port "" functions as a drain port. Directly connect it to the reservoir. [Max. allowable back pressure.5 Ma (5 SI)]. ctuation Force ctuation Force bf N 5 5 Force Ma 5 5 SI -Line ack ressure 6

3 E DIRECIONL CONROLS ressure Drop ressure drop curves based on viscosity of 5 mm /s (6 SSU) and specific gravity of.85. DC DCG - ressure Drop SI 5 5 Ma..8. L /min DC-- DC-- DC--8 DCG-- DCG-- DCG--8 ressure Drop Curve No. 6 8 Flow Rate U.S.GM DC DCG - SI 5 Ma.5 ressure Drop DCG-- DCG-- DCG--8 ressure Drop Curve No L /min Flow Rate U.S.GM For any other viscosity, multiply the factors in the table below. mm /s Viscosity SSU Factor For any other specific gravity (G'), the pressure drop ( ') may be obtained from the formula below. ' = (G'/G) where, is a value on the above chart and G is.85.

4 DC-- - -/8/9 5.5 (.) Dia. hrough (.) C' bore places 8.5 (.) 5.5 (.) 8.5 (.) 9 (.5).5 (.59) 9 (.) 9 (.5) ressure ort "" "C" hd. Cylinder ort "" "C" hd..5 (.).5 (.) 55.8 (.).5 (.).5 (.88).5 (.8) 8 (.89) Cam and Roller ravel Height of Cam (.) Max.5 osition "Y" (.9) (.6) Dia.Roller 5 (.9) (.) 8.5 (.5) ank ort "" "C" hd. Cylinder ort "" "C" hd. (.8) Cam Max. 66 (.6) osition "R" Normal osition (.6).5 (.5) 65 (.56) 5 (.98) 8 (.5) 9 (.9) Note: When mounting the valve, be sure to use two mounting holes marked with Stroke (.) Extended (Offset) DC DC DC Depressed "C" hd. Rc /8 /8 S.F /8 N DC /58/59 Cylinder ort "" "C" hd. Chain line indicates the Model DC-- -R. (.8) 56.8 (.) 5 (.9) (.9) 5 (.) (.) (.6) ressure ort "" "C" hd. (.8) Dia. hrough (.) C' bore places (.) DIMENSIONS IN MILLIMERES (INCHES) Cam and Roller ravel 6. (.8) (.6) 6 (.8) (.6) Height of Cam (.8) Max.5 8 (.) Dia.Roller. (.89) 58.6 (6.) (.8) Cylinder ort "" "C" hd. ank ort "" "C" hd. Cam 6 (.) 9 (.5) 9 (.6).8 (.86) 6.8 (.6) (.6) 5. (.9) 85. (.6) (.8) Extended (Offset) DC DC DC Depressed 8. (.) Max. Stroke "C" hd. Rc /8 /8 S.F /8 N 8

5 E DIRECIONL CONROLS DCG /9 Mounting Surface: ISO ---- Cylinder ort "" 5.5 (.) 8.5 (.).5 (.59) ressure ort "" 5.5 (.6) 55.8 (.) 8.5 (.) (.).5 (.).5 (.8) 8 (.89).5 (.) 5 (.6) Dia. Roller (.9) (.) ank ort "" Cylinder ort "" 5.5 (.) Dia. hrough (.) C' bore places osition "Y" osition "R" Normal osition (.6) 5 (.98) 8 (.5) 9 (.9).5 (.5) 65 (.56) Mounting Surface (s Furnished) DIMENSIONS IN MILLIMERES (INCHES) Mounting Surface: ISO -C-5-- Chain line indicates the Model DCG-- -R Cylinder ort "" (.8) 56.8 (.) 5 (.9) ressure ort "" 5 (.) Cylinder ort "" (.8) Dia. hrough (.) Dia. Spotface places (.) 6. (.8).5 (.8) 6 (.8) (.6) 8 (.) Dia. Roller. 5.8 (.89) (.) ank ort "" 58.6 (6.) 6 (.) (.6) 5. (.9) 59 (.) (.8) (.) Note: For the cam and roller travel, see DC- in the previous page. Note: For the valve mounting surface dimensions, see the dimensional drawing of the sharable sub-plate in page 56. DCG /59 9 (.5) 9 (.6) Mounting Surface (s Furnished). lthough the tank port is shown on the left in our sub-plate, either may be used. Note: For the cam and roller travel, see DC- in the previous page. Note: For the valve mounting surface dimensions, see the dimensional drawing of the sharable sub-plate in page. 9

6 List of Seals DC-- - -/8/9 DCG-- - -/ List of Seal Kit No. Item Name of arts art Numbers SO-N-5 Quantity DC- DCG- Valve Mdel Numbers DC-- - -/8/9 DCG-- - -/9 Seal Kit Numbers KS-DC-- KS-DCG-- SO-N-8 5 SO-N-9 Note: When ordering the o-rings, please specify the seal kit number from the table right. DC /58/59 DCG / List of Seal Kit No. Item Name of arts art Numbers SO-N- SO-N-6 SO-N- Quantity DC- DCG- ack Up Ring SO-E-6 Note: When ordering the seals, please specify the seal kit number from the table right. 5 Valve Mdel Numbers DC /58/59 DCG /59 Seal Kit Numbers KS-DC--5 KS-DCG--5 5