MCHNICLLY ORD VLVS Rotary ype : DR/DRG- Cam Operated : DC/DCG-, hreaded Connection/ Mounting General Information Up to 5 Ma (6 SI), L/min (6. U.S.GM) ub. C-6 hese valves are chiefly used to shift the pilot circuit. Rotary ype Directional s and Cam Operated ype Directional s are available. Rotary ype Directional s... age hese valves are used to rotate the spool either manually or by way of cam and shift the direction of oil flow. he detented mechanism incorporated in these valves prevents the valve from being changed over by itself due to vibrations or any other shocks.... age 6 hese valves may be used to shift the direction of oil flow by depressing the spool by way of a cam. Hydraulic Fluids Fluid ypes ny type of hydraulic fluid listed in the table below can be used. ype of Fluids etroleum ase Oils Synthetic Fluids Water Containing Fluids Use fluids equivalent to ISO VG or VG6. Remarks Use phosphate ester or polyol ester type fluid. When phosphate ester type fluid is used, prefix "F-" to the model number because the special seals (fluororubber) are required to be used. Use water-glycol fluids or W/O emulsion type fluids. Note: For use with hydraulic fluids other than those listed above, please consult your Yuken representatives in advance. Recommended Viscosity and Oil emperatures Viscosity ranging between 5 to mm /s ( to 8 SSU) Oil temperatures between 5 to+ C (5 to 6 F) Use hydraulic fluids which satisfy the recommended viscosity and oil temperatures given above. Control of Contamination Due caution must be paid to maintaining control over contamination of the hydraulic fluids which may otherwise lead to breakdowns and shorter the life of the valve. lease maintain the degree of contamination within NS 68-Grade. Use 5 μm or finer line filter. No.
Rotary ype Directional s DR/DRG- hreaded Connection / Mounting Specifications / Model Number Designation / Others Specifications hreaded Connection DR-- D - Model Number Designation G - F- Special Seals F: Special seals for phosphate ester type fluids (Omit if not required) DR Series Connection DR: Rotary ype Directinal ype of Mounting : hreaded Connection G: Mounting Mounting DRG-- D - Rated Flow L/min (U.S.GM) 6 (.) Max. Operating ressure Ma (SI) () Max. -Line ressure Ma (SI) () When a back pressure of more than Ma (5 SI) is generated in the tank port, be sure to use xternal Drain ype. DR ype DRG ype. (.). (.5) - No. of osition D Spool-Spring rrangement D: No-spring Detented Spool ype - Operation ype : Reversing Dog : Reversing Dog & Manual C: Manual -R Drain Connection None: Intrenal Drain R: xternal Drain Note: When selecting the Model type, be sure to give the model number from the following Graphic Symbols. No combinations other than those in the table below are allowed. - Design Number pprox. Mass kg (lbs.) Design Standards None: Japanese Std. "JIS" 8: uropean Design Std. 9: N. merican Design Std. None: Japanese Std. "JIS" & uropean Design Std. 9: N. merican Design Std. Graphic Symbols No. of osition -osition ype -osition ype Operation ype Reversing Dog Operation Reversing Dog & Manual Operation Manual Operation Manual Operation Graphic Symbols Model No. DR --D- DR --D- DR --D-C DR --D-C Instructuions # # # # # # # # # Changeover orque When the pressure of pressure port "" and cylinder port "" (or "") is set to Ma ( SI), the valve changeover torque will be as right side table: -Way directional valves e sure to use the xternal Drain ype of spool type "" and plug the tank port. Changeover orque ank ort ack res. Ma (SI) (5) orque Nm (in. bs.). (8.9).8 (.5) No.
s Drain Connection For Internal Drain For xternal Drain Model Numbers ressure Drop DRG- SI 6 Japanese Standard "JIS" DRGM-- DRGM-X- DRGM--R- DRGM-X-R- hread Rc / Rc /8 Rc / Rc /8 s / ressure Drop uropean Design Standard DRGM--8 DRGM-X-8 DRGM--R-8 DRGM-X-R-8 Socket Head Cap Screw (5 cs.) Japanese Standard "JIS" N. merican Design Standard uropean Design Standard M8 5 Lg. 5/6-8 UNC -/ Lg. Hydraulic Fluid: Viscosity 5 mm /s (6 SSU), Ma Specific Gravity.85.... 8 6 Flow Rate Rotary ype Directional s DR/DRG- L/min U.S.GM hread / S.F /8 S.F / S.F /8 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. Mounting olts ype D D N.merican Design Standard DRGM--9 DRGM-X-9 DRGM--R-9 DRGM-X-R-9 he Mounting ype s (DRG-) only are furnished with the following mounting bolts. ressure Drop ressure Drop Curve No. hread / N /8 N / N /8 N pprox. Mass kg (bs.).9 (.). For any other viscosity, multiply by the factors in the table below. mm /s 5 5 6 8 9 Viscosity SSU 98 86 8 6 Factor.8.8.96..9..9.... For any other specific gravity (G'), the pressure drop ( ') may be obtained from the formula below. ' = (G'/.85) DR-- D - -/8/9 Cylinder ort "" 6.5 Cylinder ort "" DR-- D - - DR-- D - -8 DR-- D - -9 6 6 "C" hd. Rc / / S.F / N Drain ort "Y" "C" hd. xternal drain type only has drain port. ank ort "" 6.5 8(.5) Dia. 6(.99) Dia. ressure ort "" 5 5 5.5 (5.96) 56 (.) (.8) 8(.5) Dia. ype "" : Reverseing Dog and Manual Operation ype "" : Reversing Dog Operation "C" hd. laces 58.5 (.) (.69) R8(R.5) 5.(.) 6(.6) 8(.) Dia. 5(.9) Dia. osition # 6 (.) R (R.) (5.8) R8 (R.5) 5 (.9) osition # 5 ype "C" : Manual Operation (.) Dia. hrough.5 (.69) C' bore laces (.) DIMNSIONS IN MILLIMRS (INCHS) R5(R.) R5(R.) (.6) (.6) Dia. osition # Dia. (.8) (.8) osition # osition # For other dimensions, refer to "Reversing Dog Operation"..5.5.5.5 osition # Neutral osition # No.
Rotary ype Directional s DR/DRG- Installation Drawing / s DRG-- D - -/9 ype "" : Reversing Dog Operation 8.6(.5) Dia. Cylinder ort "" ank ort "" 6(.) Dia..5 (.) 6 (.8) (.65) 5 (.98) 8(.) Dia. (.) 5(.9) Dia. osition # 5 5 osition # R8 (R.5) 6 (.) Cylinder ort "" ressure ort "".(.) Mounting Surface (O-Rings Furnished) 8.8(.5) Dia. hrough (.55) C' bore 5 laces For information on ype "": reversing Dog and Manual Operation and ype "C": Manual Operation, see DR- on the previous page. s : DRGM- - -/8/9 X DIMNSIONS IN MILLIMRS (INCHS) 6.(.) "F" Dia. laces 5 (5.9) (5.) "H" Dia. 8.6(.5) 5 (.98) (.8). (.) "C" hd. laces "D" hd..5.5 "" hd. 6(.6)Deep 5 laces 6 6 (.) Dia. hrough.5(.69) C' bore laces R(R.) 6(.) DRGM-- DRGM-X- "C" hd. "D" hd. "" hd. Rc / Rc /8 M8 mm (Inches) F H (.) Remarks DRGM--8 DRGM-X-8 / S.F /8 S.F M8. (.6) For Internal Drain DRGM--9 DRGM-X-9 / N /8 N 5/6-8 UNC (.) DRGM--R- DRGM-X-R- Rc / Rc /8 Rc / M8 (.) (.) DRGM--R-8 DRGM-X-R-8 / S.F /8 S.F / S.F M8. (.6). (.6) For xternal Drain DRGM--R-9 DRGM-X-R-9 / N /8 N / N 5/6-8 UNC (.) (.) No.
Rotary ype Directional s DR/DRG- Spare arts List CUION DR-- D - -/8/9 When making replacement of seals, please do it carefully after reading through the relevant instructions in the Operator's Manual. 6 6 9 8 5 5 Item Name of arts art Numbers Qty. Remarks O-Ring SO-N-G5 Included in Seal Kit 5 O-Ring SO-N-6 (Kit No.: KS-DR--) DRG-- D - -/9 8 5 9 6 6 9 8 5 5 Item Name of arts art Numbers Qty. Remarks 5 O-Ring SO-N-G5 Included in Seal Kit 6 O-Ring SO-N-6 (Kit No.: KS-DRG--) O-Ring SO-N-6 No.5
DC/DCG-, hreaded Connection / Mounting Specifications / Model Number Designation / s 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- DC - - -R - Special Seals F: Special seals for phosphate ester type fluids (Omit if not required) Series Number DC: Cam Operated Directional ype of Connection : hreaded Connection G: Mounting No. of osition Spool-Spring rrangement : Spring Offset Spool ype 8 None Normal osition Roller osition R Mounting Surface Y DC - only Design Number 5 5 Design Standards None: Japanese Standard "JIS" 8: uropean Design Standard 9: N. merican Design Standard None: Japanese Standard "JIS" & uropean Design Standard 9: N. merican Design Standard s Model Numbers DCG- DCG- Japanese Standard "JIS" DSGM-- DSGM-X- DSGM-Y- DSGM-- DSGM-X- DSGM-Y- hread Rc /8 Rc / Rc /8 Rc /8 Rc / Rc / uropean Design Standard DSGM--8 DSGM-X-8 DSGM--8 DSGM-X-8 DSGM-Y-8 hread /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 /8 N / N /8 N /8 N / N / N pprox. Mass kg (bs.).8 (.8).8 (.8).8 (.8). (6.6). (6.6). (.) No.6
DC/DCG-, Direction of Oil Flow for Roller osition / Others Mounting olts Socket head cap screws in the table below are included. Model Numbers DC- DCG- DCG- Japanese Standard "JIS" uropean Design Standard M5 5 Lg. M5 5 Lg. M6 5 Lg. Socket Head Cap Screw N. merican Design Standard No. - UNC -/ Lg. No. - UNC -/ Lg. /- UNC -/ Lg. Qty. ightening orque Nm (in. bs) 5- (-6) 5- (-6) -5 (5-) Direction of Oil Flow for Roller osition Model Numbers DC DCG -- Graphic Symbols Roller osition and Direction of Oil Flow Roller Stroke from Offset osition mm(inches) xtended(offset) Depressed.8 (.5) ll ports blocked.6 (.8) 9.5 (.) DC DCG --.8 (.5) ll ports open.6 (.8) 9.5 (.) DC DCG --8 & ports blocked.8 (.5) & ports blocked 9.5 (.) DC DCG -- ll ports blocked..8 (.)(.5) (.6) DC DCG --. (.8) ll ports open. (.5) (.6) DC DCG --8 & ports blocked.6 (.) ll ports blocked. (.85) & ports blocked (.6) ctuation Force Instructions 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 bf N 5 5 Force.5 5..5 Ma 5 5 SI -Line ack ressure No.
DC/DCG-, ressure Drop 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 5 5..5. 5 6 DCG-- DCG-- DCG--8 ressure Drop Curve No. 6 5 5.5 6 8 L/min 5 5 5 Flow Rate U.S.GM For any other viscosity, multiply the factors in the table below. mm /s 5 5 6 8 9 Viscosity SSU 98 86 8 6 Factor.8.8.96..9..9... 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. No.8
DC-- - -/8/9 5.5 (.) Dia. hrough 9.5 (.) C' bore places hreaded Connections: DC-/ 8.5 (.) Installation Drawing 5.5 (.) 8.5 (.) 9 (.5).5 (.59) 9 (.) 9 (.5) ressure ort "" "C" hd..5 (.) Cylinder ort "" "C" hd..5 (.) 55.8 (.) š š.5 (.).5 (.88).5 (.8) 8 (.89) Cam and Roller ravel Height of Cam 9.5(.) Max.5 osition "Y" (.9) (.6) Dia.Roller 5 (.9) Fully xtended (.) 8.5 (.5) ank ort "" "C" hd. Cylinder ort "" "C" hd. (.8) Cam Max. 66 (.6) osition "R" Normal osition (.6) 5 (.98) 8 (.5) 9 (.9) Stroke 9.5 (.) xtended (Offset) Depressed.5 (.5) 65 (.56) DC-- - - DC-- - -8 DC-- - -9 "C" hd. Rc /8 /8 S.F /8 N Note: When mounting the valve, be sure to use two mounting holes marked with. DC-- - -5/58/59 DIMNSIONS IN MILLIMRS (INCHS) 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 (.) Cam and Roller ravel 6. (.8) (.6) 6 (.8) (.6) Height of Cam (.8) Max.5 8 (.) Dia.Roller Fully xtended. (.89) Fully xtended 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) xtended (Offset) DC-- - -5 DC-- - -58 DC-- - -59 Depressed 8. (.) Max. Stroke "C" hd. Rc /8 /8 S.F /8 N No.9
DCG-- - - /9 Mounting: DCG-, Installation Drawing Mounting Surface: ISO ---- Cylinder ort "" 5.5 (.) 8.5 (.).5 (.59) ressure ort "" 5.5 (.6) (.).5 (.) 55.8 (.).5 (.8) 8 (.89).5 (.) 8.5 (.) (.6) Dia. Roller ank ort "" 5 (.9) Fully xtended (.) Cylinder ort "" 5.5 (.) Dia. hrough 9.5 (.) C' bore places osition "Y" osition "R" Normal osition (.6) 5 (.98) 8 (.5) 9 (.9).5 (.5) 65 (.56) Mounting Surface (O-Rings Furnished) Chain line indicates the Model DCG-- -R Cylinder ort "" (.8) 56.8 (.) 5 (.9) ressure ort "" 5 (.) Mounting Surface: ISO -C-5-- Cylinder ort "" (.8) Dia. hrough (.) Dia. Spotface places 6. (.8).5 (.8) 6 (.8) (.6) (.). 5.8 8 (.) Dia. Roller (.89) (.) ank ort "" Fully xtended 58.6 (6.) š 6 (.) (.6) 5. (.9) 59 (.) (.8) (.) Note: For the cam and roller travel, see DC- in the previous page. DIMNSIONS IN MILLIMRS (INCHS) DCG-- - - 5/59 9 (.5) 9 (.6) Mounting Surface (O-Rings 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. No.
Sub- plates DSGM- -/8/9 (.8) Dia. laces.5. (.59) (.56). (.9).5 (.85).(.5) for.5 (.) 5.5 (.6) 5. (.) "D" hd. "" Deep laces 8.5 (.) 5.8 (.) (.).5 (.5) Sub -plates.5 (.) 8 (.89) 6 (.8) (.6) 6 (.6) 5 (.59) (.6) (.9) "C" hd. laces (.8) 85 (.5) (.8) (.8) Dia. hrough (.) Dia. Spotface laces DSGM-- DSGM--8 DSGM--9 DSGM-X- DSGM-X-8 DSGM-X-9 DSGM-Y- DSGM-Y-9 iping "C" hd. Rc /8 /8 S.F /8 N Rc / / S.F / N Rc /8 /8 N "D" hd. M5 No. - UNC M5 No. - UNC M5 No. - UNC "" mm (IN.) (.9) (.) (.9) (.) (.9) (.) (.).5 (.9) 5.5 (.) 58.5 (.) Sub- plates DSGM- -/8/9 8.8 (.5) Dia. hrough (.55) Dia. Spotface laces (.9) (.8) J 8 (.) 9 (.5) 5 (.). (.) (.6) 6. (.66). (.) "D" hd. "" Deep laces (.9) (.8) K DIMNSIONS IN MILLIMRS (INCHS) L N 9 (.5) 6 (.8).5 (.8). (.8) 6. (.5) (.6) (.) 6 (.99) Q S (.) Dia. laces H 9 (.6) F "C" hd. laces DSGM-- DSGM--8 DSGM--9 DSGM-X- DSGM-X-8 DSGM-X-9 DSGM-Y- DSGM-Y-8 DSGM-Y-9 iping "C" hd. Rc /8 /8 S.F /8 N Rc / / S.F / N Rc / / S.F / N "D" hd. M6 /- UNC M6 /- UNC M6 /- UNC (.5) 5 (.59) (.5) 5 (.59) (.5) 5 (.59) F (.) (.) (.) Dimensions mm (Inches) H J K L N Q S 9 (.5) 9 (.5) (.55) (.9) (.9) 5 (.59) (.6) (.6) 5 (.9) 6 (.) 6 (.) 8 (.5) (.5) (.5) 5 (.) 6 (.6) 6 (.6) (.9) 8 (.89) 8 (.89) (.85) (.8) (.8) 6 (.6) (.9) (.9) (.65) No.
DC/DCG-, Spare arts List DC-- - -/8/9 DCG-- - -/9 8 CUION When making replacement of seals, please do it carefully after reading through the relevant instructions in the Operator's Manual. 9 6 5 6 Item Name of arts art Numbers 5 O-Ring O-Ring O-Ring SO-N-5 SO-N-8 SO-N-9 DC- Quantity DCG- Note: When ordering the o-rings, please specify the seal kit number from the table below. DC-- - -5/58/59 DCG-- - -5/59 6 9 5 5 9 8 8 6 Item Name of arts art Numbers O-Ring O-Ring O-Ring SO-N- SO-N-6 SO-N- DC- Quantity DCG- ack Up Ring SO--6 Note: When ordering the seals, please specify the seal kit number from the table below. 5 List of Seal Kit No. Mdel Numbers DC-- - -/8/9 DCG-- - -/9 DC-- - -5/58/59 DCG-- - -5/59 Seal Kit Numbers KS-DC-- KS-DCG-- KS-DC--5 KS-DCG--5 No.