DIRECTIONAL CONTROLS. Pilot Operated Directional Valves. Specifications

Transcription

1 ilot Operated Directional s DIRECIONL CONROLS hese valves perform a change over of spool by hydraulic pilot and shift the direction of oil flow. EIC-E-04-0 Specifications Model Numbers Maximum Flow L/min Max. Operating ressure Max. ilot ressure Min. Required ilot ressure Max. -Line ack res. DHG-04-3C *1 300 *1 300 *1 300 *1 DHG-04-2N DHG DHG-06-3C *2 500 *2 500 *2 500 *2 DHG-06-2N DHG DHG--3C *3 10 *3 10 *3 10 *3 DHG--2N DHG Mass Kg Note: Max. flow refers to a ceiling flow which does not affect the normal function (changeover) of the valve. lso, max. flow in the above table indicates values when the flow condition is as shown in the right-hand figure. (or ). Max. flow varies according to the circuit if port or is to be blocked. Consult yuken for such application. *1. *2. *3. Varies depending on the spool type. Varies depending on the spool type and pilot pressure. For more information, see page EIC-E-03 age No. 376 for the list of spool functions DSHG-06 the Solenoid Controlled ilot Operated Directional s. Varies depending on the spool type and pilot pressure. For more information, see page EIC-E-03 age No. 377 for the list of spool functions DSHG- the Solenoid Controlled ilot Operated Directional s. *4. Minimum pilot pressure for the models with pilot piston is 18. ressure Drop Same as those Solenoid Controlled ilot operated Directional s. See page EIC-E-03 age 379 for the related information. Instruction Incase of spring offset models, directly connect the pilot pressure port to the reservoir as a drain port. 388 ilot Operated Directional s

2 DIRECIONL CONROLS Model Number Designation F- DH G C2 -R -50 Special seals Series Number ype of Connections Size Number of s ositions Spool rrangement Spool ype Special; wo osition Models with ilot Choke (Options) Spool Control Modifications (Options) Design Number F: Special seals for hosphate Ester ype Fluids (Omit if not required) DH: ilot Operated Directional G: Sub- late Mounting 04 C: R2: With stroke 46 Centered djustment, 2. 3 oth Ends N: 5. 6 *2, *2 C2: R: No- (Omit if With C2 With stroke not Choke djustment, 9. required) ort End 2 : R: Offset With stroke djustment, 40 Refer to *1 ort End *1 For various combinations, see the List of valve types below. *2 Refer to the column valves with center position (Special 2-position valve) on page 391. E 2 3 List of ype Spool ype hree ositions centred 3C2 3C3 ypes wo ositions No Graphic Symbol 2N2 2N3 Offset List of Options Model Numbers Option Code C2 R2 R R DHG-04-3C О О О О DHG-04-2N О О О О DHG-04-2 О О DHG-06-3C О О О О DHG-06-2N О О О О DHG-06-2 О О DHG--3C О О О О ilot Operated Directional s 4 3C4 2N4 24 DHG--2N О О О О 40 3C40 2N DHG--2 О О 5 6 3C5 3C6 Note : О Mark : vailable Mark : Not vailable 60 3C60 7 3C7 2N C9 3C 11 3C C12 ilot Operated Directional s 389

3 DIRECIONL CONROLS Sub-plate Model Numbers DHG-04 DHG-06 DHG- Sub-late Model numbers hread Size pprox. Mass Kg DHGM /2 S.F 4.4 DHGM /4 S.F 4.1 DHGM DHGM DHGM DHGM /4 S.F 1 S.F 1-1/4 S.F 1-1/2 S.F Sub-plates are available. Specify sub-plate model from the above. When sub-plates are not used, the mounting surface should have a good machined finish. Sub-plates are shared with those for Solenoid Controlled ilot Operated Directional s. Refer EIC-E-03 page 384 and 385 for dimensions. Mounting olts Model Number Soc. Hd. Cap Screw Qty. Mounting olt Kit Number DHG-04 M6 x 45 Lg. 2 M x 50 Lg. 4 KDHG DHG-06 M12 x 60 Lg. 6 KDHG DHG- M20 x 75 Lg. 6 KDHG--40 Options Models with ilot Choke djustment (C2) o lower the changeover speed, turn the adjusting screw clockwise. In particular, the centering speed which is controlled by spring force can be lowered. his applies to spring centered models and offset models. hese models can be used in combination with centered models, no-spring detented models, and models with stroke adjustment. Graphic Symbol Centered Models Models with Stroke djustment (R ) Stroke djustment Screw (ort ""End) When the adjusting screw is screwed in, the spool stroke becomes shorter as flow rate reduces. dditional Mass of options dd mass of options below to mass of standard type (see page -388) if options are used. Model Numbers Graphic Symbol Centered Models with Stroke djustment on oth Ends (R2) With ilot Choke With Stroke djustment R2 R R DHG DHG DHG Stroke djustment Screw (ort ""End) 390 ilot Operated Directional s

4 DIRECIONL CONROLS s with Centre osition and One Offset osition (Special wo osition s) In addition to the standard wo osition s (2 ), the following two types of two position valves are available: s with neutral position and pilot pressure position (2 ). s with neutral position and pilot pressure position (2 ). Model Numbers Graphic Symbols Model Numbers Graphic Symbols 04 DHG DHG-06-2 DHG- 22 DHG- 23 DHG- 24 DHG- 240 DHG- 25 DHG- 26 DHG- 22 DHG- 23 DHG- 24 DHG- 240 DHG- 25 DHG- 26 DHG- 260 DHG- 27 DHG- 29 DHG- 2 DHG- 211 DHG- 212 DHG ressure ort "" ank ort "" Cylinder ort "" 7 Dia. x hru. 11 Dia. Spotface 2 laces DHG- 260 DHG- 27 DHG- 29 DHG- 2 DHG- 211 DHG- 212 ilot ressure ort "" 11 Dia. x hru Dia. Spotface 4 laces ilot ressure ort "" Cylinder ort "" lternate long and short dash line indicates Offset Models (2 ) DIMENSIONS IN MILLIMERES Mounting Surface: ISO 4401-D Fully Extended 59 Options Models With ilot Choke DHG ilot Flow djustment Screw 6 Hex E ilot Operated Directional s Mounting Surface (O-Rings Furnished) Dia. wo Locating ins For Offset Models (2, 2 - ) it functions as a drain port. When that model is used directly connect it to the reservoir. Note : For the valve mounting surface dimensions, see the dimensional drawing of the sharable sub-plate on EIC-E-03 age 384. ilot Operated Directional s 391

5 DIRECIONL CONROLS DHG ank ort "" ilot ressure ort "" 13.5 Dia. x hru. 20 Dia.Spotface 6 laces Cylinder ort "" Cylinder ort "" ressure ort "" ilot ressure ort "" Max Indicates Offset Model (2 ) Indicates Offset Model (2 ) 48 Mounting Surface: ISO 4401-E Options Models With ilot Choke DHG-06- -C2 Fully Extended 59 ilot Flow djustment Screw 6 Hex Models with Stroke dj. (R ) Outside dimensions are the same as those of the main valve of Solenoid Controlled ilot Operated Directional s (DSHG-06). SeeEIC-E-03 age 381 Mounting Surface (O-rings Furnished) 6 6 Dia. wo Locating ins In case of Offset Models (2, 2 - ) it functions as a drain port. When that model is used directly connect it to the reservoir. Note : For the valve mounting surface dimensions, see the dimensional drawing of the sharable sub-plate in EIC-E-03 age 384 DHG Dia. x hru. 32 Dia. Spotface 6 laces ank ort "" Cylinder ort "" Cylinder ort "" ilot ressure ort "" Mounting Surface (O-rings Furnished) ressure ort "" ilot ressure ort "" Note : For the valve mounting surface dimensions, see the dimensional drawing of the sharable sub-plate in EIC-E-03 age Max Indicates Offset Model (2 ) 45 Indicates Offset Model (2 ) 48 2-Eye olts 6 Dia. wo Locating ins Mounting Surface: ISO 4401-E Options Models With ilot Choke DHG-- -C2 Fully Extended 59 ilot Flow djustment Screw 6 Hex Models with Stroke dj. (R ) Outside dimensions are the same as those of the main valve of Solenoid Controlled ilot Operated Directional s (DSHG-).See EIC-E-03 age 382 In case of Offset Models (2, 2 - ) it functions as a drain port. When that model is used directly connect it to the reservoir. 392 ilot Operated Directional s

6 DIRECIONL CONROLS Spare arts List List of Seals Sl. No. Name of arts DHG-04 DHG-06 DHG- Qty. 1 O-Ring SO-N O-Ring -- SO-N-9 SO-N O-Ring SO-N O-Ring -- SO-N- SO-N O-Ring SO-N O-Ring -- SO-N-14 SO-N O-Ring -- SO-N-30 SO-N O-Ring -- SO-N-40 SO-N-G65 2 Note: When ordering the seals, please specify the Seal Kit number from the table below. List of Seal kits Model Numbers DHG DHG DHG Seal Kit Numbers KS-DHG KS-DHG KS-DHG--40 E ilot Operated Directional s ilot Operated Directional s 393