Directional Control Valves - Border Supply

1 Vickers . Valves Directional Control Valves DG3*-H8; 30 and 10 Series, Pilot Operated DG17*-H8; 30 and 10 Series, Manually Operated DG5*-H8; 50 and 30 Series, Solenoid Controlled, Pilot Operated ISO 4401 Size 08. Basic Characteristics Typical Section Mounting .. Surface mounting DG5*-H8-2C Spring-Centered Valve Example Max. pressure: DG*S .. 210 bar (3000 psi). DG*V .. 350 bar (5000 psi). Max. flow .. 700 L/min (185 USgpm). General Description which can be enhanced by optional DG**-H8 Valves are used primarily for stroke and/or pilot choke adjustments.

2 Features and Benefits controlling the starting, stopping and Models include spring offset, spring High pressure and flow capability for direction of fluid flow. centered, pressure centered and maximum cost-effectiveness. detented versions. All are available with Low headloss to minimize power Basically, six series of Valves are the option of an integral P-port wastage. available grouped into DG*S moderate minimum-pilot-pressure generator. DG5* Low shock characteristics to pressure versions and DG*V high Valves can be arranged for internal or maximize machine life.

3 Pressure versions. There is a choice of external pilot pressure and/or drain Facility to change solenoid coils up to 18 different spools, dependent on connections. without disturbing the hydraulic valve configuration. These include envelope. meter-in and meter-out spools, and The many optional features, regeneration types that can obviate particularly for DG5* Valves , permit extra Valves essential in traditional matching to virtually every application circuit arrangements. All spools have within the valve's power capacity.

4 Been designed to provide good low shock, fast response characteristics March 1996 GB-2327A. Functional Symbols DG3*-H8 Pilot Operated Models Comprehensive and simplified symbols. Spring Offset, End-to-End, Spring Offset, End-to-End, DG3-H8 Options DG3*-H8-*A Opposite Hand, DG3*-H8-*AL The following are shown in a Spool types: 0, 2, 6, 9, 52, Spool types: 0, 2, 6, 9, 52, DG3*-H8-*C example: 521, X2 , Y2 521, X2 , Y2 1. Pilot choke module 2. Minimum pilot pressure generator 3. Stroke adjusters at either or at both ends (shown at both ends in example).

5 One or more options can be built into b a b a any DG3 series valve. X P T Y B A X P T Y B A. A B A B. X b a b a Y 1. Y X. P T P T. Spring Centered, DG3*-H8-*C Pressure Centered, DG3*-H8-*D. Spool types: All Spool types: All 3 3. b o a . 2. X P T Y B A. b o a b o a A B. X P T Y B A X L P T Y B A. b o a . A B A B. X Y X Y. b o a b o a . P T L P T X P T. DG5*-H8, Solenoid Controlled, Pilot Operated Models Comprehensive and simplified symbols, shown configured for external pilot Supply and internal drain.

6 Spring Offset, End-to-End, Spring Offset, End-to-End, DG5*-H8-*A Opposite Hand, DG5*-H8-*AL. Spool types: 0, 2, 6, 9, 52, Spool types: 0, 2, 6, 9, 52, 521, X2 , Y2 521, X2 , Y2 . b o a b o a X P T Y B A X P T Y B A. A B A B a and b interchanged for spool types 4. and 8. b a b a X and Y spools require a stroke adjuster at one or both ends, dependent on the application, to limit stroke towards a . P T Y P T Y and/or b . 2. Spring Offset, End-to-Center Spring Offset, End-to-Center, Spring Centered, DG5*-H8-*C.

7 Models Spool types Opposite Hand Spool types: All DG5*-H8-*B 0, 2, 521, X2 , Y2 Models Spool types DG5*-H8-*BL 4, 8 DG5*-H8-*B 4, 8. DG5*-H8-*BL 0, 2, 521, X2 , Y2 . b o a b o a b o a . X P Y B A X P T Y B A X P T Y B A. A B A B A B. b o o a b o a . P T Y P T Y P T Y. Pressure Centered, DG5*-H8-*D Detented, DG5*-H8-*N DG5*-H8 Options Spool types: All Spool types: 0, 2, 6, 9, 52, 521, The following are shown in a X2 , Y2 DG5*-H8-*C example: 1. Pilot choke module 2. Minimum pilot pressure generator 3.

8 Stroke adjusters, at either or at both ends (shown at both ends in example). 4. External pilot connection 5. Internal drain One or more options can be built into b o a b o a any DG5 series valve, the only exception being that the internal drain X L P T Y B A X P T Y B A option is not available with DG5*-H8-*D. A B A B (pressure centered) Valves . b o a b a L P T Y P T Y. 1. 3 3. b o a . 4 2 5. X P T Y B A. A B. b o a . a and b interchanged for spool types 4 and 8. X and Y spools require a stroke adjuster at one or both ends, dependent on the X P T.

9 Application, to limit stroke towards a and/or b . 3. DG17*-H8 Hand-Lever Operated Models Spool Types Comprehensive and simplified symbols. Shown in 3-position form, plus 2. transients Spring Offset, End-to-End, Spring Offset, End-to-End, b o a DG17*-H8-*A Opposite Hand, DG17*-H8-*AL. Spool types: 0, 2, 6 Spool types: 0, 2, 6 0. 1. 2. b a b a 3. X P T Y B A X P T Y B A. A B A B 6. b a Y b a Y. P T P T. 9. Spring Centered, DG17*-H8-*C Detented, DG17*-H8-*N. Spool types: 0, 2, 4, 6, 8, 33 Spool types: 0, 2, 4, 6, 8, 33.

10 11. 31. 33 &. b o a b o a 34 s X P T Y B A X P T Y B A 52. A B A B. b o a b o a 521. Y Y. P T P T. a and b interchanged for spool types 4 and 8. X2. Symbols on Nameplates Y2. Typical illustrations for: DG3*-H8-2D-1 DG5*-H8-3C-2-E-T-* X33. A B. 4 Y33. P T. 2 3 a o b 4. A B 1 A B. 1 8. P T T Notes: 1. In the detailed and simplified symbols on X L P T Y B A X P T Y B A this and the previous pages, the transient positions are omitted for simplicity. 1. On main stage 1. On main stage 2. In certain 2-position Valves , the o position 2.