Pressure limits
Across the three sizes, the catalogue lists a maximum operating pressure of 315 Kgf/cm², maximum pilot pressure of 250 Kgf/cm² and maximum T-line back pressure of 210 Kgf/cm².
Yuken pilot operated directional valves
DHG Series directional valves
Compare DHG-04, DHG-06 and DHG-10 valves, then confirm the spool arrangement, pilot pressure and mounting details for your circuit.
3 sizesDHG-04, DHG-06 and DHG-10
Hydraulic pilotShifts the directional valve spool
315 Kgf/cm²Maximum operating pressure
2 or 3Valve positions, depending on configuration
Hydraulic control of flow direction
The DHG Series uses hydraulic pilot pressure to move the spool and change the direction of oil flow. These valves use sub-plate mounting.
Choose from three-position spring-centred, two-position no-spring and two-position spring-offset arrangements. Match the catalogue circuit symbol to the required actuator movement and neutral condition.
For a replacement, send the complete model code and a clear nameplate photograph. The series size alone does not identify the spool function or options.
Compare DHG flow limits
| Series | 3C / 2N flow ceiling | 2B flow at 315 Kgf/cm² | Minimum required pilot pressure |
|---|---|---|---|
| DHG-04 | 300 L/min | 60 L/min | 8 Kgf/cm² |
| DHG-06 | 500 L/min | 80 L/min | 8 Kgf/cm² |
| DHG-10 | 1100 L/min | 200 L/min | 10 Kgf/cm² |
3C: spring-centred; 2N: no-spring; 2B: spring-offset. Flow ceilings depend on spool type, pilot pressure and circuit conditions. The 2B values shown apply at 315 Kgf/cm²; use the catalogue for other operating pressures. Models with a pilot piston require a minimum pilot pressure of 18 Kgf/cm².
Pilot and drain connections
For spring-offset models, the catalogue requires pilot port Y to connect directly to the reservoir as a drain. Confirm the complete circuit and installation requirements before selection.
Spool control options
| Option | Catalogue function | Selection detail |
|---|---|---|
| C2 | Pilot choke adjustment | Adjusts changeover speed. |
| R2 | Stroke adjustment at both ends | Listed for 3C and 2N arrangements. |
| RA | Stroke adjustment at port A end | Listed for 3C, 2N and 2B arrangements. |
| RB | Stroke adjustment at port B end | Listed for 3C and 2N arrangements. |
Confirm the permitted option combination in the model designation table. Special seals for phosphate ester fluids require consultation with Yuken before ordering.
Selection support
Send the complete DHG requirement
Share the operating conditions and mounting details so the model and catalogue configuration can be checked before quotation.
- Full DHG model code and nameplate photograph
- Spool function, positions and spring arrangement
- Required flow and operating pressure
- Pilot pressure, pilot circuit and tank back pressure
- Sub-plate, mounting interface and option codes
- Hydraulic fluid, quantity and required timing
DHG technical catalogue
Review model codes, flow tables, circuit symbols, options and installation dimensions.
Enquire about a DHG valve
Send your model code, circuit requirements and quantity to Shree Hydraulics.