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HK DPH 4

Directional control valve NG25
Max. working pressure
P, A, B: max. 350 bar / T: max. 210 bar 
Design
4/3-way valve (without pilot valve) 
pilot operated 
Connection
ISO/Cetop 08 size 25 
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Characteristics

Max. working pressure
  • P, A, B: max. 350 bar / T: max. 210 bar 
Design
  • 4/3-way valve (without pilot valve) 
  • pilot operated 
Connection
  • ISO/Cetop 08 size 25 
Flow rate
  • max. 650 l/min (note characteristic curves) 
Mounting
  • 6 pcs. hexagon socket screw M 12 x 50 12.9 
  • Screw set HK M12 50 for 1 basic valve. In vertical stacking applications with sandwich plates, the use of the appropriate longer screws are required. 
Customs tariff number
  • 84812010 
All characteristics

Product description

Notes
The O-rings (NBR 90 Shore A) for the valve port can be ordered as spare part separately under the following article number: 4 pieces OR28.17-3.53N90 and 2 pieces OR13.94-2.62N90
Description
These valves are actuated by a solenoid directional valve NG6 in leakage oil-reduced design (type HK DHE...P...) to be installed as a pilot valve.
Control is internal, but conversion to external is possible.
The minimum control pressure for correct function is 8 bar.
In the version with control pressure generator, an additional pressure drop is generated which ensures the minimum required control pressure for a correct switching function. The version with control pressure generator must be used if the pressure drop in the valve is below the minimum value of the control pressure.
Ordering information
Further circuits and versions, volumetric flows and switching power limits are available on request

Product variants

4 Results
Show dimensional drawing
Identifier
Type
Overlap
Piston type
Design
Price / items
4/3 
negative (open) 
0 [PB/AT]-[ABPT]-[PA/BT] 
spring return, control pressure generator 
4/3 
positive (closed) 
1 [PB/AT]-[A/B/P/T]-[PA/BT] 
spring return 
4/3 
positive (closed) 
3 [PB/AT]-[ABT/P]-[PA/BT] 
spring return 
4/3 
negative (open) 
4 [PA/BT]-[A/B/PT]-[PB/AT] 
spring return, control pressure generator 
Piston type example: [A/B/PT] = [A blocked / B blocked / P+T connected]

Column selection

Type
Overlap
Piston type
Design
Piston type example: [A/B/PT] = [A blocked / B blocked / P+T connected]