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HK DPH 4

Directional control valve NG25

Design
4/3-way valve (without pilot valve) 
pilot-controlled 
Max. operating pressure
P, A, B: max. 350 bar / T: max. 210 bar 
Volumetric flow
max. 650 l/min (note characteristic curves) 
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Characteristics

Design
  • 4/3-way valve (without pilot valve) 
  • pilot-controlled 
Max. operating pressure
  • P, A, B: max. 350 bar / T: max. 210 bar 
Volumetric flow
  • max. 650 l/min (note characteristic curves) 
Connection
  • ISO/Cetop 08 NG25 
Mounting
  • 6 No. hex. socket head screw M12x50 12.9 
  •  
All characteristics

Product description

Notes
The O-rings (NBR 70° Shore A) for the valve port can be ordered as spare part separately under the following article number: 4 pieces OR22.22-2.62 and 3 pieces OR9.13-2.62
Description
These valves are actuated by a leak oil-reduced, solenoid-operated directional control valve size 6 set up as a pilot valve (type HK DHE *P*).
Control is internal, but conversion to external is possible.
The minimum control pressure for correct functioning is 8 bar. With the version with the control pressure generator, an additional pressure drop occurs, which ensures the minimum required control pressure for correct functioning. The version with the control pressure generator must be used if the pressure drop in the valve is below the minimum control pressure.
Ordering information
Further circuits and versions, volumetric flows and switching power limits on request

Overview of variants

4 Variants
Show table information
title
Piston type example: [A/B/PT] = [A blocked / B blocked / P+T connected]
Identifier
Type
Overlap
Piston type
Version
Price
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 
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