Bosch Rexroth | 4WPH22C7X6NETB10P4-55
4WPH22C7X/6NET/B10P4 5/5
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The 4WPH22C7X/6NET/B10P4 5/5 valve is produced by Bosch Rexroth within the WP Pneumatic Spool Valves series. It directs hydraulic flow in automated machinery by using pneumatic-hydraulic actuation. The unit is built in nominal size NG25, and a subplate mounting connection follows the ISO 4401-08-08-0-05 interface for interchangeability. Four working ports arranged on an NFPA D08 pattern suit common manifold blocks, while three switching positions let the control system establish forward, reverse, or neutral states. Inside the housing, the spool identified by symbol C defines the flow paths selected during each shift.
The device functions as a pilot-operated directional unit with pilot oil drawn internally from port E and returned internally through port T. The pilot stage handles pressures up to 250 bar, and the main passages withstand operating pressures as high as 280 bar. Acceptable media are HL, HLP, and HETG fluids, provided they meet ISO 4406 cleanliness level 20/18/15 to protect sliding elements. NBR seals contain the hydraulic oil and resist standard mineral or bio-based formulations. These characteristics enable consistent service in systems where compressed air initiates the shift and hydraulic force performs the work.
Technical Specifications
Actuation Type
Pneumatic-Hydraulic
Fluid Cleanliness Class
ISO 4406 20/18/15
Hydraulic Fluid Types
HL, HLP, HETG
Max Operating Pressure
280 bar
Mounting Interface
ISO 4401-08-08-0-05
Nominal Size
NG25
Number Of Ports
4
Pilot Oil Return
Internal (T)
Pilot Oil Supply
Internal (E)
Pilot Pressure Max
250 bar
Port Size (nfpa)
D08
Seal Material
NBR
Spool Symbol
C
Switching Positions
3
Type Of Connection
Subplate Mounting
Valve Type
Directional Spool Valve (Pilot-Operated)
1620 Old Apex Road
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