Bosch Rexroth | 4WP6E73-6XV5
4WP6E73-6X/V/5
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The 4WP6E73-6X/V/5 spool valve belongs to the WP Pneumatic Spool Valves series and is manufactured by Bosch Rexroth for hydraulic automation circuits where directional control is required. It withstands a maximum operating pressure of 315 bar on ports A, B, and P, and delivers up to 60 l/min flow to accommodate medium-capacity actuators. Acceptable oil viscosity spans from 2.8 mm²/s to 500 mm²/s, allowing use with a broad range of hydraulic fluids. Pilot actuation functions between 4 bar and 10 bar, and each shift moves 4.24 cm³ of pilot oil through the G1/4 pilot port. A maximum switching frequency of 7200 operations per hour supports high-cycle machinery without compromising response.
Environmental and mounting parameters ensure reliable installation. The valve operates with ambient air temperatures up to 80 °C, and hydraulic fluid may reach the same 80 °C limit. A clamping length of 42 mm aligns the body with subplates built to DIN 24340 Form A, while the ISO 4401-03-02-0-05 porting pattern standardizes manifold drilling. T-port back pressure must not exceed 160 bar to protect internal components. Incoming fluid cleanliness is constrained to ISO 4406 20/18/15 to minimize wear on the spool and bore surfaces.
Technical Specifications
Ambient Temperature Max (fkm)
80 C
Clamping Length
42 mm
Fluid Cleanliness Class
ISO 4406 20/18/15
Hydraulic Fluid Temperature Max (fkm)
80 C
Maximum Flow
60 l/min
Maximum Operating Pressure (a/b/p)
315 bar
Maximum Pilot Pressure
10 bar
Maximum Switching Frequency
7200 1/h
Maximum T-port Pressure
160 bar
Minimum Pilot Pressure
4 bar
Mounting Standard
DIN 24340 Form A
Pilot Oil Port
G1/4
Pilot Volume
4.24 cm3
Porting Pattern
ISO 4401-03-02-0-05
Viscosity Lower Limit
2.8 mm2/s
Viscosity Upper Limit
500 mm2/s
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