Modified on:
August 17,2026
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3WMR_6_A5X-
Name: Switching Directional Valve (Rexroth - BOSCH). - Directional Spool Valve. - Directional Valve With Roller Operated. - Type WMR. - Nominal Size NS6. - A & B & C &............. W-Spool. - Qmax = approx. 60 L/min. - Pmax = 315 bar. - Porting Pattern To DIN 2 Description: Based on the official Bosch Rexroth technical documentation, a Type WMR roller-operated directional spool valve in NS6 directly meets your specifications for maximum flow and pressure, as well as the required porting patterns .
The valve is a direct-operated directional spool valve, available in 4/3, 4/2, and 3/2-way versions .
Technical Specifications
The following specifications are confirmed for the WMR valve family in NS6.
Parameter Specification Source(s)
Valve Type WMR - Directional spool valve, roller plunger actuated
Nominal Size (NS) 6 (NG6 / CETOP 3)
Maximum Operating Pressure 315 bar (at ports P, A, B)
Maximum Flow (Qmax) 60 L/min
Actuation Roller plunger
Porting Pattern DIN 24340 Form A, ISO 4401-03-02-0-05, CETOP-RP 121 H
Understanding Spool Types
The valve is available with a variety of spool symbols (A, B, C, etc.) to provide different flow path configurations and circuit functions . The letter in the model number, such as 3WMR6B5X/, denotes the specific spool type . A detailed list of available symbols can be found in the manufacturer's documentation .
Operational Notes
Detent: Directional valves with a roller plunger (WMR) are generally designed without a detent mechanism, meaning the spool does not lock into position and will return to the starting position once the actuating force is removed .
Port T Pressure: It is important to note that for the WMR valve, the port T (return) has a lower maximum pressure rating of 60 bar .
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315bar
60lmin
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