Proportional Directional Valve 4WRZ32W9-520-7X/6EG24N9EK4/M - Bosch Rexroth R901054882

When a main cylinder has to be filled within seconds, nominal flow decides the cycle time. The 4WRZ32W9-520-7X/6EG24N9EK4/M provides 520 l/min for that, works up to 350 bar operating pressure and drains its pilot oil through a dedicated port.

Key benefits

• 520 l/min nominal flow in size 32, maximum flow through the valve 1600 l/min.
• Internal pilot oil supply with external return, the pilot stage stays decoupled from tank pressure.
• Spool symbol W9 with 3 switching positions and 4 ports to connection pattern ISO 4401-10-09-0-05.
• A concealed manual override lets the axis be moved without an applied signal.
• Version without pilot pressure reducing valve, controlled by external electronics on 24 VDC.
• 44.08 kg weight, NBR seals for HL hydraulic fluid, 3-pole connector (2 + PE).

Applications

The valve controls main axes on large presses, rolling stands and heavy industry hoists. At 520 l/min nominal flow the pressure drop across the valve stays manageable even during fast strokes. Draining pilot oil separately keeps spool position steady when high return flows occur in the shared tank channel.

Manufacturer

Bosch Rexroth, material number R901054882. Characteristic curves, step response and mounting dimensions are documented in the data sheet for type 4WRZ32W9-520-7X/6EG24N9EK4/M.