Proportional Directional Valve 4WRZ32E520-7X/6EG24N9EK4/D3M - Bosch Rexroth R900970570

A loaded tank channel pushes on the back of the pilot stage and shifts its operating point. The 4WRZ32E520-7X/6EG24N9EK4/D3M drains pilot oil through an external line, takes it internally and works at 520 l/min nominal flow.

Benefits

• External pilot oil return, residual pressure from cooler and return filter does not act on the pilot stage.
• Pressure reducing valve in the pilot circuit, control pressure stays limited although the main channel carries up to 350 bar.
• 520 l/min nominal flow, up to 1600 l/min throughput across 4 ports in size 32.
• Spool symbol E, 43.64 kg weight, subplate mounting to ISO 4401-10-09-0-05.
• NBR seals for HL hydraulic fluid, including concealed auxiliary actuation for setup mode.

Applications

The valve serves presses and lifting gear whose return line runs through coolers and fine filters. A separate Y line keeps the operating point of the pilot stage independent of the return condition. An external amplifier at 24 VDC provides the command signal.

Manufacturer

Bosch Rexroth, material number R900970570. The permitted back pressure in the tank channel is stated in data sheet RE 29115.