Proportional Directional Valve 4WRZE25W8-220-7X/6EG24N9ETK31/A1D3M - Bosch Rexroth R900618920

This 4WRZE25 proportional directional valve routes pilot oil supply and return internally, giving a symbol W8 spool precise flow control. Nominal flow is 220 l/min, maximum flow 870 l/min, operating pressure up to 350 bar.

Advantages

• 220 l/min nominal flow at a maximum flow of 870 l/min
• Internal pilot oil supply and return removes the need for external pilot lines
• Integrated pressure reducing valve sets the pilot pressure inside the valve
• Analog control with a ±10 V command value through the on-board electronics
• Concealed auxiliary actuation allows manual emergency operation of the spool
• Size 25 to ISO 4401-08-08-0-05 at 20.67 kg

Applications

The valve controls flow direction for hydraulic cylinders and motors in stationary equipment operating in a high performance range, for example presses or test rigs. The ±10 V analog command input connects directly to a higher level controller. Internal pilot oil routing keeps the piping at the mounting surface to ISO 4401-08-08-0-05 to a minimum.

Manufacturer

Manufacturer Bosch Rexroth, material number R900618920. Technical details in the datasheet Proportional directional valve, pilot-operated (RE 29115) and Hydraulic valves and hydro- (RE 07600-B).