Proportional Directional Valve 4WRZE25W8-325-7X/6EG24N9EK31/F1V - Bosch Rexroth R900247478

Retrofitting a press with a current-controlled axis calls for a directional valve that accepts a 4 to 20 mA command signal directly. The 4WRZE25W8-325-7X/6EG24N9EK31/F1V delivers 325 l/min nominal flow at 350 bar operating pressure and weighs 20.1 kg.

Advantages

• 325 l/min nominal flow at 350 bar operating pressure, maximum flow 870 l/min.
• Analog command value input 4 to 20 mA, matching current outputs of existing controllers.
• Internal pilot oil supply with external pilot oil return, only one extra line to connect.
• Concealed auxiliary actuation allows a functional check without an electrical signal.
• 20.1 kg weight on connection diagram ISO 4401-08-08-0-05, FKM seals for an extended media range.

Applications

The valve controls oil flow direction according to the hydraulic symbol in systems with current-based command signals, such as presses or injection molding machines with existing 4 to 20 mA output cards. The concealed auxiliary actuation allows a functional check at commissioning without a signal from the controller. Without an integrated pressure reducing valve, it suits applications that do not need separate pilot pressure reduction.

Manufacturer

Bosch Rexroth, material number R900247478. Datasheets: Proportional directional valve, pilot-operated (RE 29115) and Hydraulic valves and hydro- (RE 07600-B).