Proportional Directional Valve 4WRKE25E1-220L-3X/6EG24EK31/F1D3M - Bosch Rexroth R901297584

Mixed pilot oil routing becomes necessary as soon as the tank line carries back pressure. In version EK the 4WRKE25E1-220L-3X takes pilot oil internally from the P line while the return runs through a separate Y port to tank without pressure. The pilot stage stays clean while the main stage meters 220 l/min nominal flow at up to 350 bar.

Benefits

• Internal pilot oil supply, external pilot oil return through Y for circuits with tank back pressure
• 220 l/min nominal flow, flow rate up to 870 l/min
• 4...20 mA current command value, 24 V DC supply, 7-pole connector (6 + PE)
• Operating pressure up to 350 bar, NBR seals
• 18.02 kg weight, ISO 4401-08-08-0-05 interface

Applications

This version is chosen where several consumers share one return line and that line builds up back pressure. Coolers and filters in the return then no longer disturb the pilot stage. Suitable for presses, lifting gear and test rigs in size 25.

Manufacturer

Bosch Rexroth, material number R901297584. The type code 4WRKE25E1-220L-3X/6EG24EK31/F1D3M defines size, spool symbol, pilot oil routing and command value type without ambiguity.