Proportional Directional Valve 4WRKE25E1-220L-3X/6EG24EK31/A1D3M - Bosch Rexroth R901189931

Many axis controllers issue the command value as a voltage. Fitted with A1 electronics, the 4WRKE25E1-220L-3X accepts ±10 V and turns it into direction and opening of the main spool, at 220 l/min nominal flow and operating pressure up to 350 bar. Pilot oil supply is internal, the pilot oil return external.

Benefits

• ±10 V command value, directly compatible with common analogue outputs
• 220 l/min nominal flow, flow rate up to 870 l/min
• Internal pilot oil supply, external pilot oil return through Y
• Operating pressure up to 350 bar, three switching positions, four ports
• 17.96 kg weight, NBR seals for HL hydraulic fluid

Applications

In a retrofit the voltage interface replaces an older amplifier using the same signal form, so the wiring can stay as it is. Applications include press controls, test rigs and conveyor lines. Position feedback of the main spool keeps the opening steady under changing load.

Manufacturer

Bosch Rexroth, material number R901189931. The type code 4WRKE25E1-220L-3X/6EG24EK31/A1D3M defines size, spool symbol, pilot oil routing and command value type without ambiguity.