Proportional Directional Valve 4WRKE25E1-220L-3X/6EG24K31/F1D3M - Bosch Rexroth R901300240

Systems that run their own pilot oil circuit need a main stage that does not draw pilot pressure from the working line. In version K the 4WRKE25E1-220L-3X takes pilot oil externally and returns it externally, so pilot pressure stays steady even when pressure in the P line collapses. It meters 220 l/min nominal flow at operating pressure up to 350 bar.

Benefits

• External pilot oil supply and external pilot oil return for plants with a separate pilot circuit
• 220 l/min nominal flow, up to 870 l/min flow rate depending on pressure differential
• 4...20 mA command value at the on-board electronics, 24 V DC supply
• Spool symbol E1, three switching positions, four ports
• 17.74 kg weight, ISO 4401-08-08-0-05 interface

Applications

Typical installations are power units running a separate pilot pump, for example on sheet metal presses and rolling mills. Because pilot pressure is supplied independently, the valve keeps its control quality during load changes in the working circuit. NBR seals suit HL hydraulic fluid.

Manufacturer

Bosch Rexroth, material number R901300240. The type code 4WRKE25E1-220L-3X/6EG24K31/F1D3M defines size, spool symbol, pilot oil routing and command value type without ambiguity.