Proportional Directional Valve 4WRTE25E350P-4X/6EG24ETK31/A1V - Bosch Rexroth R901135448

Once a press cylinder has to be filled within seconds, maximum flow decides the cycle time. The 4WRTE25E350P-4X/6EG24ETK31/A1V delivers 350 l/min nominal flow and passes up to 870 l/min at peak, at 350 bar operating pressure.

Benefits

• 870 l/min maximum flow alongside 350 l/min nominal flow leaves headroom for rapid traverse.
• FKM seals instead of NBR widen use to higher oil temperatures and demanding hydraulic fluids.
• Spool symbol E provides a fine metering range around centre, so smooth start-up survives the large nominal size.
• Internal pilot oil supply with external pilot oil return keeps surges in the tank line away from the pilot circuit.
• Mounting pattern ISO 4401-08-08-0-05 in size 25, valve mass 18 kg, ±10 V command at 24 VDC.

Technical data

Applications

Presses, forging plant and large test rigs where a cylinder travels under high load in closed loop. The FKM version suits installations running at sustained high oil temperature. On-board electronics accept the command value straight from the machine controller, so no amplifier card is needed in the cabinet.

Manufacturer

Bosch Rexroth, material number R901135448, product family 4WRTE. Electrical connection uses a 7-pole connector (6 + PE) to EN 175201-804.