Proportional Directional Valve 4WRZE25W8-325-7X/6EG24N9ETK31/A1D3M - Bosch Rexroth R900730756

A valve block without separate pilot lines stays simpler to pipe up. The 4WRZE25W8-325-7X/6EG24N9ETK31/A1D3M draws pilot oil from the P channel, returns it into the tank channel, meanwhile setting 325 l/min rated flow at up to 350 bar.

Benefits

• Internal pilot oil supply with internal pilot return removes the X line as well as the Y line at the plate.
• 325 l/min rated flow in size 25, peak value of the series 870 l/min.
• Command value plus minus 10 V at the on-board electronics, 24 V DC supply through the 7-pole connector (6 + PE) to EN 175201-804.
• Spool symbol W8 with 3 switching positions, 4 ports, concealed auxiliary actuation in the pilot stage.
• ISO 4401-08-08-0-05, NBR seals, HL fluid, 20.68 kg.

Applications

The layout makes sense in compact power units, mobile test rigs, anywhere an extra pilot line costs assembly time. The tank channel should stay at low pressure, since the pilot stage relieves through it. With a heavily loaded return, the EK31 version with external pilot return is the answer.

Manufacturer

Bosch Rexroth, material number R900730756. The type code 4WRZE25W8-325-7X/6EG24N9ETK31/A1D3M names size 25, symbol W8, 325 l/min, series 7X, pilot circuit A1D3M with voltage command. Data sheet RE 29115 plus range overview RE 07600-B are the reference.