Proportional Directional Valve 4WRZE25W8-220-7X/6EG24N9ETK31/A1D3V - Bosch Rexroth R900711370

Many existing manifolds have no galleries for external pilot oil, and drilling them afterwards is out of the question. This size 25 valve therefore takes and returns its pilot oil internally, meters 220 l/min nominal flow and works with the widespread ±10 V command range.

Benefits

• Internal piloting, so no extra gallery is required in the manifold.
• 220 l/min nominal flow in size 25, flow up to 870 l/min.
• ±10 V command value, 24 VDC supply, spool symbol W8 with 3 switching positions.
• Operating pressure up to 350 bar, 4 ports to ISO 4401-08-08-0-05.
• Weight 20.64 kg, FKM seals, UKCA conformity to SI2016/1091.

Applications

The variant makes sense when proportional control is retrofitted into plants that previously had switching valves only. The existing subplate can normally be kept. It does require a main circuit with permanent pressure for the control-oil take-off.

Manufacturer

Bosch Rexroth, material number R900711370. Pilot-operated proportional directional valve of the 4WRZ(E) product family with on-board electronics. Further details are given in data sheets RE 29115 and RE 07600-B.