Proportional Directional Valve 4WRZE10W8-25-7X/6EG24ETK31/A1D3M - Bosch Rexroth R901473042

The 4WRZE10W8-25-7X/6EG24ETK31/A1D3M works without separate pilot lines. Supply and return both run internally, and the built-in pressure reducing valve provides the pilot pressure. With 25 l/min nominal flow it is laid out for smaller axes, operating pressure reaches 315 bar and the +/-10 V command value drives the spool of symbol W8.

Benefits

• Internal pilot supply and internal return save the X and Y lines during piping.
• 25 l/min nominal flow for smaller axes, maximum flow up to 170 l/min.
• Operating pressure up to 315 bar, mounting pattern ISO 4401-05-05-0-05 in size 10.
• Command value +/-10 V on on-board electronics, 24 VDC through a 7-pole connector (6 + PE).
• Pressure reducing valve in the pilot stage secures constant pilot pressure under varying system pressure.
• Weight 8.48 kg, spool symbol W8, NBR seals, UKCA conformity.

Application

The valve makes sense wherever a compact control axis should manage without its own pilot circuit, for example in clamping and infeed functions on machine tools. Internal pilot supply requires permanent pressure in port P. The return line has to carry the pilot flow as well.

Manufacturer

Material number R901473042 at Bosch Rexroth, type designation 4WRZE10W8-25-7X/6EG24ETK31/A1D3M, product family 4WRZ(E). Dimensions, curves and commissioning notes are given in data sheets RE 29115 and RE 07600-B.