Proportional Directional Valve 4WRZE25W6-220-7X/6EG24K31/F1D3M - Bosch Rexroth R901128915

When the control cabinet sits dozens of metres from the valve block, a current command is the sturdier choice. The 4WRZE25W6-220-7X/6EG24K31/F1D3M accepts 4...20 mA, carries 220 l/min nominal flow at up to 350 bar and draws its pilot oil from a dedicated circuit.

Benefits

• A 4...20 mA command stays insensitive to voltage drop over long cable routes.
• Spool symbol W6 frees both flow directions alike at 220 l/min nominal flow.
• External pilot oil supply and external return for plants running their own pilot pump.
• A built-in pressure reducing valve holds pilot pressure constant up to 350 bar working pressure.
• UKCA conformity to SI2016/1091, mounting pattern ISO 4401-08-08-0-05, weight 20.66 kg.

Applications

The valve works in sprawling plants such as rolling lines, harbour cranes and lock gate drives with a central cabinet. A broken wire shows up in the signal, because the measuring range starts only at 4 mA. Range maximum flow reaches 870 l/min.

Manufacturer

Bosch Rexroth, material number R901128915. In the type code 4WRZE25W6-220-7X/6EG24K31/F1D3M the letters W6 mark the symmetrical spool, 220 the nominal flow and F1 the 4...20 mA current command. The characteristic curves and installation dimensions are given in data sheet RE 29115 and RE 07600-B.