Proportional Directional Valve 4WRZE16W8-125-7X/6EG24N9EK31/F1D3M - Bosch Rexroth R901402726

For auxiliary axes with moderate oil demand, a 125 l/min valve meters more precisely than the 180 rating. This 4WRZE16W8-125 is driven by 4...20 mA, takes pilot oil internally from the P channel and drains the pilot stage externally through Y. The null point therefore stays stable even when pressure builds in a return shared by several consumers.

Benefits

• 125 l/min nominal flow for auxiliary and infeed axes with moderate oil demand.
• External pilot drain protects the null point from back pressure in the return.
• Command value 4...20 mA, insensitive to long cable runs.
• Internal pilot supply from P, no dedicated pilot power unit required.
• Valve weight 12.16 kg, operating pressure 350 bar, flow limit 460 l/min.
• Spool symbol W8, concealed manual override, UKCA conformity.

Applications

The usual place for this valve is a secondary axis in a press or machining centre whose return joins a shared line. The subplate must carry the Y channel while X stays unconnected. If system pressure cannot sustain the pilot stage across the cycle, prefer the externally supplied variant.

Manufacturer

Manufactured by Bosch Rexroth, material number R901402726. The 2 attached manufacturer datasheets give characteristic curves, performance limits and mounting dimensions.