Proportional Directional Valve 4WRZE16W6-180-7X/6EG24N9ETK31/F1D3M - Bosch Rexroth R901419768

In plants full of frequency converters a current command value is the safer choice. This pilot-operated size 16 valve handles 4...20 mA, routes its pilot oil internally and provides 180 l/min nominal flow.

Key benefits

• The 4...20 mA command input resists voltage picked up from converters and contactors.
• A broken wire shows up immediately as current below 4 mA, so the controller can react.
• 180 l/min nominal flow with 460 l/min maximum and 350 bar operating pressure.
• Pilot oil supplied and returned internally, leaving the manifold free of extra piping.
• Spool symbol W6, 12.2 kg, NBR seals, ISO 4401-07-07-0-05 connection pattern.

Applications

The valve is intended for feed and press axes in electrically noisy surroundings, for instance next to large drive cabinets. Diagnosis through the 4 mA live zero makes fault finding easier during operation. System pressure must stay above the minimum pilot pressure at all times.

Manufacturer

Bosch Rexroth, material number R901419768, product family 4WRZ(E). Signal assignment and characteristic curves are in data sheet RE 29115, RE 07600-B places the series in context.