Proportional Directional Valve 4WRZE16W6-180-7X/6EG24N9ETK31/A1D3M - Bosch Rexroth R901426377

Less piping means fewer places to leak. On this pilot-operated size 16 proportional valve both pilot oil supply and pilot oil return run internally, and control is by ±10 V at 180 l/min nominal flow.

Key benefits

• Pilot oil taken and returned internally, so both external control lines disappear from the manifold.
• 180 l/min nominal flow, up to 460 l/min maximum, operating pressure up to 350 bar.
• The integrated pressure reducing valve keeps the pilot stage independent of fluctuating working pressure.
• Analog ±10 V command value, with the electronics on the valve needing only a 24 VDC supply.
• Spool symbol W6, NBR seals, 12.2 kg on an ISO 4401-07-07-0-05 pattern.

Applications

The fully internal pilot version is the standard pick for manifolds that are rarely serviced in the field. It fits presses, hoists and special-purpose machines with steady system pressure. If system pressure collapses during the cycle, a version with external pilot oil supply is the better choice.

Manufacturer

Bosch Rexroth, material number R901426377 from the 4WRZ(E) product family. Minimum pilot pressure and characteristic curves are in data sheet RE 29115, the full range is shown in RE 07600-B.