Proportional Directional Valve 4WRZE32W6-520-7X/6EG24K31/F1D3M - Bosch Rexroth R901130006

When a dedicated pilot pump feeds the pilot stage, the valve has to bring both pilot connections to the outside. The 4WRZE32W6-520-7X/6EG24K31/F1D3M is built that way and controls a nominal flow of 520 l/min at operating pressures up to 350 bar, commanded by 4 to 20 mA.

Benefits

• External pilot oil supply and external return separate the control circuit completely from the 350 bar working circuit.
• An additional pressure reducing valve inside limits pilot pressure independently of the source.
• Spool symbol W6, 3 switching positions, 4 ports to mounting pattern ISO 4401-10-09-0-05.
• Nominal flow of 520 l/min against a maximum flow of 1600 l/min.
• 24 VDC and a 4 to 20 mA command at a 7-pole connector (6 + PE) to EN 175201-804, weight 44 kg.

Applications

Installation in press lines, continuous casting plants and hydro power equipment with central pilot supply is typical. Response time stays the same there even when working pressure collapses briefly. The medium is mineral oil of class HL and the seals are NBR.

Manufacturer

Bosch Rexroth, material number R901130006. Limits and characteristic curves are stated in data sheet RE 29115, supplemented by the overview RE 07600-B.