Proportional Directional Valve 4WRZE32W6-520-7X/6EG24ETK31/F1D3M - Bosch Rexroth R901192110

A pilot-operated proportional valve is only as steady as its pilot pressure. The 4WRZE32W6-520-7X/6EG24ETK31/F1D3M therefore includes a pressure reducing valve, draws pilot oil internally and returns it internally, while metering 520 l/min nominal flow at up to 350 bar.

Benefits

• The integrated pressure reducing valve keeps pilot pressure constant even while working pressure varies up to 350 bar.
• Nominal flow of 520 l/min against a maximum flow of 1600 l/min, spool symbol W6 with 3 switching positions.
• A 4 to 20 mA command feeds the on-board electronics, powered by 24 VDC through a 7-pole connector (6 + PE) to EN 175201-804.
• Internal pilot oil supply and internal return save both pilot lines at the subplate.
• Mounting pattern ISO 4401-10-09-0-05 with UKCA conformity, weight 43.94 kg.

Applications

The valve controls large cylinders in presses, lifting gear and test rigs whose working pressure changes strongly over the cycle. Constant pilot pressure means that equal command values produce similar metering areas even at different load pressures. Mineral oil of class HL is intended, sealed with NBR.

Manufacturer

Bosch Rexroth, material number R901192110. Characteristic curves and installation notes appear in data sheet RE 29115, the range overview in document RE 07600-B.