Proportional Directional Valve 4WRZE32W8-520-7X/6EG24N9ETK31/F1D3M - Bosch Rexroth R901074813

A subplate without X and Y bores only accepts valves with an internal pilot path, which is what this version offers at 520 l/min nominal flow on a 4 to 20 mA current command.

Key benefits

• Pilot oil supplied and returned internally, so the existing subplate needs no additional bores.
• 4 to 20 mA current command with detectable wire break, supplied from 24 VDC.
• 520 l/min nominal flow in a body rated for a maximum flow of 1600 l/min.
• Spool symbol W8 with 3 switching positions and 4 ports to ISO 4401-10-09-0-05.
• 44 kg installed mass, integrated pressure reducing valve, NBR seals on HL hydraulic fluid.

Applications

Modernisation projects ask for this version whenever the valve station stays in place and only the control element is exchanged. The current command tolerates long signal runs to the control room. Electrical hookup is a 7-pole connector (6 + PE) to EN 175201-804.

Manufacturer

Bosch Rexroth, material number R901074813, product family 4WRZ(E). Data sheet RE 29115 compares the pilot oil variants, RE 07600-B summarises the general information on hydraulic valves.