Proportional Directional Valve 4WRZE32W6-520-7X/6EG24N9ETK31/F1D3V - Bosch Rexroth R978914272

Moving 520 l/min through one axis turns the pilot circuit into a plumbing decision. This 4WRZE valve in size 32 feeds its pilot stage internally and returns pilot oil internally, so only the working lines reach the subplate. Operating pressure runs to 350 bar with a flow ceiling of 1600 l/min, and the command signal is a 4 to 20 mA current input.

Key benefits

• 520 l/min nominal flow and a 1600 l/min ceiling in size 32
• Internal pilot oil supply and internal pilot oil return, no additional pilot lines on the subplate
• 4 to 20 mA command value, a current signal that survives long cable runs to the cabinet
• 350 bar operating pressure, connection diagram ISO 4401-10-09-0-05 for subplate mounting
• On-board electronics plus concealed auxiliary actuation, supplied with 24 VDC on a 7-pole connector (6 + PE)
• FKM seals for HL hydraulic fluid, weight 44 kg

Applications

Valves of this size work in presses, rolling mills and large test rigs where one axis moves a lot of oil in a short stroke. Spool symbol W6 with 3 switching positions and 4 ports serves four-way operation. The pressure reducing valve in the pilot circuit keeps pilot pressure steady while working pressure changes.

Manufacturer

Bosch Rexroth, material number R978914272. Characteristic curves and mounting dimensions are in data sheet RE 29115, the range overview is RE 07600-B. UKCA conformity to SI2016/1091 for electromagnetic compatibility.