Proportional Directional Valve 4WRZE32E520-7X/6EG24N9TK31/A1D3M - Bosch Rexroth R901082755

Test benches run load changes that collapse system pressure within milliseconds, yet the valve must not drift away. The 4WRZE32E520-7X draws pilot oil from an external source, producing a nominal flow of 520 l/min at 350 bar from it.

Benefits

• External pilot oil supply keeps control pressure clear of load changes in the main circuit.
• Spool symbol E, three switching positions, four ports.
• 520 l/min nominal flow at a flow limit of 1600 l/min in size 32.
• ±10 V command on 24 VDC into the on-board electronics.
• 350 bar operating pressure, NBR seals, HL hydraulic fluid, 44 kg.
• Internal pilot oil return, subplate mounting ISO 4401-10-09-0-05, 7-pole connector (6 + PE) to EN 175201-804.

Application

Servo-hydraulic test rigs, material testing machines or accumulator-fed presses use this arrangement. The internal pilot return saves a line as long as the tank channel stays largely free of pressure. Concealed auxiliary actuation remains available for setup work along with fault handling.

Manufacturer

Bosch Rexroth, material number R901082755, product family 4WRZ(E). Data sheet RE 29115 states the permitted pilot pressure plus the curves, RE 07600-B places the series. Conformity UKCA under SI2016/1091.