Proportional Directional Valve 4WRZE32W9-520-7X/6EG24N9EK31/A1V - Bosch Rexroth R901227836

A ±10 V voltage command value is the most common interface in PLC and NC environments, and that is exactly what the 4WRZE32W9-520-7X/6EG24N9EK31/A1V listens to. The pilot-operated proportional directional valve in size 32 turns this signal into up to 1600 l/min, with 520 l/min nominal flow at 350 bar operating pressure.

Key benefits

• Analog ±10 V command value, direction and opening degree arrive in a single signal.
• 520 l/min nominal flow, 1600 l/min maximum, operating pressure up to 350 bar.
• On-board electronics, 24 VDC supply through the 7-pole connector (6 + PE) to EN 175201-804.
• Spool symbol W9 with 3 switching positions and 4 ports.
• FKM seals for HL hydraulic fluid.
• Mounting pattern ISO 4401-10-09-0-05, subplate mounting, 44 kg valve mass.

Applications

The valve is built for large cylinder axes in presses, test rigs and steel mill hydraulics. Pilot oil is supplied internally and returned externally, and no pressure reducing valve is fitted. The concealed auxiliary actuation helps during commissioning and fault finding. UKCA conformity to EMC SI2016/1091 is documented.

Manufacturer

Bosch Rexroth, material number R901227836. The data is based on data sheet RE 29115 for pilot-operated proportional directional valves, supplemented by RE 07600-B for hydraulic valves.