Proportional Directional Valve 4WRZE32W8-520-7X/6EG24N9K31/F1D3V - Bosch Rexroth R900616717

A 4 to 20 mA current signal stays stable over twenty metres of cable, and that is how this 4WRZE32W8-520-7X is driven. The on-board electronics convert the command value at the valve itself, while the pilot stage with its pressure reducing valve drives the main stage to 520 l/min nominal flow.

Key benefits

• Command value 4 to 20 mA, insensitive to voltage drop on long cable runs.
• 520 l/min nominal flow, flow up to 1600 l/min at 350 bar operating pressure.
• Size 32 with ISO 4401-10-09-0-05 interface, subplate mounting.
• External pilot oil supply and external return, pilot pressure can be chosen independently of the main circuit.
• FKM seals, HL hydraulic fluid, 24 VDC supply through a 7-pole connector (6 + PE).
• Concealed manual override for commissioning without electrical command.

Applications

The valve is used in presses, rolling mills and test rigs where the manifold sits far from the control cabinet. External pilot oil supply allows a dedicated, constant pilot pressure, which improves repeatability when system pressure fluctuates strongly. Its 44.57 kg call for a correspondingly rated subplate.

Manufacturer

Bosch Rexroth, material number R900616717. Characteristic curves, performance limits and installation dimensions are given in data sheet RE 29115, with a series overview in catalogue RE 07600-B.