Proportional Directional Valve 4WRZE25W9-220-7X/6EG24N9K31/F1D3V - Bosch Rexroth R901313518

If system pressure swings, the pilot stage swings with it unless something prevents that. The 4WRZE25W9-220-7X/6EG24N9K31/F1D3V has a pressure reducing valve built in for exactly this and controls 220 l/min nominal flow at up to 870 l/min maximum flow.

Benefits

• Built-in pressure reducing valve in the pilot stage, constant control pressure.
• 220 l/min nominal flow in size 25, up to 870 l/min maximum flow.
• Command value 4 to 20 mA, current loop at 24 V DC.
• Symbol W9, three switching positions, connection diagram ISO 4401-08-08-0-05.
• FKM seals for higher oil temperatures, operating pressure up to 350 bar.
• Concealed manual override plus UKCA evidence SI2016/1091, weight 20.88 kg.

Applications

The valve is used in plants with widely varying system pressure, for instance presses with several actuators on one circuit. The built-in reducing valve holds the pilot stage at a constant level, so the characteristic stays repeatable through the cycle.

Manufacturer

Bosch Rexroth, material number R901313518, product family 4WRZ(E). Series 7X together with symbol W9 appear in the type code 4WRZE25W9-220-7X/6EG24N9K31/F1D3V. Characteristic curves and installation dimensions are in data sheet RE 29115 and RE 07600-B.