Proportional Directional Valve 4WRZE25E1-220-7X/6EG24N9EK31/F1D3V - Bosch Rexroth R978911148

An oversized valve wastes resolution because the working point sits close to mid position. The 4WRZE25E1-220-7X/6EG24N9EK31/F1D3V therefore offers 220 l/min nominal flow instead of 325, while staying in size 25 with operating pressure up to 350 bar.

Benefits

• 220 l/min nominal flow, maximum flow of the size 870 l/min.
• Built-in pressure reducing valve, internal supply, external pilot oil return.
• 4...20 mA command value on 24 VDC, spool symbol E1, 3 switching positions.
• Concealed manual override, FKM seals for higher oil temperatures.
• ISO 4401-08-08-0-05 interface, 20.72 kg, UKCA conformity.

Applications

The smaller nominal step suits cylinders that never call for the full flow of the size. The control range then spreads across the whole signal span, which improves resolution. The valve is used in presses, clamping systems and test rigs.

Manufacturer

Bosch Rexroth, material number R978911148. The type code 4WRZE25E1-220-7X/6EG24N9EK31/F1D3V states size 25, spool symbol E1, 220 l/min nominal flow and a 4...20 mA command value. Further details are given in data sheets RE 29115 and RE 07600-B.