Proportional Directional Valve 4WRZE25W9-325-7X/6EG24N9EK31/A1D3M - Bosch Rexroth R900782796

Back pressure in the tank line distorts pilot pressure when the pilot drain is not routed separately. The 4WRZE25W9-325-7X/6EG24N9EK31/A1D3M takes pilot oil internally and discharges it through a dedicated port, at 325 l/min nominal flow in size 25.

Benefits

• Internal pilot oil supply with external return, keeping pilot pressure independent of tank back pressure.
• 325 l/min nominal flow, 870 l/min maximum flow, operating pressure up to 350 bar.
• Pressure reducing valve in the pilot circuit, symbol W9 with three switching positions.
• Command value ±10 V DC, supply 24 V DC, 7-pole connector (6 + PE).
• Concealed auxiliary actuation, weight 20.79 kg, NBR seals.

Applications

The valve suits plants with strongly varying tank pressure, for example a shared return for several axes or filters in the return path. Its own pilot drain keeps piloting clear of those effects. In size 25 with mounting pattern ISO 4401-08-08-0-05 it replaces identical valves of the same range.

Manufacturer

Bosch Rexroth, material number R900782796. Characteristic curves, minimum pilot pressure and installation dimensions are in data sheet RE 29115, supplemented by RE 07600-B.