Proportional Directional Valve 4WRZ32W8-360-7X/6EG24N9TK4/D3M - Bosch Rexroth R900779472

Many large manifolds carry a central pilot pressure line but no second tank port. The 4WRZ32W8-360-7X/6EG24N9TK4/D3M therefore takes pilot oil from outside and discharges it internally to T at a 360 l/min nominal flow.

Advantages

• External pilot feed through X with internal return to T.
• Nominal flow of 360 l/min, up to 1600 l/min total, operating pressure up to 350 bar.
• Pressure reducing valve in the pilot stage holds pilot pressure constant.
• Spool symbol W8 with three switching positions on four ports.
• Concealed manual override, connection diagram ISO 4401-10-09-0-05.
• Weight of 43.8 kg, NBR seals, driven by external amplifier electronics.

Applications

The version is intended for large manifolds with a central pilot pressure grid and an unpressurised tank gallery. It saves one fitting and with it a potential leak point. Back pressure in the tank line has to be limited when the return is internal.

Manufacturer

Bosch Rexroth, material number R900779472. Product family 4WRZ(E). Further details are given in data sheet RE 29115 on the pilot-operated proportional directional valve and in the overview RE 07600-B.