Proportional Directional Valve 4WRZ32E1-520-7X/6EG24N9K4/D3M - Bosch Rexroth R900724397

The larger the flow, the more a collapsing pilot pressure shows up in the motion. The 4WRZ32E1-520-7X/6EG24N9K4/D3M is therefore piloted entirely externally and carries a 520 l/min nominal flow in size 32.

Advantages

• Nominal flow of 520 l/min, up to 1600 l/min total flow.
• External pilot oil supply through X and external return through Y.
• Pressure reducing valve in the pilot stage holds pilot pressure at a fixed value.
• Operating pressure up to 350 bar, spool symbol E1, three switching positions.
• Concealed manual override, connection diagram ISO 4401-10-09-0-05.
• Weight of 43.4 kg, NBR seals, driven by external amplifier electronics.

Applications

It is used on main axes of large presses and on adjusting cylinders in plant engineering. The dedicated pilot circuit holds the ramp even when main pressure drops sharply. The manifold has to provide X and Y.

Manufacturer

Bosch Rexroth, material number R900724397. 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.