Proportional Directional Valve 4WRZ32W9-520-7X/6EG24N9EK4/V - Bosch Rexroth R900963070

Large press and lifting axes call for oil volumes that smaller sizes no longer supply. The 4WRZ32W9-520-7X meters 520 l/min nominal flow at operating pressures to 350 bar and works from an amplifier card outside the valve.

Benefits

• 520 l/min nominal flow in size 32, range maximum flow reaches 1600 l/min.
• External electronics keep ageing components out of the valve body, the card stays replaceable inside the cabinet.
• Mounting pattern ISO 4401-10-09-0-05 and subplate mounting suit existing large manifolds.
• FKM seals tolerate higher oil temperatures than NBR and suit warm surroundings.
• Spool symbol W9 with three switching positions, concealed auxiliary actuation, weight 43.34 kg.

Applications

The valve runs forging presses, lifting gear and large test cylinders. Pilot oil is supplied internally and relieved externally, and no additional pressure reducing valve is fitted. Pilot pressure taken from the main circuit therefore has to stay inside the permitted band.

Manufacturer

Bosch Rexroth, material number R900963070. The type code 4WRZ32W9-520-7X/6EG24N9EK4/V states size 32, spool symbol W9, 520 l/min nominal flow and component series 7X. Data sheet RE 29115 covers pilot-operated proportional directional valves, RE 07600-B gives the range overview.