Proportional Directional Valve 4WRZE10W9-85-7X/6EG24N9EK31/A1D3M - Bosch Rexroth R900750045

Replacing a failed valve is mostly about matching signal type and oil routing. The 4WRZE10W9-85-7X with a plus or minus 10 V command, internal pilot supply and external return hits the most common combination while metering 85 l/min nominal flow.

Benefits

• A plus or minus 10 V command works straight off the analogue output of usual controller cards.
• Internal pilot oil take-off saves one feed line, the external return keeps the pilot circuit relieved.
• 85 l/min nominal flow, operating pressure to 315 bar, spool symbol W9 with three switching positions.
• On-board electronics inside the valve, powered by 24 VDC at a 7-pole connector (6 + PE) to EN 175201-804.
• Mounting pattern ISO 4401-05-05-0-05, weight 8.47 kg, NBR seals.

Applications

The version runs feed and press axes, plastics machinery and lifting gear. Because the electronics sit inside the valve, a separate amplifier card in the cabinet is no longer required. Concealed auxiliary actuation allows emergency moves without control voltage.

Manufacturer

Bosch Rexroth, material number R900750045. The type code 4WRZE10W9-85-7X/6EG24N9EK31/A1D3M states size 10, spool symbol W9, 85 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.