Proportional Directional Valve 4WRZ25E1-220-7X/6EG24N9TK4/D3M - Bosch Rexroth R901067284

The 4WRZ25E1-220-7X/6EG24N9TK4/D3M controls the direction and the size of the flow in a large axis. Nominal flow is 220 l/min, up to 870 l/min is possible at the limit and permissible operating pressure is 350 bar.

Benefits

• Nominal flow 220 l/min, maximum flow 870 l/min in size 25.
• Spool symbol E1, pilot-operated spool valve with 3 switching positions.
• External pilot oil supply, internal pilot oil return, plus a pressure reducing valve inside the pilot stage.
• External electronics, controlled through a 7-pole connector (6 plus PE) to EN 175201-804.
• 20.4 kg, NBR seals, connection diagram ISO 4401-08-08-0-05, 24 V DC supply.

Applications

The valve is used on main axes of presses, injection moulding machines and test rigs whose speed is controlled through flow. The external pilot supply keeps the pilot stage working even when there is no pressure in the main channel. Amplifier electronics are provided separately.

Manufacturer

The manufacturer is Bosch Rexroth, material number R901067284, product family 4WRZ(E). Data sheet RE 29115 describes characteristic curves and pilot variants, RE 07600-B places the series within the range.