Proportional Directional Valve 4WRZ25E1-325-7X/6EG24N9EK4/D3M - Bosch Rexroth R900973574

The 4WRZ25E1-325-7X/6EG24N9EK4/D3M takes the pilot oil internally and returns it through a line of its own. The pilot stage stays independent of back pressure in the return and nominal flow is 325 l/min.

Benefits

• Internal pilot oil supply, external return, pilot stage independent of tank channel back pressure.
• Nominal flow 325 l/min, maximum 870 l/min at 350 bar operating pressure.
• Spool symbol E1, pilot-operated spool valve with 3 switching positions.
• Integrated pressure reducing valve keeps pilot pressure independent of system pressure.
• 20.42 kg, NBR seals, connection diagram ISO 4401-08-08-0-05, external electronics.

Applications

The version is used on plants with long return lines or with filters and coolers in the tank channel. The back pressure that builds there otherwise affects the switching times of the pilot stage. Through its own return line the pilot stage stays unaffected.

Manufacturer

The manufacturer is Bosch Rexroth, material number R900973574, product family 4WRZ(E). Data sheet RE 29115 describes characteristic curves and pilot oil variants, RE 07600-B gives the range overview.