Proportional Directional Valve 4WRZ10E3-85-7X/6EG24ETK4/D3M - Bosch Rexroth R901121213

When a cylinder has to reach a position and change speed on the way, a switching directional valve is not enough. The 4WRZ10E3-85-7X/6EG24ETK4/D3M is pilot-operated and proportional, it carries 85 l/min nominal flow in size 10 and passes a maximum of 170 l/min.

Benefits

• 85 l/min nominal flow in size 10, with a maximum of 170 l/min through the valve.
• Spool symbol E3 with 3 switching positions and 4 ports to connection diagram ISO 4401-05-05-0-05.
• Operating pressure up to 315 bar with NBR seals for HL hydraulic fluid.
• Internal pilot oil supply and internal pilot oil return, so separate X and Y lines are not required.
• Built-in pressure reducing valve keeps the pilot stage supply steady regardless of the main circuit.
• 8.24 kg weight and a 7-pole (6 + PE) connector to EN 175201-804 on 24 V DC.

Technical data

Applications

The valve suits feed and lifting axes on presses, test benches and injection moulding machines where speed changes within the cycle. External amplifier electronics convert the command value from the machine control. Mounting is on a subplate to ISO 4401-05-05-0-05.

Manufacturer

Bosch Rexroth, material number R901121213, product family 4WRZ(E). Characteristic curves, pilot oil demand and installation dimensions are given in the datasheets Proportional directional valve, pilot-operated (RE 29115) and Hydraulic valves and hydro- (RE 07600-B).