Proportional Directional Valve 4WRZ16E180-7X/6EG24N9EK4/D3M - Bosch Rexroth R901474138

A filter or cooler in the return creates back pressure that can distort the pilot stage of a proportional valve. This version 4WRZ16E180-7X/6EG24N9EK4/D3M therefore drains pilot oil through a port of its own, takes it internally and meters a nominal flow of 180 l/min.

Benefits

• Internal pilot oil supply with external pilot oil return, insensitive to back pressure in the return.
• Nominal flow 180 l/min, maximum flow 460 l/min at up to 350 bar.
• Version with pressure reducing valve for a constant pilot pressure.
• Spool symbol E, three switching positions on four ports, concealed auxiliary actuation.
• Electrical control with external electronics, 24 VDC, connector 7-pole (6 + PE) to EN 175201-804, weight 11.8 kg.

Application

The valve is used in plants with return filters, coolers or long tank lines where back pressure is present. The setpoint is provided by external amplifier electronics. Mounting is on a subplate to ISO 4401-07-07-0-05.

Manufacturer

Bosch Rexroth lists the valve as type 4WRZ16E180-7X/6EG24N9EK4/D3M of product family 4WRZ(E) under material number R901474138. Data sheet RE 29115 and overview RE 07600-B supply characteristic curves and installation dimensions.