Proportional Directional Valve 4WRZE32W9-520-7X/6EG24N9EK31/F1D3M - Bosch Rexroth R900720625

The job is stepless directional control over a long cable run. The command value arrives as a 4 to 20 mA current signal, which is insensitive to voltage drop along the way. On the hydraulic side the valve provides 520 l/min nominal flow in size 32 at 350 bar operating pressure.

Key benefits

• Command value 4 to 20 mA as a current interface, robust against voltage drop on long cables
• 520 l/min nominal flow in size 32, flow ceiling 1600 l/min
• 350 bar maximum operating pressure on connection diagram ISO 4401-10-09-0-05
• 24 VDC supply through a 7-pole connector (6 + PE) to EN 175201-804
• NBR seals for HL hydraulic fluid, internal pilot oil supply with external return
• 44.12 kg weight, spool symbol W9 with 3 switching positions and 4 ports

Applications

Suited to widely spread installations where the control cabinet and the power unit sit far apart, for example in rolling mills, test fields and long press lines. The concealed auxiliary actuation allows movement at commissioning before the current loop is live. In every other respect the valve matches the standard 4WRZ(E) build in size 32.

Manufacturer

Bosch Rexroth, material number R900720625, UKCA conformity to SI2016/1091 for electromagnetic compatibility. Further data is in data sheet RE 29115 for the pilot-operated proportional directional valve and in the overview RE 07600-B.