Proportional Directional Valve 4WRZE32E1-520-7X/6EG24N9K31/F1D3M - Bosch Rexroth R901115876

Long cable runs between cabinet and valve favour a current signal, so this version takes 4 to 20 mA as its command value and produces 520 l/min nominal flow from it.

Key benefits

• 4 to 20 mA command value stays unambiguous over long cable runs, a broken wire shows up in the signal level.
• Spool symbol E1 with 3 switching positions on 4 ports, fixed by interface ISO 4401-10-09-0-05.
• 520 l/min nominal flow at a maximum flow of 1600 l/min and 350 bar operating pressure.
• External pilot oil supply and return, together with an integrated pressure reducing valve for constant pilot pressure.
• 44.12 kg installed mass, 24 VDC through a 7-pole connector (6 + PE) to EN 175201-804.

Technical data

Applications

Rolling mills, foundry equipment and widely distributed power units are the target, wherever the signal line has to bridge several dozen metres. Separated pilot oil routing also makes fault finding on the pilot circuit easier. Operation is on HL fluid with NBR seals.

Manufacturer

Bosch Rexroth, material number R901115876, product family 4WRZ(E). The relation between command signal and flow is documented in data sheet RE 29115, general notes appear in RE 07600-B.