Proportional Directional Valve 4WRZE32W6-520-7X/6EG24N9TK31/A1D3M - Bosch Rexroth R901391503

Rebuilding a hydraulic axis normally leaves the control level untouched, so the command value arrives as ±10 V. The 4WRZE32W6-520-7X feeds that voltage straight into its on-board electronics, converting it into a nominal flow of 520 l/min at 350 bar.

Benefits

• ±10 V command value keeps existing control cards in service without a signal converter, supply 24 VDC.
• Spool symbol W6 with three switching positions across four ports for reversing motion.
• 520 l/min nominal flow, while the size 32 body handles up to 1600 l/min.
• 350 bar operating pressure with NBR seals on HL hydraulic fluid.
• External pilot oil supply, internal pilot oil return, pilot stage fitted with a pressure reducing valve.
• 44 kg on the ISO 4401-10-09-0-05 pattern, wired via a 7-pole connector (6 + PE) to EN 175201-804.

Application

In rolling mills, test benches or presses the valve replaces older proportional units of the same frame size without touching the piping. The concealed auxiliary actuation shifts the spool while the valve is de-energised. Pilot oil returns internally, so an extra drain line to tank becomes unnecessary.

Manufacturer

Bosch Rexroth, material number R901391503, product family 4WRZ(E), conformity UKCA under SI2016/1091. Data sheet RE 29115 holds the curves plus installation notes, RE 07600-B gives the range overview.