Proportional Directional Valve 4WRZE32E520-7X/6EG24N9TK31/F1D3M - Bosch Rexroth R901424872

Large press halls often put thirty metres of cable between controller and valve block, which is exactly where a voltage command loses precision. The 4WRZE32E520-7X therefore works with a 4 to 20 mA current command, turning it into a nominal flow of 520 l/min at 350 bar operating pressure through spool symbol E.

Benefits

• 4 to 20 mA current command stays unambiguous over long cable runs, powered from 24 VDC.
• 520 l/min nominal flow in size 32, with the valve body passing up to 1600 l/min.
• 350 bar operating pressure with NBR seals on HL hydraulic fluid.
• On-board electronics remove the separate amplifier card, wired through a 7-pole connector (6 + PE) to EN 175201-804.
• External pilot oil supply with internal pilot oil return, backed by a pressure reducing valve in the pilot stage.
• ISO 4401-10-09-0-05 interface for subplate mounting, 43.38 kg, four ports across three switching positions.

Application

Presses as well as forging lines are the usual place for this valve, where one large cylinder follows a metered flow profile. The concealed auxiliary actuation lets an operator move the machine into a safe position by hand if the electrical supply fails. A dedicated pilot feed keeps control pressure steady even when the main circuit drops for a moment.

Manufacturer

Bosch Rexroth, material number R901424872, product family 4WRZ(E). Curves, mounting position data plus pilot pressure figures are documented in data sheet RE 29115, with the overview RE 07600-B alongside. Conformity is declared as UKCA under SI2016/1091.