Proportional Directional Valve 4WRTE32E1-400P-4X/6EG24K31/A1M - Bosch Rexroth R901568259

A proportional valve without position feedback only sets its spool open loop, so friction and flow forces slip unnoticed into the deviation. The 4WRTE32E1-400P-4X/6EG24K31/A1M senses spool position internally and corrects it in a closed loop, at a nominal flow of 400 l/min and an operating pressure of up to 350 bar.

Key benefits

• Internal spool position feedback - the closed loop compensates friction and flow forces, which makes positioning repeatable.
• Linear characteristic with a fine control range - small command changes around mid travel act more gently than at the end of the curve.
• 400 l/min nominal flow - an intermediate step below the 600 version, with up to 1600 l/min possible by valve size.
• External pilot supply and external drain - the pilot circuit stays independent of the main circuit.
• Command value ±10 V, supply 24 VDC - on-board electronics on a 7-pole connector (6 + PE) to EN 175201-804.
• 35 kg on interface ISO 4401-10-09-0-05 - spool symbol E1, NBR seals, hydraulic fluid HL.

Applications

The valve is intended for axes that have to hold a position or a speed accurately, for example in forming presses with position control, test rigs and water engineering plants. Internal feedback allows tighter control loops than open loop proportional valves. For installation, pilot supply and pilot drain are routed separately.

Manufacturer

Made by Bosch Rexroth, material number R901568259. The full type code 4WRTE32E1-400P-4X/6EG24K31/A1M appears on the nameplate and governs reordering and spare part selection.