Proportional Directional Valve 4WRZE25W6-220-7X/6EG24N9K31/A1M - Bosch Rexroth R900707647

When a valve is replaced in a machine that has grown over the years, the control card and the pilot piping should stay untouched. This version suits that situation, because it processes the ±10 V command and takes pilot oil externally as well as returning it externally, at 220 l/min nominal flow.

Benefits

• ±10 V command stays compatible with existing analogue outputs and axis controllers.
• Fully external pilot routing matches existing X and Y lines on the manifold.
• 220 l/min nominal flow at 350 bar, 870 l/min at peak.
• On-board electronics make a separate amplifier card unnecessary.
• ISO 4401-08-08-0-05 size 25 interface, weight 20.2 kg.

Applications

The typical case is a replacement on existing presses, machine tools and test benches without rebuilding the piping. Before installation the signal range of the existing card should be checked against the command input. The valve runs on HL hydraulic fluid with NBR seals.

Manufacturer

Bosch Rexroth lists this product under material number R900707647. Characteristic curves and installation dimensions are given in data sheet RE 29115 and RE 07600-B.