Proportional Directional Valve 4WRTE27E1-500P-4X/6EG24EK31/A1M - Bosch Rexroth R901117791

Large flows and fine starting normally exclude each other, because a few percent of spool travel already release a lot of oil. This size 27 valve solves that with a characteristic that has a fine control range, and still meters 500 l/min nominal flow at flows up to 1000 l/min.

Benefits

• 500 l/min nominal flow, flow up to 1000 l/min through the valve.
• Characteristic with a fine control range, sensitive starting despite the large spool rating.
• Internal spool position feedback for high repeat accuracy of the spool position.
• Internal control-oil take-off with external return, operating pressure up to 270 bar.
• Spool symbol E1, 4 ports, 3 switching positions, connection diagram ISO 4401-08-07-0-05.
• ±10 V command value, 24 VDC supply, NBR seals, weight 19.5 kg.

Applications

The valve is used on large feed and lifting axes, on presses that clamp slowly after a fast approach and on test cylinders. The control-oil return has to run separately to tank. The permitted operating pressure of 270 bar is lower than in size 25 and has to be respected during layout.

Manufacturer

Bosch Rexroth, material number R901117791. Product family 4WRTE, pilot-operated spool valve with on-board electronics and subplate mounting.