Directional Spool Valve H-4WEH25HD6X/OF6EG220N9K4 - Bosch Rexroth R900975681

Large cylinders need cross section, otherwise the valve turns into a restriction. The H-4WEH25HD6X/OF6EG220N9K4 offers up to 700 l/min in size 25 at 350 bar maximum operating pressure and takes pilot oil from an external circuit, with an external return.

Benefits

• 700 l/min flow at 350 bar maximum operating pressure in size 25 on the ISO 4401-08-08-0-05 pattern.
• Pilot oil fed in and drained externally, the pilot stage stays decoupled from the main circuit.
• 220 VDC supply voltage through a 3-pole (2 + PE) plug to EN 175301-803.
• Spool symbol D, two switching positions, four ports with solenoid actuation of the pilot stage.
• 17.91 kg weight, NBR seals for HL hydraulic fluid, UKCA conformity to SI2016/1091.

Applications

The valve is used on main axes of presses, forging hammers and large lifting gear. The external pilot circuit can be protected once for several pilot-operated valves of a power unit. For 24 V controls, a different solenoid version of the same series has to be specified.

Manufacturer

Bosch Rexroth, material number R900975681. Performance limit curves, switching times and dimensions are given in data sheet RE 24751.