Proportional Directional Valve 4WRTE10W8-25L-4X/6EG24ETK31/F1M - Bosch Rexroth R901221966

An existing manifold rarely has spare ports for pilot oil. This version of the 4WRTE10W8-25L is fully internally piloted and can be fitted to existing size 10 manifolds without adding any lines.

Advantages

• Internal pilot oil supply and internal return, no extra lines on the manifold.
• Nominal flow of 25 l/min for fine feed movements at pressures up to 350 bar.
• Current command 4...20 mA, suitable for longer cable runs to the controller.
• Spool symbol W8, connection diagram ISO 4401-05-05-0-05, subplate mounting.
• Internal spool position feedback for repeatable characteristic curves.
• Weight of 9.44 kg, 24 VDC supply voltage, HL hydraulic fluid.

Applications

The version is intended for conversions on machine tools and test rigs where a switching valve is replaced by a proportional valve. Port P must carry sufficient pressure throughout the cycle. Back pressure in the tank line has to be checked when the return is internal.

Manufacturer

Bosch Rexroth, material number R901221966. Product family 4WRTE, spare parts and successor types are supplied by the manufacturer.