Directional Spool Valve 4WEH16HD7X/OF6EG24N9ETSK4/B10 - Bosch Rexroth R900619139

An extra pilot line means two more fittings and one more place to leak. The directional spool valve 4WEH16HD7X/OF6EG24N9ETSK4/B10 takes pilot oil internally from the pressure line and returns it internally to tank, so a manifold rated for 300 l/min needs no separate pilot lines at all.

Benefits

• Internal pilot oil supply and internal pilot oil return, the external X and Y ports on the manifold are no longer needed.
• Size 16 for up to 300 l/min, mounting pattern ISO 4401-07-07-0-05.
• Maximum operating pressure 280 bar across four ports and two switching positions to symbol D.
• 24 VDC solenoid actuation with a 3-pole connector (2 + PE) according to EN 175301-803.
• NBR seals, HL hydraulic fluid, subplate mounting without pipe fittings on the valve itself.
• 10.77 kg for the complete pilot-operated assembly.

Applications

It suits power units whose main line pressure stays above the minimum pilot pressure, for example machine tools and clamping systems running a standing system pressure. Because pilot supply and return stay inside the valve, piping work on the manifold remains small. For circuits where P is frequently unpressurised, the version with external pilot oil supply is the better choice.

Manufacturer

Bosch Rexroth, material number R900619139, product family H-4W.H.. Characteristic curves and installation notes are given in data sheet RE 24751, and the overview RE 07600-B places the valve within the range.