Directional Spool Valve 4WEH 16 J7X/6EG24NK4/10B08 - Bosch Rexroth R978919241

When the pilot stage of a manifold is fed from a source of its own, the directional valve has to draw and return pilot oil externally. That is exactly how this 4WEH 16 J7X/6EG24NK4/10B08 is built, working with spool symbol J and a flow of up to 300 l/min.

Benefits

• External pilot oil supply and external pilot oil return, matched to a dedicated pilot pump
• Spool symbol J with 3 switching positions and 4 ports
• 300 l/min flow at a maximum operating pressure of 280 bar
• 8.9 kg weight in the ISO 4401-07-07-0-05 interface
• 24 VDC solenoid actuation through a 3-pole (2 + PE) connector to EN 175301-803, NBR seals for HL hydraulic fluid

Technical data

Application

The usual place for this version is a manifold where one small pump supplies every pilot stage at once. A separate pilot circuit can then be filtered and monitored on its own, independently of the state of the main circuit. As a subplate mounted size 16 valve it sits on an interface to ISO 4401-07-07-0-05.

Manufacturer

At Bosch Rexroth the valve carries material number R978919241. Switching diagrams, pilot oil demand and tightening torques are listed in datasheet RE 24751, with RE 07600-B as further reading.