DG5VC-H8-6B-PS2-H-86-JA | Solenoid Controlled Pilot Operated Directional Control Valve

Mounting orientation: To ensure sure switching of no spring detented type valves, mount valves so the spool axis is horizontal. There are no mounting attitude restrictions for another spool/spring arrangement.

Solenoid energization: Always ensure that one side solenoid is de-energized before energizing the opposite side solenoid. For spring-centered and spring offset valves, the solenoid should be continuously energized during circuit switching. de-energization of the solenoid will cause the spool to return to the prescribed position by spring force. For no spring detented type valves, the spool will be maintained in switched position by the detent but to ensure sure circuit switching, the solenoid should be energized for more than 0.1 seconds.

Long periods of solenoid energization: Care should be paid as long periods of solenoid energization at high pressure may cause spool sticking and switching malfunction.

Drain and pilot: For internal drain type valves, pilot pressure (P port pressure of internal pilot valves) must be higher than min. pilot pressure + tank line back pressure. Therefore the pressure difference must be maintained even when surge pressures occur in the tank line. An external drain type valve is recommended when surge pressures may occur in the tank line. The drain line should also be piped directly to the tank. In the case of an internal drain valve with spring sets B, C, and D and spool types 0, 1, 4, 8, 9, and 11, an internal pilot type valve cannot be used if the P to T port pressure drop during solenoid de-energization falls below minimum pilot pressure. Use an external pilot type valve in this case.

Manual operation: For manual switching, push the manual override pin. Be aware that actuation force increases with higher back pressure. 

Solenoid indicator lamp: For valves with indicator lamps, the lamps will light when current flows to the solenoid.