Emerson 788 DVC manual Open Control Position

DANIELTM MODEL 788DVC DIGITAL CONTROL VALVES D E C 2012

OPEN - CONTROL POSITION -

The normally closed solenoid is closed. The normally open solenoid is closed. Y-Port (P3) to Z-port (P2) is closed. X-port (P1) to Y-port (P3) is closed. The product cannot flow to or from the top of the piston. The piston is hydraulically locked in position until the electronic preset commands the valve to open or close as required to maintain the desired high flow rate, or low flow rate.

Figure 2-2. Open - Control Position

THEORY OF OPERATION 2-3