DANIELTM MODEL 788DVC DIGITAL CONTROL VALVES | D E C 2012 |
6.0TROUBLESHOOTING
The most frequent problem encountered with any control valve is the accumulation of sediment, rouge, scale and other foreign material in the pilot or its supply system. It is, therefore, good practice to periodically remove the pilot from the valve and inspect it for accumulation of these materials.
The strainer and needle valve in the pilot supply line should also be flushed periodically to avoid erratic control and slow response typical to obstructed flow. If
Periodic examination of all seal and
TROUBLESHOOTING |