Series 80 has manual override, a mechanical device to open normally closed (NC) valves or close normally open (NO) valves without power. Valves can be fully opened and closed while de-energized, either under pressure or not. Manual override is used to actuate valves during power failure or in an array without disturbing the electrical sequencing or piping to these valves. Typical applications of the large orifice solenoid valves include oil, gas, petrochemical, pharmaceutical and food processing, air dryers, fuel oil and gas burners, and pumps.
Peter Paul Electronics Co. Inc.