•Designed to keep the valve in the shut-off position when the solenoid is de-energized, even if the handle is lifted
•The valve will not be in the open position until the solenoid is energized and auxiliary air is present
•Once the solenoid is de-energized, it requires power to be restored to the solenoid, then the valve to be manually reset
•Designed to meet vibration and/or shock per ISA specification S71.03C2
•Handles aggressive atmosphere per salt resistance testing (ASTM B117)
•SIL 3 capable, certified by Exida
•Optional position indicator switch provides diagnostic feedback (GO™ Switch, suffix SP)

