Description OPW 23-0055 Open Atmospheric Vent is installed on the top of vent pipes from underground or above ground fuel storage tanks. The vent is always open to the atmosphere and allow any pressure or vacuum in the tank to vent.
OPW 23-0055 Open Atmospheric Vent is installed on the top of vent pipes from underground or above ground fuel storage tanks. The vent is always open to the atmosphere and allow any pressure or vacuum in the tank to vent.