Breather Vents & Tank Vents

Tank vents (AKA conservation vents, breather vents or pressure/vacuum relief valves) prevent tanks from exploding due to overpressure. They also prevent tanks from collapsing, or imploding, due to vacuum.

The vents relieve overpressure related to pumping fluids into the tank, atmospheric heating of the tank and heating of the tank due to fire that is external to the tank. They also relieve vacuum related to pumping fluids out of the tank and atmospheric cooling of the tank. The customer chooses the point at which the vents provide relief of either pressure or vacuum.

BS&B markets its tank vents under the TankSaf brand name.

Product Range

935 935-E 936-E 937-E 937-P 942-EV 942-MW 943 943-VM 944 945 945-EL 945-EL-E

Model 935

Pressure Vent, Deflagration and Endurance Burning Flame Arrester

Model 935-E

Pressure Vent and Deflagration Flame Arrester

Model 936-E

Vacuum Vent and Deflagration Flame Arrester

Model 937-E

Pressure & Vacuum Vent and Deflagration Flame Arrester

Model 937-P

Pressure & Vacuum Vent, Deflagration, and Endurance Burning Flame Arrester

Model 942-EV

Emergency Vent Pressure Vent

Model 942-MW

Emergency Pressure Relief Vent

Model 943

Pressure & Vacuum Vent

Model 943-VM

Vacuum Relief Valve

Model 944

Pressure and Vacuum Vent

Model 945

Pressure and Vacuum Relief Valve

Model 945-EL

Breather Vent with Pipe-Away Connection

Model 945-EL-E

Pressure and Vacuum Relief Valve with Pipe-Away Connection, Atmospheric Deflagration-Proof