Protectoseal has been an industry pioneer and leading manufacturer of quality products that conserve and control volatile emissions and protect low pressure storage tanks, vessels and process from fire and explosion for over 95 years. Protectoseal’s integrated line of pressure and vacuum relief vents, flame and detonation arresters and related vapor control devices are most often used in liquid storage and processing applications found in many industries including but not limited to: Chemical and Petrochemical, Oil, Gas and Petroleum, Bulk Storage, Alternative Fuels, Pharmaceuticals, Food / Beverage, Semiconductor, Pulp and Paper.