Protego India Pvt. Ltd. Manufactures Burning Proof Deflagration Flame Arrester. The Burning Proof Deflagration Flame Arrester is most efficient the flame arrester for methane/air mixtures. Protego India Pvt. Ltd. Is an ISO 9001:2008 certified company. Protego India Pvt. Ltd. Is a 100% subsidiary of Braunschweiger Flammenfilter, GmBH, Germany engaged in manufacturing of Flame Arrestors, Breather valves, emergency vents, Pilot Operated valves, Nitrogen Blanketing valves and Tank accessories for low pressure atmospheric tanks.