The Stainless Steel 532 Series Flashback Arrestor prevents the transmission of flame in the supply line and equipment of corrosive and high purity gas systems. An automatic valve in the 532 Serie3s Flash Arrestor cuts off gas supply in the event of flame stabilization inside the body. The arrestor incorporates a non-return valve to prevent reverse flow of gases. 532 Series Stainless Steel Flashback Arrestors meet the safety requirements of BS6158 and ISO5175, Heavy Class 1.