... And they are designed for installation into a pipe body, tank or pressure vessel using standard pipe size. They are easy ... Steam3,High power is available, various material4,Safe and efficient How to choose the right material for the flange heaters?Pls check ... table as follows: Copper SheathWater heating, water solutions non-corrosive to copper.Stainless Steel SheathImmersion in oils, molten salt baths, ...