... prevent mixture 3. Double plates provide safer operation Double-Wall Plate Heat Exchanger Composedof double thin plates, operator can easy ... ; Saving space, increasing heat transferefficiency; Easydisassembling & maintenance.Plate MaterialAustenitic stainless steelNickel-based alloyOthersAISI304,316,316L,317,904L,254SMONI200 ... ,etc.Viton F180High temperature grease,etc. Double-Wall Plate Heat Exchanger