Multi Spring Seal( Pusher Seal )Size 34" to 4"Pressure up to 25 BarTemp. -40 C to 280 CMeterials SS316, Alloy 20, Hast-C, Face Combination Carbon, SIC, TC, CeramicElastomers PTFE, Viton, Kalrez, Neoprene Nitrile, AflasApplications Widely Used in Viscous and Ardous Duties, Food and Braverage, crystallizing and solidefieng media, dye liquor applications, solvent application.