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AST seals AST 80M Dual Cartridge SealAST 80 Dual Cartridge SealAST 80 Dual Cartridge SealAST 70 Single Cartridge SealAST 50 Outside SealAST 60 Inside SealAST 70 Single Cartridge Seal

AST manufactures a complete line of cartridge and component mechanical seals for process pumps. The AST 70 single cartridge seal has become the standard for harsh applications. The AST 80 dual cartridge seal incorporates liquid shear pumping to remove heat from the seal faces, and can be operated with a pressurized barrier or non-pressurized buffer fluid system. All AST seals are field-rebuildable, giving pump users control over their schedule and budget.