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Products By Manufacturer


AST Mechanical Seals

AST50 Outside Seal - Designed for extremely corrosive environments, the AST50 single outside mounted seal has no metal parts in contact with the sealed liquid.  It's the ideal seal for nonmetallic pumps.


AST60 Inside Seal - The AST60 inside mounted seal is a simple upgrade for existing component seal applications.  The AST60 design is hydraulically balanced and will not fret the pump shaft.


AST70 Single Cartridge Seal - The AST70 cartridge mounted single seal is a simple-to-install, balanced, multiple spring design that requires no measuring for installation.  It is the basic mechanical seal of choice for ANSI pumps (including enlarged and taper bore seal chambers), vertical pumps, split-case pumps and many more.


AST80 Dual Cartridge Seal - The AST80 dual seal is cartridge mounted for easy installation and incorporates liquid shear pumping action to remove heat from the seal faces.  This design can be operated with either a pressurized or non-pressurized buffer fluid system.