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Products > Cartridge Seals

SINGLE CARTRIDGE SEALS

AST 70 AST 70

The AST 70 is a simple-to-install, unitized cartridge mounted, balanced, multiple spring seal which requires no measuring for installation.  It is the basic mechanical seal of choice for ANSI pumps (including enlarged bore seal chambers), vertical pumps, split case pumps, and many more.


AST 7023

The AST 7023 seal is the off-the-shelf solution for hot liquid sealing with ANSI Plan 7323 (API Plan 23).  Its built-in pumping ring fits in enlarged bore seal chambers on popular ANSI pumps.



DUAL CARTRIDGE SEALS

AST 80 AST 80 enlarged bore

The AST 80 dual mechanical 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.


 

AST 80M

The AST 80M Seal is a rugged dual mechanical seal built for use in mixers, agitators, double-ended pumps, and other rotating equipment in demanding service.  With its large internal clearances, the AST 80M tolerates shaft runout and end play that would make another seal fail.