Cartridge Seals Definition
Cartridge seals are complete seal units containing a gland, flush ports, sleeve, seal faces, o-rings, set screws, and gaskets.
Types of Cartridge Seals
- Single Cartridge Seals
- Double Cartridge Seals
Single Cartridge Seals
A cartridge seal will have the following elements: Gland, Sleeve, Seal faces (2 or 4), an energizing force source (single spring, multiple springs, metal bellows, or elastomer), and a lock collar to set it to the shaft.
Double Cartridge Seals
A double cartridge type mechanical seal is a pre-assembled package of seal components (including 4 seal faces) making installation much easier with fewer points for potential installation errors to occur.