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Life Guard Silicon Carbide Seals

The Life Guard seal utilizes silicon carbide for its seal surfaces (primary ring and mating ring). This is more abrasion resistant than the carbon graphite and ceramic used in standard seals. They also run cooler if the pump is run dry, improving the life of the seal.

Mating Rings:
The O-Ring style of the Life Guard seal mating ring allows heat to dissipate into the pump casting. This keeps the seal at a lower temperature and dramatically improves the chances of the seal to survive a dry-run episode.

The bellows and primary ring of the Life Guard seal are pressure balanced. This results in cooler operation at higher pressures.