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Mechanical Seals

Atlantic Pump distributes mechanical seals for the vast array of equipment pumping liquids and gases in the Chemical, Sanitary, Industrial, Commercial, Water & Waste Water, Pharmaceutical, and Personal Care markets.   Atlantic Pump distributes the +John Crane line of mechanical seals.

Mechanical Seals Types:

  • Component seals
  • Single seals
  • Double seals
  • Cartridge seals
  • Dry Gas seals
  • Non-Contacting seals
  • Split seals
  • Slurry seals
  • Metal Bellows seals
  • Vessel and Agitator seals
  • Labyrinth seals

Atlantic Pump provides seals for heating and cooling, as well as for leakage detection, for wet and dry seal environmental systems.

Contact Atlantic Pump using the form on the right for assistance selecting the right seals, or learn more about +John Crane Mechanical Pump Seals.

Mechanical Seal Definitions

  1. Component Seals are standard mechanical seals used in centrifugal pumps. In fact most standard mechanical seals are component seals. Incorrectly installing or adjusting these seals causes failures.
  2. Single seals are composed of two flat surfaces that slide against each other, pressed together with a spring. A fluid film is between the surfaces. These seals can be useful when the product being pumped isn’t harmful to the environment.
  3. Double seals consist of two seals – one to keep the product in the pump housing, and the other to prevent liquid from leaking into the atmosphere. Double seals are often used for hazardous fluids, when temperature or pressure conditions are high, or in polymerizing sticky fluid.
  4. Cartridge seals have components that are pre-assembled in a housing. The spring tension is preset, and the seal is installed from the dry side of the seal chamber.
  5. Dry Gas seals are dry-running, non-contacting seals. These seals are specified in harsh working environments like oil refineries or chemical processors.
  6. Non-Contacting seals are highly durable seal that keep ownership and operation costs low.
  7. Split seals combine disparate requirements for wet and dry running onto a single seal platform.
  8. Slurry seals are used in abrasive slurry environments. The special design of slurry seals allows them to operate without a flush, thereby lowering total ownership cost.
  9. Metal Bellows seals prevent clogging and allow high rates of flow. These seals create a uniform outside wall so product can move uniformly under hydraulic pressure.
  10. Vessel and Agitator seals are dry-running mixer and agitator seals that meet the requirements of explosive atmospheres. Vessel and agitator seals are commonly used for chemical and pharmaceutical industries.
  11. Labyrinth seals are used to store oil and seal against high pressure. They usually have a long service life due to low friction, which prevents leakage.