U Series

For corrosive/non-corrosive high pressure services

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  • Brands:
  • Industries:
    Distillation, Delayed Coking, Hydrocraking, Boiler Circulation Systems, Hydrotreating, Water Injection, Logistics and Tank Farm, Water Handling and Treatment, Miscellaneous Services, Boiler Circulation Systems, Products Pipeline, Boiler Feedwater Systems, SAGD, Boiler Feedwater Systems, Heavy Oil and Upgrading, Catalytic Cracking, Steam Systems, Condensate Systems, Steam Systems, Condensate Systems, Utilities, Cooling Systems, Cooling Systems, Crude Handling and Treatment, Crude Pipeline, Alkylation
  • Standards:

The UC seal is designed for corrosive/non-corrosive high pressure services with a specific gravity of .45 or higher. The canned "UC" seal design incorporates all of the same rugged high pressure design features as our standard "U" seal while incorporating a state-of-the-art encapsulated graphite gasketed silicon carbide rotating face. The UC seal's canned face design provides optimum low level emissions control.

High Balanced loe emission light hydrocarbon design, same operating limits as UC, specific gravities down to 0.45 with multi-port flush.

As above, with 4-piece rotating face and high pressure stationary face, Pressure: To 1500 psi (103.4 bar).

UC Chart

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UC Series Seal Brochure

Single pusher seal for heavy duty applications and general services

U Series Installation Instruction

Installation Instructions for the U, UC, UO, UCQ, UOP, UOPQ, UZ

UC Seal Brochure - Russian

Single pusher seal for heavy duty applications and general services

Magnetic Separator

Description: Designed for mechanical seal injection flow (plan 23)

682 Seal Cooler

Description: Support system for various refinery services

DHTW/UHTW Series custom engineered seals for heavy duty applications

Description: Designed for the Power Industry, the DHTW seal has the ability to survive low or lost suction conditions for short time frames.


Description: Balanced rotating single spring seal for the power industry or other high pressure applications. The design is identical to the U seal, except for the pumpring slots in the rotating face. Using an API plan 23 system to keep the seal cool, this seal is used in hot water and flashing hydrocarbon applications.

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