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Type 2874

Non-contacting Dual Gas Seal Cartridge for Pumps

The Type 2874 is an internally pressurized, gas-lubricated, non-contacting dual cartridge seal designed for use in API, ANSI and DIN large-bore seal chambers.

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  • ID to OD pumping spiral groove arrangement places process fluid at the OD of the inboard seal.
  • Eliminates low flow regions in close proximity to inboard seal
  • Reduces dewatering and hang-up
  • Rotating mating ring imparts centrifugal flow to fluid in the seal chamber, which keeps fluid moving and helps prevent solids from falling out of solution.


Temperature Limits

-30°F to 500°F/-34°C to 260°C

Pressure Limits

Vacuum to 600 psi(g)/(41 bar(g)

Maximum differential pressure (process/inbd) is 150 psi(g)

Speed Limits

1450 to 3600 rpm

Consult engineering for low- or high-speed designs.


1.375 to 4.000"

Consult engineering for non-standard sizes.

Recommended Applications

  • Process Pumps
  • Other Rotating Equipment

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