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Swagelok Quebec Group

Your Authorized Swagelok Sales and Service Center

API Plan 76 Noncondensing Leakage Collection

API Plan 76 collects leakage from the inboard seal in applications where normal process fluid leakage does not condense between the seals at ambient temperatures. In this piping plan, gaseous leakage from the inner seal exits through the containment seal vent port in the gland. The orifice creates the necessary back-pressure for a pressure transmitter to signal an alarm in the event of a seal failure.

plan 76 

Benefits:

  • Monitors inner seal leakage that does not condense at ambient temperatures
  • Is typically used in conjunction with a Plan 72

See page 63 of the Mechanical Seal Support Systems Applications Guide for additional details.

Questions?

Contact your local distributor