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PD 75

Leakage Detection

Used to detect and monitor leakage of the inboard seal, these seal support systems can detect liquid leakage (API Plans 65 and 75) or gas leakage (API Plan 76), or a mixture of gas and liquid leakage (API Plan 75). A PD 75 (API Plan 75) collection system is used to monitor inner seal performance (level and pressure), where a dry-running secondary containment seal is applied to a process fluid that will condense at lower temperature or is always in a liquid state.

PD 75


  • Can be used to test the inner seal.
  • A PG 72 (API Plan 72) system can be used in conjunction with PD 75 to ensure fugitive emissions are not released to the environment.
  • Customized designs available to meet specific project requirements.
  • Includes a pressure transmitter to indicate a build-up in pressure from excessive inner seal leakage or failure.


Standard Materials

Carbon Steel (optional 316/L Stainless Steel)

Tubing/piping: 316/L Stainless Steel


3.4 US gallons/13 liters

Recommended Applications

  • Process Pumps
Works with:
PG 72 PG 72
Similar Products:
PD 65A/PD 65B PD 65A/PD 65B
PD 76 PD 76

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