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PR 52/PR 53A


These reservoir-based seal support systems are designed for both API Plan 52 and 53A applications to support unpressurized and pressurized dual seals. Circulation of barrier fluid is normally achieved with a pumping ring (or optional circulating pump), and a range of heat exchangers can be packaged with the system — selection dependent on available plant utilities.

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  • California Residents: PROPOSITION 65 WARNING
  • Designed in accordance with API 682
  • Standard tubing or welded pipe construction and optional flanged connections
  • Options available to meet project design and certification requirements
  • Pressure transmitters or switches
  • Available with flanged removable head option (API G35) for easy maintenance



3 US gallons/12 liters

5 US gallons/20 liters

Standard Materials

316/L Stainless Steel

Recommended Applications

  • Process pumps
Works With
Type 2648 Type 2648
Type 3648 Type 3648

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