Brands
  • PG 72/74 systems are used to provide a clean, regulated gas supply to either a dual unpressurized or pressurized seal arrangement. A gas, typically nitrogen, is introduced in the area between the inner and outer seals, thus preventing fugitive emissions from escaping to the atmosphere.

  • PL 54/55 lubrication systems provide a positive flow and pressure of pressurized or unpressurized barrier/ buffer fluid to dual seals. This seal support system type is typically preferred where flow and heat removal capacity exceeds that of API Plan 52 or 53 seal support systems.

  • These reservoir-based seal support systems are designed for API Plan 52/53A and 53B applications to support unpressurized and pressurized dual seals. Circulation to buffer or barrier fluid is achieved with a pumping ring (or optional circulating pump). A range of heat exchangers can be packaged with this system.