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API Plan 54 Barrier Fluid Pressurized by External System

API Plan 54 is a custom engineered system that delivers a pressurized barrier fluid to the seal chamber. The barrier liquid is circulated to and from the seal chamber via a pump located on an external reservoir. This fluid is maintained at a pressure greater than that found in the seal chamber. A Plan 54 can contain filters, coolers, and other components that are selected according to the specific parameters of the application.

plan 54plan 54
API Plan 54 Assembly and API Plan 54 Kit
Assembly and kit shown with some optional components.

This plan:

  • Provides a cool, clean, pressurized barrier fluid to a dual pressurized seal

Plan 54 is available as a seal skid assembly. The associated field installation kit for use in connecting the assembly to your system is also available. Assembly contents may include:

  • Swagelok tube fittings
  • 63 series ball valves
  • 1 series needle valve
  • V series 2-valve manifold
  • Bimetal thermometer
  • TTW series thermowell tee
  • Thermowell
  • Hydraulic reservoir
  • Swagelok pipe fittings
  • Pump/coupling/motor
  • Diaphragm accumulator
  • Shell and tube head exchanger
  • Thermostatic mixing valve
  • Filter heads/elements
  • Differential pressure indicators
  • Suction strainer
  • Flow/pressure control valves

See page 47 of the Mechanical Seal Support Systems Application Guide for additional details and ordering information. Contact your authorized Swagelok sales and service center for information on optional components.

Request more information about Swagelok assembliesBack to Between Seal Plans