Plan 53B Systems provide pressurized barrier fluid to a double seal using a charged bladder accumulator.  This API Plan is ideal for systems that require the pressurizing gas stay completely separate from the barrier fluid. It is also suitable for remote locations where limited utilities are available since the accumulator takes the place of an external pressure source.

Air Fin Coolers, Heat Exchanger, and seal pots can be added to any Plan 53B system. These heat dissipating systems reduce the temperature of the barrier fluid adding life to the seal. The completely closed system that is offered adds an additional layer of safety by containing seal leaks, and preventing the process from entering the pressurizing gas line.

Plan 53B - Seal Pot Manufacturing