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Jump to: Global Distribution Network Products Services and Additional Offerings Contact Global Construction Product Selection Guide Managing Your Capital Project Any large-scale construction project is inherently difficult. Thousands of people are involved, competition is aggressiv...

Better by Design: Swagelok Seal Support Systems Swagelok leverages deep fluid system expertise to design and construct simple-to-configure, easy-to-maintain,and safe-to-operate seal support systems. If you are tasked with keeping rotating equipmentonline and operating efficiently, you will find tha...

API Plan 53C circulates a pressurized barrier fluid between the inboard and outboard seals. The source of pressurization is a piston accumulator. Plan 53C is preferred for applications where the seal chamber pressure may vary during pump operation. A sensing line is typically run from the seal chamb...

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 Pl...

API Plan 55 is a custom engineered system that delivers an unpressurized buffer fluid to the seal chamber. The buffer liquid is circulated to and from the seal chamber via a pump located on an external reservoir. A Plan 55 can contain filters, coolers, and other components that are selected accordin...

API Plan 72 supplies a buffer gas from an external source between the inboard and outboard seals. For reliable operation, gas seals require a constant supply of clean, dry gas, typically nitrogen. The seal support panel contains a coalescing filter to remove any moisture and particulate present in t...

< Back to Between Seal Plans API Plan 74 supplies a pressurized barrier gas from an external source between the inboard and outboard seals. For reliable operation, dual pressurized gas seals require a constant supply of clean, dry gas, typically nitrogen. The seal support panel contains a coalescin...

< Back to Mechanical Seal Support Systems Seal Support System Atmospheric Side Plans Seal Plan Kits Swagelok-built atmospheric side plans for seal support are available as seal plan kits only. Each kitcontains everything needed for proper installation, including an engineered drawing, making it s...

API Plan 51 is a quench system for use on the atmospheric side of a single seal. This system acts as a dead-ended reservoir for a fluid. API Plan 51 Kit contents shown solid and include some optional components. This plan: Prevents icing on the atmospheric side of the seal Is typically used ...

API Plan 62 delivers an external quench fluid to the atmospheric side of the seal. A typical application in a refinery is the prevention of coking on seal faces in hot hydrocarbon service by employing a steam quench. Nitrogen or clean water may also be used to quench or cool and clean the atmospheri...