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API Plan 65A monitors leakage in a single seal arrangement. Connected to the drain port on the gland, a reservoir collects normal leakage and is constantly open to drain. In the event of a seal failure, an orifice fitting on the outlet of the system allows a level transmitter to trigger an alarm due...

API Plan 65B monitors leakage in a single seal arrangement. Connected to the drain port on the gland, a reservoir is allowed to collect normal leakage. A level transmitter on the reservoir triggers an alarm in the event of excessive leakage. A valve on the outlet side of the reservoir is typically l...

< Back to Mechanical Seal Support Systems Seal Support System Between Seal Plans Seal Plan Assemblies Swagelok-built between seal plans for seal support are available as seal plan assemblies only. Optionsand configurations not listed in the ordering numbering structure are also available, and se...

< Back to Between Seal Plans API Seal Plan 52 utilizes a reservoir and circulates an unpressurized buffer fluid between the inboard and outboard seals. To provide positive circulation through the support system and into the seal, a pumping ring is employed. Frictional losses in the buffer fluid in...

API Plan 53A utilizes a reservoir and circulates a pressurized barrier fluid between the inboard and outboard seals. The typical source of pressurization is plant nitrogen. The reservoir should be set at least 20 psi (1.3 bar) above maximum seal chamber pressure. This is to ensure that leakage acros...

Sampling System Problem Solving and Maintenance Training Swagelok ®  Sampling System Problem Solving and Maintenance (SSM) training courses will teach youhow to troubleshoot a variety of common sampling system issues from the process line throughsample disposal. Attendees will learn how to troubles...

API Plan 76 collects leakage from the inboard seal in applications where normal process fluid leakage does not condense between the seals at ambient temperatures. In this piping plan, gaseous leakage from the inboard seal exits through the containment seal vent port in the gland. The orifice creates...

This panel is a combination of API Plan 72 and Plan 76. The Plan 72 side supplies a buffer gas from an external source between the inboard and outboard faces of a dual seal. For reliable operation, gas seals require a constant supply of clean, dry gas, typically nitrogen. The seal support panel cont...

Gain the Support You Need from Local Experts Swagelok ® onsite services bring industry-leading fluid system technical expertise, application experience, and application knowledge directly to you. Swagelok field engineers  visit your facility, evaluate your fluid handling or sampling systems, advi...

Discover the Benefits of Fluid System Evaluation and Advisory Services Swagelok ® fluid system evaluation and advisory services bring the technical expertise, application experience, and industry knowledge of Swagelok field engineers  to your facilities, helping you get the most from your fluid ...