Depressurised buffer fluid circulation in outboard seal of a dual seal configuration through a seal support system. Circulation is maintained by using pumping ring in running condition and by …

API Plan 52 is a commonly used seal flush plan in mechanical sealing systems, specifically for dual unpressurized seals. It involves an external buffer fluid reservoir that circulates between …

Drawing reproduced from ANSI/API Standard 682, Third Edition, September 2004, courtesy of the American Petroleum Institute.

External buffer liquid reservoir supplying clean fluid to the outboard seal faces. This plan is used in Arrangement 2 seals and requires the use of an unpressurized external pump seal pot and …

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 …

Explore Stein Seal’s API Plan 52, designed to provide a reliable buffer fluid system for dual mechanical seals in industrial applications.

NOTE While circulation for both Plans 52 and 53A can be obtained by thermal siphoning, Lemco recommends forced circulation, which can be achieved by a pumping ring or external pump.

7. Available ease langed of maintenance in various connections.

API Plan 52 Reservoir providing buffer liquid for the outer seal of an arrangement 2 unpressurized dual seal. The buffer liquid shall be maintained at a pressure less than seal chamber pressure …

API Plan 52 is a commonly used seal flush plan in mechanical sealing systems, specifically for dual unpressurized seals. It involves an external buffer fluid reservoir that circulates between …