alert icon

Internet Explorer 8 or 9 is not supported by this website. Please either update your version of Internet Explorer, or use a more up to date browser.

Hide Message hide icon
Swagelok Quebec Group

Your Authorized Swagelok Sales and Service Center

API Plan 65B

API Plan 65B Leakage Collection with Reservoir

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 left closed and is only opened periodically to drain the reservoir.

Plan 65B 


  • Collects leakage of condensing process fluid

See page 75 of the Mechanical Seal Support Systems Applications Guide for additional details.


Contact your local distributor