API Plans

Plan 65A

Description: Plan 65A is a liquid leakage detection system

measured by a level transmitter, arranged to set off an

alarm when EXCESSIVE leakage occurs. Normally for

Arrangement 1 single seals. The

orifice downstream of the level

transmitter is typically 1/4” located

in a vertical piping leg. Includes a

bypass around the orifice to prevent

pressure build up. Use with closeclearance

gland throttle bushing.

Objective: Safely control continuous

draining to liquid collection system

and alarm or shut pump down

when excessive.

Advantages: Used for remote

locations and critical processes.

May be used with Plan 62 quench

to reduce oxidation/coking buildup.