Products

API Plan 65B

API Plan 65B

At­mos­pheric leakage col­lec­tion and de­tec­tion system for con­dens­ing leakage. Failure of the seal will be detected by a cu­mu­la­tive leakage into the system.

A  From me­chan­i­cal seal
B  To liquid col­lec­tion system
C  Valve (locked open)
D  Valve (normally closed)

Seal chamber details

3  To liquid col­lec­tion system
4  Flush (F)
5  Quench (Q)
6  Drain (D)
7  Seal chamber


Example seal: EagleBurgmann LL9UC single pusher me­chan­i­cal seal.

P&ID according to API

Key

1  Valve (locked open)
2  Drain valve
3  To liquid col­lec­tion system
5  Quench (Q)
6  Drain (D)


LIT  Level trans­mit­ter with local in­di­ca­tor

Features

  • Uses the Plan 61 drain connection.
  • Collects the leakage from a single seal in a leakage collection reservoir.
  • Is equipped with a level transmitter with a high level alarm.
  • This plan is used with a floating or segmented bushing or a similar containment device.
  • Identical to Plan 65A except that it uses a normally closed valve in place of the orifice of Plan 65A.

Application

  • For single seals with expected condensing leakage.
  • Generally for horizontal pumps.

 

Remarks, checkpoints

  • It must be ensured that the valve downstream of the reservoir is always kept closed during operation of the pump.
  • Drain connection on the gland must be at the bottom-most position (6 o’clock).
  • The valve below the gland (1) should always be kept open during pump operation.

 

 

Pump media characteristics

  • Condensing, medium temperature fluids

Location, function

  • Atmospheric side
  • Leakage collection, detection and alarm

Configurations

1CW-FL, 1CW-FX
 

2CW-CW*, 3CW-FB*, 3CW-BB*, 3CW-FF*

* Remark: The con­fig­u­ra­tions listed for each in­di­vid­ual piping plan are to be un­der­stood as rec­om­men­da­tions in­clud­ing possible uti­liza­tions which may also be applied.

 

API 682 4th Edition

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