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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.
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