API PLAN 21 (MCS21 Circulation via cooler)
Features
1.Provides a cool flush to the seal.
2.Improves the product temperature margin to avoidvapor formation.
3.Helps reduce coking.
4.Helps improve lubricity(e.g. hot water).
Advantages
1.Provides cool discharge liquid to the mechanical seal faces.
2.Maintains the product temperature margin (PT)as required by APl 682 Standard.
3.Removal of entrapped gasses through vent connection in the process inlet line.
4.Ease of maintenance for coil & shell
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Designed according to API Plan 21, this system is a cooling support system for mechanical seals, that effectively improves the seal operating environment. The system mainly consists of connections,cooler,temperature gauge.
In plan 21, the product from pump discharge is directed through on orifice then to a heat exchanger on cooler before being introduced into the Seal chamber.