API Plan 21 Cooled Flush

Swagelok Alabama | Central & South Florida | West Tennessee Services Mechanical Seal Support Systems Process Side Plans (Kits & Assemblies) API Plan 21 Cooled Flush

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API Plan 21 adds a cooler to Plan 11 for applications requiring better control of flush vapor margin. Flow is routed from the discharge side of the pump through an orifice and a cooler before being returned to the seal chamber.

Plan 21
API Plan 21
Kit components shown solid and include some optional components.

This plan:

Provides cooled flush fluid to the process side of the seal
Removes heat and flushes particulate from the seal chamber
Improves fluid vapor margin in the seal chamber

Plan 21 is available as a kit of components ready for field assembly. Kit contents may include:

Swagelok tube fittings
Flange adapters
Pipe fittings
V series 2-valve manifold
63 series ball valve
Bimetal thermometer
TTW series thermowell tee
PGI series gauges
Tubing
Pressure transmitter
Heat exchanger
Heat exchanger stand
Pipe nipple

See page 19 of the Mechanical Seal Support Systems Application Guide for additional details and ordering information. Contact us for information on optional components.