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API 682 compliant seal support systems and pressure vessels for all types of seal applications. Plan 32
In Piping Plan 32, a flush is injected into the seal chamber from an external source. The flushing product is brought from an external source to the seal. The external flush should be continuous and reliable even during nonstandard situations such as start-up or shutdown. [API 682; G.14]. This plan is used in combination with a close clearance throat bushing.
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