Why Cool the Pump’s Seal Flush?
Certain types of centrifugal pumps and rotary pumps need their mechanical seals flushed out to achieve high reliability and effective sealing performance. The API has established piping plans for these seals. API Plan 21, Plan 22, Plan 23, and Plan 41 all require a heat exchanger to cool the seal flush liquid before being injected into the seal. This is where Madden Manufacturing comes in. We manufacture some of the most cost effective and durable liquid to liquid heat exchangers (sometimes directly called Pump Seal Flush Coolers) that the market has to offer.
When a centrifugal pump is pumping hot liquids there is potential for dilution and vaporization of the liquid. Cooling will improve lubricity and reduce the possibilities of dilution and vaporization, thus creating a more efficient and durable seal.