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Overview of API 661 - Petroleum, Petrochemical, and Natural Gas Industries Air-Cooled Heat Exchangers

API 661, Petroleum, Petrochemical, and Natural Gas Industries Air-Cooled Heat Exchangers, is a standard developed and released by the American Petroleum Institute (API) that provides requirements for the design, fabrication, inspection, testing, and shipping of air-cooled heat exchangers for use in the petroleum, petrochemical, and natural gas industries.  The most recent edition of this standard (7th Ed.) was released July 2013.

 

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