API - American Petroleum Institute
No. of pages: 126
API Std 661 - Standard for Air-cooled Heat Exchangers for General Refinery Services
This International Standard gives requirements and recommendations for the design, materials, fabrication, inspection, testing and preparation for shipment of air-cooled heat exchangers for use in the petroleum and natural gas industries.
This International Standard is applicable to air-cooled heat exchangers with horizontal bundles, but the basic concepts can also be applied to other configurations.
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