API Standards for Heat Transfer Equipments

API Standard	Title	Description
API-530	Calculation of Heater-tube Thickness in Petroleum Refineries	Design procedures and criteria used for calculating the required wall thickness of new tubes and associated component fittings for petroleum refinery heaters. Procedures are appropriate for designing tubes for corrosive and non-corrosive applications.
API-534	Heat Recovery Steam Generators	Guidelines for the selection and/or evaluation of Heat Recovery Steam Generator (HRSG) systems. The document indicates areas of design that need attention for HRSG system selection and offers information of various HRSG types.
API-535	Burners for Fired Heaters in General Refinery Services	Guidelines for the selection and/or evaluation of burners installed in fired heaters in general refinery services. This document indicates design areas that need attention for selection of burners and offers description of different burner types.
API-536	Post Combustion NOx Control for Equipment in General Refinery Services	This API standard offers mechanical description along with operation, maintenance, and test procedures of post-combustion NOx control equipment. The document discusses the Selective Non-Catalytic Reduction and Selective Catalytic Reduction methods of post-combustion NOx reduction.
API-537	Flare Details for General Refinery and Petrochemical Service	Guide for the selection, design, specification, operation and maintenance of flares and related combustion and mechanical components used in pressure-relieving and vapor depressurizing systems for petroleum.
API-560	Fired Heaters for General Refinery Services	Guidelines for the design, materials, fabrication, inspection, testing, preparation for shipment, and erection of fired heaters, air preheaters, fans and burners for general refinery service.
API-573	Inspection of Fired Boilers and Heaters	This API standard covers the inspection practices for fired boilers and process heaters (furnaces) used in petroleum refineries and petrochemical plants.
API-660	Shell-and-tube Heat Exchangers	Guidelines for the mechanical design, material selection, design of parts, fabrication, inspection, testing and preparation for shipment of shell-and-tube heat exchangers for the petroleum, petrochemical and natural gas industries. this API standard is applicable to heaters, condensers, coolers and reboilers, but not applicable to vacuum-operated steam surface condensers and feed-water heaters.
API-661	Air-Cooled Heat Exchangers for General Refinery Service	Guidelines 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.
API-662 Part I	Plate Heat Exchangers for General Refinery Services Part I—Plate-and-Frame Heat Exchangers	Guide for the mechanical design, materials selection, fabrication, inspection, testing, and preparation for shipment of plate-and-frame heat exchangers for use in petroleum industries, applicable to gasketed, semi-welded and welded plate-and frame heat exchangers.
API-662 Part II	Plate Heat Exchangers for General Refinery Services Part II—Brazed Aluminum Plate-fin Heat Exchangers	Guide for mechanical design, materials selection, fabrication, inspection, testing, and preparation for shipment of brazed aluminum plate-fin heat exchangers used in petroleum industries.