Shell and Tube Heat Exchanger, API 660 , ASME U Stamp, Petrochemical Industry Application.

API STANDARD 660 : Shell-and-Tube Heat Exchangers --standard specifies requirements and gives recommendations for the mechanical design, material selection, fabrication, inspection, testing, and preparation for shipment of shell-and-tube heat exchangers for the petroleum,
petrochemical, and natural gas industries.

ASME B16.5: Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard
ASME PCC: Guidelines for Pressure Boundary Bolted Flange Joint Assembly
EJMA : Standards of the Expansion Joint Manufacturers Association
NACE MR0103: Materials Resistant to Sulfide Stress Cracking in Corrosive Petroleum Refining Environments
NACE MR0175: Petroleum and natural gas industries—Materials for use in H 2 S containing environments in oil and gas production—Parts 1, 2 and 3
NACE SP0472: Methods and Controls to Prevent In-Service Environmental Cracking of Carbon Steel Weldments in Corrosive Petroleum Refining Environments
TEMA : Ninth Edition, Standards of the Tubular Exchanger Manufacturers Association

ASME BPVC, Section VIII, EN 13445: all parts

Main parts of Shell and Tube Heat Exchanger: