ASME Flange Fastener Standards
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In ASME B16.5-2009, it is possible to find out which specification of fastening bolts should be used for a given flange based on its type, diameter, and pressure class. But in which standard should one look up the specifications for the nuts that go with these bolts? There is a interstage cooler at the site, manufactured by Jiangnan Boilers for Drayson reciprocating compressors. The inlet and outlet flanges on the tube side are designed and fabricated in accordance with the ASME B16.5-2009 standard. I currently only know the specifications of the flanges; I would like to determine the specifications of the bolts and nuts used to fasten them by referring to relevant standards. I would appreciate guidance from those with experience in heat exchanger design. Thank you!
In ASME B16.5, the bolt sizes and quantities can be found based on the flange’s nominal pressure and nominal diameter. Same as HG/T20615-2009