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The Certificate Holder needs to inform the ASME Conformity Assessment Department at firstname.lastname@example.org of the address change due to postal re-designation including any changes to the building number, street name, zip code, etc. ASME will issue a revised ASME Certificate of Authorization provided the Certificate Holder'/s Authorized Inspection Agency (AIA) of record provides documentation to ASME to support the Certificate Holder'/s request. Where there is no AIA involved in the Certificate Holder'/s code activities, documentation from the postal authority and/or the jurisdictional authorities where the shop is located will be needed to support the request. There is no charge to revise ASME Certificates of Authorization due to postal re-designation.
Reference: ASME website
The most common design of pressure vessel is the cylindrical shape with spherical or dished ends, known as a cylindrical pressure vessel with hemispherical or ellipsoidal heads. This design is widely used in various industries, such as oil and gas, chemical, petrochemical, power generation, and many others.
Cylindrical pressure vessels are relatively simple to manufacture, provide good structural integrity, and are capable of withstanding high pressures. The hemispherical or ellipsoidal heads are commonly used as they distribute the pressure evenly, reducing stress concentrations and promoting uniform material deformation under pressure. This design also allows for easy inspection, maintenance, and cleaning of the vessel.
However, it's important to note that pressure vessel designs can vary depending on specific application requirements, operating conditions, and regulatory standards. Other common designs include spherical vessels, torispherical vessels (which have a shallow knuckle radius), and conical vessels, among others. The choice of pressure vessel design depends on factors such as the type of fluid being stored or processed, operating pressure and temperature, material properties, fabrication techniques, and applicable codes and standards.
The ASME Codes for Pressure Vessel Design are utilized for pressurized equipment, such as vessels, piping, and fittings, in various regions around the world, including North America. These codes encompass the design, construction, maintenance, and modification of pressurized equipment. The commonly used ASME codes include:
These codes rely on rule-based design and offer formulaic approaches that are effective when the design is within the limits of the code's scope.