What ASME stamp is required for an assembly of a high-pressure boiler?

The assembly of a high-pressure boiler requires an "A" stamp as mandated by the American Society of Mechanical Engineers (ASME). This stamp indicates that the equipment has been manufactured in accordance with the ASME Boiler and Pressure Vessel Code, specifically pertaining to the construction of power boilers. The "A" stamp signifies that the boiler complies with requirements for both design and construction, ensuring safety and reliability at high pressures.

The other stamps serve different purposes. The "B" stamp typically pertains to pressure vessels rather than boilers, focusing on non-boiler pressure equipment. The "C" stamp is associated with the fabrication of small pressure vessels and does not apply to high-pressure boiler assembly. The "D" stamp is related to the manufacture of heating boilers and not specifically to high-pressure applications. Each stamp reflects compliance with particular criteria as delineated in the ASME code, hence the necessity of the "A" stamp for high-pressure boiler assemblies.