Key design parameters for stainless steel threaded pipe fittings include thread type, dimensions, pressure rating, and material.
Common thread types include NPT, BSPT, and BSPP. NPT threads are covered by ASME B1.20.1, while BSPT and BSPP follow their respective applicable standards. These thread types differ in profile and sealing method and are not generally interchangeable.
The pressure rating of a fitting depends on its design, material, applicable standard, and operating temperature. Common materials include 304 and 316 stainless steel, with the choice depending on corrosion resistance requirements and service conditions.
