API STD 624-ed.2

Anotácia textu normy API STD 624-ed.2 :

API STD 624, 2nd Edition, February 2023 - Type Testing of Rising Stem Valves Equipped with Graphite Packing for Fugitive Emissions

This standard specifies the requirements and acceptance criteria (100 ppmv) for fugitive emission type testing of rising and rising-rotating stem valves equipped with packing previously tested in accordance with API Standard 622. Valves larger than NPS 42 or valves greater than class 1500 are outside the scope of this standard.