api5000The Api 5000 Flanges are manufactured using carbon steel or alloy steel, and they help to join pipes or block a section of the piping system. Api 10000 instrument flanges is of ring type joint specifically and they are not desnedAPI 5000 (Class 1500) Connection Types Performance Requirement API 6A Flange Means; Studded; Bolted; PR1; PR2; American Petroleum Institute; Coating Types Of API STD 6A Hh