Ubungakanani obuqhelekileyo beevalvu zokujonga ze-ANSI-Standard

Iivalvu yokujongaeyilwe, eyenziweyo, eveliswe kwaye yavavanywa ngokwemigangatho yaseMelika ibizwa ngokuba yimigangatho yaseMelikaivalvu yokujonga, ngoko ke, ubungakanani obuqhelekileyo bomgangatho waseMelika bungakanani?ivalvu yokujongaYintoni umahluko phakathi kwayo nevalvu yokujonga umgangatho wesizwe? Okwangoku, ubungakanani obuqhelekileyo bomgangatho waseMelikaiivalvu zokujongaithandwa kakhulu ukuba iyilwe kwaye iveliswe ngokwemigangatho ye-API kunye ne-ASME, kwaye imigangatho emininzi yeevalvu ezisemgangathweni zaseMelika ixhaphakile ehlabathini. Ubukhulu obuqhelekileyo beevalvu zokujonga ze-American Standard zezi zilandelayo: Imigangatho yoyilo: API 6D, ASME B16.34, API 594, BS 1868, GB/T 12235, GB/T 12236, JB/T 8937 Ubude besakhiwo: ASME B16.10, API 6D, GB/T 12221 Imigangatho yoqhagamshelo: ASME B16.5, ASME B16.47, ASME B16.25, GB/T 9113, JB/T 79, HG/ T 20592 Uvavanyo loxinzelelo: API 598, API 6D, GB/T 13927, GB/T 26480 Uvavanyo loxinzelelo kunye nobushushu: ASME B16.34, GB/T 12224 Ukusetyenziswa kweevalvu zeglobe ezisemgangathweni zaseMelika kwiindawo ezinoxinzelelo oluphezulu Umahluko ophambili phakathi komgangatho waseMelikaiivalvu zokujongakunye nomgangatho wesizweiivalvu zokujongazezi zilandelayo: 1. Iyunithi yobubanzi obuqhelekileyo yahlukile; 2. Uphawu lweflange lwahlukile; 3. Ubude besakhiwo bahlukile; 4. Iimfuneko zokuhlolwa zahlukile.