Daidaitaccen girman ANSI-Standard check valves

Theduba bawulƙera, ƙera, samarwa da gwadawa bisa ga ma'aunin Amurka ana kiransa mizanin Amurkaduba bawul, don haka menene ma'aunin ma'auni na Amurkaduba bawul? Menene bambanci tsakaninsa da ma'auni na ƙasa? A halin yanzu, daidaitaccen girman ma'aunin Amurkaduba bawuloliya fi shahara don tsarawa da samarwa daidai da ka'idojin API da ASME, kuma yawancin ma'auni na bawul na Amurka sun zama gama gari a duniya. Matsakaicin ma'auni na bawul ɗin rajista na Standard na Amurka sune kamar haka: Matsayin ƙira: API 6D, ASME B16.34, API 594, BS 1868, GB/T 12235, GB/T 12236, JB/T 8937 Tsawon Tsari: ASME B16.10, API 61D, GB/T ASME 12D, GB2. ASME B16.47, ASME B16.25, GB/T 9113, JB/T 79, HG/T 20592 Gwajin matsa lamba: API 598, API 6D, GB/T 13927, GB/T 26480 Matsa lamba da zafin jiki rating: ASME B16.34 12, GB2gloglobin Amurka amfani da bawul rating. mahalli masu matsa lamba Babban bambance-bambance tsakanin daidaitattun Amurkawaduba bawulolida ma'aunin kasaduba bawulolisune kamar haka: 1. Nau'in diamita na ƙima ya bambanta; 2. Alamar flange ta bambanta; 3. Tsawon tsarin ya bambanta; 4. Abubuwan dubawa sun bambanta.