Kukula kokhazikika kwa ANSI-Standard check valves

Thechekeni valavuopangidwa, opangidwa, opangidwa ndikuyesedwa molingana ndi mulingo waku America umatchedwa American standardchekeni valavu, ndiye kukula kwake komwe kuli mulingo waku Americachekeni valavu? Kodi pali kusiyana kotani pakati pa iyo ndi valavu ya National Standard Check? Pakali pano, kukula kwa muyezo wa American standardfufuzani ma valvendiwotchuka kwambiri kuti upangidwe ndi kupangidwa motsatira miyezo ya API ndi ASME, ndipo miyezo yambiri ya valavu yaku America ndiyofala padziko lonse lapansi. Miyezo yokhazikika ya American Standard cheke ma valve ndi motere: Miyezo yopangira: API 6D, ASME B16.34, API 594, BS 1868, GB/T 12235, GB/T 12236, JB/T 8937 Kutalika kwa kapangidwe: ASME B16.10 , API 6D, GB/T 12221 Miyezo yolumikizira: ASME B16.5, ASME B16.47, ASME B16.25, GB/T 9113, JB/T 79, HG/ T 20592 Pressure test: API 598, API 6D, GB/T 13927, GB/T 26480 Pressure ndi kutentha : ASME B16.34, GB/T 12224 Kugwiritsa ntchito muyezo waku America ma valve a globe m'malo opanikizika kwambiri Kusiyana kwakukulu pakati pa American standardfufuzani ma valvendi muyezo wa dzikofufuzani ma valvendi izi: 1. Chigawo cha awiri mwadzina ndi osiyana; 2. Chizindikiro cha flange ndi chosiyana; 3. Kutalika kwa kapangidwe kake ndi kosiyana; 4. Zofunikira zoyendera ndizosiyana.