Musiyano mukuru uripo pakati pemapaipi eAmerican Standard (anonyanya kunzi ASTM series standards) neChinese Standard (anonyanya kunzi GB series standards) uri musystem yakajairwa, specifications yedimensional, magrade emidziyo, uye zvinodiwa zvehunyanzvi. Pazasi pane kuenzanisa kwakadzama kwakarongeka:
1. Sisitimu Yakajairika & Mashandisirwo Ekushandisa
| Chikamu | Mutemo weAmerica (ASTM) | Standard yeChinese (GB) |
|---|---|---|
| Mitemo Yepakati | Mapaipi asina musono: ASTM A106, A53 Mapaipi esimbi isina ngura: ASTM A312, A269 Mapaipi akasungirirwa: ASTM A500, A672 | Mapaipi asina musono: GB/T 8163, GB/T 3087 Mapaipi esimbi isina ngura: GB/T 14976 Mapaipi akasungirirwa: GB/T 3091, GB/T 9711 |
| Maitiro Ekushandisa | Musika wekuNorth America, mapurojekiti epasi rose (oiri negesi, indasitiri yemakemikari), zvinoda kutevedzera zvinodiwa zvinotsigira zvakaita seAPI neASME | Mapurojekiti emuno, mamwe mapurojekiti ekuSoutheast Asia, anoenderana nezvinodiwa neGB-supported pressure ngarava uye mapaipi |
| Hwaro hweKugadzira | Inoenderana neASME B31 series (makodhi ekugadzira mapaipi ekumanikidza) | Zvinoenderana neGB 50316 (Kodhi yeKugadzira Mapaipi esimbi eindasitiri) |
2. Sisitimu Yekutsanangurwa Kwemativi
Uyu ndiwo musiyano unonyanya kunzwisisika, unotarisa pakunyorwa kwedhayamita yepombi uye ukobvu hwemadziro.
Kunyora Dhayamita yePombi
- American Standard: Inoshandisa Nominal Pipe Size (NPS) (semuenzaniso, NPS 2, NPS 4) muma inches, iyo isingaenderane zvakananga nedhayamita chaiyo yekunze (semuenzaniso, NPS 2 inoenderana nedhayamita yekunze ye60.3mm).
- Standard yeChinese: Inoshandisa Nominal Diameter (DN) (semuenzaniso, DN50, DN100) mumamirimita, uko DN value iri pedyo nedhayamita yekunze yepombi (semuenzaniso, DN50 inoenderana nedhayamita yekunze ye57mm).
Rusvingo Ukobvu Series
- American Standard: Inoshandisa Schedule (Sch) series (semuenzaniso, Sch40, Sch80, Sch160). Ukobvu hwemadziro hunowedzera nenhamba yeSch, uye maSch akasiyana anoenderana neukobvu hwakasiyana hwemadziro eNPS imwe chete.
- Standard yeChinese: Inoshandisa kirasi yeukobvu hwemadziro (S), kirasi yekumanikidza, kana kunyora zvakananga ukobvu hwemadziro (semuenzaniso, φ57×3.5). Mamwe ma standard anotsigirawo Sch series labeling.
3. Magiredhi Ezvinhu & Kusiyana Kwekushanda
| Chikamu | Zvinhu Zvakajairika zveAmerica | Zvinhu Zvakafanana zveChinese Standard Material | Kusiyana Kwekushanda |
|---|---|---|---|
| Simbi yeKabhoni | ASTM A106 Gr.B | Simbi yeGB/T 8163 Giredhi 20 | ASTM Gr.B ine sarufa nephosphorus zvishoma uye yakasimba pakupisa kwakaderera; GB Giredhi 20 Simbi inopa mari yakawanda uye inoshanda zvakanaka, yakakodzera mamiriro ekumanikidzwa kwakaderera kusvika pakati nepakati. |
| Simbi isina ngura | ASTM A312 TP304 | GB/T 14976 06Cr19Ni10 | Kuumbwa kwemakemikari kwakafanana; American Standard ine zvinodiwa zvakasimba zvekuyedzwa kwekuora kwepakati pegranular, nepo Chinese Standard ichitsanangura mamiriro akasiyana ekutumira. |
| Simbi Isina Chibage | ASTM A335 P11 | GB/T 9948 12Cr2Mo | ASTM P11 inopa simba rakasimba uye rinodziya zvakanyanya; GB 12Cr2Mo yakakodzera mapaipi eboira emagetsi emumba |
4. Zvinodiwa zveUnyanzvi & Maitiro eKuedza
Kuedzwa kweDzvinyiriro
- American Standard: Kuyedzwa kwemvura kunodiwa nemaitiro akaomarara ekuverenga kumanikidzwa kwekuyedzwa, zvichienderana nezvinodiwa neASME B31; kuyedzwa kusingaparadze (UT/RT) kunodiwa kune mamwe mapaipi ane kumanikidzwa kwakanyanya.
- Standard yeChinese: Kuyedzwa kwemvura kunogadziriswa kana zvichidikanwa nekumanikidzwa kwekuyedzwa kwakasununguka; huwandu hwekuyedzwa kusingaparadze hunotsanangurwa nekirasi yemapaipi (semuenzaniso, kuyedzwa kwe100% kwemapaipi ekirasi yeGC1).
Mamiriro Ekutumira
- American Standard: Mapaipi anowanzo endeswa ari mumamiriro akajairwa + akapfava uye zvinodiwa zvakajeka zvekugadzirisa pamusoro (semuenzaniso, kusvina, kupfava).
- Standard yeChinese: Inogona kuendeswa muchimiro chekupisa, chakadhonzwa nechando, chakajairwa, kana zvimwewo zvine zvinodiwa zvekurapa pamusoro zviri nyore.
5. Kusiyana Kwekuenderana Munzira Dzekubatanidza
- Mapaipi eAmerican Standard anoenderana ne fittings (flanges, elbows) zvichienderana neASME B16.5, nema flanges anowanzo shandisa RF (Raised Face) sealing surfaces uye ma pressure classes akanyorwa seClass (semuenzaniso, Class 150, Class 300).
- Mapaipi eChinese Standard anoenderana nezvishandiso zvinoenderana neGB/T 9112-9124, ane maflange akanyorwa nePN (semuenzaniso, PN16, PN25) emhando dzekumanikidza. Mhando dzepamusoro pechisimbiso dzinoenderana neAmerican Standard asi dzakasiyana zvishoma muhukuru.
Mazano Ekusarudza Zvinokosha
- Isa pombi dzeAmerican Standard pamapurojekiti epasi rose pakutanga; simbisa kuti NPS, Sch series, uye zvitupa zvezvinhu zvinosangana nezvinodiwa neASTM.
- Isa pombi dzeChinese Standard pakutanga pamabasa epamba nekuda kwemitengo yakaderera uye huwandu hwakakwana hwezvinotsigira.
- Usasanganise zvakananga mapombi eAmerican Standard neChinese Standard, kunyanya pakubatanidza maflange—kusawirirana kwezvikamu kunogona kukonzera kutadza kushanda zvakanaka kwesealing.
Ndinogona kupa tafura yekushandura yezviratidzo zvepombi zvakajairika (American Standard NPS vs. Chinese Standard DN) kuti zvive nyore kusarudza nekukurumidza uye kushandura. Ungaida here?
Nguva yekutumira: Zvita-15-2025