Qhov sib txawv tseem ceeb ntawm American Standard (feem ntau yog ASTM series cov qauv) thiab Suav Standard (feem ntau yog GB series cov qauv) cov kav dej yog nyob rau hauv tus qauv system, qhov ntev specifications, cov khoom siv qib, thiab cov kev cai technical. Hauv qab no yog kev sib piv ntxaws ntxaws:
1. Txheej Txheem Txheem & Scope ntawm Daim Ntawv Thov
| Pawg | Tus Qauv Asmeskas (ASTM) | Tus Qauv Suav (GB) |
|---|---|---|
| Cov Qauv Tseem Ceeb | Cov kav dej tsis muaj qhov txuas: ASTM A106, A53 Cov kav hlau tsis xeb: ASTM A312, A269 Cov kav dej vuam: ASTM A500, A672 | Cov kav dej tsis muaj qhov txuas: GB/T 8163, GB/T 3087 Cov kav hlau tsis xeb: GB / T 14976 Cov kav dej vuam: GB / T 3091, GB / T 9711 |
| Cov Xwm Txheej ntawm Daim Ntawv Thov | Kev ua lag luam hauv North America, cov haujlwm thoob ntiaj teb (roj & roj av, kev lag luam tshuaj lom neeg), yuav tsum ua raws li cov lus qhia txhawb nqa xws li API thiab ASME | Cov haujlwm hauv tsev, qee qhov haujlwm hauv Southeast Asia, sib xws nrog GB-txhawb nqa lub nkoj siab thiab cov lus qhia txog cov kav dej |
| Lub Hauv Paus Tsim | Ua raws li ASME B31 series (cov cai tsim cov kav dej siab) | Ua raws li GB 50316 (Code for Design of Industrial Metal Piping) |
2. Qhov System Specification Dimensional
Qhov no yog qhov sib txawv uas nkag siab tshaj plaws, tsom mus rau qhov cim ntawm txoj kab uas hla ntawm cov yeeb nkab thiab cov koob tuab ntawm phab ntsa.
Kev Sau Npe Rau Txoj Kab Uas Muaj Yeeb Nkab
- Tus Txheej Txheem Asmeskas: Siv Qhov Loj ntawm Cov Yeeb Nkab Nominal (NPS) (piv txwv li, NPS 2, NPS 4) hauv nti, uas tsis sib xws ncaj qha rau qhov txoj kab uas hla sab nraud tiag tiag (piv txwv li, NPS 2 sib xws rau qhov txoj kab uas hla sab nraud ntawm 60.3 hli).
- Tus Txheej Txheem Suav: Siv Nominal Diameter (DN) (piv txwv li, DN50, DN100) hauv millimeters, qhov twg tus nqi DN ze rau lub yeeb nkab sab nraud (piv txwv li, DN50 sib raug rau lub sab nraud ntawm 57mm).
Phab Ntsa Thickness Series
- Tus Txheej Txheem Asmeskas: Txais yuav cov Schedule (Sch) series (piv txwv li, Sch40, Sch80, Sch160). Phab ntsa tuab nce nrog tus lej Sch, thiab cov nqi Sch sib txawv sib raug rau cov phab ntsa tuab sib txawv rau tib NPS.
- Tus Qauv Suav: Siv chav kawm tuab ntawm phab ntsa (S), chav kawm siab, lossis sau ncaj qha rau qhov tuab ntawm phab ntsa (piv txwv li, φ57 × 3.5). Qee tus qauv kuj txhawb nqa Sch series labeling.
3. Cov Qib Khoom Siv & Kev Ua Tau Zoo Sib Txawv
| Pawg | Cov Khoom Siv Txheem Asmeskas | Cov Khoom Siv Txheem Suav Sib Npaug | Kev Sib Txawv ntawm Kev Ua Tau Zoo |
|---|---|---|---|
| Cov Hlau Carbon | ASTM A106 Qib B | GB/T 8163 Qib 20 Hlau | ASTM Gr.B muaj cov ntsiab lus sulfur thiab phosphorus tsawg dua thiab muaj zog dua thaum kub qis; GB Qib 20 Steel muab kev siv nyiaj ntau dua, tsim nyog rau cov xwm txheej siab qis mus rau nruab nrab |
| Hlau tsis xeb | ASTM A312 TP304 | GB/T 14976 06Cr19Ni10 | Cov tshuaj lom neeg zoo sib xws; American Standard muaj cov kev cai nruj rau kev sim corrosion intergranular, thaum Suav Standard qhia txog cov xwm txheej xa khoom sib txawv |
| Cov Hlau Uas Tsis Muaj Hlau | ASTM A335 P11 | GB/T 9948 12Cr2Mo | ASTM P11 muab kev ruaj khov dua rau qhov kub thiab txias; GB 12Cr2Mo yog qhov tsim nyog rau cov kav dej boiler hauv tsev |
4. Cov Kev Cai Txuj Ci & Cov Qauv Xeem
Kev Ntsuas Siab
- Tus Txheej Txheem Asmeskas: Kev kuaj hydrostatic yog qhov yuav tsum tau ua nrog cov qauv xam siab ntawm kev xeem nruj dua, ua raws li ASME B31 cov lus qhia; kev kuaj tsis ua puas tsuaj (UT/RT) yog qhov yuav tsum tau ua rau qee cov kav dej siab.
- Tus Txheej Txheem Suav: Kev kuaj hydrostatic tuaj yeem sib tham tau raws li qhov xav tau nrog kev ntsuas siab uas tsis tshua muaj zog; qhov feem pua ntawm kev kuaj tsis ua puas tsuaj yog txiav txim siab los ntawm chav kawm ntawm cov kav dej (piv txwv li, kev kuaj 100% rau cov kav dej GC1-chav kawm).
Cov Cai Xa Khoom
- Tus Qauv Asmeskas: Cov kav dej feem ntau raug xa tuaj rau hauv qhov xwm txheej ib txwm muaj + tempered nrog cov kev cai kho qhov chaw kom meej (piv txwv li, pickling, passivation).
- Tus Txheej Txheem Suav: Muaj peev xwm xa tuaj rau hauv cov khoom kub-kuav, cov khoom txias-kos, cov khoom ib txwm muaj, lossis lwm yam mob uas muaj kev xav tau kev kho saum npoo av ntau dua.
5. Kev Sib Txawv ntawm Kev Sib Txuas Lus
- Cov kav dej txheem Asmeskas tau phim nrog cov khoom siv (flanges, lub luj tshib) ua raws li ASME B16.5, nrog cov flanges feem ntau siv RF (Raised Face) sealing surfaces thiab cov chav kawm siab uas tau sau ua Class (piv txwv li, Class 150, Class 300).
- Cov kav dej txheem Suav tau phim nrog cov khoom siv ua raws li GB / T 9112-9124, nrog cov flanges cim los ntawm PN (piv txwv li, PN16, PN25) rau cov chav kawm siab. Cov hom nto sealing yog sib xws nrog American Standard tab sis txawv me ntsis hauv qhov loj me.
Cov Lus Qhia Txog Kev Xaiv Cov Ntsiab Lus Tseem Ceeb
- Muab cov kav dej American Standard tso ua ntej rau cov haujlwm thoob ntiaj teb; xyuas kom meej tias NPS, Sch series, thiab daim ntawv pov thawj khoom siv ua tau raws li ASTM cov cai.
- Muab cov kav dej txheem Suav tso ua ntej rau cov haujlwm hauv tsev vim tias tus nqi qis dua thiab muaj cov khoom siv txhawb nqa txaus.
- Tsis txhob sib tov cov kav dej American Standard thiab Chinese Standard ncaj qha, tshwj xeeb tshaj yog rau cov flange sib txuas - qhov sib txawv ntawm qhov ntev tuaj yeem ua rau kev sib khi tsis ua haujlwm.
Kuv tuaj yeem muab ib daim ntawv qhia txog kev hloov pauv rau cov qauv yeeb nkab (American Standard NPS vs. Chinese Standard DN) los pab xaiv thiab hloov pauv sai. Koj puas xav tau nws?
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-15-2025