Ko ngā rerekētanga matua i waenga i ngā paipa American Standard (ko ngā paerewa raupapa ASTM te nuinga) me ngā paipa Chinese Standard (ko ngā paerewa raupapa GB te nuinga) kei roto i te pūnaha paerewa, ngā whakatakotoranga rahi, ngā tohu rauemi, me ngā whakaritenga hangarau. Kei raro nei he whakatairite taipitopito kua whakaritea:
1. Pūnaha Paerewa me te Whānuitanga o te Whakamahinga
| Kāwai | Paerewa Amerika (ASTM) | Paerewa Hainamana (GB) |
|---|---|---|
| Ngā Paerewa Matua | Ngā paipa tui kore: ASTM A106, A53 Ngā paipa kowiri tira: ASTM A312, A269 Ngā paipa whakarewa: ASTM A500, A672 | Ngā paipa tui kore: GB/T 8163, GB/T 3087 Ngā paipa kowiri tira: GB/T 14976 Ngā paipa whakarewa: GB/T 3091, GB/T 9711 |
| Ngā horopaki tono | Te mākete o Amerika Te Raki, ngā kaupapa o te ao (hinu me te hau, ahumahi matū), e hiahia ana kia tutukihia ngā whakaritenga tautoko pēnei i te API me te ASME | Ngā kaupapa ā-rohe, ētahi kaupapa Āhia ki te Tonga-mā-rāwhiti, e hototahi ana ki ngā whakaritenga mō te oko pēhanga me te paipa e tautokona ana e te GB |
| Pūtake Hoahoa | E tutuki ana ki ngā raupapa ASME B31 (ngā waehere hoahoa paipa pēhanga) | E tutuki ana i te GB 50316 (Waehere mō te Hoahoa o ngā Paipa Whakarewa Ahumahi) |
2. Pūnaha Whakatakotoranga Ahu
Koinei te rerekētanga tino māmā, e arotahi ana ki te tapanga diameter paipa me te raupapa matotoru pakitara.
Tapanga Diameter Paipa
- Paerewa Amerikana: E whakamahi ana i te Rahi Paipa Ingoa (NPS) (hei tauira, NPS 2, NPS 4) i roto i ngā inihi, kāore e ōrite tika ki te whānui o waho tuturu (hei tauira, ko te NPS 2 e ōrite ana ki te whānui o waho o te 60.3mm).
- Paerewa Hainamana: E whakamahi ana i te Diameter Ingoa (DN) (hei tauira, DN50, DN100) i roto i ngā mirimita, ina tata atu te uara DN ki te diameter o waho o te paipa (hei tauira, ko te DN50 e rite ana ki te diameter o waho o te 57mm).
Raupapa Matotoru Pakitara
- Paerewa Amerikana: E whakamahi ana i te raupapa Schedule (Sch) (hei tauira, Sch40, Sch80, Sch160). Ka piki ake te matotoru o te pakitara me te tau Sch, ā, ko ngā uara Sch rerekē e rite ana ki ngā matotoru pakitara rerekē mō te NPS kotahi.
- Paerewa Hainamana: Ka whakamahi i te akomanga matotoru pakitara (S), te akomanga pēhanga, ka tapa tika rānei i te matotoru pakitara (hei tauira, φ57×3.5). Ka tautokohia hoki e ētahi paerewa te tapanga raupapa Sch.
3. Ngā Tohu Rauemi me ngā Rerekētanga Mahi
| Kāwai | Rauemi Paerewa o Amerika | Rauemi Paerewa Hainamana ōrite | Ngā Rerekētanga Mahi |
|---|---|---|---|
| maitai waro | ASTM A106 Gr.B | GB/T 8163 Rino Tau 20 | He iti ake te ihirangi whanariki me te whākōkī o te ASTM Gr.B, ā, he pakari ake i te pāmahana iti; he nui ake te utu whai hua o te maitai GB Grade 20, he pai mō ngā āhuatanga pēhanga iti ki te waenga. |
| Kowiri tira | ASTM A312 TP304 | GB/T 14976 06Cr19Ni10 | He rite te hanganga matū; He kaha ake ngā whakaritenga a te Paerewa Amerikana mō te whakamātautau waikura intergranular, engari he rerekē ngā tikanga tuku e tohua ana e te Paerewa Hainamana |
| Rino Koranu-Iti | ASTM A335 P11 | GB/T 9948 12Cr2Mo | Ka whakarato te ASTM P11 i te kaha pāmahana teitei pumau ake; He pai te GB 12Cr2Mo mō ngā paipa pūwero tipu hiko ā-whare |
4. Ngā Whakaritenga Hangarau me ngā Paerewa Whakamātautau
Whakamātautau Pēhanga
- Paerewa Amerikana: He whakaritenga ā-ture te whakamātautau waipū, me ngā tātaitanga tatau pēhanga whakamātautau pakari ake, e tutuki ana i ngā whakaritenga ASME B31; me whai whakamātautau kore-whakangaro (UT/RT) mō ētahi paipa pēhanga teitei.
- Paerewa Hainamana: Ka taea te whiriwhiri i te whakamātautau wai-pūmau ina tonoa, me te pēhanga whakamātautau ngāwari; ko te ōwehenga o te whakamātautau kore-whakangaro ka whakatauhia e te akomanga paipa (hei tauira, te whakamātautau 100% mō ngā paipa akomanga-GC1).
Ngā Tikanga Tukunga
- Paerewa Amerikana: Ko ngā paipa ka tukuna i roto i te āhua kua whakatikatikaina + kua whakamaroketia me ngā whakaritenga maimoatanga mata mārama (hei tauira, te whakapūkara, te whakakorekore).
- Paerewa Hainamana: Ka taea te tuku i roto i te āhua wera-hurihuri, te āhua matao-tō, te āhua noa, me ētahi atu āhuatanga me ngā whakaritenga maimoatanga mata ngāwari ake.
5. Ngā Rerekētanga Hototahi i roto i ngā Tikanga Hononga
- Ka honoa ngā paipa o te Paerewa Amerikana ki ngā hononga (ngā flange, ngā tuke) e tutuki ana i te ASME B16.5, ā, ko ngā flange e whakamahi ana i ngā mata hiri RF (Raised Face) me ngā akomanga pēhanga kua tapaina ko te Class (hei tauira, Class 150, Class 300).
- Ka honoa ngā paipa Paerewa Hainamana ki ngā hononga e tutuki ana i te GB/T 9112-9124, me ngā flange kua tohua e te PN (hei tauira, PN16, PN25) mō ngā akomanga pēhanga. He hototahi ngā momo mata hiri ki te Paerewa Amerikana engari he rerekē paku ngā rahi.
Ngā Tohutohu Kōwhiringa Matua
- Whakatairangahia ngā paipa American Standard mō ngā kaupapa o te ao; manatokohia kei te tutuki i ngā tiwhikete NPS, raupapa Sch, me ngā tiwhikete rauemi ngā whakaritenga ASTM.
- Whakatairangatia ngā paipa Paerewa Hainamana mō ngā kaupapa ā-whare nā te mea he iti ake ngā utu me te rawaka o ngā taputapu tautoko.
- Kaua e whakaranua tika ngā paipa American Standard me te Chinese Standard, inā koa mō ngā hononga flange—ka raru pea te hiri mēnā kāore i te ōrite te rahinga.
Ka taea e au te whakarato i tētahi ripanga tahuritanga mō ngā whakatakotoranga paipa noa (American Standard NPS vs. Chinese Standard DN) hei whakahaere i te kōwhiringa tere me te tahuritanga. E hiahia ana koe ki tēnei?
Wā tuku: Hakihea-15-2025