| Muyezo | Kupatuka kwa makulidwe a khoma m'mimba mwake wakunja | |||
| tanthauzo | Kulekerera kwa m'mimba mwake kwakunja | Kulekerera makulidwe a khoma | Kupatuka kwa kulemera | |
| ASTM A53 | Chitoliro chachitsulo chosaphimbidwa komanso chotentha choviikidwa ndi galvanized komanso chopanda msoko | Pa machubu odziwika bwino omwe ali pansi kapena ofanana ndi NPS 1 1/2 (DN40), kukula kwa malo aliwonse sikuyenera kupitirira mtengo wokhazikika wa 1/64 mu (0.4mm), pa machubu odziwika bwino omwe ali pamwamba kapena ofanana ndi NPS2 (DN50), kukula kwakunja sikuyenera kupitirira mtengo wokhazikika wa ±1%. | Kukhuthala kwa khoma kocheperako kulikonse sikuyenera kupitirira 12.5% kuposa makulidwe a khoma omwe atchulidwa. Kukhuthala kwa khoma kocheperako komwe kwawunikidwa kuyenera kukwaniritsa zofunikira zomwe zili mu Table X2.4. | Kulemera kwa chitoliro chodziwika bwino chomwe chafotokozedwa mu Matebulo X2.2 ndi X2.3, kapena kulemera komwe kwawerengedwa motsatira fomula yoyenera mu ASME B36.10M, sikuyenera kusinthidwa ndi kupitirira ±10% |
| ASTM A106 | Kutentha kosatayana chitsulo cha kaboni chopanda dzina loyera chitoliro | 1/8-1 1/2 ±0.4mm, ＞1 1/2-4 ±0.79mm ＞4-8 ﹢1.59mm -0.79mm ＞8-18 ﹢2.38mm -0.79mm ＞18-26 ﹢3.18mm -0.79mm ＞26-34 ﹢3.79mm ﹣0.79mm ＞34-48 +4.76mm -0.79mm | Kukhuthala kwa khoma kosachepera kulikonse sikuyenera kupitirira 12.5% ya makulidwe a khoma omwe atchulidwa | Kulemera kwa chitoliro chilichonse chachitsulo sikuyenera kupitirira 10% kapena kupitirira kulemera komwe kwatchulidwa, komanso sikuyenera kupitirira 3.5% kapena kupitirira apo. Pokhapokha ngati ogulitsa ndi Xu Fang avomerezana mwanjira ina, mapaipi achitsulo okhala ndi NPS ya 4 ndi yaying'ono akhoza kuyezedwa bwino m'magulu. |
| API 5L | Chitoliro cha mapaipi (makampani amafuta ndi gasi - chitoliro chachitsulo cha machitidwe oyendera mapaipi |  | ||
Nthawi yotumizira: Feb-13-2025
