Ukuchaza ngokuchanekileyo ubungakanani bombhobho wentsimbi kufuneka kubandakanye iiparameter ezininzi ezibalulekileyo:
Ububanzi obungaphandle (OD)
Ububanzi bangaphandle bombhobho wentsimbi, budla ngokubonakaliswa njengobubanzi obuqhelekileyo (DN) okanye ubungakanani bombhobho obuqhelekileyo (NPS).
Ubungakanani bePayipi eNominal (NPS) vs. Ububanzi obuNominal (DN)
I-NPS bubungakanani obuqhelekileyo obusekelwe kwii-intshi, ngelixa i-DN ibububanzi obuqhelekileyo kwiimilimitha. Ubudlelwane bokuguqulwa bulula kakhulu: ixabiso le-DN lilingana nexabiso le-NPS eliphindaphindwe ngama-25.4 (mm/intshi) ukujikelezisa isiphumo.
Enyanisweni, ukuhambelana phakathi kwemigangatho ye-NPS kunye ne-DN kusekelwe ngakumbi kwiitheyibhile zobukhulu ezimiselweyo.
Ubukhulu bodonga (WT)
Ubukhulu bodonga lombhobho. Kwimbhobho enobukhulu obuqhelekileyo, ubukhulu bodonga budla ngokunxulunyaniswa neShedyuli yombhobho, umz. iShedyuli 40 okanye iShedyuli 80, apho amaxabiso amakhulu abonisa udonga olutyebileyo.
Ubude
Ubude bombhobho wentsimbi, onokulungiswa okanye ungacwangciswanga, kuxhomekeke kwiimfuno zemveliso kunye nokusetyenziswa. Ubude obuqhelekileyo ziimitha ezi-6 kunye neemitha ezili-12.
Izinto eziphathekayo
Imigangatho yezinto kunye neendidi zepayipi yentsimbi, ezifana ne-ASTM A106 Grade B, i-API 5L Grade B, njl. Le migangatho ichaza ukwakheka kweekhemikhali kunye neempawu zomzimba zepayipi.
Imigangatho
Imigangatho yobukhulu bepayipi yekhabhoni kunye nentsimbi engatyiwayo ilandela ikakhulu i-ASME B36.10M (intsimbi yekhabhoni kunye ne-alloy) kunye ne-B36.19M (ipayipi yentsimbi engatyiwayo).
Iitafile zobungakanani bepayipi kunye neetafile zobunzima (i-WGT)
ukubonelela ngendlela esemgangathweni yokuchaza ubukhulu bodonga lwepayipi phantsi kweeShedyuli ezahlukeneyo, kunye nokuhlelwa kwemigangatho yobunzima efana ne-STD, i-XS, i-XXS, kunye nezinye.
Ubukhulu bodonga lombhobho buchaphazela ngokuthe ngqo ubukhulu bangaphakathi kunye nobunzima bombhobho. Ubukhulu bodonga bubalulekile kuba bumisela ubungakanani boxinzelelo lwangaphakathi umbhobho onokulumela.
Inombolo yeshedyuli
Indlela yokubonisa ubukhulu bodonga lombhobho, efana neShedyuli 40 kunye ne-80, ibhekisa kubukhulu bodonga obuqhelekileyo nobuqinisiweyo bombhobho wobubanzi obunikiweyo bangaphandle.
Ukubalwa okuqikelelweyo kwenombolo yeshedyuli kulandelayo:
Ngenxa yokukwazi kwazo ukumelana noxinzelelo oluqhelekileyo, imibhobho yentsimbi yeShedyuli 40 kunye neShedyuli 80 idla ngokufuneka kumashishini ahlukeneyo. Ekubeni le mibhobho yenzelwe ukumelana noxinzelelo oluphezulu, idla ngokufuneka ngobuninzi bayo ukuhlangabezana neemfuno zamashishini ahlukeneyo.
| I-NPS | IDAMILE YANGAPHANDLE (NGAPHANDLE) | IDAMILE ENGAPHAKATHI (NGAPHAKATHI) | UBUKHULU BODONGA (NGAPHAKATHI) | UBUNZIMA (LB/FT) |
| 1/8 | 0.405" | 0.269" | 0.068" | 0.24 lb/ft |
| 1/4 | 0.540" | 0.364" | 0.088" | 0.42 lb/ft |
| 3/8 | 0.675" | 0.493" | 0.091" | 0.57 lb/ft |
| 1/2 | 0.840" | 0.622" | 0.109" | 0.85 lb/ft |
| 3/4 | 1.050" | 0.824" | 0.113" | 1.13 lb/ft |
| 1 | 1.315" | 1.049" | 0.133" | 1.68 lb/ft |
| 1 1/4 | 1.660" | 1.380" | 0.140" | 2.27 lb/ft |
| 1 1/2 | 1.900" | 1.610" | 0.145" | 2.72 lb/ft |
| 2 | 2.375" | 2.067" | 0.154" | 3.65 lb/ft |
| 2 1/2 | 2.875" | 2.469" | 0.203" | 5.79 lb/ft |
| 3 | 3.500" | 3.068" | 0.216" | 7.58 lb/ft |
| 3 1/2 | 4.000" | 3.548" | 0.226" | 9.11 lb/ft |
| 4 | 4.500" | 4.026" | 0.237" | 10.79 lb/ft |
| 5 | 5.563" | 5.047" | 0.258" | 14.62 lb/ft |
| 6 | 6.625" | 6.065" | 0.280" | 18.97 lb/ft |
| 8 | 8.625" | 7.981" | 0.322" | 28.55 lb/ft |
| 10 | 10.750" | 10.020" | 0.365" | 40.48 lb/ft |
| 12 | 12.75" | 11.938" | 0.406" | 53.52 lb/ft |
| 14 | 14.000" | 13.124" | 0.438" | 63.50 lb/ft |
| 16 | 16.000" | 15.000" | 0.500" | 82.77 lb/ft |
| 18 | 18.000" | 16.876" | 0.562" | 104.70 lb/ft |
| 20 | 20.000" | 18.812" | 0.594" | 123.10 lb/ft |
| 24 | 24.000" | 22.624" | 0.688" | 171.30 lb/ft |
| I-NPS | IDAMILE YANGAPHANDLE (NGAPHANDLE) | IDAMILE ENGAPHAKATHI (NGAPHAKATHI) | UBUKHULU BODONGA (NGAPHAKATHI) | UBUNZIMA (LB/FT) |
| 1/8 | 0.405" | 0.215" | 0.095" | 0.32 lb/ft |
| 1/4 | 0.540" | 0.302" | 0.119" | 0.54 lb/ft |
| 3/8 | 0.675" | 0.423" | 0.126" | 0.74 lb/ft |
| 1/2 | 0.840" | 0.546" | 0.147" | 1.09 lb/ft |
| 3/4 | 1.050" | 0.742" | 0.154" | 1.47 lb/ft |
| 1 | 1.315" | 0.957" | 0.179" | 2.17 lb/ft |
| 1 1/4 | 1.660" | 1.278" | 0.191" | 3.00 lb/ft |
| 1 1/2 | 1.900" | 1.500" | 0.200" | 3.63 lb/ft |
| 2 | 2.375" | 1.939" | 0.218" | 5.02 lb/ft |
| 2 1/2 | 2.875" | 2.323" | 0.276" | 7.66 lb/ft |
| 3 | 3.500" | 2.900" | 0.300" | 10.25 lb/ft |
| 3 1/2 | 4.000" | 3.364" | 0.318" | 12.50 lb/ft |
| 4 | 4.500" | 3.826" | 0.337" | 14.98 lb/ft |
| 5 | 5.563" | 4.813" | 0.375" | 20.78 lb/ft |
| 6 | 6.625" | 5.761" | 0.432" | 28.57 lb/ft |
| 8 | 8.625" | 7.625" | 0.500" | 43.39 lb/ft |
| 10 | 10.750" | 9.562" | 0.594" | 64.42 lb/ft |
| 12 | 12.75" | 11.374" | 0.688" | 88.63 lb/ft |
| 14 | 14.000" | 12.500" | 0.750" | 106.10 lb/ft |
| 16 | 16.000" | 14.312" | 0.844" | 136.58 lb/ft |
| 18 | 18.000" | 16.124" | 0.938" | 170.87 lb/ft |
| 20 | 20.000" | 17.938" | 1.031" | 208.92 lb/ft |
| 24 | 24.000" | 21.562" | 1.219" | 296.58 lb/ft |
Ngoko ke, umzekelo opheleleyo wenkcazo yobungakanani bombhobho wentsimbi unokuba "yi-NPS 6 intshi, iShedyuli 40, i-ASTM A106 Grade B, Ubude beemitha ezi-6". Oku kumela umbhobho wentsimbi onobubanzi obuqhelekileyo bee-intshi ezi-6, iShedyuli 40, yenziwe ngokwemigangatho ye-ASTM A106 Grade B, kwaye ubude bayo buziimitha ezi-6.
Ixesha leposi: Feb-28-2024