Inkcazo yeUbubanzi obuqhelekileyo
Ububanzi obuqhelekileyo, obudla ngokufinyezwa ngokuthi yi-DN (ukusuka kwisiJamani esithi “Durchmesser” esithetha ububanzi) kwiinkqubo ze-metric okanye kwi-NPS (Ubungakanani bePipe obuqhelekileyo) kwiinkqubo ze-imperial, bubungakanani obuqhelekileyo beepayipi kunye nezinto ezinxulumene nazo. Ayilomlinganiselo ochanekileyo wobubanzi bombhobho okanye isixhobo. Endaweni yoko, isebenza njengendawo eqhelekileyo yokubhekisa ukuqinisekisa ukuhambelana phakathi kwamacandelo ahlukeneyo kwinkqubo yepayipi.
Umzekelo, kumbhobho we-DN 50 kwinkqubo ye-metric, ububanzi bangaphandle bombhobho busenokungabi yi-50 mm ngqo. Ububanzi bangaphandle bombhobho wentsimbi we-DN 50, ngokweenkcazo ezisemgangathweni, buhlala bumalunga ne-60.3 mm. Ububanzi obuqhelekileyo busetyenziselwa ukwenza lula ukuchonga kunye nokukhethwa kwamacandelo. Zonke izinto ezinobubanzi obufanayo, njengemibhobho, iiflanges, kunye neevalvu, zenzelwe ukulingana ngokufanelekileyo.
Ukubaluleka kokuMiselwa kweMigangatho
Ukulinganisa ububanzi obuqhelekileyo kuneengenelo ezininzi. Kuvumela ukuba kube lula ukutshintshana kwamacandelo. Kwisityalo esikhulu semizi-mveliso esineepayipi ezininzi kunye nezixhobo, ukuba nenkqubo yobubanzi obuqhelekileyo kuqinisekisa ukuba iindawo ezitshintshiweyo zinokufunyanwa ngokukhawuleza kwaye zifakwe. Umzekelo, ukuba ivalvu kumbhobho we-DN 80 kufuneka itshintshwe, nayiphi na ivalvu enobubanzi obuqhelekileyo be-DN 80, nokuba umenzi wayo nguwuphi (ukuba nje ilandela imigangatho efanelekileyo), kufuneka ikwazi ukungena kakuhle kwiipayipi ezikhoyo.
Ngaphezu koko, yenza lula inkqubo yoyilo. Iinjineli zingachaza izinto ngokusekelwe kwiidayamitha ezimiselweyo ngaphandle kokukhathazeka ngomahluko omncinci kwiidayamitha zokwenyani. Oku kuyakhawulezisa uyilo lweenkqubo zemibhobho, njengoko zinokugxila kuyilo olupheleleyo kunye nokusebenza endaweni yokuxinana kwiinkcukacha ezichanekileyo zobukhulu benxalenye nganye.
Umahluko phakathi kwe-Imperial kunye neMetricUbubanzi obuqhelekileyo
Kwinkqubo yobukhosi, i-NPS isekelwe kwii-intshi. Umzekelo, umbhobho we-NPS oyi-intshi ezimbini unobubanzi bangaphandle obahlukileyo xa kuthelekiswa nombhobho we-DN 50 kwinkqubo ye-metric, nangona zilingana kancinci ngokwemida yobukhulu ngokubanzi. Inkqubo yobukhosi ineseti yayo yobukhulu obuqhelekileyo beepayipi kunye nezixhobo, kwaye ukuguqulwa phakathi kwe-NPS yobukhosi kunye ne-metric DN akusoloko kulula. Nangona kunjalo, kwenziwe imizamo yokuseka ukulingana okuqikelelweyo ukwenza lula urhwebo lwamazwe ngamazwe kunye nentsebenziswano kumashishini asebenzisa zombini iinkqubo.
Ukuqukumbela, ububanzi obuqhelekileyo yingcamango esisiseko kwihlabathi leenkqubo zemibhobho. Ibonelela ngendlela eqhelekileyo yokuchonga nokufanisa izinto, okuvumela uyilo olufanelekileyo, ukufakelwa, kunye nokugcinwa kweenkqubo zokuphatha ulwelo kumashishini ahlukeneyo, ukusuka kwiindawo zokucoca ioyile negesi ukuya kuthungelwano lokubonelela ngamanzi.
Ixesha leposi: Matshi-17-2025