Umgangatho we-EN545: I-Ductile Iron Socket kunye ne-Spigot Pipe kunye ne-Socket Ubukhulu

1. I-Ductile Iron Sliding Flexible Joint

Uhlobo oluqhelekileyo lwamalunguumbhobho wesinyithi othambileyo, i-T-joint ixhomekeke kuxinzelelo loqhagamshelwano phakathi kweringi yerabha kunye nesokhethi kunye ne-spigot (eveliswa ngokuyinxenye kukucinezelwa kwangaphambili ngexesha lokufakelwa) ukwenza isitywino nxamnye nolwelo. Uyilo lwesokhethi luqwalasela indawo kunye ne-engile yokuphambuka kweringi yerabha, okuvumela ukuba ilungelelaniswe nokuguquguquka kwesiseko esithile kwaye inike inqanaba elithile lokumelana nokungcangcazela. Inesakhiwo esilula, ukufakwa okulula, kunye neempawu ezibalaseleyo zokutywina. Nangona kunjalo, ingxaki yayo kukukwazi kwayo ukuthintela ukutyibilika kwepayipi, njengoko ijoyini ingenakumelana namandla e-axial. Ke ngoko, ii-piers zokuxhasa ziyafuneka kwiindawo ezigobileyo zepayipi ukuze zimelane namandla e-axial.

Izihlanganisi zesokethi ezimile okwe-T zisetyenziswa kakhulu kwiipayipi zesinyithi ezithambileyo. Kulula ukuzifaka, zingabizi kakhulu, kwaye zivumela ii-engile ezincinci zokuphambuka. Ukufakela kulula: tyhala nje i-spigot kwisokethi, kwaye isitywina serabha siyazivala ngokuzenzekelayo. Oku kuyakhawulezisa kakhulu ukufakelwa ngelixa kunciphisa iimfuno zezixhobo kunye nezakhono zomsebenzi. Umfanekiso olandelayo ngumbono onqamlezileyo wesokethi yesinyithi esithambileyo kunye nokufakelwa kwe-spigot:

• I-DE bububanzi bangaphandle besokethi yombhobho wesinyithi esithambileyo. I-d1 bububanzi bangaphandle besokethi yombhobho wesinyithi esithambileyo.
• I-d2 bububanzi bangaphakathi bomjelo weringi yerabha kwisokethi yombhobho wesinyithi othambileyo.
• I-d3 bububanzi bangaphakathi besokethi yombhobho wesinyithi othambileyo.
• I-d5 bububanzi bangaphakathi besokethi yombhobho wesinyithi othambileyo kunye neringi yerabha efanelayo.
• I-d6 bububanzi bangaphakathi besokethi yepayipi yesinyithi esithambileyo kwindawo yokugqibela yesokethi.

Ngexesha loyilo kunye nokuveliswa, isiphelo sesokethi d3 kufuneka sibe sikhulu kancinci kune-spigot yangaphandle ububanzi be-DE ukuqinisekisa ukuba ukufakwa kucocekile ngokufanelekileyo. Ububanzi bangaphakathi d2 kunye ne-d3 kufuneka bube ngaphakathi komlinganiselo. Amaringi erabha kwisokethi kunye ne-spigot akhiwe ngokudibanisa irabha eqinileyo nethambileyo. Inxalenye yerabha eqinileyo inika inkxaso efunekayo kunye nombindi wejoyinti yombhobho, iqinisekisa ukuba iringi yerabha icinezelwe ngokufanelekileyo ukuvelisa umthwalo wangaphambili we-1-5 MPa, ukuthintela ukuvuza kolwelo ngaphakathi kombhobho. Njengoko uxinzelelo lolwelo ngaphakathi kombhobho lusanda, iringi yerabha iyawohloka ngakumbi, inyusa uxinzelelo loqhagamshelwano ukuya kwi-15-25 MPa, idala isiphumo sokwandisa uxinzelelo kwaye iqinise isitywino senkqubo yombhobho.

2. Umbhobho wentsimbi ethambileyoUbude

Ubude obuqhelekileyo obusebenzayo bombhobho wesinyithi othambileyo phantsi komgangatho we-EN545 ziimitha ezi-6, inkcazo eqhelekileyo ngoku eyamkelweyo ngabavelisi abaninzi basekhaya nakwamanye amazwe. Ukuze kube lula ukuthuthwa kweekhonteyina, imibhobho eveliswe eTshayina idla ngokuba ziimitha ezi-5.6 okanye ezi-5.7 ubude, njengoko kuvunyelwene ngababoneleli kunye nabathengi. Imibhobho eveliswe eIndiya idla ngokuba ziimitha ezi-5.5 ubude.