Njengento yokulawula eyimfuneko kwinkqubo yemibhobho yolwelo, iivalvu zineendlela ezahlukeneyo zoqhagamshelo ukuze zilungele iimeko ezahlukeneyo zokusetyenziswa kunye neempawu zolwelo. Ezi zilandelayo ziindlela eziqhelekileyo zoqhagamshelo lweevalvu kunye neenkcazo zazo ezimfutshane:
1. Uqhagamshelo lweFlange
Ivalvu yiiqhagamshelwe kumbhobho ngeeflanges ezihambelanayo kunye nezibophelelo zebolt, kwaye ifanelekile kwiinkqubo zemibhobho ezinobushushu obuphezulu, uxinzelelo oluphezulu kunye nobubanzi obukhulu.
inzuzo:
Uqhagamshelo luqinile kwaye ukuvalwa kulungile. Lufanelekile ukuqhagamshelwa kwevalvu phantsi kweemeko ezinzima ezifana noxinzelelo oluphezulu, ubushushu obuphezulu kunye nemidiya ebolileyo.
Kulula ukuyiqhaqha nokuyilungisa, nto leyo eyenza kube lula ukuyigcina nokuyitshintsha ivalvu.
isiphene:
Kufuneka iibholiti kunye neenati ezingaphezulu ukuze kufakelwe, kwaye iindleko zokufakela kunye nokulungisa ziphezulu.
Uqhagamshelo lweFlange lunzima kakhulu kwaye luthatha indawo engakumbi.
Uqhagamshelo lweFlange yindlela eqhelekileyo yoqhagamshelo lwevalvu, kwaye imigangatho yayo ibandakanya ikakhulu ezi zinto zilandelayo:
Uhlobo lweFlange: Ngokwemilo yomphezulu odibanisayo kunye nesakhiwo sokutywina, iiflange zingahlulwa zibeiiflanges zokuwelda ezisicaba, iiflanges zokuwelda ze-butt, iiflanges ezinemikhono ekhululekileyo, njl. njl.

Ubungakanani beflange: Ubungakanani beflange budla ngokubonakaliswa ngobubanzi obuqhelekileyo (DN) bombhobho, kwaye ubungakanani beflange bemigangatho eyahlukeneyo bunokwahluka.

Udidi loxinzelelo lweFlange: Udidi loxinzelelo loqhagamshelo lweflange ludla ngokumelwa yiPN (umgangatho waseYurophu) okanye iKlasi (umgangatho waseMelika). Udidi olwahlukileyo luhambelana noxinzelelo olusebenzayo olwahlukeneyo kunye nobubanzi bobushushu.

Imo yomphezulu wokutywina: Kukho iintlobo ngeentlobo zomphezulu wokutywina weeflange, ezifana nomphezulu othe tyaba, umphezulu ophakanyisiweyo, umphezulu ogobileyo nongqukuva, umphezulu wolwimi nomngxuma, njl. Imo yomphezulu wokutywina efanelekileyo kufuneka ikhethwe ngokweempawu zolwelo kunye neemfuno zokutywina.

2. Uqhagamshelo olunemisonto
Uqhagamshelo olunemisonto lusetyenziswa kakhulu kwiivalvu ezincinci kunye neenkqubo zemibhobho ezinoxinzelelo oluphantsi. Imigangatho yayo ibandakanya ikakhulu ezi zinto zilandelayo:
inzuzo:
Kulula ukuyiqhagamshela kwaye kulula ukuyisebenzisa, akukho zixhobo okanye izixhobo ezikhethekileyo ezifunekayo.

Ifanelekile ukuqhagamshela iivalvu ezincinci kunye nemibhobho enoxinzelelo oluphantsi ngexabiso eliphantsi.

isiphene:
Ukusebenza kokuvala akukuhle kangako kwaye ukuvuza kunokwenzeka.

Ifanelekile kuphela kwiimeko zoxinzelelo oluphantsi kunye nobushushu obuphantsi. Kwiindawo zoxinzelelo oluphezulu kunye nobushushu obuphezulu, uqhagamshelo olunemisonto lusenokungahlangabezani neemfuno.

Uqhagamshelo olunemisonto lusetyenziswa kakhulu kwiivalvu ezincinci kunye neenkqubo zemibhobho ezinoxinzelelo oluphantsi. Imigangatho yayo ibandakanya ikakhulu ezi zinto zilandelayo:
Uhlobo lomsonto: Iintlobo zemisonto ezisetyenziswa rhoqo ziquka umsonto wepayipi, umsonto wepayipi onciphileyo, umsonto we-NPT, njl. Uhlobo lomsonto olufanelekileyo kufuneka lukhethwe ngokwezinto zombhobho kunye neemfuno zoqhagamshelo.

Ubungakanani bomsonto: Ubungakanani bomsonto budla ngokubonakaliswa ngobubanzi obuqhelekileyo (i-DN) okanye ububanzi bombhobho (i-intshi). Ubungakanani bomsonto bemigangatho eyahlukeneyo bunokwahluka.

Izinto zokutywina: Ukuqinisekisa ukuqina koqhagamshelwano, i-sealant idla ngokusetyenziswa kwimisonto okanye kusetyenziswa izinto zokutywina ezifana ne-sealing tape.

3. Uqhagamshelo lwe-welding
Ivalvu kunye nombhobho zidityaniswa ngokuthe ngqo ngenkqubo yokuwelda, efanelekileyo kwiimeko ezifuna ukutywinwa okuphezulu kunye noqhagamshelo oluhlala luhleli.
inzuzo:
Inamandla aphezulu oqhagamshelo, ukusebenza kakuhle kokuvala kunye nokumelana nokugqwala. Ifanelekile kwiimeko ezifuna ukusebenza okusisigxina kunye nokusebenza okuphezulu kokuvala, njengeenkqubo zemibhobho kwi-petroleum, iikhemikhali kunye nezinye izimboni.

isiphene:
Ifuna izixhobo zokuwelda zobungcali kunye nabaqhubi, kwaye iindleko zokufakela kunye nokugcina ziphezulu.

Nje ukuba ukuwelda kugqityiwe, ivalvu kunye nombhobho ziya kwakheka zizonke, nto leyo engelula ukuyiqhaqha nokuyilungisa.

Uqhagamshelo oluhlanganisiweyo lufanelekile kwiimeko ezifuna ukuvalwa okuphezulu kunye noqhagamshelo oluhlala luhleli. Imigangatho yayo ibandakanya ikakhulu ezi zinto zilandelayo:
Uhlobo lwe-Weld: Iindidi ze-weld eziqhelekileyo ziquka ii-butt welds, ii-fillet welds, njl. Uhlobo lwe-weld olufanelekileyo kufuneka lukhethwe ngokwezinto zombhobho, ubukhulu bodonga kunye neemfuno zoqhagamshelo.

Inkqubo yokuwelda: Ukukhethwa kwenkqubo yokuwelda kufuneka kuqwalaselwe ngokupheleleyo ngokusekelwe kwizinto ezifana nezinto, ubukhulu kunye nendawo yokuwelda yesiseko sesinyithi ukuqinisekisa umgangatho wokuwelda kunye namandla oqhagamshelo.

Ukuhlolwa kokuwelda: Emva kokuba ukuwelda kugqityiwe, kufuneka kwenziwe uhlolo olufunekayo kunye novavanyo, olufana nokuhlolwa ngamehlo, uvavanyo olungonakalisiyo, njl.njl., ukuqinisekisa umgangatho wokuwelda kunye nokuqina koqhagamshelo.

4. Uqhagamshelo lwesokhethi
Isiphelo esinye sevalvu sisokethi kwaye esinye isiphelo sispigot, esidityaniswe ngokufakwa nokutywinwa. Sisetyenziswa rhoqo kwiinkqubo zeplastiki zokufaka imibhobho.
5. Uqhagamshelo lweClamp: Kukho izixhobo zokubambelela kumacala omabini evalvu. Ivalvu inamathele kumbhobho ngesixhobo sokubambelela, esifanelekileyo ukufakwa nokuqhaqhwa ngokukhawuleza.
6. Uqhagamshelo lwemikhono yokusika: Uqhagamshelo lwemikhono yokusika ludla ngokusetyenziswa kwiinkqubo zeplastiki zemibhobho. Uqhagamshelo phakathi kwemibhobho kunye neevalvu lufezekiswa ngezixhobo ezikhethekileyo zokusika imikhono kunye nezixhobo zokusika imikhono. Le ndlela yokudibanisa kulula ukuyifaka nokuyiqhaqha.
7. Uqhagamshelo oluncamathelayo
Uqhagamshelo oluncamathelayo lusetyenziswa kakhulu kwiinkqubo zemibhobho ezingezizo ezesinyithi, ezifana nePVC, PE kunye neminye imibhobho. Uqhagamshelo oluhlala luhleli lwenziwa ngokudibanisa umbhobho kunye nevalvu kunye kusetyenziswa iglue ekhethekileyo.
8. Uqhagamshelo lweClamp
Idla ngokubizwa ngokuba luqhagamshelo olunemiqolo, le yindlela yoqhagamshelo olukhawulezayo olufuna iibholiti ezimbini kuphela kwaye ifanelekile kwiivalvu ezinoxinzelelo oluphantsi ezihlala ziqhekeka. Izixhobo zayo zoqhagamshelo lwemibhobho ziquka iindidi ezimbini eziphambili zemveliso: ① izixhobo zoqhagamshelo lwemibhobho ezisebenza njengezivali zoqhagamshelo ziquka amalungu aqinileyo, amalungu aguquguqukayo, ii-tee zoomatshini kunye nee-flanges ezigobileyo; ② izixhobo zoqhagamshelo lwemibhobho ezisebenza njengeenguqu zoqhagamshelo ziquka iingqiniba, ii-tee, kunye nee-cross, i-reducer, i-blind plate, njl.njl.
Ifom yoqhagamshelo lwevalvu kunye nomgangatho zizinto ezibalulekileyo ukuqinisekisa ukusebenza okukhuselekileyo nokuthembekileyo kwenkqubo yevalvu kunye nephayiphi. Xa ukhetha ifomu yoqhagamshelo olufanelekileyo, izinto ezifana nezixhobo zephayiphi, uxinzelelo lokusebenza, ubushushu, indawo yokufakela, kunye neemfuno zolondolozo kufuneka ziqwalaselwe ngokupheleleyo. Kwangaxeshanye, imigangatho kunye neenkcukacha ezifanelekileyo kufuneka zilandelwe ngexesha lenkqubo yokufakela ukuqinisekisa ukuchaneka kunye nokuvalwa koqhagamshelo ukuqinisekisa ukusebenza okuqhelekileyo kwenkqubo yephayiphi yolwelo.