Ziziphi iimfuno zokufakela iivalve zebhola?

Kukho iimfuno ezithile ezahlukeneyo zofakelo lweiivalve zebholaukuqinisekisa ukusebenza kwabo okuqhelekileyo kunye nokusetyenziswa kwexesha elide.

Umsebenzi wokulungiselela phambi kofakelo ubalulekile. Hlola ngobunono ubume bombhobho ukuqinisekisa ukuba i-coaxial kwaye imiphezulu emibini yokutywina yeflange iyahambelana. Kwangaxeshanye, qinisekisa ukuba umbhobho unamandla awoneleyo okumelana nobunzima bevalve yebhola. Ukuba amandla awanelanga, inkxaso kufuneka yongezwe. Kuyimfuneko ukususa ngokucokisekileyo ukungcola okufana neoli kunye ne-welding slag ukusuka kumbhobho ukuthintela ukuba bangene ngaphakathi kwi-valve yebhola kwaye babangele umonakalo kwindawo yokutywina kunye nezinye izinto. Ukongeza, kuyimfuneko ukujonga ngononophelo iimpawu zevalve yebhola, uqinisekise ukuba icocekile kwaye ingonakalisiwe, kwaye usebenzeivalve yebholaivuleke ngokupheleleyo kwaye ivalwe amaxesha amaninzi ukuqinisekisa ukuba iintshukumo zayo zokuvula nokuvala zibhetyebhetye kwaye ziqhelekile.

Ngexesha lofakelo, iivalve yebholainokufakwa nakwesiphi na isiphelo njengesiphelo somlambo. Kwiivalve zebhola zokusingatha, izikhundla zabo zofakelo ziguquguqukayo; Kodwa iivalvu zebhola ezinee-activator ezifana neebhokisi zegiya, ii-actuator zomoya, njl. Xa udibanisa i-flanges, i-gasket yokutywina kufuneka ifakwe ngokweemfuno zokuyila, kwaye iibholiti kufuneka ziqiniswe ngokulinganayo, ngokuthe ngcembe, kwaye ngokulinganayo ukuphepha ukuvuza. Kufuneka kuqatshelwe ukuba i-actuator ayifanele isetyenziswe njengendawo yokuphakamisa ngexesha lofakelo ukuphepha umonakalo. Ukuba ivalve yebhola iqhagamshelwe kumbhobho kwaye kukho ukuxhoma okuphantsi okanye imeko yokuthwala amandla angaphandle kumbhobho okufutshane, isibiyeli kufuneka sisetyenziswe ukuphelisa ukutenxa kunye nokuqinisekisa ukuzinza kombhobho.

Emva kofakelo, uhlolo oluneenkcukacha lusafuneka. Qalisa ivalve yebhola kuqala, yenza imisebenzi emininzi yokuvula nokuvala, jonga ukuba isenzo sayo sibhetyebhetye, nokuba amandla ayafana, nokuba imeko yokusebenza iqhelekile. Emva koko, ngokweemfuno zoyilo loxinzelelo lombhobho, indawo edibeneyo phakathi kwevalve yebhola kunye neflange yombhobho iphantsi kovavanyo loxinzelelo ukujonga ukuba umsebenzi wokutywina ulungile kwaye uqinisekisa ukuba akukho kuvuza kwenzekayo. Kungale ndlela kuphela enokuthi isetyenziswe ngokuzithemba.