Kunezinhlobo eziningi ze-amavalvu ebhabhathane, kufaka phakathi ukunqamula okusheshayo kanye nokulungiswa okuqhubekayo. Isetshenziswa kakhulu kumapayipi amakhulu anomfutho ophansi noketshezi kanye negesi. Ifaneleka ngezikhathi lapho izidingo zokulahlekelwa yingcindezi zingekho phezulu, ukulungiswa kokugeleza kuyadingeka, futhi izidingo zokuvula nokuvala zishesha; ngokuvamile izinga lokushisa lingaphansi kuka-300 ℃ kanti ingcindezi ingaphansi kuka-40 kg (ama-valve evemvane ngokuvamile asebenzisa ingcindezi ephansi, njengalawo asekhaya. Bambalwa kakhulu abangafinyelela i-CL600), i-medium ivame ukusetshenziselwa amanzi kanye negesi, kanti i-medium ayidingi, futhi i-medium ene-granular ingasetshenziswa futhi.
Njengevalvu yebhabhathane evalekile, ilethe intuthuko esheshayo ngemva kokuvela kwerabha yokwenziwa, ngakho-ke iwuhlobo olusha lwevalvu yokuvala. Ezweni lakithi kuze kube ngawo-1980, amavalvu ebhabhathane ayesetshenziswa kakhulu kumavalvu anomfutho ophansi, futhi isihlalo sevalvu sasenziwa ngerabha yokwenziwa. Ngawo-1990, ngenxa yokwanda kokushintshana namazwe angaphandle, amavalvu ebhabhathane aqinile (i-metal-seal) athuthuka ngokushesha. Njengamanje, kunezimboni eziningi zamavalvu ezingakhiqiza amavalvu ebhabhathane avaliwe ngensimbi enomfutho ophakathi nendawo ngokungaguquki, okwenza insimu yokusetshenziswa kwamavalvu ebhabhathane ibe banzi.
Izinto ezingasetshenziswa yi-valve ye-butterfly valve futhi ziyilawule zihlanganisa amanzi, amanzi ahlanganisiwe, amanzi ajikelezayo, indle, amanzi olwandle, umoya, igesi, igesi yemvelo ewuketshezi, impuphu eyomile, udaka, udaka lwezithelo kanye nezingxube zezinto eziqinile ezilengayo.
Amavalvu ebhabhathane afanelekela ukulawulwa kokugeleza. Njengoba ukulahlekelwa yingcindezi yevalvu yebhabhathane epayipini kukhulu kakhulu, cishe kuphindwe kathathu kunevalvu. Ngakho-ke, lapho ukhetha ivalvu yebhabhathane, ithonya lokulahlekelwa yingcindezi yesistimu yepayipi kufanele licatshangelwe ngokugcwele. Ukulahlekelwa yingcindezi yeplate yebhabhathane kufanele futhi kucatshangelwe lapho iplate yebhabhathane ivaliwe. Ukuqina. Ngaphezu kwalokho, kubalulekile ukucabangela ukulinganiselwa kwezinga lokushisa lokusebenza okungamelana nezinto zesihlalo sevalvu elastiki emazingeni okushisa aphezulu. Ubude besakhiwo kanye nokuphakama okuphelele kwevalvu yebhabhathane kuncane, isivinini sokuvula nokuvala siyashesha, futhi sinezici ezinhle zokulawula uketshezi. Isimiso sesakhiwo sevalvu yebhabhathane sifaneleka kakhulu ekwenzeni amavalvu amakhulu. Uma ivalvu yebhabhathane idingeka ukulawula ukugeleza, into ebaluleke kakhulu ukukhetha kahle usayizi nohlobo lwevalvu yebhabhathane ukuze isebenze kahle nangendlela ephumelelayo.
1. Ngokuvamile, ekucindezelweni, ekulawuleni nasekusetshenzisweni kodaka, isakhiwo siyadingeka sibe sifushane ngobude futhi sisheshe ngesivinini sokuvula nokuvala (1/4 revolution). Kunconywa ukunqamula ukucindezela okuphansi (umehluko omncane wokucindezela), i-butterfly valve.
2. I-valve yebhabhathane ingasetshenziswa lapho kutholakala ukulungiswa kwezindawo ezimbili, isiteshi esinciphile, umsindo ophansi, isenzakalo se-cavitation kanye ne-gasification, inani elincane lokuvuza emoyeni, kanye nemidiya yokuhudula.
3. Uma ivalvu yebhabhathane isetshenziswa ngaphansi kwezimo ezikhethekile njengokulungiswa kwe-throttling, noma izidingo zokuvala eziqinile, noma ukukhubeka okukhulu, izinga lokushisa eliphansi (i-cryogenic) nezinye izimo zokusebenza, kuyadingeka ukusebenzisa uphawu lwensimbi oluklanywe ngokukhethekile olunedivayisi yokulungisa i-eccentric kathathu noma i-eccentric kabili. Ivalvu yebhabhathane enikezelwe emhlabathini.
4. Ivalvu yebhabhathane eliphakathi nendawo ifanelekela amanzi ahlanzekile, indle, amanzi olwandle, amanzi anosawoti, umusi, igesi yemvelo, ukudla, imithi, kanye namafutha adinga ukuvalwa okuphelele, ukuvuza okungekho kokuhlolwa kwegesi, impilo yenkonzo ephezulu, kanye nokushisa kokusebenza okungu -10℃ ~ 150℃. Kanye namapayipi ahlukahlukene e-asidi ne-alkali kanye namanye.
5. I-valve yebhabhathane engavamile evalwe kahle ifanelekela ukuvulwa nokuvalwa okunezindlela ezimbili kanye nokulungiswa kwamapayipi okukhipha umoya nothuli, futhi isetshenziswa kabanzi kumapayipi egesi kanye nasemanzini kwezensimbi, embonini yokukhanya, amandla kagesi, kanye nezinhlelo ze-petrochemical.
6. I-valve ye-butterfly ephindwe kabili evala ucingo lwensimbi ibe yinsimbi ifanelekela ukushisa kwasemadolobheni, ukuphakelwa kwegesi, ukuphakelwa kwamanzi kanye neminye imibhobho yegesi, uwoyela, i-asidi kanye ne-alkali, njengedivayisi yokulawula nokulawula.
7. Ngaphezu kokusetshenziswa njengevalvu yokulawula uhlelo lwedivayisi yokuhlukaniswa kwegesi yokucindezela okukhulu (i-PSA), ivalvu ye-butterfly ehlanganisiwe yensimbi ye-Jinyong ephindwe kathathu engavamile ingasetshenziswa kabanzi ku-petroleum, i-petrochemical, i-chemical, i-metallurgical, amandla kagesi kanye neminye imikhakha. Iyivalvu yesango kanye nevalvu yomhlaba. Umkhiqizo omuhle ohlukile.