Kunezinhlobo eziningi zeizivalo uvemvane, okuhlanganisa ukunqanyulwa okusheshayo nokulungiswa okuqhubekayo.Isetshenziselwa ikakhulukazi uketshezi kanye negesi amapayipi anobubanzi obukhulu obuphansi.Ifanele izikhathi lapho izidingo zokulahlekelwa kwengcindezi zingekho phezulu, ukulungiswa kokugeleza kuyadingeka, futhi izidingo zokuvula nokuvala ziyashesha;ngokuvamile izinga lokushisa lingaphansi kuka-300 ℃ futhi ingcindezi ingaphansi kuka-40 kg (ama-valve ovemvane ngokuvamile asebenzisa ukucindezela okuphansi, njengasekhaya. Bambalwa kakhulu abangafinyelela i-CL600), okuphakathi ngokuvamile kusetshenziselwa amanzi negesi, kanti okuphakathi akudingi, futhi i-granular medium nayo ingasetshenziswa.
Njenge-valve uvemvane evalekile, yaletha intuthuko ngokushesha ngemva kokuvela kwenjoloba yokwenziwa, ngakho iwuhlobo olusha lwe-valve yokuvala.Ezweni lami kuze kube yiminyaka yawo-1980, ama-valve ovemvane ayesetshenziselwa ikakhulukazi ama-valve anengcindezi ephansi, futhi isihlalo se-valve sasenziwa ngenjoloba yokwenziwa.Ngawo-1990, ngenxa yokwanda kokuhwebelana namazwe angaphandle, ama-valve uvemvane oqinile (insimbi-seal) athuthuka ngokushesha.Njengamanje, kunezimboni eziningi zama-valve ezingakhiqiza ama-valve uvemvane ane-medium-sealed metal-sealed stably, okwenza inkambu yokufakwa kwe-butterfly ibe banzi.
Imithombo yezindaba i-valve uvemvane engakwazi ukuyithwala futhi ilawule ihlanganisa amanzi, amanzi ajiyile, amanzi ajikelezayo, indle, amanzi olwandle, umoya, igesi, igesi yemvelo ewuketshezi, impushana eyomile, udaka, udaka lwezithelo nezingxube ezinokuqina okumisiwe.
Ama-valve e-butterfly afanele ukulawulwa kokugeleza.Njengoba ukucindezela kwevalve uvemvane epayipini kukukhulu uma kuqhathaniswa, cishe kuphindwe kathathu kune-valve.Ngakho-ke, lapho ukhetha i-valve butterfly, ithonya lokulahlekelwa kwengcindezi yesistimu yepayipi kufanele licatshangelwe ngokugcwele.Ukulahlekelwa kwengcindezi yepuleti ye-butterfly kufanele futhi kucatshangelwe lapho ipuleti yevemvane ivaliwe.Ukuqina.Ngaphezu kwalokho, kuyadingeka ukucabangela umkhawulo wokushisa okusebenzayo ukuthi impahla yesihlalo se-valve elastic ingamelana namazinga okushisa aphezulu.Ubude besakhiwo nokuphakama okuphelele kwe-valve ye-butterfly kuncane, isivinini sokuvula nokuvala siyashesha, futhi sinezici ezinhle zokulawula uketshezi.Isimiso sesakhiwo se-valve ye-butterfly ifaneleka kakhulu ekwenzeni ama-valve anobubanzi obukhulu.Lapho i-valve ye-butterfly idingeka ukulawula ukugeleza, into ebaluleke kakhulu ukukhetha kahle ubukhulu kanye nohlobo lwe-valve butterfly ukuze lusebenze kahle nangempumelelo.
1. Ngokuvamile, ekushayeni, ekulawuleni nasekulawuleni udaka, isakhiwo sidingeka sibe sifushane ngobude futhi sisheshe ekuvuleni nasekuvaleni isivinini (1/4 revolution).I-low pressure cut-off (umehluko omncane wengcindezi), i-valve uvemvane iyanconywa.
2. I-valve ye-butterfly ingasetshenziswa lapho ukulungiswa kwezikhundla ezimbili, isiteshi esinciphisa, umsindo ophansi, i-cavitation kanye ne-gasification phenomenon, inani elincane lokuvuza emkhathini, kanye nemithombo ye-abrasive iyatholakala.
3. Lapho i-valve butterfly isetshenziswa ngaphansi kwezimo ezikhethekile ezifana nokulungiswa kwe-throttling, noma izidingo eziqinile zokuvala, noma ukuhuzuka okukhulu, izinga lokushisa eliphansi (cryogenic) nezinye izimo zokusebenza, kuyadingeka ukusebenzisa uphawu lwensimbi oluklanywe ngokukhethekile nge-eccentric kathathu noma i-double eccentric adjustment valve Ivalve yovemvane enikelwe phansi.
4. I-centerline butterfly valve ifanele amanzi ahlanzekile, indle, amanzi olwandle, amanzi anosawoti, umusi, igesi yemvelo, ukudla, imithi, namafutha adinga ukuvalwa okuphelele, ukuvuza kokuhlolwa kwegesi okuyiziro, impilo yesevisi ephezulu, kanye nezinga lokushisa lokusebenza - 10 ℃ ~ 150 ℃.Futhi i-asidi ehlukahlukene kanye ne-alkali namanye amapayipi.
5. I-valve yevemvane evalekile ene-soft-sealed eccentric ilungele ukuvuleka nokuvalwa kanye nokulungisa amapayipi komoya kanye nokukhipha uthuli, futhi isetshenziswa kakhulu kumapayipi egesi nasemigwaqweni yamanzi kwezensimbi, imboni yokukhanya, amandla kagesi, nezinhlelo ze-petrochemical.
6. I-valve ye-butterfly ene-eccentric ephindwe kabili ye-metal-to-metal ifanele ukushisisa kwasemadolobheni, ukuhlinzekwa kwegesi, ukuhlinzekwa kwamanzi kanye namanye amapayipi egesi, uwoyela, i-asidi kanye ne-alkali, njengesisetshenziswa esilawulayo nesinyakazisayo.
7. Ngaphezu kokusetshenziswa njenge-valve yokulawula uhlelo lwedivayisi yokuhlukanisa i-pressure (PSA), i-valve ye-Jinyong yensimbi evalwe kathathu i-eccentric butterfly valve ingasetshenziswa kabanzi ku-petroleum, i-petrochemical, amakhemikhali, i-metallurgical, amandla kagesi kanye ezinye izinkambu.Kuyi-valve yesango kanye ne-globe valve.Umkhiqizo ohlukile omuhle.