Ivalvu yebhabhathane eliyindilinga elingunxantathu

I-valve ye-butterfly enezinhlangothi ezintathu isetshenziswa kakhulu ezinhlelweni zamapayipi ezimboni lapho izidingo eziphezulu zibekwe khona ekuthembekeni kokuvala kanye nokuzinza kokusebenza. Ifanele ukusetshenziswa okunesikhathi eside sokusebenza, ukuvulwa nokuvalwa okuvamile, noma izinguquko ezibalulekile ezimweni zokusebenza. Lolu hlobo lwe-valve lusebenzisa isakhiwo sokuvala insimbi esinezinhlangothi ezintathu. Ngesikhathi senqubo yokuvula nokuvala, ipuleti le-butterfly lihamba ngendlela esethiwe, futhi akukho ukuxhumana okushelelayo phakathi kwalo nesihlalo se-valve. Lokhu kunciphisa ukuguguleka ezindaweni zokuvala kusukela ekubukeni kwesakhiwo.
Ekusebenzeni kwangempela, ipuleti le-butterfly lithintana kuphela nesihlalo se-valve esigabeni sokugcina sokuvalwa kwe-valve ephelele. Ngesikhathi senqubo yokuvala, ipuleti le-butterfly linamathela kancane kancane esihlalweni se-valve yensimbi ukuze lenze uphawu, kunokuba lifinyelele ekunqanyulweni okusheshayo. Le ndlela yokuvala eqhubekayo inomthelela omncane esimweni sokuvala ngemva kokuvulwa nokuvalwa okuningi, okuzuzisa ukugcina ukusebenza okuzinzile kwe-valve isikhathi eside sokusebenza. Lolu hlobo lwe-valve ye-butterfly enezinhlangothi ezintathu lusetshenziswa kakhulu ezinhlelweni zamapayipi ezinobukhulu obuphakathi nobukhulu obukhulu. Ububanzi obujwayelekile obujwayelekile buvame ukusuka ku-DN50 kuya ku-DN600, obuhambisana cishe no-2″ kuya ku-24″ ngobukhulu bombuso. Ngokuphathelene nezilinganiso zokucindezela, lungasetshenziswa ezimweni zokusebenza ze-Class 150 kuya ku-Class 2500, ukuhlangabezana nezidingo zokusetshenziswa kwamapayipi ezimboni avamile kanye nezinhlelo zokucindezela okuphezulu.
Izinto zomzimba we-valve zivame ukukhethwa ngokusekelwe ezicini zesimo esiphakathi nendawo, ingcindezi yokusebenza kanye nezimo zokushisa. Ngaphansi kwezimo zokusebenza ezijwayelekile, i-A105, i-LF2 kanye nezinye izinto zensimbi ezibunjiwe zingasetshenziswa; ekusetshenzisweni okudinga izinga lokushisa eliphakeme noma ukumelana nengcindezi, i-F11, i-F22 kanye nezinye izinsimbi ze-alloy zingakhethwa; lapho i-medium igqwala noma inezidingo zokuhlanzeka kwezinto, izinsimbi zensimbi engagqwali noma ezisekelwe ku-nickel ezifana ne-Hastelloy C-276 kanye ne-Inconel 718 nazo zingasetshenziswa. Ukucushwa kwezinto ezithile kungalungiswa ngokuya ngezimo zokusebenza zephrojekthi. Le valve ngokuvamile ixhunywe nge-flange. Ubukhulu bokuxhumana kanye namazinga kungenziwa ngokuhambisana nezincazelo ezivamile njenge-ASME kanye ne-EN, okulula ukuyifaka kanye nohlelo lwamapayipi olukhona. Ngokuphathelene nemodi yokusebenza, ukucaciswa kobubanzi obuncane kungasetshenziswa ngesandla; njengoba ububanzi bukhula, ibhokisi legiya livame ukulungiselelwa, futhi ama-actuator omoya noma kagesi nawo angakhethwa ngokuya ngezimfuneko zokulawula.
Ububanzi bokushisa obufanele bevalvu buxhomeke kakhulu ekuhlanganisweni kwezinto zomzimba wevalvu kanye nesakhiwo sokuvala insimbi. Ngokukhetha uhlobo olufanele, lungahlangabezana nezidingo zokusetshenziswa ngaphansi kwezimo zokushisa ezahlukene. Ezimbonini ezifana ne-petroleum, ubunjiniyela bamakhemikhali, amandla, i-metallurgy, kanye nemisebenzi yomphakathi, lolu hlobo lwevalvu yebhabhathane emithathu engavamile lusetshenziswa kakhulu ekulawuleni ukuvala noma ukunqamula kwe-medium. Ngenxa yokungabikho kokungqubuzana okuqhubekayo phakathi kwezindawo zokuvala ngesikhathi senqubo yokuvula nokuvala, ivalvu ibhekana nokuguguleka okuncane esikhathini eside sokusebenza, okusiza ukunciphisa imvamisa yokulungisa nokwandisa impilo yesevisi iyonke.