I-valve uvemvane evula futhi evala ucezu ipuleti uvemvane okumise okwediski, elizungeza i-eksisi yalo emzimbeni wevalvu, ngaleyo ndlela ukuzuza ukuvulwa kanye ukuvala noma ukulawula valve kubizwa ngokuthi uvemvane valve. Amavalvu ovemvane ngokuvamile angaphansi kwamadigri angu-90 avulekile futhi avalekile. Ama-valve ovemvane nezinduku zovemvane azinawo amandla okuzivalela. Ukuze kutholwe ipuleti levemvane, isinciphisi segiya lezikelemu kufanele sifakwe esiqwini sevalvu. Ukusetshenziswa kwe-worm gear reducer akukwazi nje ukwenza ipuleti le-butterfly libe nekhono lokuzivala, lenze ipuleti le-butterfly lime kunoma iyiphi indawo, kodwa futhi lithuthukise ukusebenza kwe-valve.
Ama-valve ovemvane ezimbonini abonakala ngokumelana nokushisa okuphezulu, ububanzi bengcindezi ephezulu, ububanzi obuningi obujwayelekile, umzimba we-carbon steel kanye nendandatho yensimbi esikhundleni sendandatho yerabha. Ivalvu yovemvane enkulu enezinga lokushisa eliphezulu ishiselwa ngepuleti lensimbi, elisetshenziselwa ikakhulukazi ipayipi legesi eliwuketshezi kanye nepayipi legesi eliphakathi nendawo lokushisa eliphezulu. I-valve uvemvane olugxilile Izici zesakhiwo sale valve uvemvane ukuthi i-eksisi yesiqu, isikhungo sepuleti uvemvane kanye nendawo emaphakathi yomzimba kusendaweni efanayo. Imodeli yokusetshenziswa inezinzuzo zesakhiwo esilula kanye nokwakhiwa okulula. I-valve evamile ye-butterfly enenjoloba ingeyalolu hlobo.
Okubi ukuthi ipuleti le-butterfly kanye nesihlalo se-valve zihlala zisesimweni sokuphuma, ukuklwebheka, ibanga elikhulu lokumelana nokuguga nokuklebhuka ngokushesha. Ukuze kuxazululwe inkinga ye-extrusion phakathi kwepuleti le-butterfly kanye nesihlalo se-butterfly valve egxilile, kukhiqizwa i-valve eyodwa ye-butterfly eccentric. Isici sawo sesakhiwo ukuthi i-eksisi yesiqu iyachezuka phakathi nendawo yepuleti uvemvane, ukuze isiphetho esingezansi sepuleti uvemvane ayiseyona isikhungo sokuzungezisa, kanye nokukhipha ngokweqile phakathi komkhawulo ophansi wepuleti uvemvane kanye isihlalo sincishisiwe.
I-valve uvemvane oluyi-eccentric ephindwe kabili iyivalve uvemvane oluyi-eccentric esetshenziswa kakhulu kabili, ethuthukiswa nakakhulu ngesisekelo se-valve uvemvane olulodwa oluyi-eccentric. Isakhiwo sibonisa ukuthi i-eksisi yesiqu se-valve iphuma kukho kokubili isikhungo sovemvane kanye nendawo emaphakathi yomzimba. Umthelela we-eccentricity kabili wenza ipuleti levemvane likwazi ukuhlehla esihlalweni sevalvu ngokushesha ngemva kokuvulwa kwevalvu, kuqede kakhulu ukukhishwa ngokweqile okungadingekile nokuklwebheka phakathi kwepuleti uvemvane nesihlalo se-valve, kunciphisa ukumelana nokuvuleka, kunciphisa ukuguga nokudabuka, futhi ukuthuthukisa impilo yesevisi yesihlalo se-valve.