Ngeminyaka yee-1930, iivelufa butterflyyadalwa eUnited States, kwaye ngeminyaka yee-1950, yaziswa eJapan. Ngelixa ingazange isetyenziswe ngokuqhelekileyo eJapan de kwaba ngoo-1960, ayizange yaziwe apha kude kube ngowe-1970.

Iimpawu eziphambili zevalve yebhabhathane bubunzima bayo bokukhaphukhaphu, unyawo lofakelo olubambeneyo, kunye netorque ephantsi yokusebenza. Ivalve yebhabhathane inobunzima obujikeleze i-2T, ngelixa ivalve yesango inobunzima obumalunga ne-3.5T, isebenzisa i-DN1000 njengomzekelo. Ivalve yebhabhathane inomgangatho owomeleleyo wokuqina kunye nokuthembeka kwaye kulula ukudibanisa kunye neendlela ezahlukeneyo zokuqhuba. I-drawback ye-rubber-sealed butterfly valve kukuba, xa isetyenziswe ngokungafanelekanga njenge-valve ye-throttling, i-cavitation iya kwenzeka, ibangele ukuba isihlalo se-rubber sihlambuluke kwaye sonakaliswe. Ukhetho oluchanekileyo, ke ngoko, luxhomekeke kwiimfuno zeemeko zokusebenza. Isantya sokuqukuqela sitshintsha ngokusisiseko njengomsebenzi wokuvuleka kwevalve yebhabhathane.

Ukuba isetyenziselwa ukulawula ukuhamba, iimpawu zayo zokuhamba zihambelana ngokusondeleyo kunye nokumelana nokuhamba kombhobho. Umyinge wokuhamba kweevalvu, umzekelo, uya kwahluka kakhulu ukuba imibhobho emibini ifakwe kwidayamitha yevalve efanayo kunye nefom, kodwa i-coefficients yokulahleka kwemibhobho eyahlukileyo. I-Cavitation inokwenzeka ukuba yenzeke ngasemva kwepleyiti yevalve ngelixa i-valve ikwindawo enzima ye-throttling, enokwenzakalisa ivalve. kusetyenziswa rhoqo ngaphandle kwi-15 °.

Iivelufa butterflyyenza imeko eyahlukileyo xa iphakathi kokuvuleka kwayo, xa ipleyiti yebhabhathane ingaphambili kunye nomzimba wevalvu zibekwe embindini wevalve shaft. Umphambili wepleyiti yebhabhathane usiya kwicala elinye.

Ngenxa yoko, umzimba wevalvu usecaleni elinye kunye neivalveipleyiti idityaniswe yenze i-nozzle-like aperture, ngelixa elinye icala lifana ne-throttle. Igasket yerabha yazihlukanisa. I-torque yevalve yebhabhathane iyahluka ngokuvula nokuvala kwevalve. Ngenxa yobunzulu bamanzi, i-torque eveliswa ngumahluko phakathi kweentloko zamanzi eziphezulu kunye nezisezantsi ze-valve shaft ayinakungahoywa kwiivalve ze-butterfly ezithe tye, ngakumbi iivalve ezinobubanzi obukhulu.

Ukongezelela, ukuhamba kwe-bias kuya kwenza kwaye i-torque iya kuphakama xa i-elbow ifakwe kwicala lokungena levalve. Ngenxa yempembelelo ye-torque yamanzi xa i-valve iphakathi kokuvula, indlela yokusebenza kufuneka izivalele.