Isifinyezo kanye nokuhlukaniswa kwamavalve evemvane

I-valve uvemvane yayikade ibekwe njenge-valve yokuvuza futhi yayisetshenziswa kuphela njengepuleti levalvu.
Kwaze kwafika ngo-1950 lapho irabha yokwenziwa yasetshenziswa ngempela, futhi irabha yokwenziwa yasetshenziswa eringini yesihlalo se-valve uvemvane, futhi i-valve uvemvane njenge-valve enqanyuliwe yenza i-debut yayo.

Izigaba ze-butterfly valves:
Ama-valve ovemvane ahlukaniswa ngokwesakhiwo, uxhumano lwamapayipi, ipuleti, njll.

I-Center Disc butterfly valve:
Isakhiwo lapho indawo yokuhlala ngaphandle kwe-valve flap isendaweni efanayo naphakathi kwesiqu se-valve.
Ingxenye engaphakathi ye-peripheral yomzimba we-valve ishumekwe nesakhiwo seringi yesihlalo senjoloba.Lena ivalvu emelwe yilokho okubizwa ngokuthi i-valve butterfly plate yenjoloba emise okumaphakathi.Ngokucindezelwa kwenjoloba, amandla anwebekayo e-valve uvemvane nendawo yesihlalo asetshenziswa ngempumelelo, ukuze kuvaleke kahle isihlalo.

I-Eccentric butterfly valve:
Isikhungo sokujikeleza (isiqu) se-disc siphakathi nendawo yobubanzi be-valve, futhi isisekelo se-disc siyisakhiwo se-eccentric.Indandatho yesihlalo iyafana ne-eccentric shape eyodwa futhi inomsebenzi omuhle wokuvala.

Ivalve yevemvane ene-Tri-eccentric:
Kuyisakhiwo lapho i-eccentricity ephindwe kabili yengezwa, futhi isikhungo sekhoni yepuleti uvemvane sithambekele ukusuka phakathi nendawo yobubanzi be-valve yesenzakalo.
I-eccentricity kathathu ayiyithinti indandatho yesihlalo yensimbi emise okwepuleti lapho ipuleti levemvane livulwa futhi livalwa, futhi ipuleti uvemvane kuphela elinamandla okucindezela iringi yesihlalo njengevalvu yokuvala lapho ivaleke ngokugcwele.

I-Wafer butterfly valve:
I-valve uvemvane oluyicwecwe isebenzisa amabhawodi e-stud ukuxhuma ivalvu phakathi kwama-flange amabili wamapayipi.Kunezinhlobo ezimbili zama-protrusions, uhlobo lwe-lug olugcwele kanye nohlobo lwe-lug olungaphelele.

Lawa ma-valve angacutshungulwa ngowethuUmshini Okhethekile Wevalvu.