1.Isisetshenziswa sokusebenza

Ngokusho kwemidiya ehlukene yokusebenza, kuyadingeka ukukhetha izinto ezinokumelana nokugqwala okuhle.Isibonelo, uma i-medium ingamanzi anosawoti noma amanzi olwandle, i-aluminium bronze disc valve ingakhethwa;Uma okuphakathi kuyi-asidi eqinile noma i-alkali, i-tetrafluoroethylene noma i-fluororubber ekhethekile ingakhethwa njengento yesihlalo sevalvu.

2.Ingcindezi yokusebenza kanye nezinga lokushisa

i-rubber seal butterfly valveisidingo sokusebenza ngokujwayelekile ngaphakathi kwengcindezi yokusebenza ecacisiwe kanye nobubanzi bokushisa, ngakho-ke kuyadingeka ukukhetha izinto ezinamandla anele nokumelana nokushisa.

3. Izimo zemvelo

Cabanga ngezimo zemvelo lapho i-valve itholakala khona, njengomswakama, isifutho sikasawoti, njll, bese ukhetha izinto ezifanele. 

4.Valve impahla yomzimba

Izinto ze-valve zomzimba zeI-valve ye-butterfly ye-flangezihlanganisa grey cast iron, ductile iron, cast steel, stainless steel, njll. Phakathi kwazo, insimbi engagqwali inokusebenza okuhle kakhulu, kodwa izindleko ziphakeme kakhulu.Uma kusendaweni enengcindezi ephansi, ukusebenza kwensimbi ye-ductile kungase kuqhathaniswe nalokho kwensimbi ekhonjiwe, futhi izindleko zokusebenzisa izinto zensimbi ezidonsa amanzi ziphansi.

5.Valve isihlalo impahla

Izinto zokuhlala zei-worm gear butterfly valvezihlanganisa iraba kanye fluoroplastics.Izihlalo zamavalvu enjoloba zingasetshenziswa emithonjeni ye-acidic ebuthakathaka ne-alkaline njengamanzi, isitimu, namafutha, ngokusebenza kahle kokuvala;Izihlalo zamavalvu e-Fluoroplastic zisetshenziswa emithonjeni egqwala kakhulu.

6. Butterfly disc impahla

Izinto ze-butterfly disc zamavalvu ovemvane okwenziwa ngesandla ikakhulukazi zifaka i-ductile iron nensimbi engagqwali.Ngezinye izikhathi, ukuze uvumelane nezimo zemidiya eziyinkimbinkimbi, kuyadingeka ukugoqa i-butterfly disc ngeglue noma impahla ye-PTFE.

7.Impahla ye-valve shaft

Iningi lazo lenziwe ngezinto zensimbi engagqwali, futhi izimo ezikhethekile zingenziwa ngokwezifiso ngokwezidingo.

8.Drive impahla

Kunezindlela ezimbili eziyinhloko zokusebenza ngesandla, isibambo kanye negiya lezikelemu.Izinto zokubamba zihlanganisa ikakhulukazi insimbi ekhonjiwe, i-carbon steel, insimbi engagqwali, i-aluminium alloy, njll;Impahla yekhanda legiya lezikelemu iningi lensimbi eyinsimbi.

Kafushane, ukukhethwa kwekhwalithi yezinto ezibonakalayoi-butterfly valve manualkufanele icubungule kabanzi izici ezifana nendawo yokusebenza, ingcindezi yokusebenza kanye nezinga lokushisa, izimo zemvelo, kanye nezinto zomzimba we-valve, isihlalo se-valve, i-butterfly disc, ne-valve shaft.Ukukhethwa kwezinto ezifanele kungaqinisekisa ukusebenza okuvamile kanye nempilo yesevisi yei-valve butterfly yamanzi.