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.