of Chinese Stone Machinery
ingqwalasela ekuveliseni iingqukuva zevalvu ezidadayo.Uyilo oludadayo luthetha ukuba amakhonkco amabini ezihlalo asetyenziselwa ukuxhasa ibhola kuhlobo lwevalve yebhola edadayo.Olu yilo lwenza ibhola idada okanye ihambe isiya kwicala leringi yesitulo ngaphezulu.Olu luyilo lufanelekile ubungakanani obuncinci kunye neevalve zebhola eziphantsi.
Ibhola eyomeleleyo yenziwe ngoomatshini bokuphosa okanye ukubunjwa.Ibhola eqinileyo idla ngokuthathwa njengesona sisombululo silungileyo ebomini.Kwaye iibhola eziqinileyo zisetyenziswa ikakhulu kwiimeko zoxinzelelo oluphezulu.
Ibhola eHollow yenziwe ngepleyiti yentsimbi edityanisiweyo okanye iityhubhu zentsimbi ezingenamthungo.Ibhola elinomgobho linciphisa umthwalo we-spherical surface kunye nesihlalo sevalve ngenxa yobunzima bayo obulula, okunceda ukwandisa ubomi benkonzo yesihlalo sevalve.
Ibhola ekwi-trunnion efakwe kwivalve yebhola ayizushukuma ngenxa yokuba ibhola yevalve ye-trunnion inesinye isikhondo esisezantsi sokumisa indawo yebhola.Iibhola zevalve yohlobo lwe-trunnion zisetyenziswa ikakhulu kwiimeko zoxinzelelo oluphezulu kunye neevalvu ezinkulu zebhola.