Mfundo ntchito ya valavu cheke.

Ma valve owunikira angagwiritsidwenso ntchito pa mapaipi pomwe kupanikizika mu dongosolo lothandizira kumatha kukwera pamwamba pa kuthamanga kwa dongosolo.Onani mavavuZitha kugawidwa m'magulu a ma valve (omwe amazungulira pakati pa mphamvu yokoka) ndi ma valve okweza (omwe amayenda motsatira nsonga).

Ntchito ya mtundu uwu wa valve yowunika ndikulola kuti sing'angayo iziyenda munjira imodzi yokha ndikuletsa kubwereranso. Nthawi zambiri, valavu iyi imagwira ntchito yokha. Pansi pa kupanikizika kwa madzimadzi akuyenda kumbali imodzi, valavu ya valve imatsegula; pamene madzi amadzimadzi akuyenda mosiyana, kuthamanga kwamadzimadzi ndi kudzilemera kwa valve disc kumachita pampando wa valve, motero kumadula kutuluka.

Valve yowunikira ndi mtundu umodzi wa valve. Zimaphatikizapo ma valve oyendera cheke ndi ma valve okweza. Valavu yoyang'ana pa swing ili ndi makina a hinge ndi diski ya valve yomwe imakhazikika momasuka pampando wapampando wa valve ngati chitseko. Kuonetsetsa kuti diski ya valve nthawi zonse imatha kufika pamalo oyenera pampando wa valve nthawi iliyonse, diski ya valve imapangidwa ndi makina a hinge kuti diski ya valve ikhale ndi malo okwanira osunthira ndipo imatha kukhudzana ndi mpando wa valve. Disiki ya valve imatha kupangidwa ndi chitsulo chonse kapena ikhoza kukhala ndi chikopa, mphira, kapena chivundikiro chopangidwa ndi laminated pa izo, malingana ndi zofunikira za ntchito.

Pamene valavu yoyang'ana swing imatsegulidwa kwathunthu, kuthamanga kwamadzimadzi kumakhala kosasunthika, kotero kutsika kwapakati pa valve kumakhala kochepa. Diski ya valavu yowunikira ili pamtunda wosindikizira wa mpando wapamwamba wa valve ya thupi la valve. Valve iyi, kupatula kulola diski kuwuka ndi kugwa mwaufulu, ili ndi dongosolo lofanana ndi valve yoyimitsa. Kuthamanga kwamadzimadzi kumapangitsa kuti diski itulutse pamwamba pa chisindikizo cha mpando wa valve, ndipo kubwerera kwa sing'anga kumapangitsa kuti diski igwerenso pampando wa valve ndikudula kutuluka.

Malingana ndi momwe ntchito ikugwirira ntchito, diski ya valve ikhoza kukhala yachitsulo chokwanira kapena mawonekedwe a mphira wa rabara kapena mphete ya mphira yomwe imayikidwa pa diski ya valve. Mofanana ndi valavu yoyimitsa, njira yothamanga ya valavu yowunikira imakhalanso yopapatiza, kotero kuti kuthamanga kutsika kupyolera muzitsulo zoyendetsa galimoto kumakhala kwakukulu kuposa valavu yoyang'ana swing, ndipo kutsekedwa kwa valve yothamanga ndi kochepa kwambiri.