Asebenza kanjani ama-valve alawulayo, ama-globe valves, ama-valve esango namasheke

I-valve yokulawula, ebizwa nangokuthi i-valve yokulawula, isetshenziselwa ukulawula ubukhulu boketshezi. Lapho ingxenye elawulayo ye-valve ithola isignali elawulayo, i-valve stem izolawula ngokuzenzakalelayo ukuvulwa nokuvalwa kwe-valve ngokusho kwesignali, ngaleyo ndlela ilawula izinga lokugeleza kwamanzi nokucindezela; evame ukusetshenziselwa ukushisa, igesi, i-petrochemical namanye amapayipi.

Misa i-valve, eyaziwa nangokuthi i-valve yokumisa, ingavala ngokuphelele indawo yokuhlala ye-valve ngokufaka ingcindezi ngokuzungezisa isiqu se-valve, ngaleyo ndlela ivimbele ukugeleza koketshezi; amavalvu okumisa ngokuvamile asetshenziswa kugesi yemvelo, igesi ewuketshezi, i-sulfuric acid nakwamanye amapayipi egesi egqwalayo kanye namapayipi awuketshezi.

I-valve yesangokufana nesango. Ngokuzungezisa isiqu se-valve, ipuleti lesango lilawulwa ukuthi lihambe liye phezulu naphansi ukuze lilawule uketshezi. Izindandatho zokuvala ezinhlangothini zombili zepuleti lesango zingavala ngokuphelele sonke isigaba. I-valve yesango ingavulwa ngokugcwele futhi ivalwe ngokugcwele, futhi ayikwazi ukusetshenziselwa ukulawula ukugeleza. Ama-valve esango asetshenziswa kakhulu njengemishini yokucabela emanzini kampompi, indle, imikhumbi namanye amapayipi.
 

I-valve yokuhlola i-swingincike ekucindezelweni koketshezi ukuze uvule ikhava yevalvu. Lapho umfutho woketshezi olusesikhaleni se-valve namapayipi aphumayo ulinganisela, isembozo sevalvu singavala ngokwaso amandla adonsela phansi ukuze kuvinjwe uketshezi ukuba lungadluli. Umsebenzi wawo oyinhloko ukuvimbela uketshezi ukuthi lungabuyeli emuva. Ukugeleza, kungokwesigaba se-automatic valve; ikakhulukazi esetshenziswa petroleum, amakhemikhali, imithi kanye namanye amapayipi.