Iivalve yesangolisango lokuvula kunye nokuvala.Indlela yokuhamba yesango i-perpendicular ukuya kwicala le-fluid.Ivalve yesango inokuvulwa ngokupheleleyo kwaye ivalwe ngokupheleleyo, kwaye ayikwazi ukulungiswa okanye i-throttled.Ivalve yesango itywinwe luqhagamshelwano phakathi kwesitulo sevalve kunye nepleyiti yesango.Ngokuqhelekileyo, indawo yokutywina iya kujongana nezixhobo zetsimbi ukunyusa ukuxhathisa ukunxiba, njengokujonga i-1Cr13, i-STL6, insimbi engenasici, njl.Ngokwamasango ahlukeneyo, ivalve yesango yohlulwe ibe yivalve yesango eqinileyo kunye nevalve yesango elastiki.

Inxalenye yokuvula kunye nokuvala i-valve yesango yisango, kwaye ulwalathiso lokuhamba kwesango luyi-perpendicular ukuya kwicala le-fluid.Ivalve yesango inokuvulwa ngokupheleleyo kwaye ivalwe ngokupheleleyo, kwaye ayikwazi ukulungiswa okanye i-throttled.Isango linemigangatho emibini yokutywina.Imiphezulu emibini yokutywina yevalve yesango yendlela esetyenziswa ngokuxhaphakileyo yenza imilo yewedge.I-engile ye-wedge iyahluka kunye neeparamitha zevalve, ngokuqhelekileyo ngu-5 °, kunye ne-2 ° 52′ xa ubushushu obuphakathi bungekho phezulu.Isango levalve yesango le-wedge linokwenziwa liphelele, elibizwa ngokuba lisango eliqinileyo;ingenziwa kwakhona kwisango elinokuvelisa inani elincinci lokuguqulwa kokuphucula ubugcisa bayo kunye nokwenza ukuphambuka kwe-angle yokutywinwa komhlaba ngexesha lokucubungula.Ipleyiti ibizwa ngokuba yisango elastiki.Xa ivalve yesango ivaliwe, indawo yokutywina inokutywinwa kuphela ngoxinzelelo oluphakathi, oko kukuthi, ukuxhomekeka kuxinzelelo oluphakathi ukucinezela indawo yokutywina yesango ukuya kwisihlalo sevalve kwelinye icala ukuqinisekisa ukutywinwa kokutywinwa. umphezulu, nto leyo yokuzitywina.Uninzi lwee-valve zesango zitywinwe ngenkani, oko kukuthi, xa i-valve ivaliwe, isango kufuneka linyanzeliswe ngokuchasene nesihlalo sevalve ngamandla angaphandle ukuze kuqinisekiswe ukuqina kwendawo yokutywina.Isango levalve yesango lihamba ngokulandelelana kunye nesikhondo sevalve, ebizwa ngokuba yivalve yesango yokuphakamisa, ekwaziwa ngokuba yivalve yesango enyukayo.Ngokuqhelekileyo, kukho imicu ye-trapezoidal kwintonga yokunyusa.Ngokusebenzisa i-nut ephezulu yevalve kunye ne-groove yesikhokelo kumzimba wevalve, intshukumo ejikelezayo iguqulwa ibe yintshukumo yomgca, oko kukuthi, i-torque yokusebenza iyatshintshwa ibe yi-thrust yokusebenza.Xa i-valve ivuliwe, xa ukuphakama kwesango lilingana no-1: 1 amaxesha ububanzi be-valve, umjelo we-fluid awuphazamiseki, kodwa esi sikhundla asikwazi ukubeka iliso ngexesha lokusebenza.Ekusetyenzisweni kwangempela, i-apex ye-valve stem isetyenziswe njengophawu, oko kukuthi, indawo apho ayikwazi ukuvulwa, njengendawo yayo evulekile ngokupheleleyo.Ukuze kuthathelwe ingqalelo into eyenziwa yi-lock-up phenomenon ebangelwa utshintsho lweqondo lokushisa, ngokuqhelekileyo luvulwa kwindawo ephezulu, kwaye emva koko iguqulwe ngu-1 / 2-1 ukujika, njengendawo ye-valve evulekile ngokupheleleyo.Ngoko ke, indawo evulekile ngokupheleleyo yevalve inqunywe ngokwendawo yesango, oko kukuthi, ukubetha.Kwezinye iivalve zesango, i-stem nut ibekwe kwisango, kwaye ukujikeleza kwe-handwheel kuqhuba i-valve stem ukuba ijikeleze, eyenza isango liphakamise.Olu hlobo lwevalve lubizwa ngokuba yivalve yesango yesiqu esijikelezayo, okanye ivalve yesango elimnyama.