Ivalve isetyenziselwa ukuvula nokuvala umbhobho, ukulawula indlela yokuhamba, ukulungelelanisa nokulawula iiparitha zendlela yokuhambisa (ubushushu, uxinzelelo kunye nokuhamba) izincedisi zemibhobho. Ngokomsebenzi wayo, inokwahlulwa ibe yivalve yokuvala, ivalve yokukhangela, ivalve yokulawula, njl.

Ivalve yinxalenye yolawulo kwinkqubo yokuhambisa ulwelo, enemisebenzi yokunqunyulwa, ukulawulwa, ukuphambukiswa, ukuthintela ukuthintela, ukuzinza koxinzelelo, ukuphambuka okanye ukukhululeka kokuphuphumayo, njl njl.

Iivalvu zingasetyenziselwa ukulawula ukuhamba komoya, amanzi, umphunga, imidiya edliwayo, udaka, i-oyile, isinyithi esilulwelo kunye nemithombo yeendaba ene-radioactive kunye nezinye iintlobo zolwelo. Iivalvu ngokwezinto eziphathekayo nazo zahlulwe zibe zivalo zentsimbi, iivalve zentsimbi, iivalve zentsimbi engenanto (201, 304, 316, njl.), ivalve yentsimbi yechromium molybdenum, i-chromium molybdenum vanadium ivalve yentsimbi, iivalvu zentsimbi eziphindwe kabini, iivalvu zeplastiki, iivalve zesiko elingenamgangatho.

I-valve ikwinkqubo yolwelo, esetyenziselwa ukulawula ulwalathiso lwe-fluid, uxinzelelo, ukuhamba kwesixhobo, kukwenza umbhobho kunye nezixhobo eziphakathi (ulwelo, igesi, umgubo) ukuhamba okanye ukumisa nokulawula ukuhamba kwesixhobo.

Ivalve yinxalenye yolawulo lwenkqubo yokuhambisa ulwelo lwemibhobho, esetyenziselwa ukutshintsha icandelo lokuhamba kunye nesalathiso sokuhamba okuphakathi, kunye ne-diversion, cut-off, throttle, check, diversion okanye i-overflow yokunciphisa imisebenzi yokunciphisa uxinzelelo. Ivalve esetyenziselwa ukulawula ulwelo, ukusuka kweyona valve ilula yeglowubhu ukuya kwinkqubo yolawulo oluzenzekelayo entsonkothileyo esetyenziswa kwiintlobo ngeentlobo zeevalvu, ukuhlukahluka kwayo kunye neenkcukacha, ubungakanani begama levalve ukusuka kwivalve yesixhobo esincinci ukuya kubungakanani bevalve yeshishini ukuya kuthi ga kwi-10m. Ingasetyenziselwa ukulawula amanzi, umphunga, i-oyile, igesi, udaka, iintlobo zemithombo yeendaba ezidlekayo, isinyithi esilulwelo kunye nolwelo lwe-radioactive kunye nezinye iintlobo zokuhamba kwamanzi, uxinzelelo olusebenzayo lwevalve lunokusuka kwi-0.0013MPa ukuya kwi-1000MPa yoxinzelelo oluphezulu, ubushushu bokusebenza bunokuba yi-C-270 ℃ yobushushu obuphantsi kakhulu ukuya kwi-1430 ephezulu.

I-valve inokulawulwa ngeendlela ezahlukeneyo zokuhambisa, ezifana ne-manual, umbane, i-hydraulic, i-pneumatic, i-turbine, i-electromagnetic, i-electromagnetic, i-electro-hydraulic, i-electro-hydraulic, i-gas-hydraulic, i-spur gear, i-bevel gear drive; Kuxinzelelo, ubushushu okanye enye ifom phantsi kwentshukumo yemiqondiso yesivamvo, isenzo, ngokwemfuno yogcino okanye ayixhomekanga kwimiqondiso yesixhobo sokuvula okanye ukuvala, ukuxhomekeka kwi-drive okanye kwisixhobo esizenzekelayo esenza ivalve yokuvula kunye nokuvala ukuphakamisa, ukutyibilika, indawo okanye intshukumo ejikelezayo, ukuze utshintshe ubungakanani bezibuko ukuze uqonde umsebenzi wolawulo.