Waalka waxaa loo isticmaalaa in lagu furo oo la xiro dhuumaha, la xakameeyo jihada socodka, hagaajinta iyo xakamaynta xuduudaha dhexdhexaadiyaha gudbinta (heerarka, cadaadiska iyo socodka) qalabka dhuumaha. Marka loo eego shaqadiisa, waxa loo qaybin karaa valve shutoff, valve check, valve regulating, iwm.

Walafku waa qaybta xakamaynta ee nidaamka gudbinta dareeraha, kaas oo leh hawlaha jarista, nidaaminta, leexinta, ka-hortagga ka-hortagga, xasilinta cadaadiska, leexinta ama ka-reebista qulqulka, iwm.

Valves waxaa loo isticmaali karaa in lagu xakameeyo socodka hawada, biyaha, uumiga, warbaahinta daxalaysa, dhoobada, saliidda, birta dareeraha ah iyo warbaahinta shucaaca iyo noocyada kale ee dareeraha. Valves sida laga soo xigtay maaddada waxa kale oo loo qaybiyaa birta birta ah ee shubka ah, tuubooyinka birta ah ee la tuuray, valves birta ah (201, 304, 316, iwm.), chromium molybdenum birta valves, chromium molybdenum vanadium birta birta, laba-wajiile birta valves, balaastikada caaga ah, valves caadooyinka aan caadiga ahayn.

Valve wuxuu ku jiraa nidaamka dareeraha, loo isticmaalo in lagu xakameeyo jihada dareeraha, cadaadiska, socodka qalabka, waa in la sameeyo tuubada iyo qalabka dhexdhexaadka ah (dareere, gaas, budada) socodka ama joojinta iyo xakamaynta socodka qalabka.

Waalka waa qaybta kontoroolka ee habka gudbinta dareeraha dhuumaha, loo isticmaalo in lagu beddelo qaybta marinka iyo jihada socodka dhexdhexaadka ah, iyada oo la leexinayo, gooyn, ceejinta, hubinta, leexinta ama hawlaha gargaarka cadaadiska qulqulka. Valve loo isticmaalo xakamaynta dareeraha, laga bilaabo waalka aduunka ugu fudud ilaa nidaamka xakamaynta tooska ah ee aad u adag ee loo isticmaalo noocyada kala duwan ee valves, kala duwanaanshihiisa iyo qeexitaankiisa, xajmiga magaca ee waalka laga soo bilaabo qalabka aadka u yar ilaa xajmiga tuubada dhuumaha warshadaha ilaa 10m. Waxaa loo isticmaali karaa in lagu xakameeyo biyaha, uumiga, saliidda, gaaska, dhoobada, noocyo kala duwan oo warbaahinta daxalka, biraha dareere ah iyo dareere shucaac ah iyo noocyada kale ee socodka dareere, cadaadiska shaqada ee waalka noqon karaa 0.0013MPa in 1000MPa of cadaadis ultra-sare, heerkulka shaqada noqon kartaa C-270 ℃ of heerkulka ultra-hoose ilaa 13.

Waalka waxaa lagu xakameyn karaa noocyo kala duwan oo ah hababka gudbinta, sida buug-gacmeedka, koronto, hydraulic, pneumatic, turbine, electromagnetic, electromagnetic, electro-hydraulic, electro-hydraulic, gaas-hydraulic, spur gear, bevel gear drive; Cadaadiska, heerkulka ama qaab kale oo hoos yimaada ficilka calaamadaha dareemayaasha, ficil, sida waafaqsan shuruudaha boos celinta ama kuma xirna calaamadaha dareemayaasha ee fudud ee furan ama la xiray, ku tiirsan wadista ama habka otomaatiga ah ee ka dhigaya furitaanka iyo xidhitaanka valve ee qaadista, silbashada, meel ama dhaqdhaqaaqa wareega, si loo beddelo xajmiga dekedda si loo ogaado shaqada xakamaynta.