1 Lintlha tsa bohlokoa bakeng sa khetho ea li-valve

1.1 Hlakisa sepheo sa valve sesebelisoa kapa sesebelisoa

Etsa qeto ea maemo a sebetsang a valve: mofuta oa sebaka se sebetsang, khatello ea ho sebetsa, mocheso oa ho sebetsa le mekhoa ea ho laola ts'ebetso, joalo-joalo;

1.2 Khetho e nepahetseng ea mofuta oa valve

Ntho e hlokahalang bakeng sa khetho e nepahetseng ea mofuta oa valve ke hore moqapi o utloisisa ka botlalo ts'ebetso eohle ea tlhahiso le maemo a sebetsang. Ha baqapi ba khetha mefuta ea li-valve, ba lokela ho qala ho utloisisa litšobotsi tsa sebopeho le ts'ebetso ea valve ka 'ngoe;

1.3 Etsa qeto ea mokhoa oa ho emisa valve

Har'a likhokahano tse kentsoeng, likhokahano tsa flange, le likhokahano tse cheselitsoeng pheletsong, tse peli tsa pele ke tsona tse sebelisoang haholo.Li-valve tse nang le likhoelehaholo-holo li-valve tse nang le bophara ba lebitso bo ka tlase ho 50mm. Haeba bophara bo le boholo haholo, ho tla ba thata haholo ho kenya le ho tiisa khokahanyo. Li-valve tsa khokahanyo ea flange li bonolo ho kenya le ho qhaqha, empa li kholoanyane ebile li theko e boima ho feta li-valve tse nang le khoele, kahoo li loketse ho hokahanya liphaephe tsa bophara ba liphaephe tse fapaneng le likhatello. Lihokelo tse cheselitsoeng li loketse maemo a boima bo boima 'me li tšepahala ho feta likhokahano tsa flange. Leha ho le joalo, ho thata ho qhaqha le ho tsosolosa li-valve tse cheselitsoeng, kahoo tšebeliso ea tsona e lekanyelitsoe ho maemo ao hangata a ka sebetsang ka botšepehi ka nako e telele, kapa moo maemo a sebetsang a leng thata le mocheso o phahameng;

1.4 Khetho ea lisebelisoa tsa valve

Ha u khetha lisebelisoa bakeng sa matlo a li-valve, likarolo tsa ka hare le libaka tsa ho tiisa, ho phaella tabeng ea ho nahana ka thepa ea 'mele (mocheso, khatello) le thepa ea lik'hemik'hale (ho senyeha) ha mochine o sebetsang, bohloeki ba seaplane (ho ba teng kapa ho se be teng ha likaroloana tse tiileng. ) le tsona li lokela ho nahanoa li lokela ho nahanoa. Ho feta moo, o tlameha ho shebana le melaoana e amehang ea naha le lefapha la basebelisi. Khetho e nepahetseng le e utloahalang ea lisebelisoa tsa li-valve e ka netefatsa bophelo ba tšebeletso ea moruo ka ho fetisisa le ts'ebetso e ntle ka ho fetisisa ea valve. Tatelano ea khetho ea lisebelisoa tsa li-valve ke: tšepe e entsoeng ka tšepe-carbon steel-stainless steel, le tatellano ea khetho ea lesale la ho tiisa: tšepe ea rabara-copper-alloy-F4;

1.5 Tse ling

Ho phaella moo, lebelo la ho phalla le khatello ea mokelikeli o phallang ka valve e lokela ho khethoa 'me valve e loketseng e khethoe ho sebelisa boitsebiso bo fumanehang (joaloka likhalase tsa lihlahisoa tsa li-valve, mehlala ea lihlahisoa tsa li-valve, joalo-joalo).

2 Selelekela ho li-valve tse sebelisoang hangata

Ho na le mefuta e mengata ea li-valve, ho kenyelletsa li-valve tsa heke, li-valve tsa globe, li-valve tsa throttle, li-valve tsa serurubele, li-valve tsa plug, li-valve tsa bolo, li-valve tsa motlakase, li-diaphragm, li-valve tsa ho hlahloba, li-valve tsa tšireletso, li-valve tse fokotsang khatello, maraba le li-valve tsa tšohanyetso tse koalang, har'a tse sebelisoang ka tloaelo Ho na le li-valve tsa heke, li-valve tsa globe, li-valve tsa throttle, li-valve tsa plug, li-valve tsa serurubele, li-valve tsa bolo, li-valve tsa ho hlahloba, li-diaphragm, joalo-joalo.

2.1Belofo ea heke

Belofo ea heke e bua ka belofo eo 'mele oa eona oa ho bula le ho koala (poleiti ea valve) o khannoang ke kutu ea valve' me e ea holimo le tlaase ho ea holimo le holim'a sebaka se koalang sa setulo ho hokahanya kapa ho khaola mocha oa mokelikeli. Ha ho bapisoa le li-valve tsa ho emisa, li-valve tsa heke li na le ts'ebetso e ntle ea ho tiisa, ho hanyetsa mokelikeli o monyenyane, boiteko bo fokolang ba ho bula le ho koala, le ho ba le ts'ebetso e itseng ea ho lokisa. Ke e 'ngoe ea li-valve tsa ho emisa tse sebelisoang hangata. Bothata ke hore e kholoanyane ka boholo le ho rarahane ka sebopeho ho feta valve ea ho emisa. Sebaka sa ho tiisa se bonolo ho apara 'me ho thata ho se boloka, kahoo ka kakaretso ha sea lokela ho thothomela. Ho ea ka boemo ba khoele holim'a kutu ea valve ea valve ea heke, e arotsoe ka mekhahlelo e 'meli: mofuta oa stem o bulehileng le mofuta o patiloeng. Ho ea ka litšobotsi tsa sebopeho sa heke, e ka aroloa ka mefuta e 'meli: mofuta oa wedge le mofuta o tšoanang.

2.2Emisa valve

Belofo ea globe ke valve e koalang ho ea tlase. Likarolo tse bulang le tse koalang (li-valve discs) li khannoa ke kutu ea valve ho ea holimo le tlase haufi le axis ea setulo sa li-valve (sealing surface). Ha li bapisoa le li-valve tsa heke, li na le ts'ebetso e ntle ea taolo, ts'ebetso e mpe ea ho tiisa, sebopeho se bonolo, tlhahiso le tlhokomelo e bonolo, ho hanyetsa mokelikeli o moholo, le theko e tlase. Ke valve ea ho emisa e sebelisoang hangata, e sebelisoang hangata liphaepheng tse mahareng le tse nyane tsa bophara.

2.3 valve ea bolo

Karolo e bulang le e koalang ea valve ea bolo ke bolo e nang le selikalikoe ka lesoba. Bolo e potoloha le kutu ea valve ho bula le ho koala valve. Valve ea bolo e na le sebopeho se bonolo, ho bula le ho koala ka potlako, ts'ebetso e bonolo, boholo bo nyane, boima bo bobebe, likarolo tse fokolang, ho hanyetsa mokelikeli o monyenyane, ho tiisa hantle le tlhokomelo e bonolo.