Khetho e loketseng ea mofuta oa li-valve e ka fokotsa tšebeliso ea thepa, ea fokotsa khanyetso ea lehae le tšebeliso ea matla, ea thusa ho kenya le ho fokotsa tlhokomelo.Sehloohong sena, Valve ea Dongsheng e u tsebisitse hore na ke li-valve life tse sebelisetsoang metsi a leoatle.
1.Belofo ea ho tima
Bophahamo ba phala ea ts'ebetso ho hloekisoang metsi a leoatle ka bongata bo boholo hangata ke DN300-DN1600, e fetang sebaka sa tšebeliso ea kakaretso.li-valve tsa bolole li-valve tsa globe.Ha ho bapisoa lebelofo ea hekeea boemo bo tšoanang (Z41H), thevalve ea serurubelee na le melemo ea sebopeho se bonolo, ho hanyetsa kutu ho bonolo, bolelele bo khuts'oane ba ho kenya, tšebeliso e fokolang ea tšepe, le li-coefficients tse tšoanang tsa ho hanyetsa karolo ea valve.Ke chelete e ngata ebile e sebetsa ho khetha valve ea serurubele e le valve e koalang.Ho ea ka boemo ba khatello, li-valve tsa serurubele li ka aroloa ka li-valve tsa serurubele tse nang le khatello e tlaase le li-valve tsa serurubele tse nang le khatello e phahameng.
Khatello e tlase ea serurubele valve
Belofo ea serurubele e nang le khatello e tlase e ka nka valve ea serurubele sa rabara e se nang phini e bohareng.Ha valve ea serurubele e le tlase kapa e lekana le DN500, khokahano ea serurubele e amoheloa.Ha valve ea serurubele ≥DN550, khokahano ea flange e amoheloa.Ha bophara ba valve ea serurubele bo le tlase kapa bo lekana le 6in.(DN150), matla a ho bula a ka tlase ho 400N, 'me a sebetsa ka letsoho.Ha bophara ba valve ea serurubele e le ≥8in.(DN200), e sebetsa ka lebokose la gear.Ka lebaka la khatello e tlaase ea mokokotlo oa valve ea khatello e tlaase, tšebeliso ea mohaho oa centerline e ke ke ea eketsa torque e ngata haholo.Mohaho ona o na le litiiso tse peli.Tiiso e ka sehloohong e fumanoa ka matla a ho tiisa pele ho poleiti ea serurubele le setulo sa valve, 'me tiiso ea bobeli e fumanoa ka ho kena-kenana le sekhahla sa kutu ea valve le lesoba la setulo sa valve.Kaha sefate sa valve se arohane ka ho feletseng ho tloha bohareng 'me ha se nke metsi a leoatle, sefate sa valve se ka etsoa ka 2Cr13 kapa lisebelisoa tse lekanang.'Mele oa valve o entsoe ka ductile iron linening EPDM ho eketsa ts'ebetso ea ho tiisa.Kaha 'mele oa valve ha o kopane le bohareng, litlhoko tsa ts'ebetso ea thepa ea' mele oa valve li fokotsehile.
Khatello e phahameng ea serurubele valve
Ha u khetha lisebelisoa tsa li-valve tsa serurubele tse nang le khatello e phahameng, ntle le ho nahana ka lintlha tsa kutu ea metsi a leoatle, khatello ea khatello ea thepa e lokela ho nkoa.Ha khatello ea ho sebetsa e le 69bar 'me khatello e phahameng ke ≥85bar (khatello e koalang ea pompo ea reverse osmosis e phahameng ea khatello), ka lebaka la khatello e phahameng ea morao, e le ho fokotsa Torque, valve ea serurubele se phahameng se nka sebopeho se habeli sa eccentric.Ha boholo bo ikhethileng ba valve ea serurubele e le ≤DN500, ho amoheloa ha seqha.Ha boholo bo ikhethileng ba valve ea serurubele e le ≥DN550, khokahano ea flange e amoheloa.Sehlopha sa khatello ke CI600, 'mele oa valve le poleiti ea serurubele li entsoe ka tšepe ea likarolo tse peli ASTMA995GR.4A.Hobane kutu ea valve e pepesehetse bohareng, kutu ea valve e entsoe ka ASTMA276UNS31803, 'me thepa ea setulo sa valve ke RPTFE.Sebopeho sa makhetlo a mabeli se eketsa coefficient ea ho hanyetsa sebakeng seo.Letlapa la serurubele le kutu ea li-valve li hloka hore lithapo li lokisoe, 'me litlhoko tse thibelang ho bola ha li-pin li tšoana le likarolo tse ling tsa phallo.
Hangata valve ea ho hlahloba e kenngoa sebakeng sa pompo ea metsi a leoatle ho thibela ho khutla ha metsi a leoatle le hamore ea metsi ho senya thepa.Hona joale, li-valve tsa ho hlahloba tse sebelisoang mererong ea ho tlosa letsoai metsing a leoatle li kenyelletsa li-valve tsa ho hlahloba serurubele tse koalang butle, tse nang le rabara ka ho feletseng.li-valve tsa ho hlahloba serurubele,li-valve tsa ho hlahloba sephaphatha se le sengle li-valve tse hlahlobang li-flap duplex steel wafer.
Belofo ea ho hlahloba serurubele e koalang butle
Ntho e ka sehloohong ea valve ea ho hlahloba serurubele e koalang butle ke tšepe ea ductile.Hamore ea metsi e koalang butle ea mochini kapa ea hydraulic e na le khanyetso e ntle ea hamore ea metsi mme e loketse tšebeliso ea khatello e tlase.Tšebeliso ea karolo ea metsi a sehlahisoa sa morero oa ho ntša letsoai metsing a leoatle.
Sephaphatha sa ho hlahloba sephaka sa mofuta oa serurubele se nang le rabara ka ho feletseng
Sephaphatha sa ho hlahloba serurubele se nang le rabara ka ho feletseng ke ntlafatso ea ho thibela ho bola ha valve ea ho hlahloba mofuta oa serurubele.'Mele oa valve le kutu li entsoe ka rabara ka botlalo,' me clack ea valve e ka etsoa ka tšepe e sa hloekang ea duplex kapa boronse ba nickel aluminium.Mofuta ona oa valve o behiloe sebakeng sa ho tsoa ha pompo ea metsi a leoatle a nang le khatello e tlase 'me e loketse ho kenngoa liphaepheng tse bophara bo boholo.Bophahamo ba lebitso la valve bo ka har'a mefuta ea DN200-1200.Hoa hlokahala ho ela hloko litlhoko tsa sebaka sa ho kenya valve nakong ea moralo.Ho kenngoa ka mokhoa o sa nepahalang oa valve ho tla etsa hore valve ea disc le selemo li sebetse holim'a kutu ea valve nako e telele, e senya tiiso ha e kopana pakeng tsa 'mele oa valve le kutu ea valve, e kenelle bohareng, ebe e etsa hore' mele oa valve o hole.
Sephahla se le seng sa ho hlahloba sephaphatha
Valve ea ho hlahloba lekhasi le le leng le na le sebopeho se bonolo le sebaka se senyenyane sa ho kenya, 'me se ka sebelisoa tlas'a khatello e tlaase kapa maemo a phahameng a khatello.Belofo e nka tšepe e sa hloekang ea duplex ka kakaretso, e nang le khanyetso e ntle ea ho bola ha metsi a leoatle, boima bo bobebe, e ka kenngoa ka holimo le ka holimo, 'me ho bonolo ho e sebelisa.Setsing sa ho ntša letsoai metsing a leoatle, ho sebelisoa valve e le 'ngoe ea valve ≤DN250 hangata.Ha boholo bo tloaelehileng ba valve bo le boholo ho feta DN250, hamore ea metsi e na le phello e hlakileng 'me lerata la liketso le lerata.Sephahla sa ho hlahloba sephara se seholo se nang le bophara bo boholo se sebelisoa haholo liphaepheng tsa khase.Sephahla se na le sekoti se se nang botlalo, boholo ba ho buloa ha sekhahla sa valve ke 45 °, tekanyo ea ho hanyetsa e eketseha, 'me matla a ho phalla a fokotseha.
Nako ea poso: Sep-30-2021