Fluorine-linedivelufa butterflyluhlobo lwevalvu yokwaleka edla ngokusetyenziswa kwiasidi kunye nealkali kunye nezinye imidiya ezonakalisayo.Isetyenziswe ngokubanzi kwi-petroleum, ikhemikhali, i-pharmaceutical, i-metallurgy, amandla ombane kunye namanye amashishini.Ngenxa yobunzima beempawu zayo zesakhiwo kunye nobunzima bezinto ze-lining Diversity, kaninzi abasebenzisi abazi ukuba baqalise njani ukukhetha, eli nqaku liza kwazisa indlela yokukhetha i-valve butterfly valve ene-fluorine.
1. Ivalve yebhabhathane ene-fluorine ngumaleko weplastiki esongelwe kumphezulu wentsimbi etyhidiweyo okanye umzimba wevalvu yensimbi engenastainless kunye neqela levalvu yediski edibana nolwelo.Injongo yomhlwa.Ekubeni iplastiki idibene ne-medium, ubulukhuni bayo bubuthathaka, kwaye ukusetyenziswa okuphakathi akufuneki kuqulathe amasuntswana aqinileyo, iikristale, ukungcola, njl., ukwenzela ukuthintela ivalve ukuba ingagugi i-valve core, i-fluorine-lined layer. yesitulo sevalve okanye umaleko wefluorine ngexesha lokuvula nokuvalwa kwevalve.I-fluorine iyancipha.Kwindawo ephakathi kunye neengqungquthela ezinzima, iikristali kunye nokungcola, xa ukhetha, i-valve core kunye nesihlalo se-valve sinokukhethwa kwii-alloys ezinganyangekiyo, njenge-INCONEL, i-MONEL, i-Hastelloy, njl.
2. Ubushushu bendawo esetyenziswa yivalve yebhabhathane enefluorine: iplastiki yefluorine esetyenzisiweyo yiF46 (FEP), kwaye iqondo lobushushu beliphakathi elisetyenzisiweyo alinakugqitha kwi-150°C (iqondo lobushushu eliphakathi lingafikelela kwi-150°C ixesha elifutshane, kwaye iqondo lokushisa kufuneka lilawulwe ngaphakathi kwe-120 ° C ixesha elide) Ngaphandle koko, i-F46 i-lining ye-valve ye-valve ilula ukuthambisa kunye nokukhubazeka, okubangela ukuba i-valve ivale ngokungafiyo kunye nokuvuza okukhulu.Ukuba ubushushu bendawo esetyenziswayo bungaphantsi kwe-180℃ ixesha elifutshane kwaye ngaphantsi kwe-150℃ ixesha elide, enye i-fluoroplastic ingasetyenziswa.
-PFA, kodwa i-PFA efakwe kwi-fluoroplastics ibiza kakhulu kune-F46 efakwe.
3. Uxinzelelo kunye nokwahlukana koxinzelelo kufuneka kulawulwe ngaphakathi koluhlu oluvumelekileyo.Ukuba uxinzelelo kunye nokwahlukana koxinzelelo kukhulu kakhulu, kulula ukubangela umonakalo kwisitywina ngexesha lokuvula nokuvalwa kwevalve, eya kuchaphazela ukusebenza kokutywinwa kwevalve.
4. Izitayile ezininzi zemithombo yeendaba ekrwadayo kaninzi ayilulo uhlobo olunye lweasidi, ialkali, kunye netyuwa.Oku kwenza kube nzima ukukhetha izinto ezifanelekileyo ze-lining, ezifuna ukhetho olubanzi lweeparameters ezifana nomlinganiselo we-liquid composition ratio, i-concentration, iqondo lokushisa eliphakathi, ubungakanani be-particle size, kunye nesantya sokuhamba kwe-medium.
5. Ivalve yebhabhathane ene-fluorine kufuneka ikhethwe ngokuchanekileyo ngokwereyithi yokuqukuqela efunekayo (ixabiso leCv).Ixabiso leCV yevalve yebhabhathane ene-fluorine lincinci kunelo levalufa yebhabhathane eqhelekileyo kunye nevalve yebhabhathane yeflange.Xa ukhetha, ububanzi kunye neqondo lokuvula i-valve ye-butterfly ene-fluorine kufuneka ibalwe ngokwezinga elifunekayo lokuhamba (ixabiso le-Cv) kunye nezinye iiparitha zobugcisa.Ukuba i-diameter ye-valve ikhethiweyo inkulu kakhulu, ngokuqinisekileyo iya kwenza i-valve ivule ixesha elide.Ukusebenza phantsi kweemeko ezincinci, kunye noxinzelelo lwe-medium, kuya kubangela ukuba i-valve core kunye nentonga ichaphazeleke phakathi ukuze ibangele ukuba i-valve ingcangcazele.I-valve core rod iya kwaphulwa phantsi kwempembelelo ye-medium ixesha elide.Xa ukhetha iintlobo ezahlukeneyo zeevalve ezine-fluorine, abasebenzisi kufuneka baqonde kwaye babambe iimeko zobuchwepheshe bokusetyenziswa kangangoko kunokwenzeka, ukwenzela ukuba zikhethwe kwaye zisetyenziswe kakuhle, kwaye ubomi benkonzo yevalve bunokuphuculwa.Kwimeko yokugqithisa ububanzi beemeko zobugcisa bokusetyenziswa, kufuneka kucetywe kumenzi, kuthethathethwane kunye, kwaye kwamkelwe amanyathelo ahambelanayo okusombulula.6. Kulumkele uxinzelelo olubi.Ivalve ene-fluorine kufuneka igweme ukusetyenziswa koxinzelelo olubi kumbhobho.Ukuba kukho uxinzelelo olubi, umaleko we-fluorine-lined kumgodi ongaphakathi wevalve uya kutsalwa ngaphandle (i-bulged) kwaye ikhutshwe, okuya kubangela ukuba ivalve ivuleke kwaye ivale ukungasebenzi kakuhle.