Ifakwe i-fluorineivalvu yebhabhathaneluhlobo lwevalvu yelayini esetyenziswa kakhulu kwi-asidi kunye ne-alkali kunye nezinye izinto ezirhabaxa. Isetyenziswe kakhulu kwi-petroleum, iikhemikhali, amayeza, i-metallurgy, amandla ombane kunye namanye amashishini. Ngenxa yobunzima beempawu zayo zesakhiwo kunye nobunzima bezinto zelayini Ukwahluka, abasebenzisi badla ngokungazi ukuba baqale njani ukukhetha, eli nqaku liza kwazisa indlela yokukhetha ivalvu yebhabhathane ene-fluorine.
1. Ivalvu yebhabhathane ene-fluorine yilaphu leplastiki eligqunywe kumphezulu we-valve yentsimbi ephosiweyo okanye yentsimbi engagqwaliyo kunye neqela levalve yediski edibana nolwelo. Injongo yokugqwala. Ekubeni iplastiki idibana ne-medium, ubulukhuni bayo abulunganga, kwaye i-medium esetyenzisiweyo akufuneki ibe namaqhekeza aqinileyo, iikristale, ukungcola, njl.njl., ukuze kuthintelwe ivalvu ukuba ingagugi i-valve core, umaleko one-fluorine wesihlalo sevalve okanye umaleko we-fluorine ngexesha lokuvulwa nokuvalwa kwevalve. I-Fluorine iyavutha. Kwi-medium ene-particles ezinzima, iikristale kunye nokungcola, xa ukhetha, i-valve core kunye ne-valve seat inokukhethwa kwii-alloys ezimelana nokugqwala, ezifana ne-INCONEL, i-MONEL, i-Hastelloy, njl.njl.
2. Ubushushu besixhobo esisetyenziswa yivalvu yebhabhathane ene-fluorine: iplastiki ye-fluorine esetyenzisiweyo yi-F46 (FEP), kwaye ubushushu besixhobo esisetyenziswayo abunakudlula i-150°C (ubushushu besixhobo bunokufikelela kwi-150°C ngexesha elifutshane, kwaye ubushushu bufanele bulawulwe ngaphakathi kwe-120°C ixesha elide) Ngaphandle koko, umgca we-F46 weendawo zevalvu kulula ukuwuthambisa nokuwutshintsha, nto leyo ebangela ukuba ivalvu ivale ngokungenabungozi kwaye ivuza kakhulu. Ukuba ubushushu besixhobo esisetyenziswayo bungaphantsi kwe-180℃ ixesha elifutshane kwaye bungaphantsi kwe-150℃ ixesha elide, kungasetyenziswa enye i-fluoroplastic.
-PFA, kodwa i-PFA efakwe ii-fluoroplastics ibiza kakhulu kune-F46 efakwe ii-lined.
3. Umahluko phakathi koxinzelelo kunye noxinzelelo kufuneka ulawulwe ngaphakathi koluhlu oluvumelekileyo. Ukuba umahluko phakathi koxinzelelo kunye noxinzelelo mkhulu kakhulu, kulula ukubangela umonakalo kwisitywina ngexesha lokuvulwa nokuvalwa kwevalvu, nto leyo eya kuchaphazela ukusebenza kokutywina kwevalvu.
4. Iindidi ezininzi zemidiya erhabaxa yemizi-mveliso zihlala zingelulo uhlobo olunye lwe-asidi, i-alkali, kunye netyuwa. Oku kwenza kube nzima ukukhetha izinto ezifanelekileyo zokubopha, ezifuna ukhetho olupheleleyo lweeparameter ezifana nomlinganiselo wokwakheka kolwelo, uxinzelelo, ubushushu obuphakathi, ubungakanani besuntswana, kunye nesantya sokuhamba kolwelo.
5. Ivalvu yebhabhathane ene-fluorine kufuneka ikhethwe ngokuchanekileyo ngokwesantya sokuhamba esifunekayo (ixabiso le-Cv). Ixabiso le-CV levalvu yebhabhathane ene-fluorine lincinci kancinci kunelevalvu yebhabhathane eqhelekileyo ye-wafer kunye ne-flange butterfly. Xa ukhetha, ububanzi kunye nenqanaba lokuvula kwevalvu yebhabhathane ene-fluorine kufuneka kubalwe ngokwesantya sokuhamba esifunekayo (ixabiso le-Cv) kunye nezinye iiparameter zobugcisa. Ukuba ububanzi bevalvu bukhethwe bukhulu kakhulu, ngokuqinisekileyo kuya kwenza ivalvu ivuleke ixesha elide. Ukusebenza phantsi kweemeko ezincinci, kunye noxinzelelo lwe-medium, kuya kubangela ukuba i-valve core kunye ne-rod zichaphazeleke yi-medium ukuze i-valve ingcangcazele. I-valve core rod iya kwaphuka phantsi kwempembelelo ye-medium ixesha elide. Xa ukhetha iintlobo ezahlukeneyo ze-valve ezine-fluorine, abasebenzisi kufuneka baqonde kwaye baqonde iimeko zobugcisa zokusetyenziswa kangangoko, ukuze zikhethwe kwaye zisetyenziswe kakuhle, kwaye ubomi benkonzo yevalvu buphuculwe. Ukuba igqithe umda weemeko zobugcisa zokusetyenziswa, kufuneka icetyiswe kumenzi, kuxoxiswane ngayo, kwaye kwamkelwe amanyathelo afanelekileyo okuyisombulula. 6. Kuphephe uxinzelelo olubi. Ivalvu ene-fluorine kufuneka iphephe ukusetyenziswa koxinzelelo olubi kumbhobho. Ukuba kukho uxinzelelo olubi, umaleko one-fluorine kumngxuma wangaphakathi wevalvu uya kutsalwa (uvulwe) kwaye uqhekeke, nto leyo eya kubangela ukuba ivalvu ivuleke kwaye ivale ukungasebenzi kakuhle.