Impilo yesevisi ithintwa yizo zonke lezi zici ezilandelayo: -usayizi, ingcindezi, izinga lokushisa, izinga lokuguquguquka kwengcindezi kanye nokuguquguquka kokushisa, uhlobo lwemidiya, imvamisa yokugibela amabhayisikili, isivinini semidiya nesivinini sokusebenza kwamavalvu.
Izihlalo ezilandelayo kanye nezinto zokufaka uphawu zingasetshenziswa kuma-valve ahlukahlukene njengebhola, ipulaki, uvemvane, isango, ama-valve okuhlola njll.
Izinto ezivame kakhulu zesihlalo se-valve yesihlalo sokufaka indandatho kuyoba
PTFE,RPTFE,PEEK,DEVLON/NYLON,PPL ngokuya ngengcindezi ehlukene,usayizi nezimo zokusebenza.
Izinto ezivame kakhulu ze-valve yebhola izinto ezithambile zokuvalwa kuzoba
kuzoba yi-BUNA-N, PTFE, RPTFE,VITON,TFM, njll.
Ukufaka kuhlu izici ezimbalwa ezibalulekile:
I-BUNA-N (HYCAR noma i-Nitrile)- Izinga lokushisa liphezulu -18 kuya ku-100 ℃.I-Buna-N iyi-polymer enenhloso evamile ekwazi ukumelana kahle nowoyela, amanzi, izincibilikisi noketshezi olunamanzi.Iphinde ibonise ukucindezelwa okuhle, ukumelana nemihuzuko, namandla aqinile. Le nto isebenza kahle kakhulu ezindaweni lapho kucutshungulwa khona izinto eziyisisekelo zikapharafini, ama-fatty acids, uwoyela, utshwala noma ama-glycerin, ngoba ayithintwa nhlobo.Akufanele isetshenziswe eduze nezinyibilikizi eziphakeme ze-polar (ama-acetone, ama-ketone), ama-hydrocarbon ane-chlorinated, i-ozone noma i-nitro hydrocarbons.I-Hycar imnyama ngombala futhi akufanele isetshenziswe lapho ukuguquguquka kungenakubekezelelwa.Kuthathwa njengokuqhathaniswa kwe-neoprene esikhundleni.Umehluko omkhulu: I-Buna-N inomkhawulo wokushisa ophakeme;I-neoprene imelana kakhulu namafutha.
I-EPDM- Isilinganiso sezinga lokushisa sisuka -29℃ siye ku-120℃.I-EPDM i-polyester elastomer eyenziwe nge-ethylene-propylene diene monomer.I-EPDM inokuhuzuka okuhle kanye nokumelana nokukhala futhi inikeza ukumelana kwamakhemikhali okuhle kakhulu kuma-acids ahlukahlukene nama-alkaline.Isengozini yokuhlaselwa ngamafutha futhi ayinconyelwe ukusetshenziswa okubandakanya uwoyela we-petroleum, ama-asidi aqinile, noma ama-alkaline aqinile.I-EPDM akufanele isetshenziswe emigqeni yomoya ecindezelwe.Inokuguga okuhle kwesimo sezulu kanye nokumelana ne-ozone..Ilungele ama-ketones nama-alcohols.
I-PTFE (TFE ye-Teflon)- I-PTFE iwukumelana kakhulu namakhemikhali kuwo wonke amapulasitiki.Iphinde ibe nezindawo ezinhle kakhulu zokushisisa ezishisayo nezikagesi.Izakhiwo zemishini ye-PTFE ziphansi uma kuqhathaniswa namanye amapulasitiki obunjiniyela, kodwa izakhiwo zawo zihlala kumazinga awusizo phezu kwebanga lokushisa elikhulu (-100℃ kuya ku-200℃, kuye ngohlobo nokusetshenziswa).
I-RTFE (I-TFE eqinisiwe/RPTFE)- Izinga lokushisa elijwayelekile lingu -60℃ kuya ku-232℃.I-RPTFE/RTFE ihlanganiswe nephesenti elikhethiwe le-fiber glass filler ukuze kuthuthukiswe amandla nokumelana nokuguga, ukugeleza okubandayo, nokungena ezihlalweni ezibunjiwe.Ukuqinisa kuvumela isicelo ngengcindezi ephakeme kanye nezinga lokushisa kune-TFE engagcwalisiwe.I-RTFE akufanele isetshenziswe ezinhlelweni ezihlasela ingilazi, njenge-hydrofluoric acid kanye ne-hot strong caustics.
IKHABONI IGCWELE I-TFE- Izinga lokushisa lisukela -50 ℃ kuya ku-260 ℃.I-TFE egcwele i-Carbon iyisihlalo esihle kakhulu sokufaka umusi kanye noketshezi olushisayo olusekelwe kuwoyela olusebenza kahle kakhulu.Izihlungi ezifaka i-graphite zinika amandla lesi sihlalo ukuthi sibe nempilo yomjikelezo engcono kunezinye izihlalo ze-TFE ezigcwele noma eziqinisiwe.Ukumelana namakhemikhali kulingana nezinye izihlalo ze-TFE.
I-TFM1600-TFM1600 inguqulo eguquliwe ye-PTFE egcina izakhiwo ezingavamile zamakhemikhali nokushisa kwe-PTFE, kodwa ine-viscosity encibilikayo ephansi kakhulu.Umphumela unciphisa ukugeleza okubandayo, ukuqina nokuqukethwe okuyize.Izindawo ezingaphezulu zibushelelezi futhi zinciphisa ama-torque.Ithiyori uhla lwesevisi ye-TFM1600 ngu -200℃ kuya ku-260℃.
TFM1600+20%GF-TFM1600+20% GF iyi-fiber glass reinforced version ye-TFM1600.Ngokufanayo ne-RTFE, kodwa ngenzuzo ye-TFM1600, inguqulo egcwele ingilazi inikeza ukumelana okukhulu nokuhuzuka futhi ithuthukisa ukuzinza ezingcindezini eziphezulu.
I-TFM4215- I-TFM4215 iwukuba ukhethi graphitized carbon egcwele TFM material.Ikhabhoni eyengeziwe ithuthukisa ukuzinza kwengcindezi ephakeme nezinhlanganisela lokushisa.
I-VITON(i-Fluorocarbon, i-FKM, noma i-FPM)- Isilinganiso sezinga lokushisa sisuka ku-29℃ siye ku-149℃.I-Fluorocarbon elastomer ngokwemvelo iyahambisana nenqwaba yamakhemikhali.Ngenxa yalokhu kuhambisana kwamakhemikhali okubanzi okuhlanganisa ukugxila okukhulu kanye nezinga lokushisa, i-fluorocarbon elastomer iye yamukelwa kabanzi njengempahla yokwakha izihlalo zamavalvu ommese. .Kuhle kakhulu kusevisi ye-hydrocarbon.Umbala umpunga (omnyama) noma ubomvu futhi ungasetshenziswa emigqeni yephepha elicishiwe.I-Fluorocarbon(VITON) ayifanele ukusetshenzwa ngesitimu noma amanzi ashisayo, nokho, ngendlela ye-o-ring ingamukeleka emigqeni ye-hydrocarbon exutshwe namanzi ashisayo ohlotsheni/umkhiqizo.Okwezinto zokuhlala i-FKM inganikeza ukumelana okwengeziwe kumkhiqizi wokubonana namanzi ashisayo.
I-PEEK-I-Polyetheretherketone-high pressure semi-rigid elastomer.Ifaneleka kakhulu ingcindezi ephezulu kanye nesevisi yezinga lokushisa.Futhi inikeza ukumelana nokugqwala okuhle kakhulu.Izinga lokushisa -56.6℃ ukuya ku-288℃.
I-DELRIN/POM-Izihlalo ezikhethekile ze-Delrin ezinikezwa ukucindezela okuphezulu kanye nesevisi yokushisa ephansi.Ingasetshenziswa emoyeni ocindezelayo, uwoyela kanye neminye imithombo yegesi kodwa ayifaneleki i-oxidizing eqinile.Isilinganiso sokushisa-50℃ kuya ku-100℃.
INYLON/DEVLON-Izihlalo zeNylon (polyamide) zinikezwa ukucindezela okuphezulu kanye nesevisi yokushisa ephansi.Zingasetshenziswa emoyeni wokushisa okuphezulu, uwoyela kanye neminye imithombo yegesi kodwa azifanelekeli i-oxidizing eqinile.Izinga lokushisa -100 ℃ kuya ku-150 ℃.I-Devlon inezici zokumuncwa kwamanzi angaphansi kwesikhathi eside, ukumelana nengcindezi eqinile kanye nokuhlehla komlilo.I-Devlon isetshenziswa kakhulu kumapayipi kawoyela nawegesi yemvelo phesheya kwesigaba se-trunnion ball valve 600~1500lbs.
Kuhlelwe ithimba Lezindaba :sales@ql-ballvalve.comwww.ql-ballvalve.com
Ifektri yase-China esohlwini oluphezulu ekhethekile ekukhiqizeni ama-valve ebhola!
Isikhathi sokuthumela: Oct-26-2022