IFAN Hoobkas 30+ xyootsim kev pab txhawb xim / loj customization txhawb dawb qauv.Zoo siab txais tos los tham rau catalog thiab dawb kuaj.Qhov no yog peb FacebookLub Vev Xaib: www.facebook.com, Nyem rau saib IFAN cov khoom lag luam video.Piv nrog cov khoom Tomex, peb cov khoom IFAN los ntawm qhov zoo rau tus nqi yog qhov koj xaiv zoo tshaj plaws, txais tos mus yuav!
Taw qhia
Hla-txuas polyethylene (PEX) cov kav dej yog siv dav hauv cov kav dej hauv tsev thiab kev lag luam vim lawv qhov yooj yim, ua haujlwm ntev, thiab tsis kam mus rau tshuaj lom neeg thiab kub hloov pauv. Ib qho tseem ceeb ntawm PEX yeeb nkab tshuab yog xaiv cov ntaub ntawv tsim nyog, uas ua kom muaj kev sib txuas ntawm cov ntaub ntawv pov thawj thiab kev ntseeg tau ntev. Kab lus no delves rau hauv ntau yam ntaub ntawv foob siv nrog PEX kav dej, ntsuas lawv cov kev ua tau zoo, qhov zoo, thiab cov kev cov nyom.
Hom Cov Khoom Siv Hluav Taws Xob
1. EPDM (Ethylene Propylene Diene Monomer): EPDM yog cov roj hmab hluavtaws dav siv rau cov ntsaws ruaj ruaj thiab gaskets hauv cov kav dej. Nws yog lub npe hu rau nws zoo heev tiv thaiv tshav kub, ozone, thiab huab cua. EPDM cov ntsaws ruaj ruaj yog tsim rau ob qho tib si dej kub thiab dej txias, ua rau lawv xaiv rau PEX yeeb nkab tshuab.
2. NBR (Nitrile Butadiene Roj Hmab): NBR cov ntsaws ruaj ruaj, tseem hu ua Buna-N, muaj nuj nqis rau lawv tiv thaiv cov roj, roj, thiab lwm yam tshuaj. Lawv feem ntau yog siv rau hauv cov ntawv thov uas yuav raug rau cov khoom siv roj av. Hauv PEX yeeb nkab tshuab, NBR cov ntsaws ruaj ruaj muab kev ntseeg tau zoo nyob rau hauv ib puag ncig nrog kev sib txawv ntawm cov tshuaj lom neeg.
3. Silicone Rubber: Silicone seals muaj qhov tshwj xeeb yooj yooj yim thiab tuaj yeem tiv taus ntau yam kub. Lawv muaj txiaj ntsig tshwj xeeb hauv cov ntawv thov kub thiab ib puag ncig uas lwm cov ntaub ntawv foob tuaj yeem degrade. Silicone seals feem ntau siv hauv PEX cov kav dej rau kev siv dej kub.
4. PTFE (Polytetrafluoroethylene): PTFE, feem ntau hu ua Teflon, yog cov tshuaj tiv thaiv zoo heev thiab tuaj yeem ua haujlwm ntawm qhov kub thiab txias. PTFE cov ntsaws ruaj ruaj tsis yooj yim dua li cov roj hmab ntsaws ruaj ruaj tab sis muaj cov tshuaj tiv thaiv zoo tshaj thiab tsis muaj kev sib txhuam. Lawv haum rau PEX yeeb nkab tshuab raug rau cov tshuaj lom neeg.
Kev Ntsuam Xyuas Kev Ua Haujlwm
1. Temperature Resistance: Kev ua tau zoo ntawm cov ntaub ntawv foob hauv PEX yeeb nkab tshuab hnyav heev nyob ntawm lawv lub peev xwm los tiv thaiv qhov kub thiab txias. EPDM thiab silicone seals ua tau zoo nyob rau hauv ob qho tib si dej kub thiab txias daim ntaub ntawv, withstanding kub txog li 150 degree thiab 200 degree, feem. NBR cov ntsaws ruaj ruaj zoo dua rau cov ntawv thov uas qhov kub tsis tshaj 120 degree. PTFE cov ntsaws ruaj ruaj tuaj yeem tswj qhov kub txog li 260 degree, ua rau lawv zoo tagnrho rau cov mob hnyav.
2. Chemical Resistance: Tshuaj tiv thaiv yog ib qho tseem ceeb hauv kev xaiv cov khoom siv foob. EPDM cov ntsaws ruaj ruaj tiv thaiv ntau yam tshuaj tab sis tuaj yeem degrade thaum raug cov roj thiab roj. NBR cov ntsaws ruaj ruaj muaj kev tiv thaiv zoo dua rau cov roj thiab roj tab sis yuav tsis ua haujlwm zoo nrog qee cov kua qaub thiab alkalis. Silicone seals tiv taus ntau yam tshuaj tab sis tuaj yeem o thaum raug rau qee cov roj. PTFE seals muab qhov zoo tshaj plaws tag nrho cov tshuaj tiv thaiv, haum rau ntau yam khoom.
3. Flexibility thiab Compression Set: Flexibility yog qhov tseem ceeb rau kev tuav lub foob zoo nyob rau hauv kev sib txawv thiab kev txav. EPDM thiab silicone seals yog qhov hloov tau yooj yim, yoog tau zoo rau cov khoom sib txawv thiab tswj lawv cov duab nyob rau lub sijhawm. NBR cov ntsaws ruaj ruaj kuj hloov tau yooj yim tab sis yuav tawv nrog lub hnub nyoog. PTFE seals, thaum tsis tshua muaj kev hloov pauv, tsis txhob raug kev txom nyem los ntawm cov txheej txheem compression, tswj lawv cov khoom sib khi txawm tias nyob rau hauv lub siab tas li.
4. Durability thiab Longevity: Lub neej ntev ntawm cov ntaub ntawv foob hauv PEX yeeb nkab tshuab yog cuam tshuam los ntawm lawv cov kev tiv thaiv kev laus, huab cua, thiab kev siv tshuab. EPDM cov ntsaws ruaj ruaj pom muaj kev tiv thaiv kev laus zoo, kav ntev txog 15 xyoo lossis ntau dua hauv cov xwm txheej zoo. NBR cov ntsaws ruaj ruaj muaj lub neej luv luv, feem ntau nyob ib ncig ntawm 5-10 xyoo. Silicone seals tuaj yeem kav ntev dua 20 xyoo vim lawv ruaj khov nyob rau hauv ntau yam mob. PTFE cov ntsaws ruaj ruaj yog cov ruaj khov heev, nrog lub neej ntev tshaj 20 xyoo, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig kev nruj heev.
Qhov zoo thiab qhov nyuaj
1. EPDM Seals:
- Qhov zoo: Cov cua kub zoo heev thiab huab cua tsis kam, haum rau ntau qhov kub thiab txias, lub neej ntev.
- Cov kev sib tw: Tsis haum rau cov ntawv thov uas muaj roj thiab roj, muaj peev xwm degradation nyob rau hauv ib puag ncig hnyav tshuaj.
2. NBR Seals:
- Qhov zoo: Kev ua haujlwm siab rau roj, roj, thiab ntau yam tshuaj, cov khoom siv zoo.
- Cov kev sib tw: txwv qhov kub thiab txias, lub neej luv dua piv rau lwm cov ntaub ntawv, muaj peev xwm hardening lub sijhawm.
3. Silicone Seals:
- Qhov zoo: dav qhov kub thiab txias, zoo heev yooj, thiab durability, haum rau high-temperature daim ntaub ntawv.
- Cov kev sib tw: o thaum muaj qee cov roj, tus nqi siab dua piv rau EPDM thiab NBR cov ntsaws ruaj ruaj.
4. PTFE Foob:
- Qhov zoo: Cov tshuaj tiv thaiv zoo tshaj plaws, kev ua haujlwm siab kub, kev sib txhuam tsawg, thiab lub neej ntev.
- Cov kev sib tw: Tsawg yoog raws, tus nqi pib ntau dua, nyuaj rau kev teeb tsa vim kev nruj.
Kev coj ua zoo tshaj plaws rau kev xaiv cov khoom siv foob
1. Kev soj ntsuam cov kev xav tau ntawm daim ntawv thov: Thaum xaiv cov ntaub ntawv foob rau PEX cov kav dej, nws yog ib qho tseem ceeb uas yuav tau xav txog cov kev cai tshwj xeeb ntawm daim ntawv thov, suav nrog qhov kub thiab txias, tshuaj lom neeg raug, thiab kev ntxhov siab ntawm cov tshuab.
2. Kev Ntsuam Xyuas Kev Sib Raug Zoo: Ua qhov kev sib tw ntawm cov ntaub ntawv foob nrog cov tshuaj uas lawv yuav tiv tauj. Qhov no pab txhawm rau txheeb xyuas cov teeb meem degradation thiab ua kom muaj kev ntseeg tau ntev.
3. Cov txheej txheem kev teeb tsa: Cov txheej txheem kev teeb tsa kom raug yog qhov tseem ceeb rau kev tswj xyuas kev ruaj ntseg ntawm cov ntsaws ruaj ruaj. Xyuas kom meej tias cov ntsaws ruaj ruaj raug ntsia kom raug, tsis muaj kev ncab ntau dhau los yog compression, kom tsis txhob ua tsis tiav ntxov.
4. Kev Tu thiab Kev Tshuaj Xyuas Tsis tu ncua: Kev saib xyuas ib ntus thiab tshuaj xyuas cov ntsaws ruaj ruaj tuaj yeem pab txheeb xyuas qhov hnav thiab muaj peev xwm ua ntej lawv ua rau kev ua tsis tiav. Hloov cov ntsaws ruaj ruaj uas qhia txog kev degradation los yog hnav kom muaj kev ua haujlwm zoo.
Xaus
Kev xaiv cov ntaub ntawv foob rau PEX cov kav dej yog qhov tseem ceeb rau kev ua kom muaj kev sib txuas ntawm cov ntaub ntawv pov thawj thiab kev ntseeg tau ntev. EPDM, NBR, silicone, thiab PTFE seals txhua qhov tshwj xeeb zoo thiab cov nyom, ua rau lawv tsim nyog rau kev siv sib txawv. Los ntawm ua tib zoo tshuaj xyuas cov yam ntxwv ntawm kev ua tau zoo thiab cov kev xav tau ntawm daim ntawv thov, nws muaj peev xwm xaiv cov khoom foob uas tsim nyog tshaj plaws, ua kom pom kev ua haujlwm zoo thiab ua haujlwm ntev ntawm PEX cov kav dej. Ua raws li cov kev coj ua zoo tshaj plaws rau kev xaiv, kev teeb tsa, thiab kev saib xyuas ntxiv txhim khu kev ntseeg tau thiab siv tau ntev ntawm cov tshuab no, ua rau lawv xaiv qhov kev xaiv rau cov kav dej niaj hnub thiab kev lag luam.