Kuv nyiam tsim cov ntsiab lus pub dawb tag nrho cov lus qhia rau kuv cov nyeem, koj. Kuv tsis lees txais kev them nyiaj pab txhawb nqa, kuv lub tswv yim yog kuv tus kheej, tab sis yog tias koj pom kuv cov lus pom zoo pab tau thiab koj kawg yuav yam uas koj nyiam los ntawm ib qho ntawm kuv qhov txuas, Kuv tuaj yeem khwv tau nyiaj ua haujlwm yam tsis tau them nqi ntxiv rau koj. Xav paub ntau ntxiv
PEX stands rau cross-linked polyethylene. Nws tseem hu ua XPE lossis XLPE. PEX nthuav dav yog suav tias yog qhov kev xaiv niaj hnub thiab qib siab rau cov kav dej hauv tsev, hydronic radiant cua sov thiab cua txias, rwb thaiv tsev rau cov hluav taws xob hluav taws xob siab, kev thauj mus los, thiab kev thauj mus los ntawm cov dej phwj tuaj thiab slurries. Ntawm qhov tod tes, lub crimp yog ib qho khoom siv hluav taws xob uas tsis muaj hluav taws xob siv rau kev sib txuas cov hlua khi ua ke.
Hauv kab ntawv no peb yuav npog:
Kev nthuav qhia PEX
Koj xav tau cov kav dej zoo nkauj thiab huv si los ua PEX nthuav dav. Koj yuav tsum siv cov cuab yeej nthuav dav kom nthuav cov nplhaib raws li cov lus qhia los ntawm cov chaw tsim khoom. Kev saib xyuas kom raug thiab siv cov roj lubrication yuav pab koj kom muaj kev sib txuas zoo. Ntawm qhov tod tes, kev nthuav dav tsis raug tuaj yeem ua rau cov dej xau luv luv lub neej ntawm cov yeeb nkab thiab cov raj - yog li, ceev faj.Basic Working Mechanism ntawm PEX Expansion
PEX muaj cov yam ntxwv tshwj xeeb ntawm kev nthuav dav thiab kev cog lus. Ntawm qhov pib taw tes, qhov loj ntawm cov kav dej, cov kav dej, thiab lub tes tsho yog loj dua rau qhov yooj yim ntawm kev sib tsoo. Thaum lub tes tsho yas swb thiab koom rau ntawm qhov chaw sib txuas, PEX shrinks kom qhov haum yuav nruj.Yuav ua li cas rau nruab PEX Tubing?
Ua ntej tshaj plaws, koj yuav tsum txiav txim siab PEX ntev thiab tom qab ntawd txiav PEX raws li koj xav tau. Tom qab ntawd ntxiv lub nplhaib nthuav mus rau qhov kawg ntawm PEX. Tom qab ntawd lubricate lub taub hau expansion thiab tso tag nrho kaw lub taub hau rau hauv lub ntsis ntawm PEX. Los ntawm kev ua li ntawd, koj tuaj yeem xyuas kom muaj kev sib hloov thiab kev cog lus. Tom ntej no nias lub khawm thiab tuav nws kom txog thaum lub taub ntawm lub nplhaib hits tom qab ntawm lub khob hliav qab expander. Koj yuav pom tias lub taub hau hloov me ntsis nrog txhua qhov nthuav dav. Thaum lub nplhaib hauv qab tawm depress lub trigger thiab suav rau ib qho ntxiv 3-6 nthuav kom nws tsis thim rov qab mus rau qhov loj me sai. Thaum lub nplhaib hauv qab tawm, ua kom lub zog ua rau muaj kev ntxhov siab thiab suav ntxiv 3-6 kev nthuav dav. Ua qhov no yuav xyuas kom meej tias koj muaj sijhawm txaus los txuas koj qhov haum yam tsis muaj nws thim rov qab mus rau qhov loj heev. Koj yuav tsum kuaj qhov haum tom qab 24 teev. Koj yuav tsum paub txog qhov kub thiab txias ntawm qhov chaw ua haujlwm vim tias qhov kub thiab txias muaj qhov cuam tshuam tseem ceeb ntawm kev nthuav dav. Yog li, nws kuj cuam tshuam rau txoj kev haum.Pros ntawm PEX Expansion
Kev ua haujlwm siab, ua haujlwm ntev, ntev coil ntev, thiab lub zog sib zog nrog rau kev ua haujlwm zoo rau kev puas tsuaj rau kev puas tsuaj nrog rau corrosion, pitting, thiab scaling ua rau PEX nrov ntawm cov kav dej. Txij li thaum txuas PEX system yooj yim dua rau kev kawm nws kuj tseem nrov ntawm cov neeg tshiab. Piv rau tooj liab thiab tooj dag PEX yog qhov ruaj khov dua. Qhov yooj yim muab los ntawm PEX txo qis kev sib txuas mus txog ib nrab ntawm qee cov ntawv thov. Yog li, PEX tseem suav hais tias yog ib qho ntawm cov kav xa dej nrawm tshaj plaws uas muaj.Cons ntawm PEX Expansion
Leaching BPA thiab lwm yam tshuaj lom neeg, muaj kab mob, kab mob, thiab tshuaj tua kab mob, rhiab heev rau UV teeb, kub kub, thiab muaj peev xwm ntawm cov dej to yog lub ntsiab tsis zoo ntawm PEX expansion. Cia kuv tham me ntsis ntxiv txog txhua lub ntsiab lus. Muaj 3 hom PEX lub npe hu ua PEX A, PEX B, thiab PEX C. Hom A thiab C yog qhov ua rau muaj teeb meem leaching, tsuas yog hom B suav tias yog kev nyab xeeb. Txij li thaum PEX yog ua los ntawm cov khoom siv yas nws muaj feem ntau yuav raug puas los ntawm kab tsuag thiab tshuaj. Qee lub tuam txhab tswj xyuas kab tsuag tau hais tias nws muaj feem cuam tshuam rau kab tsuag. Feem ntau ntawm cov tuam txhab PEX qhia txog qhov tsawg kawg nkaus ntawm UV lub teeb raug thiab qee lub tuam txhab qhia txog qhov tsaus ntuj tag nrho. Nws yog ib qho tseem ceeb kom nco ntsoov thaum lub installation ntawm PEX. Txij li thaum PEX zoo li yuav raug puas tsuaj los ntawm qhov kub siab koj yuav tsum tsis txhob nruab PEX nyob rau hauv cov cheeb tsam uas nws yuav raug mus rau recessed lub teeb los yog dej rhaub. PEX tsis muaj cov tshuaj tua kab mob. Vim tias cov cuab yeej semi-permeable ntawm PEX kua tuaj yeem nkag mus rau hauv cov yeeb nkab thiab kev sib kis yuav tshwm sim.crimp
Crimp yog yooj yim npaum li PEX haum. Koj yuav nkag siab nws qhov yooj yim hauv kab lus hauv qab no. Wb mus.Basic Working Mechanism ntawm Crimp
Koj yuav tsum ntxig lub stripped kawg ntawm cov hlau mus rau hauv lub crimp connector, ces deform nws los ntawm crimping nyob ib ncig ntawm cov hlau nruj nreem. Koj xav tau lub davhlau ya nyob twg, ib lub xaim, thiab cov cuab yeej crimping (Crimping plier) los ua cov txheej txheem no. Txij li thaum crimp kev twb kev txuas tsis pub muaj qhov sib txawv ntawm cov strands ntawm cov hlau nws yog ib qho zoo heev los tiv thaiv xeb tsim los ntawm kev tiv thaiv kev nkag ntawm ob qho tib si oxygen thiab noo noo.Yuav Ua Li Cas Crimping Joint?
Thawj kauj ruam yog kev yuav khoom pex crimping cuab tam. Koj tuaj yeem yuav ib lub ratchet crimper lossis phau ntawv crimper nyob ntawm koj xaiv thiab pob nyiaj siv. Lub ratchet crimper yog yooj yim siv dua li phau ntawv crimper. Tom qab ntawd xaiv lub crimping tuag uas tsim nyog rau lub ntsuas hluav taws xob uas koj siv. Yog li, nws yog ib qho tseem ceeb los txiav txim siab qhov ntsuas ntawm cov hlau. Cov xaim liab muaj qhov ntsuas ntawm 22-16, xiav xaim muaj 16-14 ntsuas, thiab cov xaim daj muaj 12-10 ntsuas. Yog tias cov hlau tsis tuaj nrog cov xim rwb thaiv tsev koj tuaj yeem tshawb xyuas nws cov ntim kom paub qhov ntsuas. Tom qab ntawd stripe cov hlau nrog crimper thiab tshem tawm cov insulator. Tom qab stripping ob peb cov xov hlau ntswj cov ua ke thiab ntxig cov xov hlau sib tw rau hauv qhov txuas. Muab lub chim ntawm lub connector rau hauv qhov tsim nyog ntawm lub crimper nyem nws. Yog tias koj pom tias qhov kev sib txuas yog xoob koj tuaj yeem ua qhov sib koom ua ke ntawm qhov txuas thiab cov xaim. Thaum kawg, kaw qhov kev sib txuas nrog cov kab xev hluav taws xob.Qhov zoo ntawm Crimp
Crimp fittings yog pheej yig, yooj yim, thiab ceev. Txij li thaum crimp kev twb kev txuas tsim ib tug huab cua-nruj foob ntawm lub cable thiab connector nws yog tiv thaiv los ntawm ib puag ncig tej yam kev mob xws li ya raws, xuab zeb, plua plav, thiab av.Cons ntawm Crimp
Crimp haum muaj negligible con hais. Ib qho tuaj yeem yog tias koj xav tau cov cuab yeej tshwj xeeb rau txhua hom davhlau ya nyob twg uas yuav raug nqi ntau dua.Lo Lus Kawg
Crimp haum zoo li yooj yim rau kuv dua li PEX haum. Tsis tas li ntawd, qhov cons ntawm crimp haum yog tsawg dua PEX expansion haum. Nyob ntawm koj qhov tsim nyog thiab qhov xwm txheej koj tuaj yeem thov ob qho tib si los ua kev sib txuas. Qhov tseem ceeb tshaj plaws yog txiav txim siab kom raug nyob rau hauv ib qho xwm txheej. Yog tias koj muaj kev paub zoo txog ob qho tib si haum thiab koj kuj paub txog lawv qhov sib txawv ua qhov kev txiav txim siab yuav yooj yim dua rau koj.
Kuv yog Joost Nusselder, tus tsim ntawm Tools Doctor, cov ntsiab lus lag luam, thiab txiv. Kuv nyiam sim cov cuab yeej tshiab, thiab ua ke nrog kuv pab neeg kuv tau tsim cov ntawv blog tob txij li xyoo 2016 los pab cov neeg nyeem siab ncaj nrog cov cuab yeej & cov lus qhia ua khoom siv.