Nyuam qhuav pib lub xyoo no, peb pib muag ntau yamdub hlau kav thiab fittingshauv peb lub khw online. Txij thaum ntawd los, peb tau kawm tias ntau tus neeg yuav khoom paub tsawg heev txog cov khoom zoo no. Hauv luv luv, cov kav hlau dub yog ib qho kev xaiv zoo tshaj plaws rau cov kav dej uas twb muaj lawm. Nws muaj zog, yooj yim rau nruab, corrosion resistant thiab tuav ib tug airtight foob. Cov txheej dub pab tiv thaiv corrosion.

Cov yeeb nkab dub siv los siv rau cov kav dej, tab sis txij li thaum lub sij hawm tuaj txog ntawm tooj liab, CPVC thiab PEX nws tau ua nrov dua rau cov roj. Nws yog ib qho kev xaiv zoo rau kev txhawb nqa rau ob qho laj thawj. 1) Nws ruaj khov, 2) Nws yooj yim rau muab tso ua ke. Ib yam li PVC, dub malleable hlau siv cov kav dej thiab fittings uas tau sib xyaw ua ke nrog cov khoom sib txuas, tsis yog vuam. Txawm hais tias nws lub npe, cov kav hlau dub tau ua los ntawm qib qis "tsawg carbon steel" compound. Qhov no ua rau nws zoo dua corrosion dua li cov kav hlau cam khwb cia.

Cov yam ntxwv ntawm cov kav hlau dub
Txij li cov ntawv tshaj tawm no yog txhua yam hais txog cov kav hlau dub thiab cov fittings, peb yuav dhia mus rau qee yam ntawm nws cov yam ntxwv thiab cov yam ntxwv. Nws yog ib qho tseem ceeb kom paub txog thaum nws los txog rau koj lub tsev cov kav dej.

Dub Hlau Pipeline Siab txwv
"Dub hlau" yog ib lo lus uas feem ntau yog hais txog ib hom dub coated steel, tab sis muaj ntau ntau hom dub hlau yeeb nkab. Qhov teeb meem tseem ceeb ntawm qhov no yog tias tag nrho cov kav hlau dub ua raws li cov qauv tsawg heev. Txawm li cas los xij, lawv yog ob qho tib si tsim los tswj cov pa roj carbon monoxide thiab propane gases, uas feem ntau khaws cia qis dua 60psi. Yog tias tau teeb tsa kom raug, cov yeeb nkab hlau dub yuav tsum tau ua raws li cov qauv los lav qhov ntsuas siab ntawm yam tsawg 150psi.

Cov hlau dub muaj zog dua li cov yeeb nkab yas vim nws yog ua los ntawm cov hlau. Qhov no yog qhov tseem ceeb vim tias cov pa xau tuaj yeem ua rau tuag taus. Thaum muaj av qeeg lossis hluav taws kub, qhov kev siv zog ntxiv no tuaj yeem ua rau cov pa roj carbon monoxide tuaj yeem xau thoob plaws hauv tsev.

Dub hlau yeeb nkab kub qib
Dub malleable hlau kav kuj muaj zog thaum nws los txog rau qhov ntsuas kub. Thaum lub melting point ntawm cov kav hlau dub tuaj yeem tshaj 1000F (538C), teflon daim kab xev tuav cov pob qij txha tuaj yeem pib poob ntawm 500F (260C). Thaum lub sealing daim kab xev tsis ua hauj lwm, lub zog ntawm cov yeeb nkab tsis muaj teeb meem vim hais tias cov roj yuav pib los ntawm kev sib koom tes.

Hmoov zoo, teflon daim kab xev muaj zog txaus los tiv thaiv txhua qhov kub ntawm huab cua. Thaum muaj hluav taws kub, qhov tseem ceeb ntawm kev ua tsis tiav tshwm sim. Tab sis nyob rau hauv rooj plaub no, cov neeg nyob hauv ib lub tsev lossis kev lag luam yuav tsum tau nyob sab nraud thaum lub roj teeb tsis ua haujlwm.

Yuav ua li cas rau nruabDub Hlau Yeeb
Ib qho ntawm qhov zoo tshaj plaws ntawm cov kav hlau dub yog nws txoj kev ua tau zoo. Qhov no txhais tau tias nws tuaj yeem threaded effortlessly.Threaded yeeb nkabyog ib qho yooj yim siv vim nws tuaj yeem ntsia tau rau hauv qhov haum yam tsis tas yuav tsum tau welded. Raws li nrog rau txhua qhov system nrog threaded kev sib txuas, cov kav hlau dub thiab fittings yuav tsum tau Teflon sealing daim kab xev los tsim ib lub foob airtight. Hmoov zoo, sealing daim kab xev thiab duct xim yog pheej yig thiab yooj yim rau siv!

Kev sib sau ua ke cov roj av dub yuav tsum muaj kev txawj me ntsis thiab kev npaj ntau. Qee zaum cov kav dej yog pre-threaded rau qhov ntev, tab sis qee zaus lawv yuav tsum tau txiav thiab threaded manually. Ua li no, koj yuav tsum tuav ib tug ntev ntawm cov yeeb nkab nyob rau hauv ib lub vise, txiav lawv mus rau ntev nrog ib tug yeeb nkab cutter, thiab ces siv ib tug yeeb nkab threader los tsim ib tug xov nyob rau hauv lub kawg. Siv ntau cov xov txiav roj kom tsis txhob ua rau cov xov puas.

Thaum txuas cov yeeb nkab ntev, qee hom sealant yuav tsum tau siv los sau qhov khoob ntawm cov xov. Ob txoj kev ntawm xov sealant yog xov kab xev thiab yeeb nkab xim.
Teflon daim kab xev xov kab xev xov xov sealing daim kab xev

Yuav siv txoj hlua khi li cas
Xov kab xev (feem ntau hu ua "teflon daim kab xev" lossis "PTFE daim kab xev") yog ib txoj hauv kev yooj yim los kaw cov pob qij txha yam tsis muaj teeb meem. Daim ntawv thov siv sijhawm li ob peb feeb xwb. Qhwv xov kab xev nyob ib ncig ntawm cov xov sab nraud ntawm cov yeeb nkab. Yog tias koj tab tom saib qhov kawg ntawm cov yeeb nkab, qhwv nws clockwise. Yog tias koj qhwv nws counterclockwise, txoj cai ntawm screwing ntawm lub haum yuav thawb daim kab xev tawm ntawm qhov chaw.

qhwv daim kab xev nyob ib ncig ntawm tus txiv neej threads 3 los yog 4 zaug, ces ntsia hlau lawv ua ke kom nruj li sai tau los ntawm tes. Siv cov yeeb nkab ciaj ntswj (los yog ib txheej ntawm cov yeeb nkab wrenches) tsawg kawg ib zaug ntxiv. Thaum cov kav dej thiab fittings tau nruj nruj, lawv yuav tsum muaj peev xwm tiv taus yam tsawg 150psi.
khaws cov kab xev

Yuav siv cov yeeb nkab li cas
Cov yeeb nkab xim (tseem hu ua "kev sib koom ua ke") yog cov kua nplaum uas nkag mus ntawm cov xov kom tuav lub foob kaw ntom nti. Cov yeeb nkab pleev xim zoo heev vim nws yeej tsis dries tag nrho, cia cov pob qij txha unscrewed rau kev kho thiab kho. Ib qho downside yog yuav ntxhov npaum li cas, tab sis feem ntau cov xim pleev xim yog tuab dhau los ua dej ntau dhau.