Tau ntsib nrog 2-nti PVC txuas? Cov txheej txheem tsis raug tuaj yeem ua rau muaj kev poob siab thiab qhov project tsis ua haujlwm. Tau txais txoj cai sib koom los ntawm qhov pib yog qhov tseem ceeb rau kev ruaj ntseg, kav ntev.
Txhawm rau txuas ob 2-nti PVC kav, siv 2-nti PVC coupling. Ntxuav thiab prime ob yeeb nkab kawg thiab sab hauv ntawm coupling, ces siv PVC cement. Nthuav thawb cov yeeb nkab rau hauv qhov sib txuas nrog lub quarter tig thiab tuav rau 30 vib nas this.
Kuv nco qab tham nrog Budi, tus thawj tswj kev yuav khoom rau ib qho ntawm peb cov neeg koom tes loj tshaj plaws hauv Indonesia. Nws hu kuv vim tias tus neeg cog lus tshiab uas nws muab tau muaj teeb meem loj nrog
leaky pob qij txhantawm ib qhov dej num loj. Tus neeg cog lus tau cog lus tias nws tau ua raws li cov kauj ruam, tab sis kev sib txuas tsuas yog tsis tuav hauv siab. Thaum peb taug kev los ntawm nws cov txheej txheem, peb pom qhov ploj lawm: nws tsis muab cov yeeb nkab rau ntawdzaum kawg quarter-tig twistraws li nws thawb nws mus rau hauv qhov haum. Nws yog qhov nthuav dav me me, tab sis qhov kev sib tw yog qhov ua kom cov kuab tshuaj cement kis tau tusyees, tsim kom tiav, muaj zog weld. Nws yog ib zaj lus qhia zoo rau nws pab neeg txog seb cov txheej txheem tseem ceeb npaum li cas. Txawm tias muaj cov ntaub ntawv zoo tshaj plaws, "yuav ua li cas" yog txhua yam.
Yuav ua li cas txuas ob qhov sib txawv ntawm PVC?
Yuav tsum koom nrog cov yeeb nkab loj rau ib qho me me? Qhov tsis ncaj ncees lawm tsim ib lub raj mis los yog qhov tsis muaj zog. Kev siv tus adapter kom raug yog qhov tseem ceeb rau kev hloov pauv hloov tau yooj yim.
Txhawm rau txuas qhov sib txawv ntawm cov yeeb nkab PVC, koj yuav tsum siv lub reducer bushing lossis reducer coupling. Lub bushing haum rau hauv tus qauv sib txuas, thaum lub reducer txuas ncaj qha txuas ob qhov sib txawv ntawm cov yeeb nkab. Ob leeg xav tau tus qauv primer thiab cement txoj kev.
Kev xaiv ntawm areducer bushingthiab areducer couplingnyob ntawm koj qhov xwm txheej tshwj xeeb. Lub reducer coupling yog ib qho haum uas muaj qhov qhib loj dua ntawm ib kawg thiab ib qho me me ntawm lwm qhov. Nws yog ib qho huv, ib qho kev daws teeb meem rau kev sib txuas, hais tias, 2-nti yeeb nkab ncaj qha mus rau 1.5-nti yeeb nkab. Ntawm qhov tod tes, areducer bushingyog tsim los kom haum rau hauv tus qauv loj dua. Piv txwv li, yog tias koj muaj 2-nti txuas, koj tuaj yeem ntxig "2-nti los ntawm 1.5-nti" bushing rau hauv ib kawg. Qhov no hloov koj tus qauv 2-nti coupling rau hauv lub reducer. Qhov no yog ib qho yooj yim heev yog tias koj twb muaj cov qauv fittings ntawm tes thiab tsuas yog xav tau hloov ib qho kev sib txuas. Kuv ib txwm qhia Budi kom npaj ob qho tib si, raws li cov neeg cog lus txaus siab muaj kev xaiv ntawm qhov chaw ua haujlwm.
Reducer Bushing vs. Reducer Coupling
| Hom haum | Kev piav qhia | Qhov zoo tshaj plaws siv Case |
|---|---|---|
| Reducer Coupling | Ib qho haum nrog ob qhov sib txawv ntawm qhov kawg. | Thaum koj xav tau ncaj qha, ib qho kev sib txuas ntawm ob lub kav dej. |
| Reducer Bushing | Ib qho ntxig uas haum rau hauv tus qauv sib txuas loj dua. | Thaum koj xav tau hloov kho qhov haum uas twb muaj lawm lossis xav tau txoj hauv kev modular. |
Yuav koom nrog ob PVC li cas?
Koj muaj cov kav dej thiab fittings, tab sis koj tsis ntseeg siab ntawm cov txheej txheem gluing. Ib qho kev sib koom ua ke tuaj yeem ua rau koj txoj haujlwm nyuaj. Paub txog cov txheej txheem welding kom zoo yog tsis sib tham.
Kev koom nrog ob lub kav dej PVC muaj cov txheej txheem tshuaj hu ua hnyav vuam. Koj xav tau lub tshuab ntxhua khaub ncaws / primer los npaj cov yas thiab PVC cement kom yaj thiab fuse qhov chaw ua ke. Cov kauj ruam tseem ceeb yog: txiav, deburr, huv si, prime, cement, thiab txuas nrog twist.
Cov txheej txheem ntawm kev koom nrog PVC yog qhov tseeb, tab sis nws tsis yooj yim. Nws yog hais txog kev ua raws txhua kauj ruam. Ua ntej, txiav koj cov yeeb nkab kom square li sai tau siv PVC cutter. Kev txiav kom huv si xyuas kom cov yeeb nkab hauv qab tawm zoo kawg nkaus hauv qhov haum. Tom ntej no,deburr sab hauv thiab sab nraud ntawm qhov txiav ntug. Ib qho me me burrs tuaj yeem tshem tawm cov cement thiab rhuav tshem lub foob. Tom qab ua kom qhuav nrawm los xyuas koj qhov ntsuas, nws yog lub sijhawm rau qhov tseem ceeb. Thov lubntshav primermus rau sab nraud ntawm cov yeeb nkab thiab sab hauv ntawm qhov haum. Primer tsis yog ib qho tshuaj ntxuav xwb; nws pib muag cov yas. Tsis txhob hla nws. Tam sim ntawd ua raws li nyias, txawm tias txheej ntawm PVC cement ntawm ob qhov chaw. Thawb cov yeeb nkab rau hauv qhov haum nrog lub quarter-tig twist kom txog thaum nws nres. Tuav nws ruaj khov rau 30 vib nas this kom tiv thaiv cov yeeb nkab tsis txhob thawb rov qab.
Kwv yees PVC Cement Kho Sijhawm
Lub sijhawm kho yog qhov tseem ceeb. Tsis txhob sim qhov sib koom ua ke nrog lub siab kom txog thaum cov cement yog tag nrho hardened. Lub sijhawm no txawv nrog qhov kub thiab txias.
| Qhov kub thiab txias | Pib Lub Sijhawm Teem Sijhawm (Handle) | Lub Sijhawm Kho Mob Tag Nrho (Pressure) |
|---|---|---|
| 60 ° F - 100 ° F (15 ° C - 38 ° C) | 10-15 feeb | 1-2 teev |
| 40 ° F - 60 ° F (4 ° C - 15 ° C) | 20-30 feeb | 4-8 teev |
| Hauv qab 40 ° F (4 ° C) | Siv cov cement tshwj xeeb rau huab cua txias. | Yam tsawg kawg 24 teev |
Yuav ua li cas txuas ob lub kav dej ntawm qhov sib txawv?
Kev sib txuas cov kav dej ntawm qhov sib txawv zoo li tsis yooj yim. Ib qho kev sib txuas tsis zoo tuaj yeem ua rau xau lossis txwv tsis pub ntws. Kev siv txoj cai haum ua rau kev hloov pauv yooj yim, muaj zog, thiab ua haujlwm zoo rau txhua qhov system.
Txhawm rau txuas cov kav dej ntawm cov kab sib txawv, siv cov kev hloov pauv tshwj xeeb zoo li lub reducer coupling. Rau cov ntaub ntawv sib txawv, xws li PVC rau tooj liab, koj xav tau ib lub adapter tshwj xeeb, xws li PVC txiv neej adapter txuas nrog poj niam threaded tooj liab haum.
Kev sib txuas cov kav dej yog txhua yam hais txog muaj txoj cai "choj" nruab nrab ntawm lawv. Yog tias koj nyob nrog cov khoom siv tib yam, xws li PVC, qhov sib txuas sib txuas yog qhov txuas ncaj nraim ntawm ob qhov sib txawv. Tab sis yuav ua li cas yog tias koj xav tau txuas PVC rau cov yeeb nkab hlau? Qhov ntawd yog thaum koj xav tau ntau hom choj:
threaded adapters. Koj yuav hnyav-weld PVC adapter nrog txiv neej lossis poj niam xov rau koj cov yeeb nkab PVC. Qhov no muab rau koj ib tug threaded kawg uas koj yuav txuas mus rau ib tug coj hlau haum. Nws yog cov lus thoob ntiaj teb rau kev sib txuas cov khoom sib txawv ntawm cov yeeb nkab. Qhov tseem ceeb yog tsis txhob sim ua kua nplaum PVC ncaj qha rau hlau. Nws yuav tsis ua haujlwm. Kev sib txuas threaded yog tib txoj kev ruaj ntseg. Thaum ua cov kev sib txuas no, ib txwm sivPTFE daim kab xev (Teflon daim kab xev)ntawm cov txiv neej threads los pab kaw qhov sib koom ua ke thiab tiv thaiv kom tsis txhob xau.
Common Transition Fitting Solutions
| Hom kev sib txuas | Yuav tsum tau haum | Kev txiav txim siab tseem ceeb |
|---|---|---|
| PVC rau PVC (qhov sib txawv) | Reducer Coupling / Bushing | Siv primer thiab cement rau qhov hnyav weld. |
| PVC rau tooj liab / hlau | PVC Txiv neej / Poj Niam Adapter + Hlau Poj Niam / Txiv Neej Adapter | Siv PTFE daim kab xev ntawm threads. Tsis txhob overtighten yas. |
| PVC to PEX | PVC Txiv neej Adapter + PEX Crimp / Clamp Adapter | Xyuas kom cov threaded adapters tau tshaj (NPT tus qauv). |
Yuav ua li cas loj coupling rau 2 nti PVC?
Koj muaj 2-nti PVC yeeb nkab, tab sis qhov twg haum yog qhov loj? Yuav qhov tsis ncaj ncees lawm nkim sijhawm thiab nyiaj txiag. Lub rooj sib tham sizing rau PVC fittings yog yooj yim thaum koj paub txoj cai.
Rau 2-nti PVC yeeb nkab, koj xav tau 2-nti PVC coupling. PVC fittings muaj npe raws li cov yeeb nkab nominal loj lawv txuas rau. Cov yeeb nkab sab nraud yog loj dua 2 ntiv tes, tab sis koj ib txwm phim "2 nti" yeeb nkab rau "2 nti" haum.
Qhov no yog ib qho ntawm feem ntau cov ntsiab lus tsis meej pem kuv pab Budi cov neeg muag khoom tshiab nkag siab. Lawv muaj cov neeg siv khoom ntsuas sab nraud ntawm lawv cov yeeb nkab 2-nti, pom tias nws ze li ntawm 2.4 ntiv tes, thiab tom qab ntawd nrhiav qhov haum kom haum rau qhov ntsuas ntawd. Nws yog qhov yuam kev, tab sis nws tsis yog li cas PVC sizing ua haujlwm. Daim ntawv lo "2-inch" yog lub npe lag luam, hu uaNominal Pipe Loj (NPS). Nws yog tus qauv uas ua kom txhua tus neeg tsim khoom 2-nti yeeb nkab yuav haum rau txhua tus neeg tsim khoom 2-nti haum. Raws li cov chaw tsim khoom, peb tsim peb cov fittings rau cov meejASTM cov qauv. Qhov no lav kev sib cuam tshuam thiab ua rau tej yam yooj yim rau cov neeg siv kawg: tsuas yog phim cov nominal loj. Tsis txhob nqa tus kav mus rau lub khw muag khoom kho vajtse; tsuas yog nrhiav tus lej luam tawm ntawm cov yeeb nkab thiab yuav qhov haum nrog tib tus lej.
Nominal Pipe Size vs. Qhov tseeb Outer Diameter
| Nominal Pipe Loj (NPS) | Qhov tseeb Outer Diameter (Approx.) |
|---|---|
| 1/2 nti | 0, 840 ib |
| 1 nti | 1.315 Nws |
| 1-1/2 nti | 1.900 Nws |
| 2 nti | 2, 375 po |
Xaus
Kev sib txuas 2-nti PVC yog ib qho yooj yim nrog 2-nti coupling thiab qhov hnyav vuam zoo. Rau qhov ntau thiab tsawg los yog cov ntaub ntawv, ib txwm siv qhov raug reducer haum lossis adapter rau kev ua haujlwm tsis zoo.
Lub sij hawm xa tuaj: Plaub Hlis-07-2025
