Koj tab tom sim xaj cov li qub, tab sis ib tus neeg muag khoom hu lawv ua PVC thiab lwm tus hu lawv ua UPVC. Qhov kev tsis meej pem no ua rau koj txhawj xeeb tias koj tab tom piv cov khoom sib txawv lossis yuav cov khoom siv tsis raug.
Rau cov pob valve uas nruj, tsis muaj qhov sib txawv ntawm PVC thiab UPVC. Ob lo lus no hais txog tib yamcov khoom siv polyvinyl chloride uas tsis yog yas, uas muaj zog, tiv taus xeb, thiab zoo tagnrho rau cov tshuab dej.
Qhov no yog ib qho ntawm cov lus nug uas kuv tau txais ntau tshaj plaws, thiab nws ua rau muaj kev tsis meej pem tsis tsim nyog hauv cov saw hlau xa khoom. Tsis ntev los no kuv tau tham nrog Budi, tus thawj coj yuav khoom los ntawm lub tuam txhab faib khoom loj hauv Indonesia. Nws cov neeg yuav khoom tshiab tau daig, xav tias lawv xav tau ob hom valve sib txawv. Kuv piav qhia rau nws tias rau cov valve ruaj khov uas peb tsim ntawm Pntek, thiab rau feem ntau ntawm kev lag luam, cov npe siv sib pauv. Kev nkag siab txog vim li cas yuav ua rau koj ntseeg siab rau koj cov kev txiav txim siab yuav khoom.
Puas muaj qhov sib txawv ntawm PVC thiab UPVC?
Koj pom ob lub npe luv sib txawv thiab koj yuav xav tias lawv sawv cev rau ob yam khoom sib txawv. Qhov kev tsis ntseeg no tuaj yeem ua rau koj cov haujlwm qeeb thaum koj sim txheeb xyuas cov lus qhia kom raug.
Yeej tsis yog. Hauv cov yeeb nkab thiab cov kav dej tawv, PVC thiab UPVC zoo ib yam. Tus "U" hauv UPVC sawv cev rau "unplasticized," uas twb muaj tseeb rau txhua lub kav dej PVC tawv.
Qhov kev tsis meej pem los ntawm keeb kwm ntawm cov yas. Polyvinyl chloride (PVC) yog cov khoom siv tseem ceeb. Yuav kom nws yoog tau rau cov khoom xws li cov kav dej vaj lossis cov xov hluav taws xob rwb thaiv tsev, cov chaw tsim khoom ntxiv cov tshuaj hu ua plasticizers. Txhawm rau kom paub qhov txawv ntawm daim ntawv qub, tawv los ntawm cov qauv yoog tau, lo lus "unplasticized" lossis "UPVC" tau tshwm sim. Txawm li cas los xij, rau cov ntawv thov xws li cov dej siab, koj yuav tsis siv cov qauv yoog tau. Txhua cov kav dej PVC tawv, cov khoom siv, thiab cov pob valve, los ntawm lawv qhov xwm txheej, tsis yog plasticized. Yog li, thaum qee lub tuam txhab sau lawv cov khoom "UPVC" kom meej dua, thiab lwm tus tsuas yog siv cov "PVC" uas siv ntau dua, lawv xa mus rau tib yam khoom siv muaj zog, tawv. Ntawm Pntek, peb tsuas yog hu lawvPVC pob valvevim nws yog lo lus feem ntau, tab sis lawv txhua tus yog technically UPVC.
Cov PVC pob valve puas zoo?
Koj pom tias PVC yog yas thiab pheej yig dua li hlau. Qhov no ua rau koj tsis ntseeg nws qhov zoo thiab xav paub seb nws puas ruaj khov txaus rau koj cov kev siv mus sij hawm ntev.
Yog lawm, cov pob valve PVC zoo heev rau lawv lub hom phiaj. Lawv tiv taus xeb thiab xeb, tsis hnyav, thiab muab lub neej ua haujlwm ntev hauv kev siv dej txias, feem ntau ua tau zoo dua li cov hlau valve.
Lawv tus nqi tsis yog tsuas yog nyob rau hauv lawv tus nqi qis dua xwb; nws yog nyob rau hauv lawv cov kev ua tau zoo hauv cov chaw tshwj xeeb. Cov hlau li qub, zoo li tooj dag lossis hlau, yuav xeb lossis xeb dhau sijhawm, tshwj xeeb tshaj yog nyob rau hauv cov kab ke nrog dej kho, dej ntsev, lossis qee yam tshuaj lom neeg. Qhov xeb no tuaj yeem ua rau lub valve ntes, ua rau nws tsis tuaj yeem tig thaum muaj xwm txheej ceev. PVC tsis tuaj yeem xeb. Nws yog cov tshuaj lom neeg inert rau feem ntau cov dej ntxiv, ntsev, thiab cov kua qaub me me. Qhov no yog vim li cas Budi cov neeg siv khoom hauv kev lag luam aquaculture ntug dej hiav txwv hauv Indonesia tsuas yog siv cov li qub PVC. Cov dej ntsev yuav rhuav tshem cov li qub hlau hauv ob peb xyoos xwb, tab sis peb cov li qub PVC txuas ntxiv ua haujlwm zoo rau ib xyoo caum lossis ntau dua. Rau txhua daim ntawv thov hauv qab 60 ° C (140 ° F), ibPVC pob valvetsis yog tsuas yog ib qho kev xaiv "pheej yig dua" xwb; nws feem ntau yog qhov kev xaiv txhim khu kev qha dua thiab siv tau ntev dua vim tias nws yuav tsis raug xeb.
Lub pob valve zoo tshaj plaws yog dab tsi?
Koj xav yuav lub valve "zoo tshaj plaws" kom ntseeg tau tias koj lub kaw lus ntseeg tau. Tab sis muaj ntau yam khoom siv muaj, kev xaiv qhov zoo tshaj plaws zoo li nyuaj thiab muaj kev pheej hmoo.
Tsis muaj ib lub pob valve uas "zoo tshaj plaws" rau txhua txoj haujlwm. Lub valve zoo tshaj plaws yog lub uas cov khoom siv thiab kev tsim qauv sib haum xeeb rau koj lub cev qhov kub, siab, thiab ib puag ncig tshuaj lom neeg.
"Zoo Tshaj Plaws" yeej ib txwm muaj feem cuam tshuam rau daim ntawv thov. Kev xaiv qhov tsis yog zoo li siv lub tsheb kis las los thauj cov xuab zeb - nws yog lub cuab yeej tsis yog rau txoj haujlwm. Lub valve hlau tsis xeb zoo heev rau qhov kub thiab txias siab, tab sis nws kim heev rau lub pas dej ua ke, qhov twg lub valve PVC zoo dua vim nwstsis kam rau chlorineKuv ib txwm coj kuv cov neeg koom tes xav txog cov xwm txheej tshwj xeeb ntawm lawv qhov project. Lub qhov dej PVC yog tus yeej rau cov kab ke dej txias vim nws tiv taus xeb thiab tus nqi. Rau dej kub, koj yuav tsum nce mus rauCPVCRau cov roj lossis roj siab, tooj dag yog ib qho kev xaiv ib txwm muaj thiab txhim khu kev qha. Rau cov ntawv thov qib zaub mov lossis cov tshuaj lom neeg uas muaj zog heev, feem ntau xav tau cov hlau tsis xeb. Qhov kev xaiv "zoo tshaj plaws" tiag tiag yog qhov uas muab kev nyab xeeb thiab lub neej ntev rau tus nqi qis tshaj plaws.
Cov Khoom Siv Pob Valve
| Khoom siv | Zoo Tshaj Plaws Rau | Kev Txwv Kub | Qhov Zoo Tshaj Plaws |
|---|---|---|---|
| PVC | Dej Txias, Pas Dej Ua Si, Kev Siv Dej, Cov Chaw Khaws Dej | ~60°C (140°F) | Yuav tsis corrode, pheej yig. |
| CPVC | Dej Kub thiab Dej Txias, Kev Lag Luam Me Me | ~90°C (200°F) | Kev tiv taus cua sov siab dua li PVC. |
| Tooj dag | Kev Kho Dej, Roj Av, Kev Siv Siab | ~120°C (250°F) | Siv tau ntev, zoo rau cov foob siab. |
| Hlau tsis xeb | Qib Khoom Noj, Tshuaj, Kub Siab / Siab | >200°C (400°F) | Lub zog zoo tshaj plaws thiab kev tiv thaiv tshuaj lom neeg. |
Qhov txawv ntawm PVC U thiab UPVC yog dab tsi?
Thaum koj xav tias koj nkag siab txog PVC thiab UPVC, koj pom "PVC-U" ntawm daim ntawv pov thawj kev siv tshuab. Lo lus tshiab no ntxiv ib txheej kev tsis meej pem, ua rau koj xav tias koj nkag siab yuam kev lawm.
Tsis muaj qhov sib txawv kiag li. PVC-U tsuas yog lwm txoj hauv kev sau uPVC xwb. Tus "-U" kuj sawv cev rau unplasticized. Nws yog ib qho kev cai raus npe uas feem ntau pom hauv cov qauv European lossis thoob ntiaj teb (xws li DIN lossis ISO).
Xav txog nws zoo li hais tias "100 duas las" piv rau "100 duas las." Lawv yog cov lus sib txawv rau tib yam. Hauv ntiaj teb ntawm cov yas, thaj chaw sib txawv tau tsim cov txoj hauv kev sib txawv me ntsis los sau cov khoom siv no. Hauv North America, "PVC" yog lo lus dav dav rau cov yeeb nkab khov kho, thiab "UPVC" qee zaum siv rau kev meej. Hauv Tebchaws Europe thiab raws li cov qauv thoob ntiaj teb, "PVC-U" yog cov lus tsim kho kom raug cai los qhia "tsis muaj yas." Rau tus neeg yuav khoom zoo li Budi, qhov no yog cov ntaub ntawv tseem ceeb rau nws pab neeg. Thaum lawv pom kev sib tw European uas teev cov li qub PVC-U, lawv paub nrog kev ntseeg siab tias peb cov li qub PVC txheem ua tau raws li qhov yuav tsum tau ua tiav zoo kawg nkaus. Nws txhua yam los rau tib yam khoom siv: ib qho polymer vinyl khov kho, muaj zog, tsis muaj yas uas zoo meej rau cov li qub pob. Tsis txhob ntes tau hauv cov ntawv; tsom mus rau cov khoom siv thiab cov qauv kev ua tau zoo.
Xaus lus
PVC, UPVC, thiab PVC-U txhua tus yog hais txog tib yam khoom siv uas tsis yog yas uas zoo tagnrho rau cov kav dej txias. Qhov sib txawv ntawm lub npe tsuas yog cov kev cai hauv cheeb tsam lossis keeb kwm xwb.
Lub sijhawm tshaj tawm: Lub Xya Hli-31-2025
