PVC dej yeeb nkab yog polyvinyl chloride kua dej yeeb nkab. Cov kav dej zoo li no yog cov kav dej ntau hauv peb lub neej. Cov neeg tau txais kev pom zoo ntau dua rau nws cov lus qhia tshwj xeeb thaum xaiv cov kav dej PVC. Hauv qab no yog cov lus qhia txog kev qhia tshwj xeeb ntawm cov kav dej PVC.
1. Raws li ib qho ntawm cov khoom siv yeeb nkab feem ntau siv, muaj ntau lub teb chaws cov qauv uas cov kav dej PVC yuav tsum tau ua raws. Raws li cov kev cai muaj feem xyuam, cov specifications ntawm PVC cov kav dej yog lub nominal txheej txoj kab uas hla, thiab cov yeeb nkab fittings yog lub nominal puab txoj kab uas hla, uas yog sawv cev los ntawm "φ". Qhov tshwj xeeb ntawm cov kav dej PVC feem ntau yog los ntawm φ20 txog φ225, thiab cov chav nyob yog millimeters.
2. Txawm hais tias muaj ntau qhov tshwj xeeb ntawm cov kav dej PVC, PVC cov kav dej ntawm ntau qhov tshwj xeeb xws li φ125, φ140, φ180, thiab φ225 tsis tshua muaj nyob hauv Suav teb. Tus neeg yuav khoom yuav tsum xaiv ob peb cov kav dej PVC raws li qhov ua tau hauv cov lus qhia saum toj no thaum lub sijhawm yuav khoom lossis tsim qauv engineering.
3. Txawm hais tias qhov loj ntawm cov kav dej PVC, qhov ntev ntawm cov yeeb nkab feem ntau yog 4 meters lossis 6 meters, yog li tsis tas yuav xav txog qhov ntev ntawm cov kav dej PVC ntau dhau thaum lub sijhawm yuav khoom; Tsis tas li ntawd, cov phab ntsa tuab ntawm cov kav dej PVC yog nruj heev. Kev nruj, tab sis feem ntau qhov loj ntawm cov kav dej PVC yog proportional rau phab ntsa thickness, uas yog, qhov loj ntawm PVC cov kav dej, qhov loj dua phab ntsa thickness.
4. Yog tias nws tsuas yog siv rau hauv ib puag ncig hauv tsev, nws yog ib qho tsim nyog yuav tsum xaiv cov kav dej PVC nrog cov lus qhia me me kom tau raws li qhov xav tau. Yog hais tias nws yog siv nyob rau hauv lub khw loj, kev lag luam kev lag luam thiab lwm qhov chaw, nws yog ib qho tsim nyog yuav tau xaiv cov kav dej PVC nrog cov lus qhia loj dua.
Vim tias nws muaj ntau yam zoo, cov kav dej PVC yog qhov tseem ceeb heev, yog li nws yog cov khoom lag luam uas ntau tus neeg siv khoom nyiam xaiv. Ntsib nrog PVC cov kav dej nrog ntau qhov tshwj xeeb, cov neeg siv khoom yuav tsis muaj teeb meem hauv kev yuav khoom. Txhawm rau zam tag nrho Yog tias cov khoom yuav khoom tsis tuaj yeem ua tau raws li koj tus kheej xav tau, koj yuav tsum nkag siab tag nrho cov ntaub ntawv tseem ceeb.
