PVC vs. Ordinary Yas: Nkag siab qhov txawv

Thaum nws los txog rau cov kav dej thiab kev tsim kho, cov ntsiab lus PVC, UPVC, thiab yas feem ntau siv sib hloov. Txawm li cas los xij, muaj qhov sib txawv ntawm cov ntaub ntawv no uas tseem ceeb kom nkag siab, tshwj xeeb tshaj yog thaum nws los txog rau valve fittings. Hauv tsab xov xwm no, peb yuav tshawb txog qhov sib txawv ntawm PVC thiab cov yas zoo tib yam, thiab cov kev sib txawv no cuam tshuam li cas rau kev xaiv valve fittings rau ntau yam kev siv.

PVC, uas sawv cev rau polyvinyl chloride, yog ib hom yas uas tau siv dav hauv kev tsim kho kev lag luam. Nws yog lub npe hu rau nws durability, tshuaj tsis kam, thiab versatility. UPVC, los yog unplasticized polyvinyl chloride, yog ib qho txawv ntawm PVC uas yog nruj dua thiab tiv taus tshuaj corrosion. Ob leeg PVC thiab UPVC feem ntau yog siv rau hauv kev tsim cov valve fittings vim lawv muaj peev xwm tiv taus siab thiab hnyav ib puag ncig.

Ntawm qhov tod tes, cov yas zoo tib yam, feem ntau hu ua "yas", yog ib lo lus dav dav uas suav nrog ntau hom hluavtaws lossis semi-synthetic organic compounds. Tsis zoo li PVC thiab UPVC, cov yas zoo tib yam tuaj yeem sib txawv ntawm nws cov khoom, nrog rau lub zog, yooj, thiab tsis kam mus rau tshuaj thiab kub.

Ib qho ntawm qhov sib txawv tseem ceeb ntawm PVC thiab cov yas zoo tib yam yog nyob rau hauv lawv cov muaj pes tsawg leeg. PVC yog ib qho thermoplastic, txhais tau tias nws tuaj yeem ua kom sov thiab molded rau hauv ntau yam duab, ua rau nws zoo tagnrho rau kev tsim cov valve fittings nrog cov qauv tsim. Hauv qhov sib piv, cov yas zoo tib yam tuaj yeem yog cov thermoplastic lossis thermosetting, nrog rau qhov tom kawg yog nruj dua thiab tsis tshua muaj pwm.

Lwm qhov sib txawv tseem ceeb yog cov tshuaj pleev xim ntawm PVC thiab cov yas zoo tib yam. PVC yog inherently nplaim taws resistant thiab muaj ib tug siab tsis kam mus rau cov tshuaj, ua rau nws haum rau daim ntaub ntawv uas raug rau corrosive tshuaj yog ib qho kev txhawj xeeb. Ordinary yas, nyob ntawm seb nws muaj pes tsawg leeg, yuav tsis muab tib theem ntawm cov tshuaj tiv thaiv thiab hluav taws kub retardancy li PVC.

Thaum nws los txog rau kev xaiv valve fittings, kev xaiv ntawm PVC thiab cov yas zoo tib yam yog nyob ntawm cov kev cai tshwj xeeb ntawm daim ntawv thov. Piv txwv li, hauv cov kav dej uas tsis kam tiv thaiv cov kua dej yog qhov tseem ceeb, PVC lossis UPVC valve fittings feem ntau nyiam vim lawv cov tshuaj tiv thaiv thiab kav ntev. Nyob rau hauv sib piv, zoo tib yam yas valve fittings tej zaum yuav haum rau tsawg-siab daim ntaub ntawv uas tus nqi thiab saj zawg zog yog lub hauv paus xav txog.

Hais txog kev cuam tshuam ib puag ncig, PVC thiab cov yas zoo tib yam kuj txawv. PVC paub tias yog qhov kev xaiv ruaj khov dua piv rau qee hom yas zoo tib yam, vim nws tuaj yeem siv dua thiab rov siv dua hauv ntau daim ntawv thov. Tsis tas li ntawd, PVC muaj lub neej ntev dua, txo qhov xav tau kev hloov pauv ntau zaus thiab txo cov khoom pov tseg.

Hauv kev xaus, thaum ob qho tib si PVC thiab cov yas zoo tib yam siv rau hauv kev tsim cov khoom siv valve, muaj qhov sib txawv tseem ceeb hauv lawv cov khoom, cov khoom, thiab tsim nyog rau ntau yam kev siv. Kev nkag siab txog cov kev sib txawv no yog qhov tseem ceeb rau kev txiav txim siab paub thaum xaiv valve fittings rau cov kav dej thiab kev tsim kho. Los ntawm kev txiav txim siab txog yam xws li tshuaj tiv thaiv, kev hloov pauv, thiab kev cuam tshuam ib puag ncig, cov kws tshaj lij tuaj yeem xaiv cov khoom tsim nyog tshaj plaws rau lawv cov kev xav tau tshwj xeeb, ua kom lub neej ntev thiab kev ntseeg siab ntawm lawv cov tshuab.