Cov yeeb nkab yog ib hom khoom siv ntau dua hauv kev kho kom zoo nkauj. Thaum kho kom zoo nkauj, nws yog ib qho tsim nyog yuav tsum nkag siab txog lub hom phiaj ntawm txhua lub yeeb nkab ua ntej, kom paub qhov twg nws tsim nyog siv. Yog li dab tsi yog qhov txawv ntawm PVC thiab PPR kav dej?
1. Cov khoom siv sib txawv
PPR kav dej yog ua los ntawm copolymerized polypropylene, thaum PVC yog ua los ntawm polyvinyl chloride. Nws yog qhov sib txawv ntawm cov khoom siv raw uas ua rau lawv qhov kev ua tau zoo sib txawv.
2. Cov xim sib txawv
PPR cov kav dej yog ci thiab tawv hauv qhov tsos, nrog cov kav dej ntawm ntau xim, thaum PVC kav tsuas yog mis nyuj dawb thiab muaj qhov zoo nkauj dua.
3. Txawv phab ntsa thickness
PPR muab faib ua 4 cov kav dej thiab 6 lub kav dej, nrog lub thickness ntawm 2.3 thiab 3.5 hli feem, thaum lub PVC specification yog 6 hli, lub thickness tsuas yog 2 hli, thiab lub thickness ntawm cov yeeb nkab nrog specification ntawm 8 mus rau 10 hli. yog hais txog 2.5 hli, nyob rau hauv cov ntaub ntawv ntawm tib txoj kab uas hla, qhov sib txawv ntawm cov yeeb nkab txoj kab uas hla kuj loj, feem ntau nws yuav pom tau ntawm qhov muag liab qab, nyob rau hauv tib specifications, lub thickness ntawm cov yeeb nkab PPR yuav thicker.
4. Cov nqi tsim khoom sib txawv
Vim yog cov khoom siv thiab phab ntsa tuab, cov nqi tsim khoom kuj txawv ntawm tus nqi muag. Tus nqi ntawm PPR yeeb nkab yog siab dua. Yog tias koj xav txo tus nqi, nws yog qhov zoo dua los xaiv cov yeeb nkab PVC.
5. Kev siv sib txawv
PPR yeeb nkab feem ntau yog siv los ua cov kav dej, nws tuaj yeem siv rau hauv cov kav dej kub thiab txias, thaum PVC yeeb nkab tsuas yog tsim rau cov kav dej txias, PPR yeeb nkab tuaj yeem ua haujlwm ntawm qhov kub ntawm 90 degrees, thiab nws yooj yim rau kev khiav lag luam. nruab, seb nws yog kub. Vuam Nws kuj tseem tsim nyog rau cov tshuab vuam siv hluav taws xob, thiab cov kav dej PVC zoo dua nyob rau hauv cov nqe lus ntawm corrosion kuj, tab sis tsis zoo nyob rau hauv kub kub kuj. Lawv tsis tuaj yeem txuas nrog thermally thaum lub sijhawm teeb tsa, thiab PVC kua nplaum feem ntau yog siv rau kev sib txuas.
