Taw qhia rau PEX Cov Khoom Siv Khoom
PEX (cross-linked polyethylene) piping tau dhau los ua qhov kev xaiv nrov hauv cov kav dej hauv tsev thiab kev lag luam vim nws qhov yooj yim, ua haujlwm ntev, thiab ua haujlwm rau ntau yam. Ib qho tseem ceeb ntawm nws qhov kev thov rov hais dua yog kev saib xyuas kev nyab xeeb thiab kev noj qab haus huv cuam tshuam nrog nws cov khoom siv. Kev nkag siab seb PEX piping muaj cov khoom puas tsuaj yog qhov tseem ceeb rau kev ua kom ntseeg tau tias nws muaj kev nyab xeeb rau kev siv hauv cov dej haus. Kab lus no tshawb txog cov ntaub ntawv muaj pes tsawg leeg ntawm PEX piping thiab tshuaj xyuas cov kev txhawj xeeb txog kev noj qab haus huv cuam tshuam nrog nws siv.
Kev sib xyaw ntawm PEX Piping
PEX piping yog tsim los ntawm polyethylene, ib hom yas polymer uas dhau los ua cov txheej txheem sib txuas los txhim kho nws cov khoom. Txoj kev sib txuas no, uas cuam tshuam nrog kev sib txuas ntawm polyethylene molecules, txhim kho cov yeeb nkab lub zog, hloov tau yooj yim, thiab tsis kam mus rau qhov kub thiab txias thiab tshuaj lom neeg. Cov khoom siv hauv paus, polyethylene, feem ntau suav tias muaj kev nyab xeeb thiab tsis muaj cov khoom phom sij xws li txhuas lossis hlau hnyav. Txawm li cas los xij, kev nyab xeeb ntawm PEX kuj yog nyob ntawm cov khoom siv ntxiv thaum tsim khoom, uas ua tib zoo tswj kom tsis txhob muaj teeb meem.
Kev tswj hwm tus qauv thiab kev xeem
Txhawm rau kom muaj kev nyab xeeb ntawm PEX piping, nws yuav tsum ua kom tau raws li ntau yam kev tswj hwm thiab ua raws li kev ntsuas nruj. Hauv Tebchaws Meskas, PEX cov kav dej yog raws li cov qauv tsim los ntawm cov koom haum xws li NSF International thiab American Society for Testing and Materials (ASTM). Cov qauv no xav kom cov ntaub ntawv PEX raug sim rau qhov muaj peev xwm leaching ntawm cov khoom tsis zoo rau hauv dej haus. Piv txwv li, NSF / ANSI Standard 61 tshwj xeeb hais txog kev nyab xeeb ntawm cov khoom siv hauv cov dej haus, kom ntseeg tau tias cov kav dej PEX tsis tso cov tshuaj uas tuaj yeem ua rau muaj kev phom sij rau kev noj qab haus huv. Kev ua raws li cov qauv no muab kev lees paub tias PEX tsis muaj cov kab mob phem.
Muaj peev xwm txhawj xeeb thiab txo qis
Thaum PEX piping feem ntau suav tias muaj kev nyab xeeb, muaj qee qhov kev txhawj xeeb txog qhov muaj peev xwm rau cov tshuaj leaching. Thaum pib siv lossis hauv cov tshuab uas muaj qhov kub thiab txias, cov khoom me me ntawm cov yeeb nkab sab hauv tuaj yeem txav mus rau hauv dej. Cov tshuaj no feem ntau zoo qis dua qhov kev txwv kev nyab xeeb, tab sis kev txhawj xeeb tseem nyob rau lub sijhawm ntev. Txhawm rau txo cov kev pheej hmoo no, nws raug nquahu kom yaug cov tshuab PEX tshiab kom huv si ua ntej siv thiab saib xyuas cov dej tsis tu ncua. Cov neeg tsim khoom kuj tseem txhim kho PEX cov qauv tsim kom txo tau cov teeb meem leaching tsawg.
Sib piv PEX rau Lwm Cov Khoom Siv
Thaum piv rau cov kav dej ib txwm muaj xws li PVC, tooj liab, lossis txhuas, PEX feem ntau zoo dua rau kev noj qab haus huv thiab kev nyab xeeb. Piv txwv li, cov kav dej PVC tuaj yeem tso cov tshuaj phem xws li phthalates yog tias tsis tsim nyog. Cov kav dej tooj liab tuaj yeem pab txhawb kom nce qib ntawm tooj liab hauv dej, tshwj xeeb tshaj yog nyob rau hauv acidic tej yam kev mob. PEX qhov kev tiv thaiv corrosion thiab tsis muaj cov hlau lead lossis cov hlau hnyav ua rau nws muaj kev nyab xeeb rau ntau daim ntawv thov cov kav dej. Txawm li cas los xij, kev nyab xeeb ntawm cov khoom siv thaum kawg yog nyob ntawm kev teeb tsa kom raug thiab ua raws li cov qauv kev cai.
Xaus
Hauv kev xaus, PEX piping yog tsim los kom muaj kev nyab xeeb thiab tsis muaj tshuaj lom. Nws cov khoom siv hauv paus, polyethylene, thiab cov txheej txheem sib txuas uas siv hauv nws cov khoom tsim kom ntseeg tau tias nws tsis muaj cov kab mob txaus ntshai xws li txhuas lossis hlau hnyav. Cov qauv kev tswj hwm thiab kev sim ntxiv kom paub meej tias kev nyab xeeb ntawm PEX rau cov dej siv tau. Txawm hais tias muaj kev txhawj xeeb me me txog cov tshuaj leaching muaj nyob, cov no feem ntau tswj tau zoo los ntawm kev teeb tsa thiab kev saib xyuas kom zoo. Zuag qhia tag nrho, PEX piping sawv cev rau kev nyab xeeb thiab kev xaiv zoo rau cov kav dej niaj hnub xav tau.