Tsim nyob rau hauv Tebchaws Europe xyoo 1968 thiab tau tshaj tawm rau Tebchaws Meskas thaum nruab nrab -80s, PEX piping tau dhau los ua ib qho ntawm cov khoom siv feem ntau hauv cov kav dej hauv tsev nyob hauv 15 xyoo dhau los.
Thaum koj pom PEX-A, PEX-B, thiab PEX-C, koj yuav xav tsis thoob tias qhov txawv ntawm lawv thiab qhov twg koj yuav tsum xaiv. Hauv qab no, peb txheeb xyuas yog vim li cas muaj peb PEXs, yam ntxwv lawv qhia, thiab lawv txawv li cas.
Yuav ua li cas PEX piping zoo ib yam
Raws li peb txhua tus paub,PEXstands rau cross-linked polyethylene. Tsab ntawv tom kawg tsuas yog qhia txog hom kev tsim khoom siv los sib txuas cov polyethylene, tsis yog qib PEX.
Yog tias koj saib International Plumbing Code, koj tsuas yog pom cov ntawv xa mus rau PEX, tsis yog ntau hom. Qhov no yog vim, feem ntau, tag nrho cov kav dej PEX zoo sib xws.
1. Lawv txhua tus yuav tsum ua raws li cov qauv kev ua tau zoo. Muaj qee qhov yuav tsum tau siv rau txhua qhov PEX yeeb nkab siv hauv kev lag luam thiab cov kav dej hauv tsev. Lwm tus siv rau PEX siv hauv ib qho system lossis daim ntawv thov. Qee qhov piv txwv suav nrog:
ASTM F876, uas yog tus qauv kev ua haujlwm rauPEX cev.
NSF / ANSI / CAN 61 thaum nruab rau hauv cov dej xa dej.
Daim ntawv thov cov qauv xws li UL 1821 rau PEX yeeb nkab rau ntau lub hom phiaj tua hluav taws.
2. Lawv zoo ib yam li qhov loj me. PEX qhov ntev tsis txawv ntawm PEX-A, -B, thiab -C, raws li tau hais hauv ASTM F876. Lawv yog cov Copper Tube Size, lossis CTS.
3. Lawv txhua tus muaj cov cai tsim khoom. Tag nrho cov yeeb nkab PEX tau muab rau ib qho ntawm cov lej no raws li nws cov tshuaj chlorine tsis kam, UV tsis kam, thiab hydrostatic tsim hauv paus (HDB) qib, lossis kev ntsuas siab.
Yog li dab tsi yog qhov txawv ntawm PEX hom?
Qhov tseeb yog, tsis ntau. Ntxiv dua thiab, qhov sib txawv tseem ceeb yog txoj kev tsim khoom, uas yog txoj kev muab A, B, lossis C rau PEX.
1.PEX A yog tsim los siv peroxide lossis Engel txoj kev.
2. PEX B yog tsim los ntawm silane los yog cov txheej txheem kho dej noo. Qhov no yog hom PEX piping feem ntau.
3. PEX C yog tsim los siv electron irradiation los yog txias crosslinking txoj kev.
Tej zaum yuav muaj qhov sib txawv me ntsis hauv qhov ntom ntom, qhov tawg siab, thiab khoov radii ntawm PEX yeeb nkab hom, tab sis lawv tsis tsim nyog. Txawm li cas los xij, tsis muaj teeb meem dab tsi PEX yeeb nkab koj siv, muaj ob peb qhov sib txawv tseem ceeb kom paub txog.
Hais txog IFAN PEX Yeeb Nkab
Tsis muaj txoj cai nyuaj-thiab-ceev rau cov yeeb nkab PEX - A, B lossis C - koj yuav tsum siv. Muab tag nrho cov zoo sib xws thiab yooj yim txheeb xyuas qhov sib txawv, koj qhov kev xaiv yuav ua raws li koj txoj kev sib raug zoo thiab kev paub nrog ib qho PEX tubing, koj cov peev nyiaj thiab cov yeeb nkab muaj nyob hauv koj cheeb tsam. Thov hu rau IFAN yog tias tsim nyog.