1. PPR cov kav dej ntawm lub khw tam sim no feem ntau muaj ntau xim ntawm dawb, grey thiab ntsuab, uas yog tshwm sim los ntawm qhov sib txawv ntawm cov khoom raw PPR hais. Txawm hais tias qee qhov kav xa dej dawb, qee qhov kav xa dej yog grey, thiab qee qhov kav xa dej ntsuab, nws tsis sawv cev rau theem zoo ntawm cov khoom. Nrog kev txhim kho thev naus laus zis, xim tsis yog qhov qauv rau kev pom qhov zoo tshaj ntawm PPR leeg. Txawm hais tias lub raj siv tau zoo lossis tsis zoo, nws zoo li tias qhov teeb meem daws tsis tau. Yog tias koj kov nws, cov coarse co feem ntau yuav sib xyaw nrog lwm cov impurities.
2." tsw" ;: seb puas muaj ntxhiab tsw. Cov khoom tseem ceeb ntawm PPR yeeb nkab yog polypropylene. Cov kav dej zoo tsis muaj ntxhiab, thiab cov pluag tsis muaj cov ntxhiab coj txawv txawv. Nws yog yuav hais tias lawv tau sib xyaw nrog polyethylene hloov polypropylene.
3." Pinch": PPR lub raj muaj qhov nyuaj ua haujlwm, nws tuaj yeem raug hno rau hauv lub raj tshuaj tsis haum ntawm yuav, nws yog qhov tseeb tsis yog PPR lub raj.
4." Smashing" ;: Tus nqi ntawm PPR zoo muaj cov roj" zoo" Nws tsis yog qhov zoo PPR raj uas nws yooj yim heev rau luag. Tab sis muaj zog hardness tsis txhais tau hais tias zoo elasticity, vim hais tias qee cov tuam ntxhab tsis zoo nce qhov hardness ntawm cov kav dej los ntawm kev muab cov calcium calciumate ntau dhau thiab lwm cov impurities. Xws li cov kav dej tau yooj yim thim xim tom qab lub sijhawm ntev, thiab txhua tus neeg yuav muaj kev ua xyem xyav.
5." Hlawv" ;: Kuv hlawv thiab hlawv, nws yog intuitive thiab pab tau. PPR cov kav dej sib xyaw nrog cov yeeb yaj kiab uas siv rov ua dua thiab lwm cov tsis huv hauv cov ntaub ntawv nyoos yuav tawm cov pa luam yeeb dub thiab muaj cov ntxhiab tsw; tom qab cov khoom siv zoo hlawv, nws yuav tsis tawm cov pa luam yeeb dub thiab tsw ntxhiab tsw. Tom qab hlawv, kua kub yaj tseem muaj kev nyiam huv heev.
6. Nrog cov hlau fittings, cov ntaub ntawv lo lo ntxhuav yog ntxaib tau muab faib rau cov pawg hauv qab no: hlau, zinc alloy, qis dua tooj liab, thiab lwm yam Cov ntaub ntawv no yooj yim rau oxidized hauv dej, yooj yim xeb, thiab muaj cov cim qis thiab yooj yim tawg. thiab dej ntws. Feem ntau ntawm cov yeeb nkab PPR cov tuam txhab tsis tsim cov khoom siv tooj liab, tab sis tso siab rau cov khoom siv tooj liab los tsim lawv. Qhov zoo yog inevitably tawm ntawm kev tswjhwm. Thaum muas, koj tseem yuav tsum saib rau lub chaw tsim khoom' s tshwj xeeb tooj liab.