Ua ntej nkag mus rau qhov kev qhia tshwj xeeb, cia peb ua ntej txheeb xyuas seb txhua yam khoom siv yog dab tsi.PPR yog cov ntawv luv ntawm polypropylene random copolymer, thaum CPVC yog chlorinated polyvinyl chloride uas yog tsim los ntawm cov txheej txheem ntawm chlorination rau polyvinyl chloride.
PPR yog cov kav dej siv dav tshaj plaws hauv Europe, Russia, South America, Africa, South Asia, Tuam Tshoj thiab Middle East, thaumCPVCyog siv nyob rau hauv Is Nrias teb thiab Mexico.PPR zoo dua li CPVC tsis yog vim nws qhov kev lees paub dav dav, thiab nws muaj kev nyab xeeb rau cov dej haus.
Tam sim no, cia peb pab koj txiav txim siab zoo dua, nkag siab tias yog vim li cas CPVC kav dej tsis zoo thiab vim li cas koj thiaj li xav tauPPR cov kav dej.

Khoom noj khoom haus qib yas:
PPR cov kav dej tsis muaj cov tshuaj chlorine derivatives thiab muaj kev nyab xeeb rau tib neeg lub cev, thaum CPVC yeeb nkab qauv muaj cov tshuaj chlorine, uas tuaj yeem sib cais thiab yaj hauv dej hauv daim ntawv vinyl chloride thiab sib sau hauv tib neeg lub cev.
Qee zaum, leaching tau pom nyob rau hauv rooj plaub ntawm CPVC cov kav dej vim tias lawv muaj cov adhesion tsis muaj zog thiab xav tau cov kuab tshuaj lom neeg, thaum PPR cov kav dej tau sib koom ua ke los ntawm cov kav dej kub thiab tiv thaiv cov kav dej tuab thiab muaj zog adhesion.Kev sib xyaw ua ke ua rau txhua hom kev xau.Tebchaws Asmeskas tau ua ntau yam kev tshawb fawb txog kev leaching ntawm cov khoom phom sij xws li chloroform, tetrahydrofuran thiab acetate rau hauv dej haus los ntawmCPVC cov kav dej.

Cov kuab tshuaj siv hauv CPVC ua rau koj txoj kev noj qab haus huv muaj kev pheej hmoo:

California Pipeline Trade Commission yog lub luag haujlwm los tshuaj xyuas cov teebmeem kev noj qab haus huv ntawm cov kav dej thiab yog lub chaw ua dej num pov thawj hauv California, Tebchaws Asmeskas.Nws yeej ib txwm tau tawm tswv yim txog kev phom sij ntawm cov kuab tshuaj siv los txuas CPVC kav.Nws tau pom tias cov kuab tshuaj muaj cov ntsiab lus carcinogenic hauv cov tsiaj thiab suav tias yog qhov ua rau muaj kev phom sij rau tib neeg.Ntawm qhov tod tes, cov kav dej PPR tsis tas yuav muaj cov kuab tshuaj thiab txuas nrog cov tshuab kub-kua, yog li lawv tsis muaj tshuaj lom.

PPR pipeline yog cov lus teb zoo:
KPT PPR kav dej yog tsim los ntawm cov khoom siv raw khoom zoo, qib zaub mov, hloov tau yooj yim, muaj zog, thiab tuaj yeem tiv taus qhov kub ntawm -10 ° C txog 95 ° C.KPT PPR kav dej muaj lub neej ua haujlwm ntev heev, uas tuaj yeem siv tau ntau tshaj 50 xyoo.