PPR (Polypropylene Random Copolymer) thiab PEX (Cross-linked Polyethylene) yog ob qho kev xaiv nrov rau cov kav dej, tab sis lawv muaj qee qhov sib txawv uas ua rau txhua qhov tsim nyog rau cov ntawv thov tshwj xeeb.
Nov yog qhov sib piv ntawm PPR thiab PEX:
PPR:
Qhov zoo:
- Kev kub siab dua: PPR cov kav dej tuaj yeem tswj tau qhov kub siab dua li cov kav dej PEX, ua rau lawv haum rau cov kav dej kub.
- Tshuaj tiv thaiv: PPR cov kav dej muaj zog tiv taus cov tshuaj tiv thaiv thiab xeb, ua kom cov dej huv huv.
- Durability: PPR cov kav dej muaj lub neej ntev thiab tuaj yeem tiv taus siab.
- Cov pob qij txha tsis muaj paug: PPR cov kav dej tau koom nrog siv cov txheej txheem sib xyaw ua kom sov, tsim kom muaj kev sib txuas zoo thiab tsis muaj paug.
PEX:
Qhov zoo:
- Flexibility: PEX cov kav dej yog hloov tau yooj yim thiab tuaj yeem khoov tau yooj yim, ua rau kev teeb tsa hauv qhov chaw nruj dua yooj yim dua.
- Kev tiv thaiv khov: PEX cov kav dej tuaj yeem nthuav dav thiab cog lus tsis muaj kev tawg, ua rau lawv haum rau huab cua txias.
- Kev tiv thaiv rau nplai thiab cov tshuaj chlorine: PEX kav dej tsis tshua muaj qhov tsim thiab cov tshuaj chlorine degradation, ua kom cov dej ntws zoo dua thiab zoo.
- Nqi-zoo: PEX kav feem ntau pheej yig dua PPR kav.
Hauv cov ntsiab lus, PPR cov kav dej zoo dua rau cov kav dej kub dej vim lawv qhov kub thiab txias tsis kam thiab tshuaj lom neeg. Ntawm qhov tod tes, PEX kav yog hloov tau yooj yim thiab khov-resistant, ua rau lawv haum rau huab cua txias. Kev xaiv ntawm PPR thiab PEX yog nyob ntawm cov kev cai tshwj xeeb ntawm cov kav dej.