PR yeeb nkab (PPR yeeb nkab) yog random copolymer polypropylene yeeb nkab ua los ntawm hom III polypropylene.
PPR yeeb nkab siv cov cuab yeej siv hluav taws xob sib txuas ua ke thiab cov yam ntxwv ntawm tus nqi pheej yig, kev tiv thaiv hluav taws kub thiab rwb thaiv tsev (nrog rau txheej rwb thaiv tsev sab nrauv kom zoo dua rwb thaiv tsev), kev tiv thaiv corrosion, du sab hauv phab ntsa los tiv thaiv scaling, thiab tsis muaj cov pob qij txha sab hauv lossis sab nraud. Nws lub neej kev pabcuam tuaj yeem ncav cuag 50 xyoo.
Cov yeeb nkab no tsuas yog siv rau hauv kev tsim cov dej thiab cov dej ntws tawm, cov dej hauv nroog thiab cov neeg nyob deb nroog thiab cov dej ntws tawm, kev xa hluav taws xob hauv nroog, thiab cov dej xa mus rau kev lag luam, thiab tshwj xeeb tshaj yog tsim nyog rau kev tsim cov yeeb nkab hauv cov phab ntsa lossis qhov tob tob. Los ntawm 2015, kev lag luam sib koom ntawm cov kav dej yas tau xav tias yuav dhau 60%. Nws cov lus qhia tshwj xeeb tau qhia los ntawm cov yeeb nkab series S, nominal txheej kab uas hla, thiab phab ntsa thickness. Cov kev qhia tshwj xeeb suav nrog S5 thiab S4 series, sib xws rau cov kev ntsuas siab sib txawv. Cov neeg ua haujlwm tshaj lij yuav tsum ua cov cuab yeej tshwj xeeb thaum tsim kho kom ntseeg tau qhov zoo ntawm cov cua sov fusion txuas.
