HDPE yog lub npe ntawm cov txhuv polyethylene. Cov khoom tsim muaj xws li cov kav dej, cov khoom cua thiab cov yeeb nkab sib fittings. Lawv tuaj yeem siv dav dav hauv teb xws li dej hauv tsev thiab sab nrauv thiab kua dej, tsim dej thiab fiav, roj kav thiab cov kav dej phwj. Cov khoom siv yas thev naus laus zis muaj peev xwm tshwj xeeb xws li kev tiv thaiv tshav kub, kev tiv thaiv kev ua haujlwm, kev ua haujlwm siab, kev ua haujlwm siab, kev ua haujlwm tsis zoo, thiab kev sib haum xeeb. Tag nrho cov kev lag luam muaj peev xwm ua tau raws li cov cai ntawm thoob ntiaj teb thiab lub teb chaws. HDPE txhaj yeeb nkab fittings tsuas muaj cov nram qab no cov yam ntxwv:
(1) Corrosion tsis kam. HDPE yeeb nkab fittings yog ua los ntawm cov khoom siv inert thiab muaj corrosion corrosion rau electrochemical corrosion xws li fais fab tam sim no, ntsev hauv cov av, kua qaub thiab dej pa, thiab yuav siv tsis muaj kev kho los tiv thaiv corrosion.
(2) Lub neej ntev. Raws li foreign laboratories, qhov kev pab cuam ntawm HDPE yeeb nkab fittings ntev dua 50 xyoo, thiab tus nqi qis dua ntau dua cov kav hlau.
(3) Kev tsim kho yooj yim thiab kev caij tsheb yooj yim. Lub me me hla HDPE yeeb nkab tau nkag mus rau ob peb lub kaum ntawm metres los yog ib puas metres ntev, txo cov interface. Qhov nyhav ntawm HDPE yeeb nkab ntawm tib lub yeeb nkab kab yog li 1/5 ntawm cov yeeb nkab, thiab kev tsim kho yog yooj yim. Ua tau zoo txo cov nqi siv nyiaj.
(4) muaj kev ywj pheej zoo. Polyethylene tuaj yeem ua tiav hauv cov coils, uas tau yooj yim tov qee cov teeb meem thaum tsim kho, yog li txo cov naj npawb ntawm cov pob qij txha thiab txaws.
(5) Nws muaj kev ua haujlwm zoo. Lub elongation ntawm so ntawm polyethylene kav yog 20 lub sij hawm uas ntawm cov hlau kav. Lub vauj tsev thaum tawg ntawm polyethylene kav dej nce mus txog 800%, deb tshaj qhov yuav tsum tau tshaj ntawm 350% hauv lub teb chaws tus txheej txheem GB15558.1-95. Muaj peev xwm resilience.
(6) Nws muaj cua zoo nruj thiab cov pa roj tsawg. Polyethylene muaj kev nyab xeeb thiab ruaj khov thiab yooj yim rau kev sib tshooj.
