1. PE / AL / PE (Polyethylene / Aluminium / Polyethylene);
2. PE / AL / PEX (Polyethylene / Aluminium / Crosslinked Polyethylene);
3. PEX/AL/PEX (Crosslinked Polyethylene/Aluminium/Crosslinked Polyethylene).
Qhov thib ib yog cov txheej sab hauv thiab sab nrauv yog polyethylene, qhov thib ob yog cov txheej sab hauv yog cross-linked polyethylene, txheej txheej yog polyethylene, qhov thib peb yog cov txheej sab hauv thiab sab nrauv yog ob qho tib si cross-linked polyethylene, thiab nruab nrab. txheej yog aluminium.
Cov yeeb nkab no, vim tias nws cov txheej txheem txhuas, tuaj yeem ua rau muaj kev kub ntxhov, thaiv cov pa oxygen, CO2, thiab lwm yam kom tsis txhob muaj kev hem thawj ntawm corrosion rau cov khoom siv hauv cov kav dej, zoo thermal conductivity thiab txo qhov kub qhov concentration, antistatic thiab zoo shielding thiab muaj ib yam yog li ntawd, nws yog yooj yim txais los ntawm pej xeem. Thiab vim tias nws cov yeeb nkab txuas txuas yog ua los ntawm tooj liab, Meifeng yas alloy yeeb nkab fittings, thiab stainless hlau xov sealing yeeb nkab fittings, kev sib txuas yog yooj yim dua, tsis tas yuav tsum muaj cov cuab yeej tshwj xeeb, thiab nws yog ze rau qhov sib cuam tshuam ntawm ntau cov cam khwb cia. hlau kav, uas qhia nws tej yam zoo.
Qhov thib ob thiab thib peb ntawm cov khoom yas yog ua los ntawm kev sib txuas ntawm cov polyethylene (PEX), uas muaj cov qauv sib txawv thiab muaj zog dua li thawj hom, thiab tsim nyog rau lub tsev dej thiab cua sov.
Los ntawm kev sib piv saum toj no, nws tuaj yeem pom tau tias cov 5 hom cov kav dej yas uas tuaj yeem siv rau sab hauv tsev txias thiab dej kub muaj lawv qhov zoo thiab qhov tsis zoo. Nws muaj txiaj ntsig zoo rau cov dej kub (xws li cov cua sov hauv pem teb nrog cov kav dej kub) vim tias nws tuaj yeem tiv thaiv kev nkag mus ntawm oxygen thiab tsis txhob oxidative corrosion hauv lub cev. Lwm cov kav dej yas kuj tseem siv tau ntau txoj hauv kev los ua kom lawv cov khoom tsis zoo oxygen barrier, yog li lawv tuaj yeem siv tau rau hauv cov dej kub kaw. Ntxiv rau tsib yam ntawm cov kav dej yas saum toj no, cov kav hlau yas thiab cov yeeb nkab fittings, yas-coated steel kav thiab cov yeeb nkab fittings, yas-clad tooj liab kav, yas-lined txhuas kav, thiab lwm yam., lawv kuj siv tau nyob rau hauv thaj chaw ntawm sab hauv tsev dej kub thiab dej txias. Cov kav dej yas lossis yas-coated hlau kav no kuj muaj lawv tus kheej qhov zoo thiab qhov tsis zoo. Piv txwv li, cov yas-lined lossis yas-coated steel yeeb nkab yog raws li cov yeeb nkab steel galvanized, thiab kev ntseeg siab ntawm nws cov khoom siv tshuab feem ntau yuav ntseeg tau los ntawm cov neeg siv khoom. Yog li ntawd, tam sim no, cov kav dej ntau yam uas tau hais los saum toj no tau raug siv los ntawm kev siv dej txias thiab dej kub hauv tsev thiab txawv teb chaws, thiab lawv tau txhim kho thiab txhim kho tas li. Aluminium-yas composite kav tau tsim sai heev nyob rau hauv Suav teb, thiab kev sib koom ua lag luam tuaj yeem nthuav dav raws li yav tom ntej, tab sis nws tsis tuaj yeem lees paub tias cov kav dej txhuas-yas sib xyaw yuav dhau los ua cov kav dej hauv tsev. Nws tuaj yeem kwv yees tias qhov xwm txheej uas ntau cov kav dej sib tw thiab sib koom ua lag luam hauv cov kav dej hauv tsev yuav muaj nyob rau lub sijhawm ntev. Hauv thaj chaw ntawm cov kav dej kub thiab dej txias hauv tsev, cov chaw tsim khoom hauv tsev ntawm cov kav dej saum toj no tau tsim cov kab ntau lawm thiab muab tso rau hauv ntau lawm.