PE-RT Hom II prefabricated ncaj qha- faus insulated piping nta peb - txheej txheej txheej uas muaj cov cua sov- resistant polyethylene (PE-RT II) cov yeeb nkab, ib txheej polyurethane ua npuas ncauj rwb thaiv tsev, thiab siab - ntom ntom polyethylene (HDPE). Nws cov txiaj ntsig tseem ceeb suav nrog: PE- cov khoom siv RT II muaj cov thermal conductivity tsawg-tsuas yog 1% ntawm cov yeeb nkab steel zoo tib yam- muab cov thermal rwb thaiv tsev uas muaj txiaj ntsig zoo txo cov cua sov; nyob rau hauv zoo tib yam kev khiav hauj lwm tej yam kev mob, nws outperforms steel yeeb nkab nyob rau hauv cov nqe lus ntawm ob qho tib si kub poob thiab kub poob. Tsis tas li ntawd, nws tshem tawm tag nrho cov teeb meem corrosion cuam tshuam nrog cov kav hlau, muab qhov kev pab cuam lub neej ntev txog 50 xyoo-ntau tshaj li ntawm cov kav hlau ib txwm siv-thiab txo cov nqi txij nkawm thiab hloov cov nqi ntawm cov kav dej hauv lub neej.
Cov kav dej tau koom nrog ntawm electro- fusion lossis kub- vuam vuam, ua kom muaj zog sib koom ua ke ntawm cov yeeb nkab lub cev thiab ua tiav kev ntseeg siab, molecular - qib foob. Nws lub teeb yuag thiab hloov tau zoo heev txhim kho kev thauj mus los thiab kev txhim kho kev ua haujlwm; Kev txheeb xyuas kev lag luam qhia tau hais tias, piv rau cov kav hlau insulated ib txwm muaj, nws muaj kev txuag ntawm kwv yees li 15.0% hauv cov khoom siv thiab kwv yees li 4.2% ntawm tag nrho cov nqi tsim khoom (nrog rau kev ua haujlwm hauv pej xeem thiab kev teeb tsa). Tsim tshwj xeeb rau lub sijhawm ntev - thauj cov dej kub ntawm qhov kub qis dua 95 degree, cov khoom tsim nyog rau cov tshuab xws li cov kav dej kub hauv nroog, cov dej kub hauv tsev, thiab cov kav dej kub kub, nrog kev pom zoo ua haujlwm siab txog li 1.0 MPa. Nws daim ntawv thov thiab kev tsim qauv tau txais kev txhawb nqa los ntawm cov qauv xws li CJ / T 480-2015 thiab cov kev cai tsim nyog hauv zos, ua kom muaj kev paub tab, nyab xeeb, thiab txhim khu kev qha technology.