Značilnosti oblikovanja
1. Ima dobro fleksibilnost, zaradi česar je priročno in ekonomično polaganje. Proizvedene cevi lahko med gradnjo zvijemo in upognemo, da zmanjšamo uporabo cevnih priključkov in zmanjšamo stroške gradnje.
2. Nizka temperatura krhkega razpokanja. Cev ima odlično nizko-temperaturno odpornost, zato jo je mogoče izdelati tudi v primeru nizkih temperatur pozimi, pri upogibanju pa cevi ni treba predgrevati.
3. Dobra kemična odpornost in dolga življenjska doba;
4. Dobra okoljska prilagodljivost, lahka, dobra prožnost in se lahko dobavi v tuljavah;
5. Pod pogojem, da je delovna temperatura 70 stopinj Celzija in tlak 0,4MPa, se lahko varno uporablja več kot 50 let.
6. V proizvodnem procesu se cevi ne dodajajo strupeni dodatki. Notranja stena je gladka, se-ne lušči in ne razmnožuje bakterij, ki jih je mogoče varno uporabljati pri transportu pitne vode in na drugih področjih.
Obseg uporabe
The application of PE-RT pipes in the field of cold and hot water pipes in buildings in my country has developed rapidly, and the raw materials have also further developed. In 2002, the industry-standard "heat-resistant polyethylene (PE-RT) piping system for hot and cold water" was released, but because the industry standard at that time was based on the German standard "heat-resistant polyethylene (PE-RT) piping - general quality requirements" " and "Heat Resistant Polyethylene (PE-RT) Pipes - Dimensions", both of which are based on the performance indicators of Type I PE-RT materials. With the development of materials, the performance indicators of type II PE-RT materials have been much higher than the first-generation materials, and the international standard ISO22391 "heat-resistant polyethylene (PE-RT) piping system for cold and hot water" has also been revised and updated. , adding requirements for Type II PE-RT piping. 1
Z razvojem materialov so bile cevi PE-RT posodobljene in nadgrajene na cevi PE-RT II, ki so glede na njihove somonomere razdeljene na tri vrste:
1. kopolimerizacija etilena in oktena - toplotno- odporen polietilen (C2 plus C8);
2. kopolimerizacijski-toplo-polietilen, odporen na etilen in heksen (C2 plus C6);
3. Toplotno-odporni polietilen (C2 plus C4), kopolimeriziran z etilenom in butenom
The launched (PE-RT Ⅱ type pipe) material is suitable for industrial and civil building cold and hot water pipeline systems, drinking water systems, thermal embedded pipes, ground radiant heating systems, and high-temperature ground source heat pump systems, especially in northern applications. In the secondary pipe network of urban heating system - PE-RT II type prefabricated direct buried thermal insulation pipe.
