PP-R pipe has the following main characteristics in addition to the general plastic pipe's light weight, corrosion resistance, no scaling and long service life.
1. Tsis yog - lom thiab tu cev. Cov khoom siv raw khoom molecules ntawm PP-R tsuas yog carbon thiab hydrogen cov ntsiab lus, thiab tsis muaj teeb meem thiab tshuaj lom. Nws yog tu cev thiab txhim khu kev qha. Nws tsis yog tsuas yog siv hauv cov kav dej kub thiab dej txias, tab sis kuj tseem siv hauv cov dej ntshiab huv.
2. Kev txuag hluav taws xob thiab txuag hluav taws xob. Lub thermal conductivity ntawm PP-R yeeb nkab yog 0.21w/mk, uas tsuas yog 1/200 ntawm cov yeeb nkab steel.
3. Zoo tiv thaiv tshav kub. Vicat softening point ntawm PP-R yeeb nkab yog 131.5 degree, thiab qhov siab tshaj plaws ua haujlwm kub tuaj yeem ncav cuag 95 degree, uas tuaj yeem ua tau raws li cov kev cai siv ntawm cov dej kub hauv lub tsev dej thiab cov kav dej.
4. Lub neej ua haujlwm ntev. Lub neej kev pab cuam ntawm PP-R yeeb nkab tuaj yeem ncav cuag ntau dua 50 xyoo nyob rau hauv qhov kev ua haujlwm kub ntawm 70 degree thiab ua haujlwm siab ntawm 1.0MPa; lub neej kev pab cuam ntawm PP-R yeeb nkab tuaj yeem ncav cuag ntau tshaj 100 xyoo ntawm qhov kub thiab txias (20 degree ).
5. Ib qho yooj yim installation thiab txhim khu kev qha kev twb kev txuas. PP-R muaj kev vuam zoo. Cov kav dej thiab fittings tuaj yeem txuas nrog kub yaj thiab electrofusion, uas yooj yim rau nruab thiab txhim khu kev qha. Lub zog ntawm qhov sib txuas yog ntau dua li ntawm cov yeeb nkab lub cev.
6. Cov ntaub ntawv tuaj yeem siv dua. PP-R pov tseg yog ntxuav thiab crushed thiab rov ua dua rau kev tsim cov kav dej thiab fittings. Tus nqi ntawm cov khoom siv rov ua dua tsis pub dhau 10 feem pua ntawm tag nrho, uas tsis cuam tshuam rau cov khoom zoo.
Daim ntawv thov teb
1. Cov dej kub thiab dej txias hauv cov tsev, nrog rau cov cua sov hauv nruab nrab
2. Cov tshuab cua sov hauv cov tsev, nrog rau cov plag tsev, sab hauv thiab cov cua sov ua kom sov
3. Direct haus dej ntshiab huv system
4. Central (centralized) cua txias system
5. Cov kav dej muaj xws li kev thauj mus los lossis tso tawm cov tshuaj lom neeg