PPR pipeline yog ib hom tshiab ntawm cov kav dej, ib yam ntawm cov kav dej yas, uas yog cov thermoplastic. Nws muaj kev ua haujlwm zoo thiab kev siv. Nws tuaj yeem siv rau hauv tsev kho kom zoo nkauj cua sov, dej siv, engineering dej kub kav dej thiab lwm yam. Nws yog ib qho ntawm cov kav dej nrog kev ua tau zoo thiab kev siv.
Nyob rau hauv cov txheej txheem ntawm kev muab dej los yog siv PPR pipeline system, huab cua tuaj yeem sau rau hauv cov kav dej thiab cuam tshuam rau cov cua sov. Nyob rau lub sijhawm no, qhib lub qhov dej ntawm lub tshuab xa dej thiab cov khoom ntim kom tso cov pa tawm. Cov txheej txheem yog tib yam li cov cua kub ib txwm muaj. Nyob rau tib lub sijhawm, cov dej ntws ntawm txhua ceg ntawm PPR system tuaj yeem hloov kho los ntawm kev kho lub pob valve ntawm txhua ceg, txhawm rau tswj qhov kub ntawm txhua qhov, tab sis kev hloov kho yuav tsum tau ceev faj kom tsis txhob cuam tshuam lwm ceg.
Cov kav dej ntawm cov kav dej kho kom zoo nkauj hauv tsev muaj lub zog siab compressive thiab zoo kub tsis kam: qhov kev ua haujlwm tseem ceeb yog cov PPR yeeb nkab muaj kev ua haujlwm zoo siab thiab muaj qee yam hlau yam ntxwv ntawm lub sijhawm ntev - lub zog. Vim qhov sib ntxiv ntawm cov hlau txheej, qhov rigidity ntawm cov yeeb nkab yog nce thiab creep ntawm cov yeeb nkab yog txo, thiaj li yuav txhim khu lub compressive zog thiab kub tsis kam ntawm cov yeeb nkab.
Raws li txoj cai, cov thermoplastic ntawm cov cua sov pert thiab cov dej kub cua sov PPR kav yog ib hom yaj. Nws tsis muaj qhov chaw ruaj khov thiab tuaj yeem yaj tom qab molding. Nws tuaj yeem suav tau tias nws lub zog nruab nrab tsis tshua hloov pauv hauv 100 xyoo, yog li qhov profile no yog qhov tseem ceeb tshaj plaws thaum siv rau hauv pem teb cua sov kav.
PPR pipeline system muaj cov nqi zoo dua ntawm cov khoom siv (tus nqi ntawm cov khoom siv raw yog qhov tsawg). Nrog kev txhim kho txuas ntxiv ntawm cov ntaub ntawv, kev ua haujlwm ntawm cov kav dej tau raug txhim kho. Cov kav dej muaj qhov zoo toughness, loj dabtsi yog khoov vojvoog, tsis tshua muaj kev tsim kho lub zog, kev tsim kho yooj yim, kev tiv thaiv ib puag ncig zoo thiab kev noj qab haus huv, thiab tau nce sai thiab nrov.
