PERT yeeb nkab, los yog cua sov-cov yeeb nkab polyethylene, yog ib hom yeeb nkab uas ua los ntawm cov khoom siv tshwj xeeb polyethylene. Nws muaj cov cua sov ua haujlwm zoo, siab ua haujlwm, thiab tshuaj tiv thaiv corrosion, thiab dav siv hauv kev tsim cov dej kub thiab txias, cua sov hauv qab, thiab cov kav dej. Raws li cov khoom sib txuas hauv cov kav dej, txoj kev sib txuas ntawm cov yeeb nkab fittings yog qhov tseem ceeb rau kev ruaj ntseg thiab kev nyab xeeb ntawm tag nrho cov kab ke.
PERT yeeb nkab fittings tuaj yeem txuas nrog ntau txoj hauv kev, feem ntau suav nrog kub - melted taub qab vuam, electrofusion taub qab vuam, thiab cov khoom siv sib txuas. Kub- melted pob tw welding muaj cua sov qhov kawg ntawm qhov haum thiab cov yeeb nkab kom txog thaum lawv yaj, tom qab ntawd txuas nrog lawv sai thiab cia lawv txias thiab khov. Txoj kev no muaj kev sib txuas siab zog thiab kev sib khi zoo, thiab tsim nyog rau kev sib txuas PERT cov kav dej ntawm tib cov khoom thiab cov lus qhia tshwj xeeb. Electrofusion taub qab vuam siv cov cua kub hauv qhov haum kom yaj thiab fuse qhov chaw sib cuag ntawm qhov haum thiab cov yeeb nkab ua ke, ua kom muaj kev sib txuas zoo. Kev sib txuas tshuab siv cov xov, clamps, lossis lwm yam kev siv tshuab los txuas cov yeeb nkab thiab cov yeeb nkab. Txoj kev no yog ib qho yooj yim rau nruab, tab sis nws sealing thiab kev sib txuas lub zog tej zaum yuav me ntsis inferior rau kub -melt thiab electrofusion taub qab vuam.
Hauv kev siv tswv yim, kev xaiv ntawm txoj kev sib txuas yog nyob ntawm qhov xav tau tshwj xeeb ntawm cov kav dej, kev tsim kho, thiab cov khoom siv thiab cov ntsiab lus ntawm cov kav dej thiab fittings. Piv txwv li, kev sib txuas ntawm cov neeg kho tshuab tuaj yeem tsim nyog rau cov ntawv thov uas xav tau kev teeb tsa sai lossis nquag disassembly; thaum thermofusion los yog electrofusion taub qab vuam yog ntau txhim khu kev qha rau daim ntawv thov xav tau siab sealing thiab txuas lub zog.
Tsis tas li ntawd, cov ntsiab lus hauv qab no yuav tsum tau muab sau tseg thaum lub pob tw vuam PERT yeeb nkab fittings: Ua ntej, xyuas kom meej tias qhov kawg ntawm cov fittings thiab cov kav dej yog tiaj tus, huv si, thiab tsis muaj roj, impurities, thiab lwm yam. thib ob, xaiv qhov tsim nyog lub pob tw vuam kub thiab siab raws li cov khoom siv thiab cov lus qhia ntawm cov fittings thiab cov kav dej; thib peb, tuav ruaj khov thiab kub thaum lub pob tw vuam txheej txheem kom tsis txhob muaj qhov tsis xws luag xws li npuas thiab tawg; thib plaub, ua qhov tsim nyog tshuaj xyuas thiab kev ntsuam xyuas tom qab lub taub qab vuam kom ntseeg tau tias qhov kev sib txuas zoo ua tau raws li cov qauv kev cai.
Nrog rau kev txhim kho txuas ntxiv ntawm cov kav dej thev naus laus zis, PERT yeeb nkab haum lub taub qab vuam tshuab kuj tseem txhim kho tas li. Ntau lub taub qab vuam cov cuab yeej ntse thiab cov cuab yeej tam sim no muaj nyob rau hauv kev ua lag luam, uas tuaj yeem txhim kho pob tw vuam efficiency thiab kev sib txuas zoo. Nyob rau tib lub sijhawm, cov khoom siv yeeb nkab tshiab thiab cov qauv tsim tau tshwm sim tas li, muab ntau txoj kev xaiv thiab muaj peev xwm rau kev siv PERT yeeb nkab kav.
