Qhov txawv ntawm PU thiab cement lined ductile iron pipe yog dab tsi?

Cov kav hlau ductileCov kav dej uas muaj PU thiab cov cement mortar yog ob hom kev xeb uas siv ntau, sib txawv ntawm lawv cov ntaub ntawv hauv, cov yam ntxwv kev ua tau zoo, thiab cov xwm txheej siv. Ob qho tib si ua lub hom phiaj tseem ceeb: tiv thaiv cov kav dej kom tsis txhob xeb los ntawm cov xov xwm uas raug thauj mus los thiab xyuas kom meej tias cov dej/kua dej zoo. Cov hauv qab no qhia txog qhov sib txawv ntawm ob lub kav dej hlau ductile coated no.

Daim Ntawv Thov Tseem Ceeb:

• Cov yeeb nkab hlau uas muaj cement coated: Feem ntau siv rau cov dej nyoos, dej haus, cov kav dej phwj uas tsis muaj zog;
• PU coated ductile hlau yeeb nkabCov dej phwj uas muaj xeb, dej hiav txwv desalination, dej khib nyiab los ntawm kev lag luam, kev thauj mus los ntawm kev ntws ceev;

Txoj Kev Tiv Thaiv Kev Xeb:

• Cov yeeb nkab hlau ductile cement txheej: Zaj duab xis passivation alkaline siab thiab kev rho tawm lub cev;
• Txheej polyurethane txheej rau cov yeeb nkab hlau ductile: Txheej txheej tuab thiab tshuaj lom neeg tsis muaj zog, tsis nkag mus rau hauv;

Cov Khoom Nto:

• Cov yeeb nkab hlau uas muaj cement coated: Roughness coefficient K≈0.03mm, yooj yim rau kev ntsuas;
• PU coated ductile hlau yeeb nkab: Qhov chaw du, qhov roughness coefficient K <0.01 hli, tsis muaj scaling, me me hydraulic poob;

Kev Tiv Thaiv Kev Sib Nraus / Kev Cuam Tshuam:

• Cov yeeb nkab hlau uas muaj cement coated:Feem ntau, yooj yim ntxuav los ntawm cov khoom khov kho;
• PU coated ductile hlau yeeb nkab： Siab heev, tuaj yeem thauj cov xov xwm uas muaj xuab zeb thiab slag;

Kev Hloov Kho Kub:

• Cov yeeb nkab hlau uas muaj cement coated：0 – 80 ℃;
• Txheej Polyurethane thiab Sab Hauv rau ntawm Cov Yeeb Nkab Hlau Ductile: -40 – 120 ℃;

Qib Huv:

• Cov yeeb nkab hlau uas muaj cement coated:Ua raws li cov qauv dej haus;
• PU coated ductile hlau yeeb nkab:Tsis muaj kuab tshuaj, tsis muaj VOC, tau ntawv pov thawj NSF/WRAS, thiab siv tau rau dej haus ncaj qha;

Kev Pabcuam Lub Neej:

• Cov yeeb nkab hlau uas muaj cement coated:≥50 xyoo;
• PU coated ductile hlau yeeb nkab:≥100 xyoo thiab lub sijhawm tsis tas saib xyuas ntev dua;

Tus nqi tag nrho:

• Cov yeeb nkab hlau uas muaj cement coated:Tus nqi qis thiab yooj yim rau kev tsim kho;
• PU coated ductile hlau yeeb nkab:Tus nqi siab tab sis tus nqi qis rau lub neej voj voog;

Cov ntaub pua plag cement yog pheej yig thiab siv tau ntau yam, tsim nyog rau kev muab dej ib txwm muaj; PU ntaub pua plag "zero permeability + high wear resistance" yog thawj qhov kev xaiv rau kev xeb siab, kev ntws siab thiab lub neej ntev. Thovtiv tauj pebyog xav paub ntxiv txog yuav ua li cas xaiv cov yeeb nkab DI kom raug.