♦ Cov hlau muaj zog, tuaj yeem tiv taus kev ntxhov siab thiab kev tsim txom lub cev, tuaj yeem tso rau hauv qhov chaw tsis zoo thiab kev ua haujlwm thiab kev ua haujlwm yam tsis muaj kev ua haujlwm ntev.
♦Cov yeeb nkab hlau, fittingsthiab cov khoom siv yog siv rau kev sib kis ntawm cov dej haus thiab dej pov tseg thoob plaws ntau thaj chaw xws li cov kav dej haus, cov kav dej phwj tuaj, cov tshuab tua hluav taws thiab HVAC cov kav dej.
♦ Qhov zoo ntawm cov kav hlau txuas thiab fittings:
• Lub zog tensile siab, zoo elastic module thiab ductility zoo heev, ua rau nws tsim nyog rau cov ntawv thov kev ntxhov siab thiab qhov uas yuav muaj kev ntxhov siab.
• Siab corrosion kuj.
• Zoo heev hydraulic txaus.
• Siab ua hauj lwm siab piv rau lwm hom kav dej.
• Yooj yim ntawm kev teeb tsa.
• Lub neej ntev.
•Yuav haum ground zog.
♦ Txheej:
Sab nrauv txheej:
BS EN545 yeeb nkab: metallic zinc txheej nrog txheej txheej
BS EN545 fittings: zinc nplua nuj xim txheej nrog txheej txheej
TS EN 598 Cov yeeb nkab & fittings: epoxy xim
♦ Kev tiv thaiv sab hauv
TS EN 545 Sulphate resistant cement mortar hauv ob sab phlu
BS EN598: High aluminium cement mortar hauv ob sab phlu
Post lub sij hawm: Apr-01-2021