Ductile Iron Grates maka ọwa
Nkọwa ngwaahịa
Grates maka ọwa ductile ironEN-GJS-500-7na-agbaso ụkpụrụUNI EN 1563:2012, nke nwere ikike ibu ihe karịrị 900 KN (ton 90), na-agbaso usoro ibu F900 dị ka EN 124: 2015 si kwuo.
Ọwa mmiri mmiri bara uru iji nakọta mmiri ozuzo.Ọ na-akwado onwe ya, ụdị mgbochi mono [I” yana nguzogide dị elu kwekọrọ na UNI EN 1433: 08, yana asambodo CE.CA mara jijiji RCK = 45 N/mm2 ngwaahịa nwere akara R yana mgbochi ice.Klas XD3/XF4 dị n'ime ihe nke 5 ML nwere okirikiri nwere ụdị V.Njikọ nwoke na nwanyị.Wall ọkpụrụkpụ si 100mm ka 200mm na esịtidem elu nwere ike ịdị iche iche site na 200mm ka 1050mm.Igwe a na-eji olulu mmiri chere ihu grating nwere okpokolo agba nke nwere omimi njikọ agbakwunyere nke 50mm.M12 igwe anaghị agba nchara na-edozi bolts..
Nhazi NORM EN 124 na ebe
Enwere ike kewaa mkpuchi manhole, gullies na gratings na klas ndị a: A15, B125, C250, D400, E600 na F900
Otu 6 (Klas F900): mpaghara nwere nnukwu ibu, dịka ọdụ ụgbọ elu.
