C250,D400,frame size DIA850,750,CO DIA 600,580,height 75mm,100mm

Product Description

    1. Material: Ductile iron grade 500-7 in accordance with ISO 9001

    2. Standard: BS EN124-2: 2015

    3. Certificate: ISO9001, SGS, BSI Kitemark

    4. External coating: Bitumen or according to customers requirement

    5. Ductile iron manhole covers are divided into the following classes: A15, B125, C250, D400, E600 and F900

    CLASS A15 (Test load 15KN) Green belt, sidewalks and other motorized vehicles prohibited area.

    CLASS B125 (Test load 125KN) Sidewalks, non-motorized vehicles, the small parking lot and underground parking

    CLASS C250(Test load 250KN) Residential district, Street and Lane, only light vehicles and car driving areas, curbs on both sides of the road began within 0.5 m

    CLASS D400 (Test load 400KN) City main road, highway, highways and other areas

    CLASS E600(Test load 600KN) Freight stations, docks, airports and other areas

    CLASS F900(Test load 900KN) Airport runways and other areas