Cast Iron Manhole Covers, Frames, and Gratings

Cast Iron products are heavy and ensures rigidity, longevity and Good Crushing Strength with higher sectional thickness.

Type & Specification

• Material Cast Iron as per IS 210 (FG 150 Grade)
• Load Bearing Capacity LD - 2.5 MT
  MD - 10 MT
  HD - 20 MT
  EHD - 35 MT
• Shapes Square cover & Square frame
  Rectangular cover & Rectangular frame
  Circular cover & Square frame
  Circular cover & Circular frame
• Weight Range From 3.5 kg to 970 kg depending on type and application.
• Features High Impact Strength, Rigid, Strong and Durable, High grip, Antiskid Design.

Application

• It is used for Sewage & Storm water Drainage in Infrastructure Industry for installation within areas subjected to pedestrian and vehicular traffic. Based on load bearing capacity following are the application areas:
• Light duty Manhole covers (LD-2.5) - Suitable for use within residential and institutional complexes/areas with pedestrian but occasional light motor vehicle traffic. These covers are used for Inspection Chambers.
• Medium duty Manhole covers (MD-10) – Suitable for use in service lanes/roads, on pavements for use under medium duty vehicular traffic for car parking areas.
• Heavy duty Manhole covers (HD-20) – Suitable for use in institutional/commercial areas/carriageways/city trunk roads/bus terminals, with heavy duty vehicular traffic of wheel loads between 5 to 10 tones, like buses, trucks and parking areas and where the manhole chambers are located in between the pavement and the middle of the road.
• Extra Heavy duty Manhole covers (EHD-35) – Suitable for use on carriageways in commercial/industrial/port areas/near warehouse/godowns where frequent loading and unloading of trucks/trailers are common, with slow to fast moving vehicular traffic of the types having wheel loads up to 11.5 tonnes irrespective of the location of the manhole chambers.