GRP Composite Manhole Cover
GRP manhole covers, or Glass Reinforced Plastic manhole covers, are composite material manhole covers made with glass fiber as the reinforcing material and synthetic resin as the matrix. Due to their lightweight, high strength, corrosion resistance, and anti-theft properties, they are widely used in municipal, industrial, and special environments.
1. Municipal roads: suitable for light to medium load areas such as sidewalks, non motorized vehicle lanes, and residential roads; Some high-strength models (such as D400 and above) can be used on urban main roads.
2 . Green belts and parks: Due to their customizable colors and patterns, they can coordinate with the environment and have both functionality and aesthetics.
3. Power communication facilities: such as cable trenches, communication wells, power inspection wells, etc., utilizing their electrical insulation and corrosion resistance characteristics, in accordance with the requirements of T/CIA 002-2022 standard
4. Water supply and drainage system: used for sewage branch pipes, rainwater inspection wells, etc., but it is recommended to use cast iron manhole covers for the main sewage pipe network to ensure long-term sealing and structural safety
5. Special areas: places with requirements for anti-theft, anti-skid, and low-noise such as gas stations, factory areas, and highway service areas