Glass Fiber Reinforced Plastic (GRP) Manhole Covers (Continuous Filament Winding Process) (Abbreviated: GRP), a new type of manhole cover formed through a continuous filament winding process, is composed of resin, glass fiber (continuous + chopped), and quartz sand. The cover contains:

Axially reinforced chopped glass fibers enhance the pipe's axial compressive strength.

Product Performance Features

GRP pipe not only has the advantages of light weight, high strength, anti-corrosion, and excellent hydraulic properties of glass steel pipes, but also possesses the following features.

High axial compression strength, high allowable thrust

GRP pipe axial compression strength index > 85MPa, typical value about 95 MPa, pipe allowable thrust exceeds that of traditional materials, with a longer single bearing span. 2. Suitable for various working conditions.

GRP pipes are lightweight and high-strength, resistant to settling in silt soil, suitable for various complex working conditions.

Specification Model