Glass Fiber Reinforced Plastic (GRP) Manhole Covers (manufactured using the continuous winding process) (abbreviated as GRP), a new type of manhole cover formed through the continuous winding process, is composed of resin, glass fibers (continuous + chopped), and quartz sand. The cover contains

Axially reinforced chopped glass fiber enhances the pipeline's axial compressive strength.

Product Performance Features

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

High axial compression strength, high allowable thrust

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

GRP pipes are lightweight yet strong, resistant to sinking in silt soil, and suitable for various complex working conditions.

Model and Specifications