Glass Fiber Reinforced Plastic (GRP) manhole cover (manufactured by continuous winding process) (abbreviated as GRP), is a new type of manhole cover formed by continuous winding process, 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 characteristics.

High axial compression strength, high allowable thrust

GRP pipe axial compression strength index > 85 MPa, typical value about 95 MPa; pipeline allowable thrust is greater than that of traditional piping materials, with a longer allowable deflection distance. 2. Suitable for various operating conditions.

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

Model and Specifications