Glass Fiber Reinforced Plastic (GRP) manhole covers (manufactured by continuous winding process) (abbreviated as GRP), a new type of manhole cover formed by a continuous 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, in addition to the light weight, high strength, corrosion resistance, and excellent hydraulic properties of glass steel pipe, also boasts 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 greater than traditional materials, with longer single thrust distance. 2. Suitable for various operating conditions.

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

Model and Specifications