Plastic inspection wells can be divided into plastic inspection wells for drainage in building communities and plastic inspection wells for municipal drainage.
The plastic manhole consists of Jing Zuo, shaft, manhole cover and plastic manhole parts. Buried drainage pipes can be used in inspection wells, such as PVC-U double-layer axial hollow pipe and HDPE hollow winding pipe.
According to the number and angle of nozzles, there are Jing Zuo at the beginning, Jing Zuo through, Jing Zuo at the tee, Zuojing at the tee and Jing Zuo at the 90-degree elbow. In order to adapt to various drainage conditions, plastic inspection wells are equipped with spare parts such as internal and external diameter conversion joints, saddle joints, variable diameter joints, confluence joints and variable angle joints. These spare parts and Jing Zuo are used to ensure the fluidity and tightness of the whole drainage system.
The manhole cover can be cast iron manhole cover, composite manhole cover and steel fiber concrete manhole cover. The quality meets the requirements of the current Plastic Inspection Wells for Drainage in Building Communities CJ/T233-2006. The color is white or gray, and the inner and outer walls of the shaft should be smooth and flat. There should be no bubbles, cracks, depressions, uneven colors and decomposition discoloration lines on the surface. The plastic shaft Jing Zuo has no cracks and cracks under the static load pressure of 15KN.