Coal mine polyethylene pipe

Our produced piping is the Coal Mine Polyethylene Pipe (KM) (hereinafter referred to as the piping), suitable for underground water supply and drainage, slurry spraying, positive pressure ventilation, negative pressure ventilation, and gas extraction in coal mines. The reference working temperature for the piping is 20°C, with an operating temperature range of -10°C to +40°C. There is a pressure reduction factor between 20°C and 40°C, and the working pressure is the nominal pressure multiplied by the pressure reduction factor. For piping used in gas extraction, the nominal pressure must not be less than 1.0MPa.