What problems should be paid attention to in the installation of ball milled cast iron pipes, everyone should pay attention to these problems below, please read the following for specific details.
1. The selection of pipes and pipe fittings is ball milled cast iron pipe, the design working pressure is 1.0MPa, and the length of a single pipe is 6 meters; the pipe fittings are ball milled cast iron pipe fittings; the pipe interface adopts T-shaped rubber ring socket; the design slope of the branch pipe is 0.003, flows to the main pipe.
2. Ball milled cast iron pipe installation procedure construction preparation → excavation of pipe trenches → pipe trench inspection → pipe release → pipe quality inspection → pipe mouth rust removal → pipe cavity cleaning → working pit → pipe drainage → inspection of sealing rubber ring → pipe installation → Check the installation quality → backfill the thoracic cavity soil of the tube body to 500mm from the top of the tube → tightness test of the straight section → backfill soil
3. Excavation of pipe trenches and reclaimed water pipeline construction should be carried out after the completion of the road soil foundation construction, and the excavation should be graded according to the soil quality, and the national standard "Construction and acceptance of water supply and drainage pipeline engineering" (GB50268-97) .