一,Cast iron pipes:
- Cast iron pipes are pipes cast with cast iron, used for water supply, drainage and gas transmission pipelines, including cast iron straight pipes and pipe fittings. According to different casting methods, they are divided into continuous cast iron pipes and centrifugal cast iron pipes.
二, Features and performance:
- It has the essence of iron, the performance of steel, excellent corrosion resistance, strong ductility and easy installation. It is mainly used for water supply and gas transmission in municipal industrial and mining enterprises.
三, Key points for use:
- Trench excavation---B=D1+2(b1+b2) Trench support---does not hinder the lower pipe and the stabilizing pipe.
- T-type interface pipes are equipped with piers at the vertical or horizontal turning points.
- According to the design of building standards, select parameters that meet the standards for construction.
四, Scope of application:
- Newly built, expanded and renovated civil and industrial buildings.
五,Installation principles:
- Underground first, then above ground,
- First large pipes, then small pipes,
- First main pipes, then branches.