A sewage pipe is a pipe used to transport wastewater or sewage from homes and industries.There are various types of sewage pipe. especially with the development of new technology and new materials in recent years, many kinds of new tubing are developed, which have different features and advantages and are applied to drainage industry with good performance.
The major Metal tubing applied to drainage pipeline engineering mainly refer to steel tubes, spheroidal graphite iron tubes, gray cast iron tubes etc.
Steel tube is applicable to the complex landforms with it’s high mechanical strength, good resistance to pressure and convenient for manufacture and use.
However, the anti-corrosion and protection of the tubes is a problem. Like other metal pipes, steel is prone to corrosion, so it is lined with an asphalt coating when used in water mains to protect against acidic water. This also retains its good flow characteristics. The drawback to the various coatings and linings is that they can be damaged during installation.
The coating service life was directly affected by the surface quality disposed of steel pipe and polyethylene merging.so the cost of steel tube is much high.
Steel’s primary benefit is brute strength. Cracking typically doesn’t occur, and under abnormal loads, the material bends rather than breaking.
Large-diameter steel piping is most often used in pressure pipes for sewage and wastewater applications. It can be made using three methods: seamless, welded and casting mold.
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