Plastic coated steel pipe is a new type of pipe developed by domestic zui. It has been applied in various engineering fields due to its high compressive strength, strong anti-corrosion ability and small fluid resistance. The product has strict control of its own processing technology and quality. It is also very strict during construction. If the installation is not standardized, the consequences will be incalculable. Therefore, the steel-plastic pipe installation specifications must be observed during construction. Coated steel pipe lined with plastic pipe and plastic pipe has two types have their own performance and advantages, but plastic pipe is much more effective than lined. The reason is that the plastic-coated composite steel pipe is cost-effective, and the connection method of the two pipes is basically the same in the construction. The only difference is that the plastic-coated pipe can be connected by welding, and the plastic-lined pipe cannot be welded.
The places to be noticed in the construction of plastic coated steel pipes are:
1. During the transportation process, it is necessary to pay attention to the collision between the pipes. If the collision is serious, the coating will fall off, and the life of the product will be greatly reduced once the coating is detached. Pay attention to when you enter the construction site to unload the goods.
2. In the construction, there are many connections and cutoffs. If it is necessary to cut, the truncated pipe needs alveolar or ferrule. At this time, the repaired liquid can be used to repair the damaged coating. If welding is used, double Metal welding or welding with non-damaged weldments can prevent damage to the anti-corrosion coating and thus ensure the service life of the pipeline.
3. The buried pipeline is recommended to be welded and welded. The welding is first made of stainless steel electrode, and then the outer layer is welded by electric welding until the two pipes are perfectly butt welded. If the cable is worn, it is directly used for socketing. Convenient; if it is a flange or a groove, the screw must be tightened by the force rod.
4. In addition, the factory goods should have various regulations, sanitary performance test report, product manual, manufacturer qualification documents and quality assurance.
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