Big plastic lining

The main properties are as follows:

1, green environmental protection and energy conservation: first, the process of making plastic pipes is harmless to the environment.

2, strong corrosion resistance: through various chemical environmental testing shows that its chemical stability is good.

3, low roughness pipe wall: SLPS pipe and SLPPS pipe wall is very smooth, roughness is very small, increased flow; strong adhesion, pipe is not enough to scale, sediment is difficult to adhere.

The connection and anticorrosion at the joint of big and small plastic-lined pipes are the bottleneck restricting the popularization and application of plastic-lined pipes. The external patching methods such as wrapping plastic corrosion-proof belt, shrinkage belt and flame spraying method, and the internal patching methods such as thread connection, groove connection, flange connection, sliding-in interface and lining short pipe welding are more practical. The filling technology is only suitable for long-distance straight pipeline, and the equipment is complex; memory alloy material internal filling technology, high cost, less application. As long as we pay attention to the quality of the coating and the strict operation rules, the quality of the coating is reliable.

High pressure, good mechanical properties of steel pipe: Plastic lined steel pipe continues the advantages of steel pipe, good mechanical strength and compressive performance, can meet the shallow buried road, River crossing, overload and other special requirements.

Excellent corrosion resistance: Plastic-lined steel pipes have the dual advantages of steel pipes and plastic pipes. Plastic coatings have strong acid and alkali resistance, soil corrosion resistance and weather resistance, which can greatly improve the service life of products.

Good electrical insulation: Polyethylene dielectric properties and physical properties remain unchanged under immersion conditions, and its electrical insulation performance can be compared with any known material.

Good weathering resistance: through adding modified filler to polyethylene powder, the film has good aging resistance, ultraviolet radiation resistance, environmental stress cracking resistance, and plastic-lined steel pipe is suitable for open-air laying across the river bridge.

Low temperature resistance, high temperature performance: plastic-lined steel pipe modified polyethylene coating can be up to 80 ~ 100, low temperature resistance can be up to - 70, steel pipe and coating closely, the use of a wide range of temperature.