1、Integral steel frame sealing rubber ring structure
The steel frame sealing rubber ring and the flaring are integrated in the production. The prefabricated steel frame sealing rubber ring will not be twisted, deformed or displaced during the installation process. The socket has large expansion allowance and will not be easily pulled out to leak, which enhances the tightness of the joint and improves the installation quality.
2、High level of hygiene
In line with international standards, it adopts organic tin formula system, which is free of lead salt and heavy metals. It is green and non-toxic, with strong corrosion resistance, smooth inner wall, and will not absorb impurities and breed algae and microorganisms. It not only ensures the safety of drinking water in transportation medium, but also ensures the safety of soil environment.
3、Long service life
The pipe is a solid pipe structure with stable quality and good corrosion resistance. It is not sensitive to biological, physical and chemical interactions. No anti-corrosion treatment is required for pipe laying. The quality life of the mixed material grading is guaranteed to be 50 years, and the expected actual service life can be verified to be 100-150 years.
4、High detection standard
The hydrostatic test of pvc-uh pipe is carried out according to the ring stress of 42 MPa, which is higher than that of PVC-U pipe of 38 MPa. Each pipe leaving the factory is completed online 2 times the nominal pressure of the hydraulic test, higher than the domestic non-metallic pipe 1.5 times the nominal pressure of the hydraulic test requirements.
5、Low construction cost
The pipe has mature super large diameter all plastic pipe fittings, which are easy to install, simple and fast. At the same time, it is not affected by low temperature, dust, rain and snow weather, and the weight is light. The construction site can be socket, installation does not cost water and electricity, labor, machinery cost is low, can be constructed all day, save construction period.
6、Low operating cost
The inner wall of the pipe can keep smooth for a long time, improve the flow rate, reduce the operation resistance, and the head loss per unit length is small, which can effectively reduce the head of the pump and save the operation cost. There are mature repair connectors, which are easy to maintain and greatly reduce the maintenance cost.
7、High seismic performance
The connection adopts socket type, which belongs to flexible design on the whole. In case of pavement settlement and dislocation, it is not easy to cause fracture damage. The pipe has good extensibility, flexibility and compression resistance. If the terrain changes, it can be deflected along the axis, so that it has good seismic resistance.