Advantages and Disadvantages of Plastic Pipe Fitting Materials Plastic pipes fitting materials is high-tech recombination type chemical construction material, and chemical construction material is the fourth new-type building material following with steel material, wood material and cement. Because of plastic pipe fitting materials has small flow loss, energy-saving, material-saving, ecology protection and easy to construct, it is widely used in building water supply and drainage, cities water supply and drainage and gas pipes fitting area, becoming a main force in urban construction.
Advantages of plastic pipes fitting materials
1.Hydraulic characteristic. The plastic pipes fitting material has advantages of smooth pipe wall, low resistance, large water flow amount. When come across gradient terrain, we can reduce plastic pipe fitting’s aperture in smaller construction capacity.
2.Sealing. Cement pipe has worse sealing property, and concrete pipe belongs to rigid pipe, slightly move may damage the connecting part. What’s more, cement pipe is sealed by vulcanized rubber ring, plastic pipes fitting is sealed by TPE sealing ring. Plastic pipes fitting’s service life is longer than cement pipes.
3.Service life and corrosion resistance. Cement pipe’s service life only has 15 years while plastic pipes fitting has a quite long service life of 50-100 years, and plastic pipes fitting has better corrosion resistance than cement pipes.
4.Laying and construction. Plastic pipes fitting has properties of light weight, longer, fewer pipe joints, easy to connect and construct and lower construction cost.
Disadvantages of plastic pipe fitting materials
1.Worse tensile strength and tenacity. Fine UPVC pipe’s has larger ductility, while worse plastic pipe fitting materials always has brittleness and low ductility, that is easy to breakage.
2.Worse shock resistance. Testing falling weight impact according to GB/T5836.1－92 standard, we found that the first time pass rate of plastic pipe fitting materials is lower than 50%.
3.Lower softening temperature and easy to thermal deformation. In order to enhance softening temperature, some manufacturers just simply increase the feeding amount, this does have beneficial for increasing softening temperature, but it greatly reduce the impact resistance, tensile strength and tenacity of plastic pipe fitting materials at the same time.