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PE Pipe Fitting Mould Standards And Technical Regulations
- Jun 26, 2017 -

China's research on polyethylene pipe began at the end of the twentieth century. PE Pipe Fitting Mould By the Scientific Committee as a key scientific and technological projects. Respectively, from the raw materials, processing, application of their own standards and other aspects of the relevant achievements. At the end of the twentieth century, China has really introduced the relevant standards and technical regulations for polyethylene materials for gas transportation.

Compared with the ordinary pipe, PE material advantage is more obvious, first of all, PE Pipe Fitting Mould its material low temperature tolerance is good, and has a strong flexibility, pipe strength is relatively high. So it can be applied in some special industries, because the traditional steel corrosion resistance is low and poor sealing performance, and polyethylene material greatly solve the problem, and the cost is more low. PE Pipe Fitting Mould In addition, because the polyethylene material is relatively high flexibility, strong corrosion resistance, which can be used in corrosive soil, mountain, earthquake and so on. Can bring huge economic benefits, PE Pipe Fitting Mould to analyze its advantages, including the following points.

2.1 Corrosion resistance. As the chemical properties of polyethylene materials are inert, and therefore should not be associated with other substances chemical reaction, PE Pipe Fitting Mould that is difficult to be eroded by chemical media. Thus, no coating is required during the application.

2.2 will not produce a leak. As the material pipe connection with the form of welding, which can ensure that the interface material with the pipe structure is consistent, making the interface with the integration characteristics. Through the tensile test at the interface and the blasting test, PE Pipe Fitting Mould it can be seen that the performance at the interface is higher than that of the pipe itself, and it has good resistance to the pressure inside the pipe and the axial tension, so there is no distortion caused by the joint Gas leak.

2.3 high toughness. Based on the properties of polyethylene materials, polyethylene tubing has high toughness characteristics, the elongation at break than other materials larger, PE Pipe Fitting Mould generally greater than 50%. And thus can adapt to the basic settlement of the uneven environment, and better adaptability in the seismic adaptability.

2.4 strong scratch resistance. Most of the gas pipeline laying the use of slotted construction, and thus in the construction process of scratches caused by scratches can not be avoided.

But scratches can lead to stress concentration, which causes damage to the pipeline. Polyethylene pipe PE80 grade above the polyethylene material, in the anti-scratch ability is extremely prominent, and the higher the level, the stronger the scratch resistance.

2.5 strong flexibility. As an important feature of polyethylene materials, excellent flexibility makes PE pipe in the gas pipeline transportation project more valuable. Unlike other materials, PE Pipe Fitting Mould polyethylene tubing can be coiled, can be long-distance supply, and no need to connect pipe.

2.6 longer service life. General PE material has 50 years of service life, which is mainly based on the characteristics of the pipe and the design basis to be determined.

In accordance with the differences in construction methods, PE Pipe Fitting Mould polyethylene pipe fittings in the application can be divided into hot melt fittings and capacitor tube two. And in accordance with the differences in the production of pipe fittings can be divided into dry pipe fittings and plastic pipe fittings two. Most of the pipe fittings can be molded by injection molding. However, PE Pipe Fitting Mould if the tube is larger, the weight and the volume is relatively large, then the manufacturing process can be used in the way of welding manufacturing. Welded pipe fittings are mainly elbow, tee and Stone, pipe fittings are enlarged size. General elbow, flange, diameter tee and reducer tee, variable diameter and end caps are made using injection molding. In addition, most of the financial pipe fittings are also used to manufacture the way injection.

The life of the polyethylene ball valve is the same as that of the pipe for 50 years and its working pressure is matched with the pipe. Just use a special wrench, you can complete the construction site in the road to close the valve. And only the same specifications of the wrench will be able to complete the different specifications of the valve opening and closing. Valve structure in accordance with its different forms can be divided into reduced diameter valves and diameter ball valve, both in the diameter specifications are basically the same, and it should be noted that the diameter of the diameter of the ball valve to match the smaller than the pipe. PE Pipe Fitting Mould Diameter ball valve in the gas transmission than the diameter of the ball to be larger. While the size of the reduced diameter ball valve is more advantages, the price cost is relatively low.