1, overview in urban underground gas pipeline system, the polyethylene ( PE) Pipeline to get more and more applications. As its life and performance of welding, good sealing performance, easy to use simple PE ball valve is as indispensable pipeline control components used and appreciated by more and more. 2, the material choice of polyethylene is a thermoplastic engineering plastic material, have a certain strength, stiffness, toughness, impact resistance, corrosion resistance and abrasion resistance. By controlling the polymerization process and the polymerization with a certain amount of monomer, can adjust or improve the performance of polyethylene material. The polymerization technology of advanced or not directly lead to material performance differences. In order to long-term safe operation of the pipeline network system, gas pipes, pipe fittings and valves must be used according to the special material type classification of pipe material ( PE80 PE100) And mix ingredients, can't use pigment. Material color is black and yellow. 3, type structure polyethylene gas use generally for ball valves, valve can be divided into small polyethylene valve ( Below SD63) And large polyethylene valve ( SD63 above, including SD63) 。 Small polyethylene Industrial Valves generally without tossing in the mouth, large polyethylene valve can be set according to need not, shall have one or have 2 tossing in the mouth. 4, performance characteristics, 1) Corrosion resistance. Polyethylene as inert material, besides a few strong oxidizer, resistant to various chemical media. No electrochemical corrosion, do not need to coating. ( 2) No leakage. Polyethylene pipe connection parts of the valve body and end mainly adopts welding connection ( Hot melt connection or fused connection) , weld width, sealed performance is good. Compared with the rubber ring type joint or other mechanical joint, there is no external leakage risk caused by joint distortion. ( 3) High toughness. Polyethylene is a kind of high toughness of the material, the elongation at break of more than 500% commonly, for jaasiel uneven settlement of the ability to adapt is very strong. Is also a kind of excellent seismic performance of the pipe. ( 4) Long service life. Polyethylene material can be used more than 50 years, this is foreign based on polyethylene pipe hoop tensile strength of the long-term hydrostatic design basis values ( HDB) Sure, international standards have been confirmed. ( 5) Construction is convenient. Polyethylene valve compared with metallic valve quality is light, easy to install. Open and shut easily, the operating torque is small. for full size, small pressure loss. 5, application of high and medium pressure polyethylene pipe head should be set on the segmented polyethylene valve, and shall be installed on both sides of the valve, radiation tube. High and medium pressure polyethylene gas pipe manifold positioned polyethylene valve should be set up, also can be set up unilateral radiation tube. PE ball valve is mainly for the underground medium density polyethylene pipe facilities, transport and blocking all kinds of gas medium flow. This valve can be directly buried in the ground, just install simple sheath, opening and closing parts, can use a special wrench on the ground to perform opening and closing operation, PE ball valve applicable medium for purification of natural gas, liquefied petroleum gas (LPG) conforms to the national standard and the artificial coal gas and so on. 6, epilogue PE ball valve opening and closing torque is small, the valve non-corrosive, does not need maintenance and repair, the service life of 50 years, improve the integrity of the polyethylene pipe network system. Integral body, eliminating the possibility of the leak, PE ball valve with PE pipe connection, do not need to set the valve shaft and construction of directly buried, body side tube can use butt welding or electric welding method, the valve open and close operation on the ground, high comprehensive economic benefits than the traditional metal ball valves about 2 times. Polyethylene pipe with excellent performance, with the further research and development of polyethylene material, polyethylene pipe and valve will have a better application. In this paper, the keyword search: more technical articles pipeline valve product information
Shenzhen Mech Valve Trading Co., Ltd.'s products comply fully with all compatible producing regulations.
Shenzhen Mech Valve Trading Co., Ltd. take prudent risks and work together to assure our success and profitability in the future.
Many of the gate valve listed here can be purchased for less money, but in general we recommend paying a slightly higher price for significantly improved performance. These are our top choices and their recommended configurations.
This is crucial when you need to maintain innovative information in water gate valve.