The double flange electric ball valve has large temperature difference in engineering application. The use of double flange electric ball valve on the pipeline has brought better use effect to customers. As the saying goes, good steel should be used on the blade, and good double flange electric ball valve should also be used on the pipeline equipment, so that the use effect will be better.
After the welding of metal pipes, the constant temperature time of heat treatment of double flange electric ball valve shall be 1h for every 25mm wall thickness, and shall not be less than 15min. The maximum and minimum temperature difference during the constant temperature period shall be less than 65. When the temperature of metal pipeline rises to more than 400, the heating rate of double flange electric ball valve shall not be greater than (205 × 25/ δ）/ h. And shall not be greater than 330/h. After we know the heating rate of the double flange electric ball valve, we will learn about the installation of the double flange electric ball valve in the project construction. First of all, the surface quality of the pipe used to connect with the double flange electric ball valve shall meet the requirements of 5.2.4. The allowable deviation of its outer diameter shall meet the requirements of GB/T8163, GB/T9711.2 and GB/T14976 respectively. Secondly, during the installation of double flange electric ball valve, one end of the electric ball valve should be close to the pipe fixing support, and the other end should be set with a guide support (generally 4 times the pipe outer diameter). The installation method of the double flange electric ball valve is very simple. You can install it according to the instructions, and generally there will be no mistakes. Next, let's talk about that the double flange electric ball valve should take packing measures to solve the problem of large temperature rate change in engineering application. The double flange electric ball valve is a protective measure for connecting the expansion pipe or bellows when the temperature changes greatly. For example, for thermal expansion and contraction solids, although the length of the variation is not large, the object that prevents deformation has great power.
For double flange electric ball valve, it is important to see the packing of double flange electric ball valve, but these packing have many disadvantages. For example, the packing friction of double flange electric ball valve is relatively large. When filling, we should reduce the running speed of double flange electric ball valve to reduce the friction. The packing of double flange electric ball valve is a very important step and a troublesome solution. When filling the double flange electric ball valve in the project, we should first consider the method of reducing friction. Solutions. When filling the double flange electric ball valve in the project, we should first consider the method of reducing friction.