Double flange pneumatic ball valve has simple structure, easy assembly and disassembly. What are the advantages of using double flange pneumatic ball valve in large diameter pipelines? The double flange pneumatic ball valve is a valve that is connected by both sides of the pipeline flange, and the pipeline and valve can be connected to the pipeline during installation. It is limited by a loose combination of short sleeve and flange pipe, which can prevent the pipeline from leakage and damage due to excessive compensation of joint displacement. It is mainly to use loose connection settings of pressure pipeline thrust in the range of allowable absorption of axial displacement and axial displacement. The flange connection, installation, product adjustment and flange connection have expansion joints at both ends of the right angle length. Both sides compress the nuts and bolts uniformly, and then adjust the nut limit so that we can let the stretch amount of the inner pipe be free and flexible, lock the expansion amount, and ensure the safe operation of the pipe.
The double flange pneumatic ball valve has the advantages of simple structure, simple assembly and disassembly, and can compensate the displacement, deflection and dislocation caused by thermal expansion and cold contraction of the pipeline. It is widely used in the connection of pipelines transporting water, oil, gas and granular powder media on ships and land. Its types are limited expansion joints, pneumatic ball valves, split expansion joints, spherical joints, etc. The use of pneumatic ball valve has indeed brought great convenience to the installation and use of pipeline engineering. As far as the medium transmission mode is concerned, pneumatic ball valves are often used on pressure pipelines, so there are high requirements for the sealing performance of their materials. At present, products often use high-quality sealing rings to solve this problem. However, for the pneumatic ball valve, because it needs to ensure the displacement adjustment caused by the thermal expansion and cold contraction of the pipeline, the free expansion and contraction amount is often designed, and the sealing performance of the pneumatic ball valve can still be maintained within its effective expansion and contraction range, but it also brings the strictness of the pipeline and installation requirements connected with it.
The pneumatic ball valve for large-diameter pipeline shows no obvious performance in some small displacement of thermal expansion and cold contraction during normal use. However, when the pipeline is used under special circumstances, the installation position of the pneumatic ball valve for the pipeline is different, and the effect is often different. The service life of the double flange pneumatic ball valve produced by Hengchang Pipeline is relatively long in the same industry. Generally, when the product leaves the factory, our company will spray a layer of high-quality corrosion and wear resistant coating on the outside of the product to protect the pipeline from loss as a surface protective layer. Because of its good wear resistance and corrosion resistance, the double flange pneumatic ball valve product has been repeatedly installed and used by mine pipelines, sewage treatment pipelines, desulfurization and dust removal pipelines, and powder and slurry transportation pipelines.