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1. Application of Knife Gate Valve 1. Mining, iron and steel industry: used for coal, slag slurry, etc; 2. Purification device: used for waste water, mud, dirt and clarified water with suspended solids; 3. Paper industry: used for pulp and feed water mixture of any concentration; 4. Ash removal of power station: used for ash slurry. 2. Performance of Knife Gate Valve 1. Local and remote control, r...
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Today, Dervos takes you to know which components of soft seal gate valve are prone to leakage and how to prevent and remedy it well. 1.Leakage at Gate Valve Connection First, we should check whether the connecting bolts between gate valves are tightened, ensure that the sealing gasket ring in it is fully combined with the flange sealing groove surface. Secondly, if leakage has occurred, please do ...
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What are the main reasons for the damage of the sealing surface of the high-pressure ball valve during its use? Let Dervos introduce it to you! 1. Mechanical Damage During the opening and closing process, the sealing surface will be scratched, bumped, squeezed and other damages. The atoms between the two sealing surfaces penetrate each other under the action of high pressure, resulting in ad...
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Full welded ball valve is a typical narrow gap submerged arc welding product, which involves the knowledge of materials, welding technology, automatic development of welding equipment and design of pipeline ball valve. The valve seat of full welded ball valve is composed of carbonized Teflon sealing ring and butterfly spring, so it has strong adaptability to pressure and temperature changes. Appli...
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Soft seal gate valves are usually used as industrial valves. The deformation compensation function is generated by the overall rubber coating of the gate, which achieves good sealing effect, overcomes the problems of poor sealing, water leakage and rust of general gate valves, saves installation space more effectively. Advantages of Soft Seal Gate Valve: (1) Low fluid resistance The medium c...
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The one-piece ball valve is a wide-ranging ball valve, which is a ball valve composed of an integral one-piece valve body connected with a small bore internal thread. It is commonly used in some high-pressure working conditions requiring quick opening and closing or working conditions of toxic media. The two-piece ball valve is fixed by the two-piece valve body, which is easier to disassemble than...
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