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The plug valve is a quick opening and closing valve. Plug valves are suitable for multi-channel structures, so one valve can obtain two, three or even four different flow channels. This can simplify the design of the pipeline system, reduce the amount of valves and connecting fittings. Plug valves can be divided into soft seal and hard seal structures according to different sealing materials. 1. L...
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In the process of using the valve, we will encounter various working conditions, such as high temperature and low temperature. In this case, how should we choose the valve? 1. High Temperature Conditions When selecting valves, it is necessary to consider using shell materials and internals materials with high temperature strength, such as austenitic stainless steel valve and bidirectional sta...
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The biggest difference between the ball valve and the butterfly valve is that the opening and closing parts of the butterfly valve are a plate, while the ball valve is a ball. Characteristics of Butterfly Valve: 1. Simple structure, low consumption and low cost, but poor tightness and bearing capacity; 2. Quick opening and closing, small flow resistance; 3. It is suitable for making large diameter...
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At present, the gate valves on the market have a general sealing performance, and the phenomenon of water leakage and rust is common. The soft seal gate valve overcomes this disadvantage. The soft seal gate valve achieves a good sealing effect by making use of the compensation function of the elastic wedge to produce a small amount of elastic deformation. Common Sense of Installation and Maintenan...
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Butterfly valve is a common valve that can be used for regulating performance, and it is widely used in today's valve applications. The most common fault of butterfly valve in use is that the sealing surface is easy to leak. What measures should we take to prevent the butterfly valve from leaking? 1. Ensure the clearance between the sealing surfaces. Since the sealing between the rubber seal ring ...
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The flat gate valve is characterized by small flow resistance. Since the wedge slides on two valve seat surfaces, the flat gate valve is also suitable for fluids with suspended particles. Double block discharge function: When the valve is opened or closed, the medium from upstream and downstream will not leak from the valve cavity, which is convenient for the cavity discharge and leak detection. F...
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