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Structurally Gate valves can rely on medium pressure to tightly close the sealing surface, thereby achieving the effect of no leakage. When opening and closing, the sealing surface of the valve core and valve seat always come into contact and rub against each other, so the sealing surface is prone to wear. When the gate valve is close, the pressure difference between the front and back of the pipe...
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1. Non rising stem gate valve: The stem nut is located inside the valve body and in direct contact with the medium. When opening and closing the gate, rotate the valve stem to achieve this. The advantage of this structure is that the height of the gate valve remains constant, so the installation space is small, making it suitable for gate valves with large diameters or limited installation space. ...
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1. If a water hammer occurs in the steam main pipe, it is necessary to immediately and slowly close the valve, cut off steam flow, and the water hammer may stop. Wait for the water hammer to stop, then slowly open the valve. If the valve is closed and the water hammer still does not stop, it indicates that the wave shaped water hammer is formed due to sudden condensation of steam. When the condens...
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Ball valves are mainly used in pipelines to cut off, distribute, and change the direction of medium flow. The ball valve designed with a V-shaped opening also has good flow regulation function. The opening and closing component of a ball valve is a sphere, which rotates 90 degrees around the axis of the valve stem to achieve the purpose of opening and closing. Ball valves have the advantages of lo...
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Butterfly valve, also known as flap valve, is a simple regulating valve that can be used for switching control of low-pressure pipeline media. Butterfly valve refers to a type of valve in which the closing element (disc or disc) is a disc that rotates around the valve axis to achieve opening and closing. Butterfly valves can be used to control the flow of various types of fluids such as air, water...
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Valves used underground are mainly used in pipeline systems to control the flow, pressure, and direction of fluids. Different types of valves have different functions and uses in underground applications. The following are some common types of valves used underground: Gate Valve: Gate valve is a common type of valve, typically used for fully open or fully closed applications, rather than for regul...
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