The ball valve is evolved from the plug valve. Its opening and closing part is a sphere, which is opened and closed by rotating the sphere 90 degrees around the stem axis. The difference is that it is a sphere with a circular through hole or passage through its axis. The ratio of the sphere to the channel opening should be such that when the sphere is rotated 90 degrees, there should be a full sphere at the inlet and
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Knife gate valve is also called knife gate valve, knife gate valve, slurry valve and mud valve. Its opening and closing parts are gate plates. The movement direction of the gate plate is perpendicular to the direction of the fluid. The medium is cut off by a knife edge gate which can cut fiber materials. The gate plate has two sealing surfaces. The two sealing surfaces of the most commonly used mode gate valve form w
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The electric control valve is a hydraulically operated valve with a solenoid valve as a guide valve. It is often used for automatic control in water supply and drainage and industrial systems. The control response is accurate and fast, and the pipeline system is remotely opened and closed according to electrical signals to realize remote operation. Can replace gate valve and butterfly valve for large electric operati
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A pneumatic valve is a valve driven by compressed air. When purchasing pneumatic valves, it is only necessary to specify the specifications, types, and working pressures to meet the purchasing requirements. flow. The difference between the pneumatic valve and the solenoid valve is the difference in the signal source. The solenoid valve uses electricity to control the pilot gas to push the valve core to change dire
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The control valve has the characteristics of simple structure and reliable action, but because it is in direct contact with the process medium, its performance directly affects the quality of the system and environmental pollution, so the control valve must be regularly maintained and repaired, especially for harsh and important operating conditions. On occasion, more attention should be paid to maintenance work. Key
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1. Small flow resistance. The medium channel inside the valve body is straight, the medium flows in a straight line, and the flow resistance is small. 2. It is more labor-saving when opening and closing. Compared with the globe valve, because whether it is open or closed, the direction of movement of the gate is perpendicular to the flow direction of the medium. 3. The height is large and the opening and closing ti
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