?Fixed shaft ball valve is commonly used on natural gas pipelines, and its general inspection method is: turn the valve to the fully open or fully closed position, and check whether there is leakage through the discharge of the valve body drain nozzle.
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?Ball valve has many kinds of structure, but basically the same little difference, are the opening and closing parts for the round ball core, mainly by the valve seat, ball, sealing ring
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In the thermal system, the thermal trap plays a very important role, and its performance directly affects the stability and energy efficiency of the steam system.
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?Gate valves usually have single gate, double gate, wedge, parallel and other structural designs
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The sealing performance of the valve directly affects the control effect of the fluid medium and the safe operation of the system, the grinding of the valve sealing surface is one of the important means to ensure its sealing performance
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?Sealing surface is the most critical working face of the valve, the quality of the sealing surface directly affects the service life of the valve, and the material of the sealing surface is an important factor to ensure the quality of the sealing surface.
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The electric actuator of valve ? is used to control the valve. If the valve cannot be opened and closed due to some factors, such as power failure, failure of the
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Pressure valve is a device used in hydraulic system to control and regulate liquid flow pressure.
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