For the overall control of electric valve, should pay attention to choose the control mode of electric valve. For example, according to the project needs, whether the use of centralized control, or a single control mode, whether with other equipment linkage, order control or application of computer order control, etc., its control principle is different. Valve Electric Equipment Manufacturers sample is only the standard electrical control principle, so the application department should be with the electric device consumption plant technical disclosure, clear technical requirements.
Ball valve, defined in standard GB/T21465-2008 "valve terminology" as a valve driven by the stem and rotated around the axis of the stem. It is mainly used to cut off or connect the medium in the pipeline, and can also be used for the adjustment and control of fluid.
Ball valve and plug valve are the same type of valve, only its closure is a sphere, the sphere rotates around the centerline of the valve body to open and close. The ball valve is mainly used to cut off, distribute and change the flow direction of the medium in the pipeline. Ball valve is a new type of valve which has been widely used in recent years.
Stainless steel ball valve working principle is to rotate the spool to make the valve open or blocked, the ball valve body can be integral, can also be combined.?The following is to introduce you to the stainless steel ball valve related knowledge.?
Preparation before installation. (1) the front and rear lines of the ball valve are ready. The front and rear pipes should be coaxial and the two flange cover should be parallel. The pipe should be able to bear the weight of the ball valve, otherwise the pipe must be properly supported.
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