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Valve knowledge

In fluid piping systems, valves to control the device, its main role is to isolate equipment and pipeline systems, regulate flow, prevent the return of the pressure regulation and excretion.The main technical specifications valveStrength properties of the valve is the valve the ability to withstand the pressure medium.

Valve knowledge

Introduction valve coefficient

1, the valve coefficient introduced,Determination of the valve is usually the valve coefficient, the valve coefficient, also known as valve flow coefficient. When the valve selection for special working conditions, the use of valve technology to determine the valve size, the valve can be stable under the control of process fluid can flow through the need. Valve manufacturers often publish data on all types of valves,

Introduction valve coefficient

Pneumatic valve failure phenomenon and the reasons

Valve graphite asbestos as a filler, the filler should be about three months to add a lubricant to ensure a flexible easy to use control valve. Found filling pressure cap low, should be added fillers, such as found in the dry filler PTFE B sclerosis, should be promptly replaced; should pay attention to the inspection tour of the operation of control valve, check valve position indicator and regulator output is consistent;

Pneumatic valve failure phenomenon and the reasons
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