What is the selection standard of pneumatic butterfly valve?
When the excited frequency of the pneumatic butterfly valve is close to the natural frequency, the vibration will be amplified; Only when the excited frequency is greater than the square root of the natural frequency, can the shock absorber have the effect of reducing vibration. The excitation frequency is usually requested to be 2~3 times greater than the natural frequency in order to obtain a good vibration isolation effect.
Detailed methods include: steel ball valve shock absorber, shock absorber, air ball valve, shock pad, metal shock absorber and various composite shock absorbers.
Appropriate equipment support shall be provided during operation.
The selection of model and quantity shall not only ensure that it can bear the dynamic load of equipment, but also adhere to small vibration transmission coefficient (ratio of transmission force to interference force).
When designing and applying the shock absorber, the following elements must be considered:
(1) It can provide the required amount of vibration reduction;
(2) Able to bear the load of rules;
(5) Meet the requirements of equipment with shock absorber for the weight and volume of shock absorption.
(4) It has certain damping characteristics;
(3) Can withstand the change of temperature and other environmental conditions (temperature, corrosive fluid, etc.)?
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