What are the logistics characteristics of rubber pneumatic butterfly valve??
What are the logistics characteristics of rubber pneumatic butterfly valve? Our answer to the customer's question is that it has damping effect on vibration. Rubber has great linear flexibility and is an ideal shock absorption material. It can almost be stretched to split without losing its elasticity, and can accept alternating stress without fatigue. Like water, rubber is almost non contractible, and only elastic deformation occurs after compression, but its volume remains unchanged.
The elasticity of rubber is significantly reduced when the temperature is below - 30 ℃. Therefore, rubber pneumatic butterfly valve should not work in severe cold conditions; At the same time, rubber is not resistant to high temperature, and its working temperature should not exceed 75-80 ℃ for pneumatic butterfly valves.
Their natural vibration frequencies are different. The compressive strength of rubber is much greater than the tensile strength. The stretching length of rubber is generally 6 times larger than the tightening distance. When the rubber is stretched or compressed.
That is, the deformation of rubber increases rapidly within about 20 minutes after being compressed (about 25%, that is, the deformation ratio is 1.25; later, the rubber has "elastic aftereffect". The deformation is very slow, and it will increase to about 50% after about 15 days.
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① The flow regulator (flow rectifier) is a pipe fitting consisting of a perforated plate placed in the pipe or a smaller tube bundle (or grid plate), which is used to reduce (or eliminate) vortices and improve the distortion of velocity distribution, so as to shorten the length of straight pipe section.