The electric butterfly valve and the tension spring electric butterfly valve are two different electric butterfly valves, and they are quite different, but their role is to reduce vibration. So when selecting the electric butterfly valve,
Many people do not know whether to buy electric butterfly valve or tension spring electric butterfly valve. In fact, first of all, we should understand the difference between the two to know their detailed use.
Characteristics of electric butterfly valve:
1. High elasticity and viscoelasticity;
2. Compared with steel raw materials, the elastic deformation is very large and the elastic modulus is very small;
3. The impact stiffness of is greater than the dynamic stiffness, and the dynamic stiffness is greater than the static stiffness, which is conducive to reducing the impact deformation and dynamic deformation;
4. The stress-strain curve is an elliptical hysteresis line, and its area is equal to the vibration energy (damping) converted into heat in each period of sensation, which can be adjusted through formula planning; 　　
5. Non compressibility data (Poisson's ratio is 0.5); 　　
6. The shape can be selected freely, the hardness can be adjusted through formula planning, and the requirements of stiffness and strength in different directions can be satisfied;
7. Its natural frequency is difficult to reach below 5HZ;
8. Its ability to resist environmental and high temperature changes is weak, and its life span is short;
9. No sliding part, easy to maintain.
Characteristics of tension spring electric butterfly valve:
1. Low frequency planning, good vibration isolation;
2. It has strong adaptability to the operating environment and can operate normally at - 40 ℃ - 110 ℃. It plays a significant role in active vibration isolation, passive vibration isolation, shock oscillation and solid sound transmission;
3. Wide load scale and strong adaptability.