Advantages and characteristics of electric butterfly valve:
1. Variable selection of butterfly valve height, bearing capacity and butterfly valve stiffness:
When used, butterfly valve height, bearing capacity and butterfly valve stiffness can be selected independently from each other and in a wide range to obtain extremely soft butterfly valve characteristics.
Height of butterfly valve: height control valve can be used to properly control the height of electric butterfly valve according to the use requirements, and maintain a certain height when the load on the spring changes.
Bearing capacity: for electric butterfly valves of the same size, different bearing capacity can be obtained by changing the internal pressure, which is roughly proportional to the internal pressure. This enables the same electric butterfly valve to adapt to multiple load requirements.
Stiffness of butterfly valve: when designing the rigidity of electric butterfly valve, it can be selected by changing the internal pressure of the butterfly valve. The rigidity is roughly proportional to the internal pressure. Therefore, the rigidity can be selected very low as required. For an electric butterfly valve with a given size, the rigidity is variable and changes with the change of load, so the natural vibration frequency is almost constant under any load, Therefore, it can make the supported system have almost constant performance.
2. Low natural vibration frequency
The electric butterfly valve is connected to the additional air chamber, but the natural vibration frequency of the electric butterfly valve device is reduced to 0.5~3Hz. Under any load, the electric butterfly valve can maintain a low and nearly equal vibration frequency.
3. High frequency vibration isolation and good noise isolation effect
The electric butterfly valve is composed of air and has small internal friction, which will not affect the ability to isolate high-frequency vibration due to the inherent vibration of the butterfly valve itself. In addition, the electric butterfly valve has no metal to metal contact, so its noise isolation and anti noise effect are very good.
4. The damping effect of available air
An orifice is added between the electric butterfly valve and the additional air chamber. When the load on the spring vibrates, the air flows through the orifice and loses energy, thus playing a role in vibration attenuation.
5. Long service life
The fatigue resistance of electric butterfly valve is many times better than that of metal butterfly valve. For the fatigue test of the butterfly valve in the suspension system of the vehicle's electric butterfly valve, the steel plate butterfly valve was broken after only hundreds of thousands of times of vibration, while the electric butterfly valve remained intact after 5 million times of vibration at the amplitude of 40mm and the frequency of 2.7Hz (160 times/min).
6. Body structure
The body structure of the electric butterfly valve is soft, so it has a comprehensive vibration isolation effect in axial, transverse and rotary directions.