When selecting electric butterfly valve, we should first understand its characteristics, and then select it through the environment. The characteristics of electric butterfly valve are that its shape can be designed as required, its stiffness can be adjusted, and it provides greater damping ratio, shear resistance, tensile resistance, compression resistance, and easier installation than butterfly valve. Its disadvantages are high natural frequency, short service life, and limited service environment. Generally, the service environment temperature should be controlled between - 30-70 ℃. For some chemically corrosive environments, electric butterfly valves of appropriate materials should be selected for use.
Suitable for the production of electric butterfly valves are: natural rubber, neoprene rubber, butadiene rubber; The market is full of electric butterfly valves made of recycled rubber, which are hard to handle without butterfly valve performance, nonlinear load compression ratio, rough surface, poor damping effect and easy to aging. Remember to choose carefully and avoid purchasing such electric butterfly valves.
Application scope of electric butterfly valve: First, the vibration source belongs to vibration isolation and noise control of high-frequency rotating mechanical equipment. For example, when the rotating frequency of mechanical equipment such as fans, water pumps, generator sets, air conditioning hosts, etc. should be greater than 1000 revolutions, electric butterfly valves should be used; 2、 The impact frequency of stamping equipment should avoid the natural frequency of electric butterfly valve. For example, punch, die-cutting machine, press, etc; 3、 Electric butterfly valves are widely used in automobiles, aerospace and navigation due to their shock absorption function in all directions; 4、 Other mechanical equipment.
At the same time, due to the characteristics of the product itself, there are many occasions where the product industry is very inappropriate. First of all, it will become brittle at minus 30 degrees and lose its own elastic deformation. At this time, it will not have the effect of vibration reduction. Therefore, in a too cold environment, do not use class vibration reduction products to avoid the expected effect. It also cannot withstand high temperature. As long as it exceeds 75 degrees Celsius, its internal structure will change, and its elasticity will completely disappear. Of course, it will no longer have any damping function. If the temperature continues to rise, it may burn up. Therefore, if the electric butterfly valve is used in a very high temperature environment, it will not play the expected damping role, and even may cause accidents.