The most important part of the electric butterfly valve of the butterfly valve is the butterfly valve. The proper butterfly valve of good quality will have a damping effect, and will be elastic and durable, and have a long service life. If the butterfly valve is not well prepared, then the entire electric butterfly valve will be scrapped. So what is a good way to purchase butterfly valves? Now let me tell you.
Firstly, the butterfly valve shall meet the following conditions: the radius of the butterfly valve shall be four times greater than the zero point of its height under the rated load; The butterfly valve shall have a certain additional stroke, at least equal to 50% of the rated static deflection; The number of butterfly valve coils shall not be too small, generally not less than six; The butterfly valve manufactured in this way can ensure that the horizontal rigidity of the electric butterfly valve is enough so that the equipment is stable and not prone to toppling, the elasticity is durable, and the lasting vibration reduction capacity is guaranteed. However, the price of the electric butterfly valve of this kind of butterfly valve is often higher.
Reasonable selection shall be made according to the weight of the equipment. Generally, the compression capacity of the butterfly valve behind the pressure bearing equipment of the electric butterfly valve of the butterfly valve shall be more than 20mm, not more than the rated compression capacity of the electric butterfly valve, so as to ensure that the electric butterfly valve can play a better role in vibration isolation.
What needs to be mentioned is that at present, a popular electric butterfly valve of butterfly valve is on the market. It completely hides the butterfly valve inside the shell, and the state of the butterfly valve cannot be seen intuitively outside, which is incorrect! Because, after using this kind of valve for a period of time, if the butterfly valve is seriously rusted, the manager cannot detect and replace it in time, which may lead to the terrible consequences of butterfly valve breaking, water pump sinking and pipeline breaking. Although the price of this kind of electric butterfly valve is slightly lower, it should not be used as far as possible
The electric butterfly valve of the butterfly valve has a very low frequency. It is used for high-frequency vibration equipment. The vibration isolation effect is very good, and the structure is compact, but the size and shape are not very large. This makes it more convenient to install and reliable and safe to use. Although the shape is relatively small, the application life is not short. The electric butterfly valve of butterfly valve has a strong adaptability to work. It can work normally even at minus 40 degrees or minus 110 degrees. This is the working state that ordinary electric butterfly valves cannot reach. Whether it is active vibration isolation, passive vibration isolation or shock vibration, it has a very significant effect and can effectively block the sound transmission of solids. It has achieved ideal results in isolation of vibration, reduction of noise, remediation of vibration pollution and environmental protection. The electric butterfly valve of butterfly valve is mainly used for vibration isolation of various high-frequency changing mechanical equipment such as fans, air conditioning boxes, air conditioning units, generator sets, air compressors, water pumps, cooling towers, etc. Appropriate methods for selecting electric butterfly valve of butterfly valve are as follows:
1. The longitude between the operating frequency of the equipment and the natural frequency of the electric butterfly valve of the butterfly valve should be greater than 3. In this case, the vibration isolation efficiency is guaranteed to be above 85%. When the deflection of the electric butterfly valve of Shanghai Dongfeng Company is 25MM, its natural frequency is 3-4HZ.
2. The surface of shell and butterfly valve shall be treated by baking paint, galvanizing, zinc and aluminum to avoid corrosion of vibration isolator in a short time, and then affect the service life of electric butterfly valve. Try not to use products with painted surface treatment.
3. The horizontal stiffness and vertical stiffness of the butterfly valve shall be greater than or equal to 1, and the ratio between the diameter of the butterfly valve and the height of the butterfly valve after the rated negative pressure shall be greater than 0.7. To ensure the invariance of the horizontal tendency of the electric butterfly valve.
4. The suitable electric butterfly valve shall be selected according to the principle of convenient installation.
The electric butterfly valve of butterfly valve is mainly used for vibration isolation of various high-frequency changing mechanical equipment such as fans, air conditioning boxes, air conditioning units, generator sets, air compressors, water pumps, cooling towers, etc. The low-frequency composite electric butterfly valve, hanging electric butterfly valve and butterfly valve electric butterfly valve are very different.