How to choose rubber pneumatic butterfly valve?
What aspects should we pay attention to when purchasing rubber pneumatic butterfly valves? First of all, fully understand the performance characteristics of pneumatic butterfly valve, and choose according to the different application environment. Rubber is very flexible and light. It is better to use rubber shock absorption products, such as high-speed rotating rotors, to avoid imbalance in the environment where weight needs attention.
The damping spring pneumatic butterfly valve itself has incomparable sealing performance, and no matter how tight it is, it is only elastic deformation, and its own volume has almost no change. Assuming that in the hydraulic environment, it is necessary to not only play a role in vibration reduction, but also seal to prevent the liquid from overflowing, such a place must be the only one, and there is no better choice. Rubber is also corrosion resistant. Assuming that in some severe corrosive environments, such as the consumer workshops of many chemical plants, it is better to use rubber shock absorbers if the central demand for shock absorbers.
Due to the characteristics of the product itself, rubber shock absorption products are not suitable for many places. The rubber will become brittle at minus 30 degrees and lose its own elastic deformation. At this time, it will not play a role in vibration reduction. Therefore, rubber vibration reduction products cannot be used in too cold environment. In addition, rubber can not withstand high temperatures. Just exceed 75 degrees Celsius, its internal structure will change, and its elasticity will disappear intact. Of course, it will no longer have any vibration damping function. If the temperature continues to rise, it may be extinguished. When purchasing pneumatic butterfly valves, it is necessary to tailor them to suit your needs and select appropriate pneumatic butterfly valves.

1. The wafer type pneumatic butterfly valve cannot change direction or the change direction action is slow, which is generally caused by poor lubrication, the spring is stuck or damaged, and the sliding part is stuck by oil or impurities. For this, check whether the oil mist atomizer works normally; Whether the viscosity of lubricating oil is proper. If necessary, replace the lubricating oil, clean the sliding part of the wafer type pneumatic butterfly valve, or replace the spring and the wafer type pneumatic butterfly valve.