During the production of soda ash, due to the strong corrosiveness of ammonia water, ammonium bicarbonate is easy to crystallize below 25 ℃. During the operation of the control valve, the inner wall of the valve body is easy to scale, crystallize and scale, resulting in the valve being stuck, inoperative or sluggish, making the system unable to adjust automatically, which has a great impact on production. According to the fault analysis of the regulating valve used in the soda ash production site for many years, the common faults and their causes can be summarized as follows:

1. Pay attention to the installation and positioning of the pneumatic butterfly valve. Where on earth should we install the pneumatic butterfly valve? This must be the first problem that deserves our consideration. Only by paying attention to this part of the problem can we truly ensure the actual effect of the construction. We can see where the pneumatic butterfly valve should be installed and how the space condition of the valve itself is. Then, for this space, combined with the most basic pneumatic butterfly valve model, how to install can make the environment more integrated with the pneumatic butterfly valve.