Adjust the pneumatic valve maintenance and maintenance

regulating pneumatic valve is installed directly on the process piping, the conditions of use relatively poor conditions, such as high temperature and high pressure, deep freezing, highly toxic, flammable, explosive, easy penetration, easy to crystallization, corrosive and high viscosity, such as the environment. It is good or bad will directly affect the quality of the system, and thus affect the final product quality and efficiency of the system operation. If the selection or improper maintenance, improper problems occur. Some adjusting circuit, for example, how to also stability is bad, always oscillation, if on the selection of improved, change the linear characteristic of pneumatic valve core to logarithmic pneumatic valve core or change flow direction, after adjusting quality will be improved; Another example, some adjustment in the process of a sustained oscillation, the reason is not in proportion to the regulator degree is too big or too small, but the pneumatic valve packing dry friction is too large, action is not flexible; Such as again, adjust the pneumatic valve leakage will cause the factory pollution, and even cause an accident. Therefore, should pay attention to adjust the action of the pneumatic valve, strengthen the maintenance and maintenance.