In order to ensure reliable quality of pneumatic valve operation and 2)

in order to ensure reliable operation control pneumatic valve, pneumatic control valve itself here not only refers to the manufacturing quality, but also correct the pneumatic control valve, pneumatic control valve selection, including the operating personnel training and quality. , in order to prevent wrong operation, technology personnel must pay attention to the notes on the nameplate of the problem, according to the new standard of China, the new pneumatic air control valve ( GB / T - ) Actuator of the plates, at least to mark manufacturer name, model number, rated flow coefficient, the design of a number, product quantity and the production of other items for one year; , the body will have to cast or the medium flow direction arrow and 'DN' value with the words 'fake' and values, you can firmly fixed on the nameplate of the body. , it is important to get enough control pneumatic valve accessories, such as pneumatic valve positioner, limit switch, etc. , well-equipped. There must be installed and space, daylighting enough operation has enough space, there are strict rules. , in order to ensure that the quality control of pneumatic valves, pneumatic control valve is calculated through the correct choice: ( ) , type, diameter, it is necessary to meet performance requirements; （ ) , an important part of the pneumatic valve materials selected varieties; （ ) , have sufficient strength and rigidity, through the test, air tightness test pressure according to the national standard; （ ) Manufacturing technology and detection methods of production enterprises must comply with certain, subject to approval by the competent department of the standard.