The working principle of electric control pneumatic valve

Electric fine small pneumatic valve adjustment


electric temperature control pneumatic valve





electric adjusting the working principle of pneumatic valve and its related knowledge:


electric temperature control pneumatic valve: a system due to different control objects also need a variety of products are combined to develop its zui better control performance, the product selection should follow four principles in turn is: safety, applicability, reliability and economy.
the pneumatic valve according to the purpose and function of classification is as follows: a. The two pneumatic valve b. Electric adjustment pneumatic valve c. Shunt pneumatic valve d. Cut off the pneumatic valve



electric adjusting flow rate characteristics of pneumatic valve


on both ends of pneumatic valve differential pressure under the condition of constant, medium flows through the electric regulating pneumatic valve relationship between relative flow and its opening. Electric adjusting flow rate characteristics of pneumatic valve has linear features, such as percentage and parabolic characteristics three


electric regulating the function of the pneumatic valve:


electric temperature regulating pneumatic valve is self-reliance type pneumatic valve, does not need additional energy, by adjusting the control set point temperature. When the temperature increases, the closing of the pneumatic proportional valve according to temperature changes.
self-reliance type adjustment of pneumatic control valve consists of a pneumatic valve and a thermostat ( Contains a temperature sensor, a set point adjustment device, a capillary tube, and a piston) Depend on the choice of different temperature, the electric actuators state application. Temperature control pneumatic valve according to the principle of liquid expansion operation, if the temperature on the sensor, will make the liquid filler heat and inflation at the same time, in the work under the action of piston pneumatic valve is closed, the cooling medium at this time. By set point, step by step, can adjust electric two ventilation action valve can be read on the scale. Each thermostat is equipped with an overtemperature protection device.



electric regulating pneumatic valve installation:


electric regulating pneumatic valve is suitable for the installation work piston top at the bottom of the horizontal line. Temperature sensor can be installed in any position, the length must be immersed into the accused of medium.
adjust electric pneumatic valve generally include drive, receive the drive signal ( 0 - 10 v or 4 - 20MA） Adjusted to control the pneumatic valve, can also according to the need of control, intelligent network control system, optimization control to realize remote monitoring.