Pneumatic valve structure and function

Pneumatic valve connection pneumatic valve type _ _ pneumatic valve structure and function as the industry development needs, the emergence of the pneumatic valve is later than the pneumatic control valve, but its use scope is more and more widely. Because they don't need air supply, install and use more convenient, as long as through gas source and the control signal can work, here small make up to introduce the structure and function of pneumatic valve. Pneumatic valve is the typical appearance of it is made up of two detachable actuator and control valve ( Regulatory agencies) Parts. Upper is actuator, accept output regulator 0 ~ 10 madc or 4 ~ 20 madc signals, and convert them to corresponding linear displacement, a regulating valve at the bottom of the push action, regulating the flow of fluid directly. All kinds of pneumatic valve actuators are basically the same, but the regulator ( Regulatory agencies) Structure by using a lot of different types of conditions, the most commonly used is direct single seat and two straight double seat. Pneumatic valve is by regulating the body of the pneumatic actuators with different industrial field instrument, it takes 4 - regulator output 20 ma or pulse signal, for closed loop control, realize the parameters such as flow, pressure, temperature, liquid level automatic control, and can choose intelligent pneumatic actuators, realize digital transmission, such as DCS, PLC, more intelligent control system. Pneumatic valve air pressure is 220 v and 380 v, pneumatic valve, pneumatic single-seat regulating valve, small pneumatic flow control valve flow characteristics such as percentage, such as linear and fast 3 kinds.