Introduction to PID regulator
At present, the level of industrial automation has become an important indicator to measure the level of modernization in all walks of life. At the same time, the development of control theory has also experienced three stages: classical control theory, modern control theory and energy control theory. A typical example of intelligent control is a fuzzy fully automatic washing machine or the like. The automatic control system can be divided into an open loop control system and a closed loop control system. A control system includes a controller, a sensor, a transmitter, an actuator, and an input and output interface. The output of the controller is added to the controlled system through the output interface and the actuator; the controlled quantity of the control system is sent to the controller through the input interface through the sensor and the transmitter.
Sleeved plug valves are used for on/off and throttling service in corrosion process with media temperature , such as chemical industry, Sleeved plug valves are non-lubricated valvequarter turn valve that achieve sealing through the use of a compressible sleeve as a sealing member. The valve size is from 1/2" to 30" with matching valve pressure from class 150 to class 600. Valve material can be carbon steel, stainless steel, allou steel, duplex steel etc.
Sleeved Plug Valve,Manual Standard Plug Valve,Soft Seal Sleeved Plug Valve,Stainless Steel Plug Valve
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