And the information of pneumatic control valve

Pneumatic control valve, and the information of common control circuit includes three main parts. Pneumatic - valve to control valve series, the main function is to regulate the medium parameters such as pressure, flow, temperature, is the final control element in process loop. Common control circuit includes three main parts, the first part is the sensitive element, it is usually a transmitter. It is a device used to measure the modulated process parameters, the parameters such as pressure, level, or temperature. The output of the transducer are sent to the adjusting instrument & ndash; — Regulator, it determines or expectations and the process parameters and to measure a given value deviation between the actual value, one by one, the correction signal is sent out to final control element & ndash; — Pneumatic control valve. Valve to change the flow of the fluid, the process parameters to achieve the expectations.