The working principle of the instrument valve

Instrument manifoldsvalves: an analog signal conditioner, also known as analog instrumentation valves. It determines the form of controlled object simulation measurement values of the parameters and the deviation of a given value, and adjusted according to certain rules to generate analog output signals to promote the implementation used to eliminate bias, the controlled parameters remain near or predetermined rules change value in a given. In automatic Instrumentation ball valve , the instrument valves are often used to detect the output signal of a comprehensive instrument to achieve the purpose of controlling the production process. The adjustable parameters including temperature, pressure, flow, liquid level, component etc.. Classification of instrument valve instrument valve used in accordance with the energy into pneumatic instrument valves instrument valves and hydraulic valve three types of electric meters; in accordance with the principles and structure can be divided into self instrument valves, instrument valves adjusted base type, simple adjustment instrument valves, unit combination assembly type meter valve and integrated control device. Instrument valve according to regulation and divided into two Instrument Valves instrument valves ratio PI (proportional integral Instrument Valves instrument valves instrument valves), PID (proportional integral derivative controller), feedforward meter valve.