What role does the fluorine-lined regulating valve play in the regulating system

It can be seen that the lining fluorine regulating valve has an executive element in the system, which acts on the regulated object. According to the control signal value, the actuator changes the input of the automated process. In fact, the signal xm is the regulating factor, in most cases it is the flow (air, steam, water, petrochemicals, etc.). The most commonly used actuator to regulate the flow is the regulating valve.

Secondly, it can be seen that the automation instrument includes a transmitter, a regulator and an actuator. It is connected to the regulated object at two places, that is, it is connected to the actuator at the inlet and connected to the transmitter at the outlet. In automation system design, these two connections complicate the design. The transmitter simply selects from the sample. The choice of regulating valve must be a lot of calculation, but also consider various factors, such as drive mode, structure, process, economy, etc.

pneumatic regulating valve consists of two parts: the actuator and the regulating mechanism (valve). The input of the regulating valve is the signal x from the regulator, generally taking 0.02-0.1MPa pneumatic signal or electric signal, and the output is the flow of the process. Under the action of the pneumatic signal Xc, the valve stem of the actuator moves H (mm), which is also the input of the valve. Stem stroke 1 causes the disc to be in a different position.

causes the medium flow area through the valve to change, resulting in a different flow rate Qv, thus obtaining the relationship between the flow rate through the valve and the input signal Xc. Therefore, in the field of industrial automation process control, the regulating valve is the final control element that changes the process parameters such as medium flow, pressure, temperature, and liquid level by receiving the control signal output by the control unit and using power operation.