Manufacturer of fluorine lined check valve discusses the significance of three injection characteristics of electric regulating valve flow

check valve The manufacturer explains the significance of the three injection characteristics of the electric control valve flow as follows:

(1) The relative stroke and relative flow rate of equal percentage characteristics (logarithmic) are not linearly related. The change in flow rate caused by the change in unit stroke at each point of the stroke is proportional to the flow rate at that point, Fluorine lined DC globe valve The percentage change in traffic is equal. So its advantage is that when the flow rate is small, the flow rate change is small, and when the flow rate is large, the flow rate change is large, which means it has the same adjustment accuracy at different opening degrees.

(2) The relative stroke and relative flow rate of linear characteristics are linearly related. clamp-on Fluorine-lined Butterfly Valve The flow changes caused by changes in unit travel are constant. When the traffic is high, the relative value of the traffic changes slightly, while when the traffic is low, the relative value of the traffic changes greatly.

(3) The parabolic characteristic flow rate varies proportionally with the two sides of the stroke, and generally has intermediate characteristics of linear and equal percentage characteristics. From the analysis of the above three characteristics, it can be seen that in terms of its regulation performance, equal percentage s-bit rate is the better, PTFE lined valve It has stable regulation and good regulation performance. The parabolic characteristic has better regulation performance than the linear characteristic, and any flow characteristic can be selected according to the requirements of different usage scenarios.

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