V electric adjusting ball pneumatic valve regulating function

V electric regulating pneumatic ball valve, pneumatic valve seat is a core using metal, or metal for ptfe seal with the rotation of the pneumatic valve, it will be the ball the best control characteristics of pneumatic valve and butterfly valve combined into an organic whole, both can be used as a control, pneumatic valve, pneumatic valve can be shut off again cut off. Its main features are:
( ） Without the integral pneumatic pipe body, so is not affected by pipeline or bolt stress, and because no pipe pneumatic valve body, so the pressure hull would not be affected by pressure 'mutation';
（ ） Has a V pneumatic valve body, even if in the case of small flow rate or high viscosity media, can also be within the scope of the whole range, ensure the control accuracy;
（ ） Leak proof and durable pneumatic seat at the outer diameter of PTFE lined with stainless steel inner core cup or type O sealing ring, pneumatic seat made from cross section larger cobalt tungsten carbide, by a corrugated alloy spring to further enhance the structure of the pneumatic valve seat;
（ ） When the pneumatic valve closing, v-notch with pneumatic seat wedge shearing action, and both have the function of self-cleaning and can prevent the ball core is stuck, especially suitable for the pipeline scaling or containing fibers and particles frozen solid.
is suitable for high viscosity, slurry, pulp is not clean, fiber media such occasion. Adopt direct way to connect with the actuator, with compact structure, small size, light weight, small resistance, the advantages of stable and reliable. According to user requirements with electronic electric actuator or GTX, AL pneumatic actuator piston type actuators. Adjust the pneumatic valve for regulating the flow of medium, pressure and liquid level. According to adjust the position signal, the automatic control of pneumatic valve opening, so as to achieve the adjustment of the medium flow rate, pressure and liquid level. Regulating pneumatic valve points electric pneumatic valve, pneumatic regulating pneumatic valve and hydraulic pneumatic valve, etc. Adjust the pneumatic valve consists of electric actuators or pneumatic actuators and regulating pneumatic valve in two parts. Adjustment is usually divided into direct single seat type and direct two-seater type two kinds, the latter has a large flow capacity, unbalanced and the characteristics of stable operation, so often especially suitable for large flow, little pressure drop and leakage.
adjust the flow characteristic of pneumatic valve, pneumatic valve is in both ends of the pressure difference under the condition of constant, the medium flows through adjusting the relative flow pneumatic valve and the relationship between its opening. Adjust the flow characteristic has a linear characteristic of pneumatic valve, such as the percentage and parabolic characteristics of three. The meaning of three kinds of injection flow characteristic is as follows:
) Such as percentage of features, Logarithmic) Percentage, such as characteristics of relative trip and no linear relationship between relative flow in the process of every point unit running change caused by the flow of change is proportional to the flow of this point, the percentage of the flow rate change is equal. So it has the advantage of traffic hours, changing flow is small, large flow, the flow rate change is big, is also on the different opening, has the same accuracy.
） Linear features, Linear) , linear characteristic of relative and relative flow into a linear relationship. Unit trip caused by the changes in the flow rate change is constant. Large flow, the flow relative changes little, traffic hours, flow relative change is big.
） Parabolic characteristics, flow according to the schedule of two proportional changes, generally with linear and percentage in the middle of the properties, etc.
can be seen from the analysis of the above three kinds of characteristic, its regulation performance, is the optimal with characteristics such as percentage, its regulation stability, good regulation performance. And electric V adjusting flow rate characteristics of pneumatic valve is equal percentage, so has the best adjustment feature. And parabolic characteristics than the linear characteristic of regulating performance is good, can according to the requirement of the application, choose any of them a flow characteristic.