The classification and principle of the high voltage vacuum pneumatic valve is introduced

is reduced pressure pneumatic valve by adjusting, reduced the inlet pressure to a needed discharge pressure, and to rely on the energy of the medium itself, make the outlet pressure automatically to keep the stability of the pneumatic valve. From fluid mechanics point of view, the reduced pressure pneumatic valve is a throttling element, local resistance to change that by changing the throttling area, change the kinetic energy of the flow velocity and fluid, different pressure loss, so as to achieve the goal of decompression. And then rely on the adjustment of the control and regulation system, pneumatic valve after pressure fluctuations and the spring force balance, make the pneumatic valve after pressure constant within a certain error range.
high pressure is reduced pressure pneumatic valve adopts pneumatic control valve body of the opening of the opening and closing of regulating the flow of medium, the medium pressure is reduced, at the same time with the aid of the role of the pneumatic valve after pressure adjust the opening of open-close part, keep the pneumatic valve after pressure within a certain range, under the condition of the inlet pressure changing, keep the outlet pressure within the scope of the set, protection appliances for production from then on.
high pressure vacuum pneumatic regulating pneumatic valve pneumatic valve is a necessary accessories, main effect is to air pressure decompression and stability to a fixed value, in order to adjust the pneumatic valve to obtain stable gas source power for regulating control.
can be divided into the form of the structure of diaphragm, diaphragm spring, piston, lever and bellows type; According to the pneumatic seat number can be artificial single-seat type and two-seater type; According to the position of the pneumatic disc different can be divided into positive action and reaction type.
high pressure vacuum pneumatic valve after work by the pneumatic valve to control the pressure. When pressure sensor detected instruction pneumatic valve pressure, reduced pressure pneumatic valve pneumatic valve opening decreased; When they tested the vacuum pneumatic valve after pressure decreases, and reduced pressure pneumatic valve pneumatic valve opening, in order to meet the control requirements.
high pressure vacuum pneumatic valve - — The pneumatic valve decompression ratio must be higher than the system to a certain extent value; Even in the maximum or minimum flow, it should also be able to respond to positive action and reaction control signal. The pneumatic control valve should be useful for range selection, namely % and % of maximum flow. Normal is geometric model or geometric characteristics. These types of pneumatic valve itself with proportional control required by the best flow characteristics and flow range.