The pneumatic - valve results in detecting element forces

Pneumatic control valve medium on the detecting element to create a force with preset spring pre-tightening force balance. When the tank pressure rise to higher than that of nitrogen discharge device pressure set point, the balance is broken, the valve core is up, open the valve and discharge nitrogen to the world; When the tank pressure to release nitrogen pressure set point, because of the preset spring force, close the valve. Pneumatic valve and valve general, the executing agency. If by their ticket enforcement agencies use the power, pneumatic control valve pneumatic control valve can be divided into pneumatic, electric pneumatic control valve, hydraulic pneumatic regulator three, in addition, according to its function and feature points of linear features, such as percentage and parabolic characteristics of three