Pneumatic control valve is how to classify?

Pneumatic - valve applicable scope is very broad, and there is another title: control valve, especially in the field of industrial automation process control by value, by accepting conditioning control unit of the output control signal, from engine operation to change the medium flow rate, pressure, temperature, liquid level of the process parameters such as the final control element. And valve general, the executing agency. If the trip characteristics of pneumatic control valve can be divided into straight stroke and stroke; By their ticket enforcement agencies use the power, pneumatic control valve can be divided into pneumatic, electric pneumatic control valve, hydraulic pneumatic - valve three; According to its functions and features are divided into linear features, such as percentage and parabolic characteristics of three. Pneumatic control valve applied to air, water, steam, all kinds of corrosive medium, mud, oil, etc. English name: the control valve, a number usually FV beginning. Pneumatic pneumatic control valve, pneumatic control valve commonly used classification: electric pneumatic control valve, hydraulic pneumatic valve, self-reliance type pneumatic control valve. Pneumatic control valve is how to classify? Pneumatic control valve according to the trip characteristics can be divided into: straight stroke and stroke. Straight travel include: single-seat valves, two-seat valves, sleeve valve, cage valve, Angle valve, three-way valve, diaphragm valve; Quarter-turn include: butterfly valve, ball valve, eccentric rotary valve, fully functional ultralight pneumatic control valve. Pneumatic - valve drive mode can be divided into: according to the manual pneumatic control valve, pneumatic control valve of pneumatic and electric pneumatic control valve and hydraulic pneumatic control valve, namely to compressed air to power sources pneumatic pneumatic control valve, based on electric power sources of electric pneumatic regulator, as a liquid medium ( Such as oil, etc. ) Pressure for hydraulic pneumatic control valve; By adjusting the form can be divided into: external regulation regulation, cut, cut type; According to the flow characteristic can be divided into: linear and logarithmic type ( The percentage) , parabola, quick opening.