What are regulating pneumatic valve type and composition

regulating pneumatic valve, pneumatic valve, also known as control is the main type of actuator, by accepting conditioning control unit of the output control signal, from engine operation to change fluid flow. Adjust the pneumatic valve generally consists of actuators and pneumatic valves. If by their ticket enforcement agencies use the power, adjust the pneumatic valve can be divided into pneumatic, electrical, fluid movement three, namely to compressed air to power sources pneumatic valve, pneumatic control for electric power sources of electric control pneumatic valve, as a liquid medium ( Such as oil pressure as the power of electric hydraulic pneumatic control valve, in addition, according to its function and feature points, and electromagnetic pneumatic valves, electronic style, smart, the scene of general linear pneumatic valve adjustment. Regulate many structure also many types of pneumatic valve products, but also in constant updates and changes. In general pneumatic valve is common, can match with pneumatic operation organ, also can match with electric actuators or other actuators.

to adjust the choice of pneumatic valve type

regulating pneumatic valve pneumatic valve type selection of pneumatic valve selection is the most important role in regulating pneumatic valve selection.

regulating pneumatic valve pneumatic valve body is a lot of more phyletic, commonly used is through single-seat, pass-through two-seater, angular, diaphragm, small flow rate, tee, eccentric rotating, butterfly, sleeve, spherical, etc. Before you choose pneumatic valve, to control the process of medium, the careful analysis of process conditions and parameters, collect enough data to understand the system to adjust the requirement of pneumatic valve, according to the collected data to determine the pneumatic valve type to be used. In specific choices, can consider from the following aspects:

( Pneumatic valve core shape structure mainly based on the selected flow characteristic and factors such as unbalanced force.
　　
　　( Wear resistance when fluid medium is suspending liquid containing high concentrations of wear particles, pneumatic valve, pneumatic valve seat joint friction surface every time shut down severely. Pneumatic control valve flow is smooth, the interior of the pneumatic valve material is hard.
　　
　　( Corrosion resistance due to the corrosive medium, in the case of can satisfy regulating function, try to choose simple structure of pneumatic valve.
　　
　　( Medium temperature, pressure, when the medium temperature, high pressure and large, should choose pneumatic valve core and pneumatic valve seat materials by temperature, pressure changes small pneumatic valves.
　　
　　( Prevent flash flash and cavitation and cavitation produced only in a liquid medium. In the process of practical production, flash and cavitation effect not only the calculation of flow coefficient, still can form the vibration and noise, make the pneumatic valve life is short, so should prevent when choosing pneumatic valve pneumatic valve produce flash and cavitation.