The difference between pneumatic control valve, butterfly valve and V-ball valve

Pneumatic control valve, butterfly valve and V-ball valve are all common industrial valves, and they have the following differences:

The working principle is different: the pneumatic control valve uses the pneumatic actuator to drive the disc, and controls the flow of the medium through the opening of the control valve, thus realizing the adjustment of the flow; Butterfly valve changes the size of the channel by rotating the valve body to realize the adjustment of medium flow; V-ball valve controls the flow by rotating the ball to make the medium fluid shear and rub with the opening of the valve.

Pneumatic flange V-ball valve

Different scope of application: pneumatic control valves are widely used in flow regulation occasions in chemical industry, metallurgy, electric power, petroleum and other industrial fields; Butterfly valves are usually used in some medium and low pressure large diameter pipelines, such as conveying water, oil, gas, steam and other fluid media; V-ball valves are often used in corrosive or high viscosity situations, such as petroleum, chemical, pharmaceutical, food and other industries.

Different structures: The common structures of pneumatic control valves are linear, angular and lined. The structure of butterfly valve is relatively simple, mainly composed of valve body, valve stem and valve plate. V-ball valve is composed of valve body, ball and valve seat. The special shape of the ball makes it have good adjustment performance.

Reference: www.hdqiufa.com.

Haydn pneumatic V-ball valve