COVNA, as a pneumatic actuated butterfly valve manufacturer, we specialized in manufacturing air operated butterfly valve since 2000. COVNA’s pneumatically controlled butterfly valve are used to control the flow of a media remotely, quickly and safely.
There are two type actuation modes: Spring return pneumatic actuator also called single acting pneumatic actuator: Air to open or Air to off. Double acting pneumatic actuator: Air to open and air to close
Pneumatic butterfly valve is a kind of butterfly valve with simple structure, superior performance, high temperature resistance and corrosion resistance.
Compact structure, long service life, good sealing performance, easy maintenance, quick detachable and installation
Pneumatic and electric devices can be configured according to user requirements to meet the needs of remote control and program control
Small operation torque, quickly opened 90-degree rotation, good sealing performance
Stable performance, Widely used in various industries for both on-off and regulating service
Can be equipped with positioner, limit switch, hand wheel, solenoid valve etc.
High Torque Up To 4678Nm, high flow
In this article, we will bring you different type electric butterfly valves for your selection:
Three eccentric butterfly valve is widely used in metallurgy, electric power, petrochemical industry, water supply and drainage, municipal construction and other industrial pipelines with medium temperature ≤ 425 ℃, for regulating flow and breaking fluid.
Size Range: 2″ to 18″
Pressure Range: 1.0 to 2.5MPa
Material: Stainless Steel 304/316
Seal: Stainless Steel
Media: Water, oil, Gas, Liquid, steam, powder, anti-corrosive base