How does a motorized butterfly valve work?
A motorized butterfly valve operates by changing the position of a round disc that is located within a pipeline. When this motor moves the valve to the open position, the disc is parallel to the pipeline and liquids are able to flow past the disc on either side.
What is a butterfly valve actuator?
An actuator is a mechanical device for moving or controlling a mechanism or system. A butterfly valve is a valve used for flow regulation in which the disc takes the form of disk. Operation is similar to that of a ball valve. A plate or disc is positioned in the center of the pipe.
Can you control flow with a butterfly valve?
Unlike gate valves, butterfly valves can be used for throttling or regulating flow as well as in the full open and fully closed position. The pressure loss through a butterfly valve is small in comparison with the gate valve.
What controls the butterfly valve?
A butterfly valve controls flow through a pipe using a single disc mounted on a central shaft. A resilient seated butterfly valve includes a rubber seat between the outer diameter of the disc and the inner wall of the valve.
What is the difference between a ball valve and a butterfly valve?
Flow regulation: Both valve types can be used for on/off control and proportional control, but ball valves are typically used for proportional due to better flow regulation. Ports: A butterfly valve can only have two ports, while a ball valve can have more than two ports.
What are the disadvantages of butterfly valves?
One disadvantage of butterfly valves is that some portion of the disc is always presented to the flow, even when fully opened. The use of a butterfly valve therefore always results in a pressure switch across the valve, regardless of the setting.
What are the parts of a butterfly valve?
Parts Of A Butterfly Valve. Butterfly valve has four main components, namely: the body, seat, operator or valve handle, and disk. High performance valves like this usually have a body that would usually fit in between two pipes. A butterfly valve is used to control the flow of a certain object.
What is the function of motor operated valve actuator?
Functions Automatic switching off in the end positions. After receiving an operation command, the actuator moves the valve in direction OPEN or CLOSE. Safety functions. The torque switching is not only used for torque seating in the end position, but it also serves as overload protection over the whole travel and protects the Diagnosis.
What is a keystone butterfly valve?
Keystone Butterfly Valves are suited for applications that have to do with isolation and the control of liquids, gases or slurries. The Keystone Butterfly Valves are used to isolate and regulate the flow of the liquids, gases or slurries.
What is an electric butterfly valve?
What Is Electric Butterfly Valve? Electric butterfly valve means that the electric actuator is driven by AC/DC voltage or signal , and the valve disc rotates 90 degrees around the valve stem, to open or close the valve.