What is actuated butterfly valve?

Actuated Butterfly Valve A butterfly valve actuator controls the flow of gas or liquid by means of a disk, which turns on a diametrical axis inside a pipe or by two semicircular plates hinged on a common spindle, which permits flow in only one direction.

Where are Keystone valves manufactured?

Houston
Keystone, a 50-year-old Houston company, manufactures industrial valves for the oil and gas, power chemical and food and beverage industries. Its plants are located in Houston and scattered in other parts of the world, including the Netherlands, Australia, Italy, Brazil, Japan and India.

How does a pneumatic butterfly valve work?

This metal disc called Butterfly, rotates a quarter turn to allow fluid to pass indefinitely and so on the slow opening valve will reduce the flow, and the turning the disc to close the valve and flow. This valve is operated by pressurized air which is controlled by a pneumatic actuator that is fixed on it.

What is the difference between ball valve and butterfly valve?

Sealing: Ball valves provide a tight seal in process applications that require zero leakages when shutoff. Operating condition: Ball valves can operate up to 1,000 bar and 400 degrees Celsius. Butterfly valves typically operate at a lower pressure (less than 50 bar) and temperature (less than 250 degrees Celsius).

What is Keystone Valve?

Long Lasting Butterfly Valves with a Sturdy Reputation With a tradition of more than 70 years, Keystone built its reputation on providing industrial process butterfly valves known for their reliability, long service life, and reduced operating costs.

Can you throttle 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.

How do you know if butterfly valve is open or closed?

When the handle is parallel to the valve, it is closed, and when it is perpendicular to the valve, it is open. Butterfly valves are suited for use in garden irrigation, and they are also commonly used in space-restrictive applications.