If you are looking for a lightweight and versatile valve that can be used in control and isolation circumstances, there is a good chance that a standard butterfly valve is the best fit for your application.
Instead of using a large ball as the closing mechanism, a butterfly valve can use a disk which enables quick shutoff and drastically reduces the overall footprint of the valve.
Depending on the class, a butterfly valve can range from 3-7 times lighter than ball valves of the same diameter. When installed in a pipeline, they take up a third of the space as a ball valve; ideal for industrial facilities with limited space and difficult to access applications.
