Ball valve
at in alignment with the ow when open, and is perpendicular to it when
closed, making for easy visual conrmation of the valve's status.Ball valves are durable,
performing well after many cycles, and reliable, closing securely even after
long periods of disuse. These qualities make them an excellent choice for
shutoff applications, where they are often preferred to gates and globe valves,
but they lack their ne control in throttling applications.
