Milwaukee BB2 Series butterball butterfly valves are designed to isolate and regulate the flow of fluid in a pipeline. They feature a threaded design to provide a leak-proof connection while preventing water hammering. These units come with a full port opening with a larger internal diameter to provide unobstructed flow through the valve when fully opened. They have a one-piece design that provides rigid support and alignment for the disc and a Viton seal that resists the entry of contaminants. These valves are also included with an operating handle for easy control of the valve and can withstand pressure and temperature of 175 psi and 275 degrees F, respectively.