The Milwaukee Valve BB2-350 series unibody butterfly valve is made of bronze with a stainless steel 304 disc, and it has a lever handle and solder connections on both ends. This bronze valve, which is higher strength and more corrosion resistant than brass, is full port for reduced friction; its inner diameter is the same as the inner diameter of the pipe it connects to enable maximum operating efficiency. The one-piece construction reduces the possibility of leakage and it has solder end connections for a semi-permanent yet reversible connection to tubing. The maximum pressure is 175 pounds per square inch (psi) for use with water, oil, and gas (WOG), and the working temperature range is 30 to 275 degrees F. The zinc-plated steel lever handle with a vinyl sleeve rotates the stainless steel 304 disc in the valve seat to fully open, throttle, or stop flow through the valve. This valve is for use with gas, air, and oil systems, and both liquid and vacuum service applications.
Butterfly valves are used to regulate flow between pipes, tubes, and hoses by rotating a lens-shaped disc in the center of the valve and are suited for high-capacity, low-pressure applications. When the valve is fully opened, the disc face is parallel to the inlet and outlet of the valve, and when the valve is closed, the disc face is perpendicular to the opening of the valve. Butterfly valves may have a handle or lever that aligns with the disc position (open or closed) for manual flow control. They are primarily used in applications including agriculture, water treatment, fire protection, compressed air or gas, and vacuum service.
The Milwaukee Valve Company manufactures manual and actuated valves, controls, and control accessories. The company, founded in 1901, and headquartered in New Berlin, WI, meets International Organization for Standardization (ISO) 9001:2008 and 14001:2004 standards.