Ball Valves Overview
The invention of the ball valve has proven to be a revolutionary development for the valve industry, supplying numerous unique solutions that meet modern flow control requirements. But its successful application was not immediately evident. Early in the life of the ball valve, its current assets and values were not realized. The lack of machining technology to make a truly round ball did not exist. And sealing materials of the time, associated with the use of natural rubbers, were very limited and prevented the ball valve from being applied to any significant industrial use.
During World War II and into the 1950s, machining technology developed for the war effort allowed the inherent advantages of the ball valve to be introduced into military usage. The development of synthetic materials such as polytetrafluoroethylene, better known as Teflon, paved the way for industrial sector applications.
Today, the ball valve is used in a wide array of applications for flow control
of liquids, gases and even solids. These applications are in temperatures that range from -450° F (-267° C) to more than 1600° F (871° C). Pressures can range from full vacuum to in excess of 20,000 PSI.
Industry Codes & Standards