When it comes to ball valves in general, these are a very reliable shutoff valve option in many different types of industries, applications, and systems. The simple design of a valve body, an interior ball with a hole, and a stem attached to an exterior ¼ turn lever are very easy to operate.
Turning the ball valve ¼ turn opens the valve and turning it back closes it completely, providing complete shutoff when the valve is working correctly. In the past, the body of the ball valve was often made of bronze or brass that, while durable and somewhat resistant to corrosion, still required replacement in some types of applications. Exposure to corrosive media in the system can create pits in the interior of the valve as well as the ball, limiting the full seal and even impeding the shutoff and one capacity of the valve.
The PVC Advantage
The use of PVC or polyvinyl chloride, a thermoplastic polymer, added even more benefits to the choice of a ball valve in many applications. These are generally a lower cost option than brass or bronze, and they are more easily made if a project requires a custom valve, which is always important for OEMs to consider.
PVC ball valves are also lightweight, which means it can be easily installed in any location in any system. This is often important in food and beverage production, chemical facilities and in the oil and gas industry.
Of course, PVC ball valves are also resistant to corrosion, which makes them a better choice than metal valves in many of these same applications. In addition, PVC is non-reactive, which means it will not alter the composition of the material in the system, another important consideration.
New options in PVC ball valves are also a good match in systems where heat and pressure is a factor. It is important to consider the rating on the valve and to ensure the application extremes will remain within the rated use limits.