Valves are devices that control flow of liquids or gases. Valves can also be hydraulic valves, pneumatic valves or electric valves as well as having an extensive selection of types including check valves, butterfly valves, globe valves, gate valves and ball valves. While valves may be used in commercial and residential applications, industrial valves are extremely popular and valve manufacturers typically construct these more heavy-duty valves from materials such as stainless steel, aluminum and brass. These items are ideal for many industries including agriculture, defense, chemical processing, power generation and petrochemical.
There are several types of butterfly valves, each with a unique purpose. A high-performance butterfly valve is used to control the flow in systems with extremely high pressure. A pneumatic butterfly valve, on the other hand, is optimal for pressurized air systems that operate at a much lower pressure.
When the materials attempt to flow backwards the valve will then react and create a seal. Check valves are ideal not only for eliminating backflow but also for their simple design. Although check valves come in a variety of different sizes and configurations it is hassle-free product that can be used in virtually any industry that requires reliable flow control. Materials used in making them include plastics, stainless steel metals or polypropylenes. While the general design and function of the check valve is relatively simple, there are a number of important considerations that must be taken into account to ensure that materials flow through the valve and that backflow is adequately prevented.