A flow control valve is a device that regulates the flow of a fluid (gas or liquid). The fluid can be a gas or a liquid. The fluid is controlled by a device that automatically regulates the speed and pressure of the fluid.
Flow control valves are used in many applications, including water supply systems and wastewater treatment plants as well as in industrial processes. In some cases, they are used to regulate air flow on airplanes or used on ships.
Flow control valves can be used to measure fluid flow, but they’re not the same as backflow prevention devices. A flow control valve uses a variable orifice to regulate the speed and pressure of a fluid within a system. It’s different from a backflow prevention device because it doesn’t have a barrier that prevents any reverse flow from entering into the system.
Flow control valves come in many varieties and are used in various industries across the world today. They’re most commonly found in heating and cooling systems; however, they can also be found in oil refineries, petrochemical plants, water treatment facilities and more.
In general, there are two types of flow control valves: linear and rotary.
Linear flow control valves are simple devices with a gate or slide that can be moved to adjust the opening of the valve. These valves are used for low-flow applications and usually have large diameters because they have small openings. Rotary flow control valves use circular discs for opening and closing the inlet and outlet ports on the valve body.
They are typically used in high-flow applications because they have larger diameters than linear valves, which allows them to withstand higher pressures from incoming fluids.