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A pressure regulator is a valve that controls the pressure of a fluid to a desired value, using negative feedback from the controlled pressure.
Pressure regulators reduce a supply (or inlet) pressure to a lower outlet pressure and work to maintain this outlet pressure despite fluctuations in the inlet pressure. The reduction of the inlet pressure to a lower outlet pressure is the key characteristic of pressure regulators.
Two Types of Pressure Regulator. There are two broad categories that act as a primary catch-all for pressure regulators: pressure-reducing and back-pressure regulators. In addition to these, there’s a small, limited segment of various special application regulators that we’ll discuss another time.
A pressure regulator is a device that reduces a high input pressure to a regulated lower output pressure. It’s designed to control the pressure of liquids or gases in a system. Pressure regulators also help to keep the output pressure constant, even while the inlet pressure fluctuates.
Pressure regulators are important parts of industrial fluid and analytical instrumentation systems. These critical components help to maintain desired system pressure and flow in response to operational system changes.
Pressure regulators reduce high pressure on the input side to a lower controlled pressure level on the output side. They maintain consistent pressure within a system, although they experience some level of pressure drop, called droop, as the flow increases.
There are two primary types of regulators: pressure-reducing regulators and back-pressure regulators. Pressure-reducing regulators control pressure to the process by sensing the outlet pressure and controlling their own downstream pressure.
Learn about why different types of pressure regulators are suited for unique applications and how to match the right option to your specific needs.
The fundamental role of a pressure regulator is to mechanically maintain a consistent pressure in a fluid system, regardless of fluctuations in input pressure or process variations. This is accomplished by adjusting the flow of fluid through the pressure regulator’s valve mechanism in response to changes in pressure. Pressure Regulator Operation.
Say the pressure regulator is operating in steady state flow at a fixed set point when the downstream flow is increased. The increase in flow results in a decrease in downstream pressure, reducing force on the diaphragm: FPS + FD ↓≠ FSS.
