A pressure regulator is a control valve that reduces the input pressure of a fluid or gases to a desired value at its output. Regulators are used for gases and liquids, and can be an integral device with an output pressure setting, a restrictor and a sensor all in the one body, or consist of a separate pressure sensor, controller and flow valve.
- A pressure reducing element such as a poppet valve.
- A loading element to apply necessary force to the reducing element such as a spring, piston actuator or a diaphragm actuator.
- A sensing element such as a diaphragm or a piston.
Direct operated regulators – They are the simplest form of regulators (Fig. 1). They normally operate at lower set pressures, below 0,07 bar (1 psi) and can have greater accuracy. At higher pressures, up to 35 bar (500 psi), they can have 10-20% accuracy levels.
Pilot operated regulators – These regulators are ideal for applications with large variation in flow rates, fluctuations in inlet pressure, or decreasing inlet pressure conditions that normally occur with gas supplied in cylinders or small storage tanks. It provides precise pressure control.
- Air compressors
- Water pressure reduction
- Breathable air supply
- Mining Industry
- Natural Gas Industry
Source : Wikipedia, Tameson
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