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2. Pressure regulator - Wikipedia

   en.wikipedia.org/wiki/Pressure_regulator

   Diagram symbols for pressure reduction and back pressure regulators. The conceptual difference is mainly in which side the feedback is taken from. A pressure regulator is a valve that controls the pressure of a fluid to a desired value, using negative feedback from the controlled pressure. Regulators are used for gases and liquids, and can be ...

3. Flow control valve - Wikipedia

   en.wikipedia.org/wiki/Flow_control_valve

   These valves achieve this using **pressure-compensated mechanisms**, which automatically adjust the valve opening to ensure a steady flow rate. Some designs incorporate a **dual-chamber configuration** that enhances regulation at lower pressures, improving stability in applications such as **irrigation, industrial water systems, and municipal ...

4. Gas volume corrector - Wikipedia

   en.wikipedia.org/wiki/Gas_volume_corrector

   For this purpose, uses as input the gas volume, measured by the gas meter and other parameters such as: gas pressure and temperature. It is used for the settlement of trade wholesale gas. There are two types of gas volume correctors: [1] Type 1- gas volume corrector with specific types of transducers for pressure and temperature or temperature ...

5. Gas meter - Wikipedia

   en.wikipedia.org/wiki/Gas_meter

   Gas meter. A gas meter is a specialized flow meter, used to measure the volume of fuel gases such as natural gas and liquefied petroleum gas. Gas meters are used at residential, commercial, and industrial buildings that consume fuel gas supplied by a gas utility. Gases are more difficult to measure than liquids, because measured volumes are ...

6. Mass flow controller - Wikipedia

   en.wikipedia.org/wiki/Mass_flow_controller

   A mass flow controller is designed and calibrated to control a specific type of liquid or gas at a particular range of flow rates. The MFC can be given a setpoint from 0 to 100% of its full scale range but is typically operated in the 10 to 90% of full scale where the best accuracy is achieved.

7. Standard cubic foot - Wikipedia

   en.wikipedia.org/wiki/Standard_cubic_foot

   A standard cubic foot in the US Customary System is approximately equivalent to 0.02833 standard cubic meters in the SI system. In the natural gas industry, where quantities are often expressed in standard cubic feet, large multiples of standard cubic feet are generally not expressed with metric prefixes, but rather with prefixes based on roman ...