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The filtration process begins at the extraction site, where gas is produced from underground deposits. During extraction, various contaminants can enter the gas stream. The first step in filtering natural gas typically involves the removal of larger impurities, such as dirt and debris, using coarse filters. After these initial filtration steps, fine filtration processes come into play. These may include various techniques such as adsorption, membrane separation, and chemical treatment to eliminate smaller particulates and harmful gases.


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natural gas distribution station

When high-pressure gas enters the valve, it pushes against the diaphragm and compresses the spring. As the diaphragm moves, it adjusts the valve opening, allowing only a set amount of gas to pass through to the downstream system. If the output pressure begins to rise above the desired level, the diaphragm moves against the force of the spring, closing the valve slightly to reduce flow. Conversely, if the outlet pressure drops, the diaphragm moves down, opening the valve and allowing more gas to flow through. This dynamic interaction ensures that the pressure remains stable, adapting to fluctuations in demand.


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natural gas distribution station

PRDs function based on a simple principle. They consist of a valve that automatically adjusts to maintain a constant downstream pressure, regardless of fluctuations in the upstream supply. When the upstream pressure increases, the valve opens to release excess fluid or gas, and conversely, it closes or narrows when the pressure drops, preventing under-pressure conditions. This mechanism ensures that the system operates within safe parameters, enhancing overall efficiency and reliability.

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natural gas distribution station