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How does an acetylene regulator work?

Updated: 9/28/2023
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10y ago

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The Acetylene Regulator on a pressure bottle is a simple spring and diaphram pressure regulator. What makes it special is 2 things: the material it is built of to prevent the gas from contacting anything it could react to and it is designed to operate only in the correct pressure range.

It works by (it is a little more complicated but basicaly) haveing the spring and outlet pressure hold the inlet valve closed untill the pressure on the outlet side dropps below the set pressure. When it does the spring allows the valave to open. The spring tension is adjusted by a screw to increase or decrease the outlet pressure.

The lower the outlet pressure gets the flow of the gas increases. The neat part is that the increase in flow will happen over a very small pressure drop. Usually less than 20% of the set pressure.

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10y ago
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Q: How does an acetylene regulator work?
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