bellows-and-diaphragm gas meter
Quick Summary
A bellows-and-diaphragm gas meter is a type of displacement gas meter used to measure the volume of gas delivered to a user, commonly in domestic and commercial services. It operates by filling and emptying internal chambers of a known capacity in a regular sequence. By counting the number of times each chamber is filled and emptied, the total volume of gas delivered can be determined. Other types of gas meters include velocity, head, thermal, acoustic, and tracer meters, each operating on different principles to measure gas flow. A gas meter, in general, is an instrument designed to record the quantity of gas that passes through a specific outlet.12
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