Selection of flowmeters for easily liquefiable liquids

2007-12-06View Original

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In our production processes, we encounter flow control issues with liquids that are prone to liquefaction, such as liquid ammonia, acetaldehyde, and methylamine. We use conventional metal rotor flowmeters for this purpose, but find it difficult to achieve stable flow control; the flow rate often fluctuates. Reducing the valve openings before and after the flowmeter helps somewhat by minimizing throttling in the pipes as the fluid passes through the flowmeter, yet stability is still not achieved, which poses significant challenges to actual production. Therefore, I would like to hear the opinions of experts on what form would be suitable for selecting a flow meter or an accompanying control system for this type of liquid.

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Selection of flowmeters for easily liquefiable liquids

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