What type of field flow meter is used to measure nitrogen flow rate?
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I need to measure the nitrogen flow rate on-site. The operating conditions are as follows: the diameter of the nitrogen pipe is DN20, the temperature of the nitrogen is around 250 degrees, the pressure is 0.5~0.8 MPa, and the flow rate ranges from 0~25 L/S. (This nitrogen is used intermittently; in fact, this flow meter is designed to enable operators on site to determine the nitrogen flow rate easily. High precision in flow measurement isn’t required – it’s sufficient to be able to see an approximate value on site, without the need for displays such as those in a DCS system.) What type of flow meter would be suitable in this case? Simple, reliable, and durable
When it comes to the function of purging, a rotameter is the most suitable choice – it saves money and is reliable
A glass rotameter will do the trick；
Metal tube rotameter with flow adjustment knob