Does a mass flow meter have a throttling effect?
Thread Content
1. For example, in the case of a dn25 mass flow meter, is the flow capacity at the inlet equal to the sum of the flow capacities of the two measurement tubes? 2. I checked Emerson’s documentation, but I’m not sure how to determine the inner diameter of the flow tubes; could anyone please help me?
1. Installing a mass flow meter does indeed have a throttling effect on the flow within the pipeline to some extent, as the measurement tube of the flow meter is usually narrower than the connecting pipes. Therefore, even if the total flow capacity of the two measuring tubes is similar to that at the inlet, the overall flow rate will still be affected. 2. To check the inner diameter of the flow tube in Emerson’s samples, you need to find the product specifications or technical parameters section; there, the dimensions of the tube are usually indicated, such as diameter, length, and width. If this information is not provided, you may need to contact the manufacturer for more detailed details. .
The pressure drop of mass flow meters is quite significant. The mass flow meter itself functions as a throttling element; this effect is especially pronounced in dual-tube mass flow meters, where the high precision and small diameter of the measurement tube lead to a stronger throttling effect. The manufacturer’s flow meter calculation sheet should include pressure loss data.