What type of flow meter is suitable for high-pressure, room-temperature nitrogen?
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What type of flow meter is suitable for high-pressure, room-temperature nitrogen? Pressure 12.5 MPa
If there are no restrictions on pressure loss, orifice plates and balanced flow meters can be used. If there are certain restrictions on pressure loss, then a vortex flow meter should be used. The accuracy requirements for process measurement generally do not exceed level 1.5; vortex flow meters can achieve level 1, while balanced flow meters can also reach or even exceed this level. Conventional orifice plates can achieve level 1.5.
Rotary flow meter or swirl flow meter
For gas measurement, vortex street, swirl, and rotor types are still considered; if the pipe diameter is large, thermal mass flow meters can be used for dry gases
You need to specify the exact process parameters, such as pipe diameter, temperature, pressure, etc., as well as whether it is within a device or in a pipeline corridor. You also need to take into account the flow meters currently in use at the plant, among other factors; it’s not possible to determine which flow meter is suitable just with a single statement.