CO2 gas and flow meter issues
Thread Content
Control gas CO: control valve and differential pressure flow meter (controlled by DCS); pressure before the valve is 0.4 MPa, while the pressure after the valve is 0.27–0.32 MPa. The temperature is 70°C, the flow rate is 300–700 Nm³/h, the pipe diameter is DN125, and the CO concentration is 99.9%. The manufacturer is seeking recommendations on what type of control valves and flow meters to use.
It is recommended to use Yokogawa DY vortex flow meters. There are tons of control valves
Many types of flow meters can be used; it is recommended to use orifice plates as they are cost-effective and reliable. Rotameter vortex flow meters are also an option, as they come with built-in temperature and pressure compensation, resulting in higher accuracy.
Both the vortex flow meter or the orifice plate + differential pressure transmitter approach can be used for measurement
The FCI thermal mass flow meter has been operating stably for 5 years.