Selection of flow velocity in vinyl chloride pipes
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When designing vinyl chloride pipelines, what is a suitable flow rate to choose? (Pressure: 0.6 MPa, temperature: 30°C, oxygen-free environment)
Generally, the velocity of liquid vinyl chloride is less than 5 meters per second
It depends on the diameter of the pipe you choose; a smaller diameter results in a lower flow rate, while a larger diameter allows for a higher flow rate. According to the **Standard ‘Safety Technical Regulations for Vinyl Chloride’, the flow rate should not exceed 5 m/s for liquids and 15 m/s for gases. When designing, we use DN200 pipes with a flow rate kept below 2 m/s; if the flow rate is too high, the pressure loss increases, and the head requirement of the pumping station has to be raised, which is not very reasonable