What should be the purge flow rate for steam pipelines?
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The standard requires a purging flow rate of >30 m/s for steam pipelines, but some sources specify that for high-pressure steam pipelines (4–12 MPa), the flow rate should be ≥60 m/s； Medium-pressure steam pipes (1–4 MPa): ≥40 m/s; Low-pressure steam pipes:
The power standard is that the blowdown coefficient is greater than 1
If possible, it is best to use a blasting purge.