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Recommended Velocities in Steam Systems
The steam velocity in a steam distribution system should be within certain limits to avoid excessive wear and tear
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The steam velocities or speeds below are commonly recommended as acceptable for steam distribution systems:
| Steam System | Velocity | |
| (m/s) | (ft/s) | |
| Saturated Steam - high pressure | 25 - 40 | 82 - 131 |
| Saturated Steam - medium and low pressure | 30-40 | 99 - 131 |
| Saturated Steam at peak load | < 50 | < 164 |
| Steam and Water mix | < 25 | < 82 |
| Superheated Steam | 35 - 100 | 100 - 300 |
- Saturated steam - low pressure - is common for heating services and secondary process pipes.
- Saturated steam - high pressure - is common in powerhouse, boiler and main process lines.
- Superheated steam is common in power generation and turbine plants.
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Related Topics
- Pipe Sizing - Sizing steam and condensate pipes - pressure loss, recommended velocity, capacity and more
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Related Documents
- Sizing Steam Pipes (lb/h) - Steam is a compressible gas where the capacity of the pipe line depends on the size of the pipes and the steam pressure. This table can be used for fast sizing of steam pipes dimensions
- Steam Pipes - Sizing - Pipe sizing steam systems - major and minor loss in steam distribution systems
