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The steam velocity in a steam distribution system should be within certain limits to avoid excessive wear and tear
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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