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:
|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.