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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:
Recommended Velocities in Steam 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.
- Sizing of steam and condensate pipe lines - pressure loss, recommended velocity, capacity and more.
- Recommended max suction flow velocity when pumping boiling fluids.
- Recommended max flow velocity on the delivery (pressure) side when pumping boiling liquids.
- Calculate flash steam generation in condensate pipe lines.
- Cavitation of impellers increases with water temperatures.
- Typical fluid flow velocities for common liquids, gases and vapors.
- Steam is a compressible gas where pipe line mass flow capacity depends on steam pressure.
- Steam is a compressible gas where the capacity of a pipe line depends on the size of the pipe and the steam pressure.
- Flow rate (lb/h) and pressure drop per 100 feet of pipe.
- Pressure drop and maximum allowable flow in steam pipes.
- Calculate pressure drops in steam distribution pipe lines.
- Steam pipes and pressure drop diagrams - imperial and metric units.
- Sizing of steam pipe lines - major and minor loss in steam distribution systems.
- Convert between speed and velocity units like m/s, km/h, knots, mph and ft/s.
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