Steam Pipe Slope
Steam Pipe Slope
(OP)
What is the recommended minimum slope in cases where the pipe runs uphill and the condensate must run back against the steam flow? Is there a commonly used relationship based on the steam velocity?
Thanks!
Thanks!





RE: Steam Pipe Slope
What kind of Facility/Plant/Code?
- Hospital/HVAC?
- Refinery/ASME B31.3?
- Chemical Plant/B31.3?
- Manufacturing Plant/?
- Power Plant?ASME B31.1?
- Utility Distribution System?
RE: Steam Pipe Slope
RE: Steam Pipe Slope
Then you should go to this link (http://w
In "Steam Distribution" pay attention to the "Steam Mains and Drainage"
RE: Steam Pipe Slope
This naturally leads to the question I posed, which was whether or not there is any information available on the required pipe slope by steam velocity.
Clearly, with a higher steam velocity, more slope is needed to drain condensate against the steam flow, which explains why the pipe diameter may need to increase in uphill sections. I am interested in any information relating slope to steam velocity. Surely research has been done?
RE: Steam Pipe Slope
RE: Steam Pipe Slope
ht
If you are normally using steam velocities of 30-35 m/s this means a 40 to 50% increase in diameter. The alternative is to use the zig-zag arrangement shown higher up on the same Spirax Sarco page.
If you want to try using steeper slopes with higher steam velocities you should be concerned about liquid pickup at the steam condensate interface and the generation of very wet steam.
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