Follow us on Call us for support at 952-935-2345. After hours messages are monitored 24/7.


How Much Moisture is in One Pound of Steam?


Recently a customer asked, “How much water is contained in a pound of saturated steam?” That question as asked can’t be answered, we would need more information.

Saturated steam (steam at saturated temperature/pressure) can be described using the metric “quality” or “dryness”.  At one end of the range is 100% [which is all dry steam (gas) with no wetness (liquid) at all]. At the other end is 0%, all saturated water and no steam at all. 

The answer to the question, if it has 100% dryness, is that it has no water (moisture) at all.  In practice, normal ranges are around 80-95%. A sample of steam with 80% dryness (or quality) would mean that for every pound of what is in the pipe, 80% of that is steam, and 20% is entrained water.

Does you have questions about steam, air or water you’d like answered? Send them to us and we’ll do our best to answer them for you.



<< Go Back
Subscribe to our CS Update Newsletter: Send Me The Latest News

952-935-2345  address15350 Minnetonka Blvd., Minnetonka, MN 55345

Products We Carry

  • Hot Water Boilers
  • Watertube Steam Boilers
  • Firetube Steam Boilers
  • Deaerators
  • Heat Recovery Steam Generators (HRSG’s)
  • Automatic Recirculation Valves
  • Economizers
  • Gas-Fired Water Heaters
  • Gas-Fired Humidifiers
  • Boiler/Generator Flue Stacks
  • Continuous Emissions Monitors (CEMS)
  • Pressure Reducing Valves
  • Safety and Relief Valves
  • Control Valves
  • Pressure Independent Control Valves
  • Expansion Joints, Guides, Anchors
  • Flash Tanks
  • Flow Meters
  • Balancing Valves
  • Check Valves
  • Separators
  • Pumps
  • Pressure Booster Systems
  • Piston Valves
  • Heating/Cooling Coils
  • Plate and Frame Heat Exchangers
  • Shell and Tube Exchangers
  • Water Heaters
  • Steam Humidifiers
  • Vacuum Systems
  • Condensers
  • Steam Traps
  • Wireless Steam Trap Monitors
  • Tube Bundles
  • Direct Gas-Fired Space Heaters
  • Direct Gas-Fired Make-Up Air Units
  • Unit Heaters
  • Strainers
  • Air Vents
  • Liquid Drainers
  • Heat Transfer Packages
  • Digital Water Mixing Valves
  • Air Cooled Condensers/Dry Coolers
  • Steam Filters
  • Electric Condensate Pumps
  • Steam/Air-Powered Condensate Pumps
  • Packaged Condensate Pump Skids