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  2. Steam pipes can be sized with the table and diagram below - pressure in bar, velocity in m/s and capacity in kg/h. Sizing Steam Pipes - Imperial units (lb/h) Download Sizing Steam Pipes Chart in pdf-format

  3. Sizing pipes for superheated steam duty. Superheated steam can be considered as a dry gas and therefore carries no moisture. Consequently there is no chance of pipe erosion due to suspended water droplets, and steam velocities can be as high as 50 to 70 m/s if the pressure drop permits this.

  4. Online calculator to quickly determine Pipe Sizing by Velocity for Steam. Includes 53 different calculations. Equations displayed for easy reference.

  5. Properly sized steam pipes ensure that steam is transported efficiently, reducing energy loss and increasing system efficiency. Discover the factors that affect steam pipe sizing, such as pressure, temperature, and flow rate, and learn how to calculate the optimal pipe size for your system.

  6. Steam is a compressible gas where the capacity of a pipe line depends on the size of the pipe and the steam pressure. This table below can be used for fast calculation of steam pipes sch. 80. in general - 80 ft/sec is a recommended steam velocity

    Gauge Pressure (psi)
    Steam Velocity (ft/s)
    Pipe Size (in)(1/2")
    Pipe Size (in)(3/4")
    5
    50
    15
    27
    5
    80
    24
    43
    5
    120
    35
    64
    10
    50
    18
    33
  7. Steam Pipe sizing is crucial for steam system design and is done by process engineers. Depending on the steam quality, pressure drop, flow rate, velocity, etc they perform various iterations to arrive at the most optimal size for the steam pipe.

  8. For nominal pipe size NPS 6 and smaller, Schedule 40 (sometimes called 'standard weight') is the lightest that would be specified for steam applications. Only Schedules 40 and 80 cover the full range from NPS 1/2 up to NPS 24 and are the most commonly used schedule for steam pipe installations.