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Also on TLV.com. TLV produces steam traps, condensate recovery pumps, pressure reducing valves and other steam-related equipment. We also offer consulting and engineering services. More. Online calculator to quickly determine Steam Flow Rate through Piping. Includes 53 different calculations. Equations displayed for easy reference.
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. Steam velocities of 25 m/s are in general sufficient for most saturated steam applications. Sizing Steam Pipes - Imperial units (lb/h)
Steam consumption rates for typical steam heated consumers in industries like bakeries, breweries, paper factories etc. Steam Flow Rate vs. Pressure Drop - Schedule 40 Pipe Flow rate (lb/h) and pressure drop per 100 feet of pipe. Steam Heating Processes - Load Calculating Calculating the amount of steam in non-flow batch and continuous flow ...
Gauge Pressure (psi)Steam Velocity (ft/s)Pipe Size (in)(1/2")Pipe Size (in)(3/4")550152758024435120356410501833There is a risk of steam starvation due to an excessive pressure drop. There is a greater risk of erosion, waterhammer and noise due to the inherent increase in steam velocity. As previously mentioned, the friction factor (f) can be difficult to determine, and the calculation itself is time consuming especially for turbulent steam flow.
Sizing New Pipes. Design new steam pipes correctly on pressure drop and velocity methods. Note: - You cannot use commas (,) as decimal points. Please use periods (.) Example: 1.02 not 1,02. Next - Checking Existing Pipes.
To find Cv value for critical flow application. 70 psi absolute Refer to Selection Chart Opposite. Draw a horizontal line from 70 psi absolute to critical pressure drop line (C-D). At this intersection drop a vertical line. Select valve size required from the appropriate valve type technical information sheet. Example 2.
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2.4 x flow x specific volume. Velocity= cross-sectional area. Flow = lbs. per hour. Specific volume (typically at the end of the steam line) cubic ft. per lb. cross-sectional area of the pipe internal area in square inches. example: steam Flow: 110,000 lbs.hr steam Pressure: 215 psig 10” sch. 40 pipe: 78.9 (cross-sectional area)
