The K value for various fittings has been arrived at through experimentation. For any valve, a length over diameter (L/D) coefficient can be determined by equating the pressure drop through the valve to the equivalent length of pipe measured in pipe diameters. LINKS...
Our calculator is especially useful if the input units for the calculation are different from the desired output units, in which case it will perform these unit conversions for you. References 1NIST Special Publication 330 (2008) - "The International System of Units (SI)", edited by Barry N...
ConvertUnits.com provides an online conversion calculator for all types of measurement units. You can find metric conversion tables for SI units, as well as English units, currency, and other data. Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure,...
Note on Fittings:Characteristic pressure loss data on pipe fittings is often published by fitting suppliers as “equivalent feet of pipe length”. This data is not built into the Calculator, due to the wide variety of fitting designs available in the market. When doing Pressure Drop/Head Loss ...
The size of pipes, fittings, flanges and valves are often given in inches as NPS - Nominal Pipe Size, or in metric units as DN - 'Diametre Nominal'.
Equivalent Material: T22, 10CrMo910, 10CrMo9-10, 1.7380, 11CrMo9-10, 1.7383 A335/SA335 Grade P22 Alloy Steel Seamless Pipesare Carbon steel pipes with addition of chromium, molybdenum, and sometimes vanadium. Chromium, or chrome, improves high-temperature strength, increases oxidation resistan...
This application includes built-in pipe fitting equivalent length and nominal pipe sizing tables for a wide variety of pipe material types and diameters. This application uses slider controls that allow you to quickly increment or decrement the input values and immediately observe the calculated results...
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DN stands fordiametre nominal, which denotes the size of a pipe (specifically, its inside diameter) in millimeters (mm). NPS, ornominal pipe size, is merely the non-metric equivalent in which the diameter is measured in inches (in.). In print, pipe size designations are not followed by...