NPS - 'Nominal Pipe Size' and DN - 'Diametre Nominal' Temperature RatingĪSME/ANSI B16.3 Malleable Iron Threaded Fittings - Pressure and Temperature Ratings. Malleable Iron Threaded Fittings - Pressure vs. Number of studs, diameter and length for ANSI forged steel flanges ranging class 150 to 1500. Maximum working pressures for cast iron threaded pipe fittings according ANSI B16.4. Cast Iron Threaded Pipe Fittings - Working Pressures vs. Pressure (kPa) and temperature ( oC) ratings of ASTM A-106, API 5L and ASTM A-53 Seamless Carbon Steel Pipes - temperatures ranging -29 oC - 450 oC. Carbon Steel Pipes - Pressure and Temperature Ratings, Metric Units ![]() Pressure (psig) and temperature (deg F) ratings for A-53 B and A-106 B, A333, A334 and API 5L carbon steel pipes - temperatures ranging 100 oF - 700 oF. Carbon Steel Pipes - Pressure and Temperature Ratings, Imperial Units Maximum ratings for flanges conforming to ISO Standard 2229 dimensions and material specification AST-A-105. Carbon Steel Flanges - Pressure and Temperature Ratings Carbon and Stainless Steel Flanges - ASME/ANSI Class 900ĪSME/ANSI B16.5-1996 Pipe Flanges and Flanged Fittings - Class 900 Flanges - outside and inside diameters, bolt circles, numbers and diameters of bolts. Carbon and Stainless Steel Flanges - ASME/ANSI Class 150ĪSME/ANSI B16.5-1996 Pipe Flanges and Flanged Fittings - Class 150 Flanges - outside and inside diameters, bolt circles, numbers and diameters of bolts. Bronze Flanges - ASME/ANSI 300 lbįlange diameters, thickness, bolt circles, numbers and diameter of bolts for ASME/ANSI B16.15 - Cast Bronze Threaded Fittings - 300 lb Bronze - Flanges with plain faces. Bronze Flanges - ASME/ANSI 150 lbįlange diameters, thickness, bolt circles, numbers and diameters of bolts for ASME/ANSI B16.15 - Cast Bronze Threaded Fittings - 150 lb Bronze flanges with plain faces. ASTM Flanges - Hydrostatic Test Pressuresįlanged fittings and required hydrostatic test pressure. ASME B31 Pressure Piping - OverviewĪ survey of one of the most important pressure pipe codes - ASME B31, earlier known as ANSI B31. ASME - American Society of Mechanical EngineersĪSME is one of the leading organizations in the world developing codes and standards. ANSI - American National Standards InstituteĪNSI provides a forum for development of American national standards. Related Documents Aluminum Tubing - Allowable PressureĪllowable pressure for aluminum tubes. Pressure ratings of pipes and tubes and their fittings - carbon steel, stainless steel, plastic, copper and more. So, to convert directly from bar to pounds per square inch, you multiply by 14.503774.Piping codes and standards - ASME, ANSI, ASTM, AGA, API, AWWA, BS, ISO, DIN and more. Or, you can find the single factor you need by dividing the A factor by the B factor.įor example, to convert from bar to pounds per square inch you would multiply by 100000 then divide by 6894.757. To convert among any units in the left column, say from A to B, you can multiply by the factor for A to convert A into Pascals then divide by the factor for B to convert out of Pascals. To convert from Pa into units in the left columnĭivide by the value in the right column or, multiply by the reciprocal, 1/x.ĥ00000 Pa / 100000 = 5 bar ![]() Multiply by the conversion value in the right column in the table below.ĥ bar * 100000 = 500000 Pa To simply convert from any unit into pascals, for example, from 5 bar, just ![]() Where S is our starting value, C is our conversion factor, and How to Convert Units of PressureĬonversions are performed by using a conversion factor. By knowing the conversion factor, converting between units can become a simple multiplication problem: Some are obvious, such as pounds per square inch, but even the SI standard Pascal is actually an expression of one Newton per square meter. Since pressure is derived from force and area, many units for pressure directly relate force to area. Where P is equal to pressure, F is the normal force and A is area. Pressure is a scalar quality reflecting how force acts on a surface.
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