Pressure drop in steam pipes can be estimated with the diagrams below.
The diagram is made for steam with pressure 100 psi schedule 40 steel pipe. For other pressures - use correction factors:
- 1 lbs/hr = 1.26x10-4 kg/s
- 1 psi (lb/in2) = 6,894.8 Pa (N/m2) = 6.895x10-3 N/mm2 = 6.895x10-2 bar = 27.71 in H2O at 62oF (16.7oC) = 703.1 mm H2O at 62oF (16.7oC) = 2.0416 in mercury at 62oF (16.7oC) = 51.8 mm mercury at 62oF (16.7oC) = 703.6 kg/m2 = 0.06895 atm = 2.307 Ft. H2O
The diagram is made for steam with pressure 7 bar. For other pressures - multiply the pressure drop with correction factors:
- 1 kg/h = 2.778x10-4 kg/s = 3.67x10-2 lb/min
- 1 bar = 105 Pa (N/m2) = 0.1 N/mm2 = 10,197 kp/m2 = 10.20 m H2O = 0.9869 atm = 14.50 psi (lbf/in2) = 106 dyn/cm2 = 750 mmHg
Sizing of steam and condensate pipe lines - pressure loss, recommended velocity, capacity and more.
Calculate flow coefficients for the design of control valves - Imperial units.
The steam velocity in a steam distribution system should be within certain limits to avoid excessive wear and tear
Steam table with sensible, latent and total heat, and specific volume at different gauge pressures and temperatures.
Saturated Steam Table with properties like boiling point, specific volume, density, specific enthalpy, specific heat and latent heat of vaporization.
Steam is a compressible gas where pipe line mass flow capacity depends on steam pressure.
Steam is a compressible gas where the capacity of a pipe line depends on the size of the pipe and the steam pressure.
Flow rate (lb/h) and pressure drop per 100 feet of pipe.
Steam leaks through orifices for pressures ranging 250 - 600 psi
Pressure drop and maximum allowable flow in steam pipes.
Calculate pressure drops in steam distribution pipe lines.
Sizing of steam pipe lines - major and minor loss in steam distribution systems.