Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

This is an AMP page - Open full page! for all features.

Propane Gas Piping - Low Pressure Capacity vs. Size

Sponsored Links

The tables and diagrams below can be used for sizing propane gas pipes.

Steel Pipe - Schedule 40

Propane Gas - Low Pressure Capacities in Steel Pipes Schedule 40
Pipe Size
(in)		Capacity of Pipe (MBH)
Pipe Length (ft)
10204080150300
1/2 235 160 110 75 55 35
3/4 490 340 230 160 115 80
1 925 640 440 300 215 145
1 1/4 1900 1305 900 620 440 300
1 1/2 2850 1960 1345 925 660 450
2 5490 3770 2590 1780 1270 870
2 1/2 8740 6010 4130 2840 2020 1390
3 15455 10620 7300 5020 3570 2450
4 31525 21670 14890 10230 7280 5010
5 57030 39200 26940 18520 13180 9060
6 92350 63470 43620 29980 21340 14665
8 189750 130410 89630 61600 43840 30135
  • pressure less than 1 1/2 psig
  • fittings factor 1.5 - equivalent pipe length = pipe length + 50%
  • pressure drop 0.5 inches water column
  • energy content in propane gas 2520 Btu/cu ft
  • One MBH is equivalent to 1000 BTU's per hour
  • 1 CFH ≈ 2.54 MBH
  • steel pipes schedule 40
.

Copper Tubing - type K

Propane Gas - Low Pressure Capacities in Copper Tubes - type K
Capacity of Pipe (MBH)
Nominal Pipe Size (O.D)
(in)		Pipe Length (ft)
10204080
1/4 (3/8) 35 25 17 12
3/8 (1/2) 75 50 35 25
1/2 (5/8) 150 105 70 50
5/8 (3/4) 265 180 125 85
3/4 (7/8) 380 260 180 120
1 (1 1/8) 805 555 380 260
1 1/4 (1 3/8) 1450 995 685 470
  • pressure less than 1 1/2 psig
  • fittings factor 1.5 - equivalent pipe length = pipe length + 50%
  • pressure drop 0.5 inches water column
  • energy content in propane gas 2500 Btu/cu ft
  • One MBH is equivalent to 1000 BTU's per hour
  • 1 CFH ≈ 2.54 MBH
  • copper tubing type K
.

Copper Tubing - type L

Propane Gas - Low Pressure Capacities in Copper Tubes - type L
Capacity of Pipe (MBH)
Nominal Pipe Size (O.D)
(in)		Pipe Length (ft)
10204080
1/4 (3/8) 40 25 20 13
3/8 (1/2) 90 60 40 30
1/2 (5/8) 165 115 80 55
5/8 (3/4) 280 190 135 90
3/4 (7/8) 430 295 205 140
1 (1 1/8) 870 600 410 280
1 1/4 (1 3/8) 1510 1040 710 490
  • pressure less than 1 1/2 psig
  • fittings factor 1.5 - equivalent pipe length = pipe length + 50%
  • pressure drop 0.5 inches water column
  • energy content in propane gas 2500 Btu/cu ft
  • One MBH is equivalent to 1000 BTU's per hour
  • 1 CFH ≈ 2.54 MBH
  • copper tubing type L
  • 1 Btu/h = 0.293 W
  • 1 lb = 0.4536 kg
  • 1 ft (foot) = 0.3048 m
  • 1 in water = 248.8 N/m2 (Pa) = 0.0361 lb/in2 (psi) = 25.4 kg/m2 = 0.0739 in mercury
  • 1 psi (lb/in2) = 6,894.8 Pa (N/m2)
Sponsored Links

Related Topics

• Fluid Flow and Pressure Loss in Pipes and Tubes

Fluid flow and pressure loss in pipe lines. Water and sewer systems. Steel pipes, pvc pipes, copper tubes and more.

• Gases and Compressed Air

Properties of air, LNG, LPG and other common gases. Pipeline capacities and sizing of relief valves.

Related Documents

Copper Tubes Type K - Dimensions and Physical Characteristics

Physical characteristics of copper tubes ASTM B 88 type K.

Fuel Oil Burners

Pot types, gun types and rotary types fuel burners.

Gas Pipes - Low Pressure Sizing

Sizing gas pipes for apartment service lines.

Gas Vent Termination - Clearance vs. Roof Slope

Clearance tolerance for gas vent terminations vs. roof slope.

House Gas Pipes - Capacities vs. Dimensions

Carrying capacity of house gas pipes - in imperial and metric units.

LPG Pipes - Pressure Loss vs. Gas Flow

Resistance and pressure loss in liquid LPG pipes.

Pipes - Relative Capacity

Relative capacity between larger and smaller pipes.

Propane - Density and Specific Weight vs. Temperature and Pressure

Online calculator, figures and tables showing density and specific weight of propane, C3H8, at temperatures ranging from -187 to 725 °C (-305 to 1300 °F) at atmospheric and higher pressure - Imperial and SI Units.

Propane - Dynamic and Kinematic Viscosity vs. Temperature and Pressure

Online calculators, figures and tables showing dynamic and kinematic viscosity of liquid and gaseous propane at varying temperarure and pressure, SI and Imperial units.

Propane - Prandtl Number vs. Temperature and Pressure

Figures and tables with Prandtl Number of liquid and gaseous propane at varying temperarure and pressure, SI and Imperial units.

Propane - Thermal Conductivity vs. Temperature and Pressure

Online calculator, figures and tables showing thermal conductivity of liquid and gaseous propane at varying temperarure and pressure, SI and Imperial units.

Propane - Thermal Diffusivity vs. Temperature and Pressure

Figures and tables showing thermal diffusivity of liquid and gaseous propane at varying temperarure and pressure, SI and Imperial units.

Propane - Thermophysical properties

Chemical, physical and thermal properties of propane gas - C3H8.

Propane Gas - Sizing of Pipe Lines

Sizing low pressure propane gas pipe lines - Metric units.

Propane Gas Piping - Capacity vs. Size

Sizing of propane gas pipe lines with pressures above 5 psig (35 kPa).

Sponsored Links

Search Engineering ToolBox

  • the most efficient way to navigate the Engineering ToolBox!

SketchUp Extension - Online 3D modeling!

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp from the Sketchup Extension Warehouse!

Privacy

We don't collect information from our users. Only emails and answers are saved in our archive. Cookies are only used in the browser to improve user experience.

Some of our calculators and applications let you save application data to your local computer. These applications will - due to browser restrictions - send data between your browser and our server. We don't save this data.

Google use cookies for serving our ads and handling visitor statistics. Please read Google Privacy & Terms for more information about how you can control adserving and the information collected.

AddThis use cookies for handling links to social media. Please read AddThis Privacy for more information.