Propane Gas Piping - Low Pressure Capacity vs. Size
The tables and diagrams below can be used for sizing propane gas pipes.
Steel Pipe - Schedule 40
| Pipe Size (in) | Capacity of Pipe (MBH) | |||||
|---|---|---|---|---|---|---|
| Pipe Length (ft) | ||||||
| 10 | 20 | 40 | 80 | 150 | 300 | |
| 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
| Capacity of Pipe (MBH) | ||||
|---|---|---|---|---|
| Nominal Pipe Size (O.D) (in) | Pipe Length (ft) | |||
| 10 | 20 | 40 | 80 | |
| 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
| Capacity of Pipe (MBH) | ||||
|---|---|---|---|---|
| Nominal Pipe Size (O.D) (in) | Pipe Length (ft) | |||
| 10 | 20 | 40 | 80 | |
| 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)
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).