Gas Pipes - Approved Materials
There are several types of materials approved for gas work. The codes for the local jurisdiction should always be checked but in general
- steel pipes
- copper pipes
- yellow brass pipe
- ductile iron
- aluminum pipe
- PVC pipes
- PE pipes
may be used.
Steel Pipes
Steel pipes can be used above ground as long as corrosion due to the environment and the conveying gas is of no problem. Steel pipes and copper pipes are the most common materials used inside buildings.
Copper Pipes
Copper pipes used in gas systems should be of type L or K and approved for gas.
Yellow Brass Pipes
Yellow brass pipes may be approved for inside installations.
Aluminum Pipes
Aluminum pipes should not be used in the ground. Aluminum is not approved in all jurisdictions.
Ductile Iron
Ductile iron pipes may be approved in some jurisdiction for underground work.
PVC Pipes
PVC - Polyvinyl Chloride - pipes may be used in pipelines buried outside a building.
PE Pipes
PE - Polyethylene - pipes may be used in pipelines buried outside a building.
Flexible Connectors
Flexible connectors are used to connect appliances to gas sources. Flexible connectors must be approved.
Related Topics
• Gases and Compressed Air
Properties of air, LNG, LPG and other common gases. Pipeline capacities and sizing of relief valves.
Related Documents
ASME B31.9 Building Services Piping - Working Pressure and Temperature Limits
The working pressure and temperature limits of ASME Code B31.9 - Building Services Piping.
ASTM B43 - Seamless Red Brass Pipes - Dimensions
Standard sizes specification for seamless red brass pipes.
AWWA C115 - Ductile-Iron Threaded Pipe - Dimensions
Dimensions of threaded ductile-iron pipe according AWWA C115.
AWWA C151 - Ductile-Iron Pipe Centrifugally Cast - Dimensions
Dimensions of ductile-iron pipes according AWWA C151/A.21.51.
House Gas Pipes - Capacities vs. Dimensions
Carrying capacity of house gas pipes - in imperial and metric units.
ISO 4437 - PE Pipes for Gaseous Fuels Supply - Dimensions
Dimmensions of PE pipes for gaseous supply according ISO 4437.
LPG Pipes - Pressure Loss vs. Gas Flow
Resistance and pressure loss in liquid LPG pipes.
Natural Gas - Pipe Sizing Calculator
Calculate capacities and dimensions of natural gas pipe lines.
Natural Gas Pipes - Low Pressure Capacities vs. Size
Sizing low pressure natural gas pipe lines - Imperial units.
Natural Gas Piping - Sizing of Low Pressure Pipes vs. Capacity
Sizing low pressure natural gas pipe lines - Metric units.
Propane Gas - Sizing of Pipe Lines
Sizing low pressure propane gas pipe lines - Metric units.