Gas Pipe Size Chart-Propane Gas、Natural Gas

Gas Pipe

Gas pipelines are very common in our lives. They are the blood vessels connecting gas and daily equipment. Different sizes will directly affect the efficiency and safety of gas transportation.

Gas type

Natural Gas and Propane Gas (also known as LPG) are the two most common fuels in our lives, but their requirements for pipelines vary greatly.

Natural gas contains less water, is dry gas, and is less corrosive. Steel pipes (Schedule 40), copper pipes (Type L), PVC pipes (compliant with specifications), etc. can be used.

• Application scenarios include home heating, cooking, hotel stoves, central air conditioning, and industrial gas boilers.

Natural gas pipe size chart – Size of Pipe in Inches

Natural gas pipe size chart -Low Pressure Capacities

Propane Gas Pipe Size Chart

Propane contains sulfides, which can corrode pipes, so PVC pipes are prohibited. Corrosion-resistant materials such as galvanized steel pipes, copper alloys, and stainless steel are required. The pressure of propane tanks is usually >100 psi, so thicker pipes are required.

• Application scenarios include propane tanks in rural areas without natural gas, portable propane tanks used when camping, and backup generators for hospitals.

Propane gas pipe size chart – Size of Pipe in Inches

Propane gas pipe size chart -Low Pressure Capacities

Factors affecting gas pipeline efficiency

• Pipe Size: The nominal diameter of the pipeline (not the actual inner diameter, a 1-inch pipeline actually has 1.049 inches of inner diameter)
• Flow Rate: The amount of gas transported through the pipeline per unit time, equal to the sum of the flow rates of all terminal devices
• Pressure: The pressure that the gas pipeline must withstand when working.
• Pipe Length: Includes the straight pipe length and the equivalent length of the pipe fittings (elbows and other pipe fittings will extend the straight pipe length).

Common Misconceptions

• Myth 1: The bigger the pipe diameter, the better
  A pipe diameter that is too large will increase costs, and a low gas flow rate will cause impurities to deposit, affecting efficiency.
• Myth 2: Natural gas and propane pipelines are universal
  Natural gas and propane have different corrosiveness and pressures, so the pipe materials and sizes cannot be universal!
• Myth 3: Ignore the impact of pipe fittings
  Pipe fittings will extend the length of the pipeline and increase pressure loss, so the equivalent length of the pipe fittings must be calculated.