Polyethylene pipes are used in a wide range of pipes for drainage, irrigation, water service and even some varieties for underground gas transportation. The most common materials used to make gas pipes are steel, black iron, polyvinyl chloride (PVC), high-density polyethylene (HDPE) and copper. Some utilities prohibit some of these materials, so be sure to check with your local utility company to determine what is allowed in your area before installing any. If you hire a professional to do the work, they will know the local requirements.
PVC pipes will work well for natural gas lines and water supply. They are usually available in 10 foot and 20 foot sizes, and come in different diameters. Size ranges from ½ inch to 6 inch to choose one depending on purpose. Copper pipe is mainly used for cold and hot water distribution, and is also regularly used in HVAC systems for refrigerant lines.
Although it was once used in gas pipelines, it is no longer allowed in some jurisdictions. Copper pipes work in both underground and aerial applications, but copper may be affected by some soils and must have a protective sheath if used underground. For many years, copper was the gold standard for water supply pipes, as galvanized steel fell into disuse. Copper plumbing pipes can last up to 50 years, but as it ages, copper thins, which eventually leads to pinhole leaks.
More recently, several forms of plastic have replaced copper as the favorite, although copper pipes and fittings are still widely available. Due to the price of copper and the increased labor required for installation, many builders have switched to alternative water distribution pipes, especially PEX. Depending on the city in which you live or the commercial or residential applications, copper is still widely used over CVPC and PEX pipes. Copper comes in different thicknesses that are labeled M, L and K.
M is the thinnest grade of copper. Copper can be connected in different ways, including compression fittings, press-fit fittings or sweat welding. Copper K is used in underground applications and high pressure situations. Copper pipe M is used in heating applications and is not allowed on water lines in some jurisdictions because it cannot withstand high pressure water.
PEX is considered to be more durable than copper, with a likely lifespan of more than 50 years. For professional plumbers, PEX pipes have largely replaced copper and other plastics used for water supply pipes. They prefer PEX because of its low cost and because it comes in long rolls of tubes that are easy to transport. Because the flexible tube can be bent around corners, fewer elbows and other accessories are required, which speeds up installation.
PE gas pipe is made of ethylene and is a flexible plastic made of thermoplastic HDPE, which is used to transport water and gas. They often replace damaged steel and concrete pipes. As they are waterproof and have a strong molecular bond, they are excellent for transporting water and gas under high pressure. Aluminum-plastic composite tubes can withstand low and high temperatures.
This means that they are less likely to crack during cold weather. Hot-dip galvanized steel tubes are manufactured by dipping steel into a vat of molten zinc. This method makes steel resistant to corrosion and increases its longevity. It is crucial to note that hot-dip galvanized steel has a higher corrosion resistance than cold-galvanized steel.
For example, natural gas with a significant amount of hydrogen sulfide and moisture can react with copper tubes, causing black scale formation within the system. Or, sulfur in the gas can react with the zinc coating on the galvanized pipe, causing it to peel off. Because these scales can obstruct small openings in gas-burning appliances, some model codes have prohibited the use of galvanised and copper gas lines. But natural gas is much cleaner than it was 40 years ago, and almost all fuel gas goes through a sulfur recovery unit before entering the distribution system today.
In addition, fuel gas piping installations now require drip legs or sediment traps to be installed on the horizontal connection to the apparatus to collect moisture or debris flakes flowing with the fuel gas. Even so, even though the fuel gas has been cleaned, some states have not changed their codes to allow galvanized pipes or copper pipes. I recommend that you contact the people from the local safety and construction department and use the pipes they specify for your specific fuel gas installation. Mike Casey is a licensed master plumber, an ICC-certified plumbing inspector and building inspector, and co-author of the first editions of Code Check Plumbing.
See Texas Custom Builder Mike Reese's Three-Part Strategy to Bring Peace of Mind to Customers. Steel pipes can be used above ground as long as corrosion due to the environment and transport gas is not a problem. Steel and copper pipes are the most commonly used materials inside buildings. After extracting natural gas, it travels along a road-like piping system to end up in distribution systems that carry the gas to your home.
If you need help with a plumbing problem, The Home Depot offers plumbing services including repairs and installation. Gas pipes are a piping system in your home that is used to transport natural gas from the supply directly to the heating system. PVC gas pipes work well for outdoor underground gas lines because they are durable and resistant to corrosion. Gas goes from the distribution line, also known as a main line, to a house or other building on a service line, which the natural gas company is responsible for maintaining.
The piping upstream of the gas meter and the meter itself are usually the responsibility of the gas company. Before you have a contractor, do the installation of gas pipes at home, make sure they are using the correct type of gas pipes. In my experience, both types of pipes work well, and the IRC and the National Combustible Gas Code allow both, along with stainless steel corrugated tubing (CSST) and copper tubing (with some limitations), to be used for natural gas distribution pipelines. Your home may have a plumbing system that uses a whole type of material for water supply pipes, but don't be surprised to find several types of pipes, especially in older homes that have had a lot of plumbing repairs or upgrades.
The total cost of your gas pipeline will depend on whether or not you have existing gas lines or if you need to install completely new lines. . .