Can You Use Galvanized Pipe for Propane?

When it comes to natural gas lines, galvanized pipe is usually prohibited. Galvanized pipe is iron or steel tubing that has been encased with zinc to provide corrosion resistance. There will be a galvanic reaction between the black iron and the galvanized coating and a different metal reaction.

Copper tubing or polyethylene piping are commonly used in constructing the propane yard. It is necessary that the service piping be installed appropriately and legally in accordance with the propane tank for the entire exterior portion of the setup to be safe and usable.

Because of the gas composition, the galvanizing flaked off and clogged the orifices, which was the original reason for this problem. That is no longer a problem with most gas these days! Outside, above ground, galvanized steel is required. It is possible to use underground metal pipes specifically designed for this purpose.

Types of pipes to be used

If your most recent home inspection reveals that you have galvanized vents, it may be worthwhile to negotiate with your landlord to have them replaced. In the meantime, think about the types of pipes you’d like to have in your new home.

Types of pipes


Essential products

  • Copper pipes
  • It can be quickly galvanized

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  • PEX
  • Can withstand extreme heat and temperatures

PEX pipes

  • PVC
  • Resists high temperatures

CPVC pipes 

PVC pipe

Here are some options for you:

1. Pipes made of copper

Pipes made of copper

This is most likely the most common type of piping found in American homes. Copper pipes are available in three different varieties. The thinnest copper pipe (M) has a lifespan of 20-50 years, whereas the thickest copper pipe (K) has 100 years!

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2. PEX


Cross-linked polyethylene is a durable yet responsive tube that has gained popularity over the last few decades due to its durability and flexibility. They are less prone to corrosion than copper pipes, and they can withstand extreme heat and freezing temperatures, unlike copper pipes. These are available in various colors, including black and white and blue and red. PEX pipes have a life expectancy of 40-50 years on average.

3. PVC (polyvinyl chloride)

PVC (polyvinyl chloride) pipes are easily identified as standard in appearance. These pipes, which are made of white plastic, are 25-40 years old. Their ability to survive depends on the environment in which they are placed. PVC, for example, can warp when exposed to high temperatures, and subsurface soil conditions can cause significant damage. The good news is that CPVC pipes (chlorinated polyvinyl chloride) can resist higher temperatures than the standard PVC pipe.

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Copper tubing or polyethylene piping are commonly used in constructing the propane yard. As part of ensuring that the entire outdoor portion of your setup is safe and serviceable, you must ensure that the service piping and propane tank are appropriately installed and legally.

The gasoline composition served a unique purpose in that it caused the galvanizing to flake off and plug the apertures when exposed to heat. This is not a problem with most gasoline. Immediately above the floor, galvanized steel is required. There are specific steel pipes that can be used underground suitable for this application.

A black iron pipe is a metal pipe that has been cut to size and threaded, and it is used for various applications such as gasoline pipelines and water distribution systems. Because they are primarily used for pure or propane gasoline lines, you must understand how to properly care for black iron piping when working on your gasoline line.

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Underground piping of propane

Underground piping of propane

Known as the yard line, the service plumbing is the gas line that goes between the tank and the gas appliances’ structure. Copper tubing or polyethylene piping are commonly used in constructing the propane yard.

Signs for you to replace your galvanized pipes

1. Leaks

Inevitably, corrosion or grime on the outside of the pipes (typically and around joints) will result in leaks. If the water in the home does not come out in a steady flow, it may leak into your plumbing system.

2. Water discoloration

The presence of iron and mineral deposits in the pipes can cause your water to appear brown. A simple dark spot near your faucet can also indicate rusted pipes.

3. Low pressure

Corroded pipes create snags in your water distribution system. Consequently, you may notice that your water pressure has decreased. Having better pressure in some taps than others could indicate that you have newer pipes in your home. This is why you should hire a professional home inspector to examine your entire pipe system.

To make matters even worse, this can also impact insurance rates because the presence of these pipes increases the likelihood of a costly leak occurring. Some insurance companies may refuse to provide you with coverage if they are present.

What do galvanized pipes mean?

Galvanized steel pipes have a zinc coating applied to the steel. Since the discovery of lead poisoning caused by standard lead piping, this practice (now known as galvanizing) has become popular among homeowners and businesses alike.

Galvanizing was the quickest and most cost-effective solution for repairing over seven decades of municipal lead piping. The use of galvanized water supply piping in homes for potable (drinking) water increased dramatically between World War II and the early 1960s.

The layout of galvanized pipes aids in the prevention of rust and corrosion on these steel metal pipes and fittings. Corruption and rust seemed to be eliminated after lead pipes were immersed in molten zinc for a short period. Unfortunately, we soon discovered that doing so is akin to applying band-aids to a knife wound.

How to tell if a pipe is galvanized

How to tell if a pipe is galvanized

Unfortunately, although galvanized pipes have been out of service for more than 60 years, we still find galvanized pipes in some houses. We’ve seen them in homes that were constructed in the 1980s. To obtain a detailed report on the condition of your pipes, it is best to hire a home inspector. To determine the current state or form of lines in your home, however, follow these steps:

a) However, to determine the current state or form of pipes in your home, follow these steps:  Locate the point at which your piping enters your home: This could be near your water meter or close to the shut-off valve, which is usually located outside your house.

b) Take a glance at the piping system: If they have paint on them, you can lightly scrape them to reveal their actual color if you want to. Is it more like a piece of plastic or a piece of copper? If this is the case, congratulations! Galvanized steel is used when your line appears silver or grayish metal (with threads).

How long these galvanized pipes will last is impossible to predict. People believed that this protective piping would last for upwards of 100 years when it was first installed. Using an insufficiently protective zinc coating, on the other hand, can shorten that time frame to 30-40 years.

Galvanized pipes have not been used in residential construction since the 1980s (or even later), which means your pipes have experienced approximately 40 years of wear and tear. No matter how well the galvanizing job was done, there will likely be a significant amount of rust in your pipes.

The use of galvanized steel pipes for natural gas traces is generally prohibited. For corrosion protection, galvanized pipe is made of iron or metal that has been coated with zinc. There is no doubt that the galvanized coating will have different steel or galvanic reaction to black iron.

The reason the galvanized pipes are considered bad

These vents did perform admirably for a few years after they were initially installed. The problem was that after decades of use and abuse, the galvanized/zinc coating began to deteriorate, and corrosion began to set in.

The worst part is that it is often difficult to detect because rust begins on the inside. A small deposit of lead particles can build up in the pipes, leaching into the water supply.


Check your home inspection to see what kind of water supply pipes you have–especially if you have an older house. If you live in a house built before 1960, there’s a good chance you’ll need a plumber in the near future.

There are some hidden problems in homes you may not want to take a chance on. Not all galvanized pipes are inherently “bad,” but they are no longer in use and are most likely nearing the end of their useful life at this point.

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