Galvanized Steel Gas Pipe

Galvanized nipples resist rust and corrosion.

Galvanized steel gas pipe. A discussion started in 2005 but continuing through 2019. Welded steel schedule 40 pipe black steel pipe is interchangeable with black cast iron or black malleable iron pipe. Black nipples are interchangeable with black cast iron or steel. Welded steel schedule 40 pipe nipples each feature a weld bead inside and are npt threaded at both ends.

Use in low pressure plumbing applications including air water oil natural gas and steam. Galvanized pipe was once the most popular option for indoor plumbing applications. Black steel pipe is also popular for other water transfer applications including potable water as well as in gas. Mixing galvanized and iron pipe for natural gas lines.

Black steel pipe on the other hand corrodes more easily than galvanized pipe and allows minerals from water to build up inside it. Use in low pressure plumbing applications including air water oil natural gas and steam. If pipe is in the ground it will tend to corrode faster depends on the soil conditions. Galvanized pipe is used for residential potable water and drainage application.

Galvanized pipe is coated with zinc to help resist rust and corrosion. I was told many years ago that if galvanized and iron pipe were mixed in a natural gas pipe line galvanic reaction would eventually cause leaks. Southland galvanized steel pipe is compliant astm a53 southland galvanized steel pipe is compliant astm a53 specifications. More product details close.

Galvanized steel pipe costs more than black steel pipe because of the zinc coating and manufacturing process involved in producing galvanized pipe. Galvanized steel pipe is most commonly used in plumbing and other water supply applications. Southland pipe 1 2 in x 72 in 150 psi galvanized pipe. In some areas plastic pipe is allowed underground with electric wire above it to allow for locating of that plastic gas pipe as well as warning.

The biggest drawback of galvanized piping is the corrosion that can build up within the interior. Many areas do not allow galvanized pipe underground for gas piping and factory coated steel pipe must be used. It is commonly used in fire sprinkler systems thanks to its high heat resistance. All pipe features carbon steel construction with npt threads.

Yet a plumber friend claims the mix is ok. Utilizing galvanized pipe to carry gas can create a hazard. The pipe is zinc coated for corrosion resistance.