PlumbPlumb
New Member
Hello,
Are 150# Black Malleable Iron Fittings okay to be used with Schedule 40 Black steel pipe underground in grass for propane gas? Or will they corrode over time even with a protective covering?
I'm using Schedule 40 Black Steel Pipe underground, with #150 Black Malleable Iron Fittings for a commercial building. They will both have a protective covering that is mechanically applied in a factory. The pipe covering will consist of coal-tar enamel, a wrapper of felt and a wrapper of kraft paper. All this will be run in a steel conduit and vented above ground outside. Do the fittings need to be covered in coal-tar enamel, and wrapped in felt and kraft paper as well? Any insight on this situation is greatly appreciated. This is down in Florida.
Thank you!
Are 150# Black Malleable Iron Fittings okay to be used with Schedule 40 Black steel pipe underground in grass for propane gas? Or will they corrode over time even with a protective covering?
I'm using Schedule 40 Black Steel Pipe underground, with #150 Black Malleable Iron Fittings for a commercial building. They will both have a protective covering that is mechanically applied in a factory. The pipe covering will consist of coal-tar enamel, a wrapper of felt and a wrapper of kraft paper. All this will be run in a steel conduit and vented above ground outside. Do the fittings need to be covered in coal-tar enamel, and wrapped in felt and kraft paper as well? Any insight on this situation is greatly appreciated. This is down in Florida.
Thank you!