Black Iron Unions

These black iron unions allow the user to connect two iron pipes in a non-permanent way. The ends have female threads, compatible with black iron piping of the same nominal size. Black iron fittings such as these unions are technically made of a malleable variety of steel, but they are most commonly referred to as "black iron" because their properties are similar to that of a strong iron. If you have any questions about these durable and extremely useful fittings, call us at (866) 777-7990!

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Black Iron Union Information

These fittings are very helpful when you want to clean or modify a system, as they allow you to disconnect and reconnect lengths of pipe from each other without destroying the seal tape or liquid sealant on the fitting's threads. Our black iron unions are also easy to install, with no welding or soldering required. This makes them a great option for DIY plumbing projects. Black iron has high temperature and pressure tolerances, making it ideal for gas and water supply lines. The black coloring protects these fittings from rust and corrosion, so they are able to go without being serviced for many years. Get all of your black iron fittings at PVC Fittings Online!

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