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Choosing the Right Piping Material

By: Michael Camber

A large component of reducing compressed air system energy costs and increasing plant efficiency is choosing the right air distribution system. Piping is quite often overlooked when it comes to optimization projects. It’s also one of the first project costs cut when an installation budget needs trimming. Truth be told, piping material selection greatly impacts pressure drop, air quality, and leak load. Here’s an overview of common piping materials and some considerations to keep in mind when selecting pipe for your installation.

Common Piping Materials

The most common piping materials include stainless steel, aluminum, copper, galvanized iron, black iron, and PVC. The table below lists the advantages and disadvantages of each. PVC is included in the chart because it’s commonly used, but it’s not a material we would recommend using because of the safety concerns associated with installing it.

Generally speaking, aluminum and copper would be the best choices since they are not prone to build-up and will provide years of low pressure drop air delivery. Also, aluminum is available as a system—complete with perfectly matched connectors for leak-free design.

Copper is also a solid choice, however installation does require an open flame and quality brazing to prevent leaks. The material cost can also be high.

Stainless steel is not prone to build up or leaks, but it is very expensive and really only called for in specialty applications—if you need it, you’ll know.

Piping Installation Considerations

When selecting piping for an installation, consider the following:

So when it’s time to choose piping materials, look at more than the cost of the pipe. Think about your system needs today and long term. Looking ahead can help you make the right investment at the right time.

 

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