Can You Use Pex For Air Compressor Lines? Here’s What You Need To Know

When it comes to setting up an air compressor system, one crucial decision is choosing the right piping material. PEX (cross-linked polyethylene) has emerged as a popular option due to its durability, flexibility, and ease of installation. However, can you use PEX for air compressor lines?

Understanding PEX

PEX is a type of plastic tubing made from high-density polyethylene that has been cross-linked to improve its strength and performance. It is commonly used in plumbing systems for water distribution and radiant heating.

Advantages of PEX for Air Compressor Lines

• Durability: PEX is highly durable and resistant to corrosion, making it suitable for long-term use in air compressor systems.
• Flexibility: PEX’s flexibility allows for easy bending and maneuvering, making it ideal for complex installations.
• Easy Installation: PEX can be quickly and easily installed using push-fit or crimp fittings, reducing labor costs and installation time.
• Low Pressure Drop: PEX has a smooth interior surface that minimizes pressure drop, ensuring efficient air flow through the system.

Considerations for Using PEX for Air Compressor Lines

• Pressure Rating: PEX tubing is available in different pressure ratings, so choose one that meets or exceeds the operating pressure of your air compressor.
• Temperature Range: PEX has a temperature range of -40°F to 180°F, which is suitable for most air compressor applications. However, it is important to check the specific temperature rating of the PEX you choose.
• Oil Resistance: Standard PEX tubing is not oil-resistant, so if your air compressor uses oil, you will need to use a specialized oil-resistant PEX.

Installation Guidelines

• Use PEX tubing with a pressure rating that meets or exceeds the operating pressure of your air compressor.
• Cut the PEX tubing to the desired length using a sharp knife or tubing cutter.
• Deburr the cut ends of the tubing to remove any sharp edges.
• Insert the tubing into the fittings and push until it clicks into place (for push-fit fittings) or crimp the fittings using a crimping tool (for crimp fittings).
• Test the system for leaks by pressurizing it and checking for any air escapes.

Alternatives to PEX

• Copper: Copper tubing is the traditional choice for air compressor lines and offers excellent durability and performance. However, it is more expensive and difficult to install than PEX.
• Galvanized Steel: Galvanized steel piping is another durable and affordable option. However, it is prone to corrosion and requires welding for installation.
• PVC: PVC (polyvinyl chloride) piping is a lightweight and inexpensive option. However, it is not as durable as PEX or copper and may not be suitable for high-pressure applications.

Recommendations

Using PEX for air compressor lines can be a viable and cost-effective solution. By understanding the advantages, considerations, and installation guidelines, you can determine if PEX is the right choice for your system. If you have any questions or concerns, consult with a qualified professional for guidance.

Frequently Asked Questions

• Q: Can I use regular PEX for oil-lubricated air compressors?

A: No, you need to use oil-resistant PEX specifically designed for this purpose.

• Q: What is the maximum pressure rating for PEX tubing used in air compressor lines?

A: The pressure rating depends on the type and size of PEX tubing. Check the manufacturer’s specifications for the specific product you are using.

• Q: How do I connect PEX tubing to metal fittings?

A: Use transition fittings specifically designed to connect PEX to metal. These fittings may require crimping or soldering, depending on the type.