How to Go from Copper to PEX Without Soldering

Push-on connectors for copper to PEX transition

Push-on connectors are the most effective solution for transitioning from copper to PEX without soldering. These push-fit couplings like SharkBite allow for quick, tool-free installation and create reliable, water-tight connections between copper pipes and PEX tubing.

Transition options for connecting copper to PEX

Push-fit connectors to go from copper to PEX

• SharkBite couplings: Easy to install, require no special tools, and create a secure connection to transition from copper to PEX
• Other push-on connector brands: Similar to SharkBite, offering quick installation and reliable connections
• Advantages: Freeze-resistant, less likely to burst when frozen, and more durable than traditional connections

Crimp or clamp fittings

• PEX crimp rings: Require a crimping tool but provide a strong connection
• PEX clamps: Similar to crimp rings but use a different tool for installation
• Compatibility: Ensure you choose the correct fitting for your PEX type (A, B, or C)

Threaded adapters

• Male/female adapters: Allow for threaded connections between copper and PEX
• Usage: Useful when transitioning from existing threaded copper fittings

Installation techniques for copper to PEX transition

Using push-on connectors to connect copper to PEX

1. Cut the copper pipe cleanly
2. Smooth out any burrs with an abrasive cloth
3. Mark the insertion depth on the pipe
4. Push the connector onto the copper pipe until it reaches the marked depth
5. Insert the PEX tubing into the other end of the connector

Using crimp or clamp fittings

1. Slide the crimp ring or clamp over the PEX tubing
2. Insert the fitting into the PEX tubing
3. Use the appropriate tool to crimp the ring or tighten the clamp
4. Connect the other end of the fitting to the copper pipe using a threaded or sweat connection

Considerations when transitioning from copper to PEX

• Pipe size: Ensure you maintain proper pipe diameter when transitioning to avoid pressure issues
• Local codes: Check local plumbing codes for approved transition methods
• Water quality: Consider your water quality when choosing fittings, as some materials may be more resistant to corrosion

Market trends for push-on connectors

• The global press-fit connectors market is expected to reach $10.21 billion by 2030, growing at a 2.9% CAGR from 2024 to 2030
• TE Connectivity and Samtec are leading manufacturers in the press-fit connector market

Using compression fittings for copper to PEX connections

Compression unions are the most effective solution for connecting copper to PEX without soldering. SharkBite push-to-connect fittings are compression-style fittings, also known as compression unions, that work with both copper and PEX materials. These fittings require no special tools and provide reliable, leak-free connections to connect copper water lines without soldering in minutes.

Compression fitting options to join copper pipe without soldering

SharkBite push-to-connect fittings

• Easy installation: Push-to-connect design allows for quick and simple installation to go from copper to PEX without soldering or special tools
• Versatility: Compatible with PEX, copper, CPVC, PE-RT, and HDPE pipes, making it ideal to connect copper water lines without soldering
• Reliability: Perform well even in challenging conditions like vibrating pumps and systems with heated water and fluctuating pressure
• Reusability: Can be removed and reused with an inexpensive tool, perfect for those learning how to go from copper to PEX without soldering
• Time-saving: A 2-hour copper pipe fitting job can be completed in just 20 minutes using SharkBite fittings to join copper pipe without soldering

Traditional compression fittings

• Components: Compression unions consist of a compression nut, compression ring, and compression insert
• Versatility: Useful for connecting PEX to copper or other materials without soldering
• Application: Commonly used in retrofits, repairs, or additions to existing homes when going from copper to PEX without soldering

Installation tips for compression fittings to connect copper water lines without soldering

Preparing the pipes

• Clean copper pipes: Use a scouring implement or abrasive material to clean copper pipe ends before using compression unions
• Remove burrs: Smooth out burrs on cut pipe ends with an abrasive cloth to ensure proper fit when joining copper pipe without soldering
• Bevel pipe ends: Slightly bevel the tube end before inserting it into the fitting to prevent damage to the O-ring when going from copper to PEX without soldering

Installing the fitting

• Mark insertion depth: For press fittings, mark the insertion depth on the pipe before connecting to ensure proper fit
• Tighten properly: For traditional compression fittings, tighten the nut by hand (~2 turns), then use crescent wrenches for an additional 1-1.5 turns to securely connect copper water lines without soldering
• Check O-rings: Ensure O-rings are in place and not removed or lubricated when using compression unions

Alternative methods to go from copper to PEX without soldering

Press fittings

• Quick installation: Allow for transition from copper to PEX in seconds using a press tool, an alternative to compression unions
• Tool requirements: Require a press tool with appropriate jaws for installation when joining copper pipe without soldering

Sweat adapters

• Soldering required: One end must be soldered to the copper pipe, not suitable for those looking to connect copper water lines without soldering
• Safety consideration: Use lead-free silver solder for safety and code compliance when soldering is necessary

Step-by-step guide to connecting copper to PEX without soldering

To connect copper to PEX without soldering, use push-fit fittings or compression fittings. These methods are the most effective ways to connect copper to PEX without soldering. They are quick, easy, and require no special tools or soldering skills, making them ideal for DIY projects and professional plumbers alike when transitioning from copper to PEX.

Methods to connect copper to PEX without soldering

Push-fit fittings

• Quick and easy installation: Push-fit fittings allow for effortless transition from copper to PEX in seconds, making it easy to repair, replace, or add to existing plumbing systems
• No special tools required: Simply push the fitting onto the pipe for a secure connection when going from copper to PEX without soldering
• Versatile: Compatible with both copper and PEX pipes
• Removable and reusable: Can be disconnected and reused if needed

Compression fittings

• Simple installation: Requires only basic hand tools, making it an excellent alternative to soldering copper pipe
• Reliable: Provides a strong, leak-free connection when properly installed
• Versatile: Works with various pipe materials, including copper and PEX
• Cost-effective: Generally less expensive than specialized fittings for connecting PEX to copper pipe without soldering

Crimp rings or clamps

• Secure connection: Provides a tight seal when properly installed
• Cost-effective: Less expensive than some other fitting options
• Requires special tools: Crimping or clamping tools are necessary for installation

Step-by-step guide for using push-fit fittings to go from copper to PEX without soldering

1. Cut the copper pipe and PEX tubing to the desired length
2. Smooth out any burrs on the copper pipe with an abrasive cloth
3. Mark the insertion depth on both the copper pipe and PEX tubing
4. Insert the copper pipe into one end of the push-fit fitting until it reaches the marked depth
5. Insert the PEX tubing into the other end of the fitting until it reaches the marked depth
6. Tug on both pipes to ensure a secure connection

Tools and materials needed to connect PEX to copper pipe without soldering

• Pipe cutter
• Abrasive cloth or deburring tool
• Measuring tape or ruler
• Push-fit fittings (appropriate size for your pipes)
• Copper pipe
• PEX tubing

Tips for successful installation when going from copper to PEX without soldering

• Ensure pipes are clean and free of debris before connecting
• Double-check measurements and insertion depths before finalizing connections
• Follow manufacturer's instructions for specific fitting brands
• Consider using pipe support for horizontal PEX runs to prevent sagging

Benefits of using PEX as an alternative to soldering copper pipe

• 58-68% cheaper than copper, costing $4,000-$6,000 for a 2-bath, 1,500 sqft home compared to $8,000-$10,000 for copper
• Flexibility allows for fewer connections and easier installation in tight spaces
• More resistant to freezing and bursting than copper pipes
• Corrosion-resistant, reducing maintenance needs compared to copper

Considerations when transitioning from copper to PEX without soldering

• PEX is not suitable for high-temperature baseboard heating systems without special fittings
• PEX should not be used outdoors due to UV degradation
• Local building codes may have specific requirements for PEX usage
• Copper concentrations above 0.1 mg/L in water may negatively impact PEX integrity over time

FAQ

What are the best push-on connectors for copper to PEX transitions?

SharkBite couplings are widely considered the best push-on connectors for copper to PEX transitions. They offer easy installation, require no special tools, and create secure, water-tight connections.

How do compression fittings work for connecting copper to PEX?

Compression fittings use a compression nut, ring, and insert to create a tight seal between copper and PEX pipes. When tightened, the compression ring deforms to grip the pipe, creating a leak-free connection.

Can SharkBite couplings be used for both copper and PEX pipes?

Yes, SharkBite couplings are compatible with both copper and PEX pipes. They are versatile fittings that can be used with PEX, copper, CPVC, PE-RT, and HDPE pipes.

What tools are needed to connect copper to PEX without soldering?

For push-fit or compression fittings, you typically need a pipe cutter, abrasive cloth or deburring tool, and measuring tape. No special tools are required for installation, making these methods ideal for DIY projects.

Are solderless copper to PEX connections as reliable as soldered ones?

When properly installed, solderless connections using push-fit or compression fittings can be as reliable as soldered connections. These fittings are designed to withstand pressure and temperature fluctuations, and many are rated for long-term use.