Introduction
Gone are the days when soldering was the only option for joining copper pipes. Modern press tools have revolutionized plumbing by enabling fast, flame-free connections that are just as reliable as traditional soldered joints. While this technology works wonders for copper, it’s equally transformative for PEX press fittings installations.
In this expert guide from Ask the Builder, we’ll explore:
- How press tools eliminate soldering hassles
- The surprising connection between copper press tools and PEX press fittings
- Professional tips for flawless press connections
- Why this method is becoming the industry standard
The End of Soldering: How Press Tools Changed Plumbing
Why Plumbers Love Press Tools
- No open flames – Eliminates fire risks and ventilation needs
- Faster installations – Connections take seconds versus minutes
- Cleaner work – No flux, solder, or messy cleanup
- Reliable results – Consistent quality regardless of installer skill
- Versatility – Works on wet pipes where soldering fails
From Copper to PEX: One Tool, Multiple Applications
While initially developed for copper, modern press tools like the Viega ProPress now work with:
- Copper pipe
- Stainless steel
- PEX press fittings
- Carbon steel (with MegaPress)
Press Tools for PEX: What You Need to Know
Key Differences Between Copper and PEX Pressing
| Feature | Copper Pressing | PEX Press Fittings |
|---|---|---|
| Connection Type | Metal-to-metal compression | Brass fitting with PEX compression |
| Required Prep | Clean, deburred pipe ends | Square-cut, calibrated PEX |
| Tool Compatibility | Standard press tools | May need PEX-specific jaws |
| Temperature Range | -40°F to 250°F | -40°F to 200°F |
Best Practices for PEX Press Fittings
- Use manufacturer-matched tools (Viega for Viega fittings, etc.)
- Always calibrate PEX-A tubing before pressing
- Verify full insertion with depth marks
- Inspect crimps with go/no-go gauge
- Pressure test all new installations
Top 3 Press Tools for Copper and PEX
- Viega ProPress (Battery-powered)
- Works with copper, stainless, and PEX press fittings
- LED indicators for proper compression
- 500+ presses per charge
- Ridgid RP 340 (Manual)
- Affordable entry-level option
- Compatible with multiple brands
- Ergonomic ratcheting design
- Milwaukee M12 Force Logic (Compact Electric)
- Lightweight for tight spaces
- Quick-change jaw system
- Fits standard PEX press fittings
Why Professionals Are Switching
Case Study: Apartment Complex Retrofit
- Traditional method: 6 weeks with 4 plumbers soldering
- With press tools: 3 weeks with 2 plumbers
- Savings: $18,500 in labor + no fire watch costs
DIYer Benefits
- No special skills required
- Can make repairs in tight spaces
- No waiting for solder to cool
Frequently Asked Questions (FAQs)
1. Can I use the same press tool for copper and PEX?
Yes, but you may need to change jaws or attachments depending on the fitting type.
2. Are press connections as durable as soldered joints?
Independent tests show press fittings often outperform soldered joints in pressure and longevity tests.
3. What’s the cost comparison between press and solder methods?
While press fittings cost 20-30% more, labor savings typically make the total job cheaper.
4. Can press tools be used on existing pipes?
Absolutely – one of the biggest advantages is the ability to make connections on wet or existing pipes.
5. Do press tools work with all PEX types?
They work with all types (A, B, C) but PEX-A requires expansion before pressing with some systems.
Conclusion
The press tool revolution has transformed plumbing for both copper and PEX press fittings, offering professionals and DIYers alike a faster, cleaner, and more reliable alternative to soldering. As these tools become more affordable and widespread, they’re quickly becoming the new standard for pipe joining.
Whether you’re working on a simple repair or major installation, investing in a quality press tool system will pay dividends in time saved and headaches avoided. Remember – always use manufacturer-approved tools and fittings for guaranteed performance.
