PEX piping has transformed modern plumbing by making installations faster, easier, and more cost-effective. But to take full advantage of PEX, you need the right tools. Whether you're a professional plumber or a DIY enthusiast, using proper equipment ensures secure connections, leak-free systems, and efficient workflow.
In this article, we’ll introduce the essential tools required for working with PEX piping, explain their functions, and offer guidance on how to choose the right ones for your project.
Frequently Asked Questions (FAQ)
1. What tools are required for PEX piping installation?
The most common tools include pipe cutters, crimping tools, expansion tools, clamp tools, and pipe support accessories.
2. Are PEX tools different for PEX-A and PEX-B?
Yes. PEX-A typically requires expansion tools, while PEX-B often uses crimp or clamp tools.
3. Can I install PEX piping without special tools?
No. Proper tools are necessary to ensure secure, watertight connections and meet code requirements.
4. Are PEX tools expensive?
Basic kits are affordable for DIYers. Professional-grade tools cost more but are durable and efficient for larger projects.
5. Can I reuse PEX fittings or rings?
No. Once installed, most fittings and rings are not reusable. Always use new ones during replacement or rework.
Overview of PEX Piping Tools
Installing PEX piping involves more than just cutting and connecting. A complete toolset helps ensure secure joints, proper pipe handling, and adherence to industry standards. Here's a breakdown of essential tools:
1. PEX Pipe Cutter
A clean, straight cut is crucial when working with PEX. A PEX pipe cutter slices through the pipe cleanly without crushing it.
- Function: Cuts PEX tubing evenly to allow a tight fit with fittings.
- Why it’s important: Uneven or jagged cuts can cause leaks or weak seals.
- Tip: Choose a ratcheting cutter for thicker pipe or frequent use.
2. Crimp Tool (For PEX-B Systems)
Crimping tools are essential when using copper crimp rings in PEX-B systems.
- Function: Compresses copper rings around the pipe and fitting.
- Compatibility: Works with PEX-B and crimp-style connections.
- Check: Use a crimp ring gauge to verify proper installation.
- Variants: Available in manual, ratcheting, or hydraulic styles.
3. Clamp Tool (For Stainless Steel Clamps)
Instead of copper rings, some systems use stainless steel clamp rings.
- Function: Tightens stainless steel clamps around PEX and fittings.
- Versatility: Works across various PEX sizes using a single tool.
- Advantage: Easier to use in tight spaces than some crimp tools.
4. Expansion Tool (For PEX-A Systems)
PEX-A piping uses expansion fittings that require an expansion tool.
- Function: Expands the pipe temporarily to fit over the connector.
- Unique Benefit: Creates a strong bond as the pipe contracts over the fitting.
- Popular Brands: Milwaukee, Uponor, and Wirsbo are leaders in expansion systems.
- Note: Not compatible with PEX-B or PEX-C.
5. Pipe De-crimping Tool (Removal Tool)
If a connection needs to be redone, a de-crimping tool helps remove old rings and fittings.
- Function: Cuts off old crimp rings without damaging the pipe (if salvageable).
- Important: Often used for repairs or mistakes during installation.
- Note: Not all components are reusable after removal.
6. Go/No-Go Gauge
After crimping, a Go/No-Go gauge checks the quality of the connection.
- Function: Confirms if the crimp ring was compressed properly.
- Why it matters: Helps avoid future leaks caused by improper pressure.
- Easy to use: Slide the gauge over the crimped ring for immediate feedback.
7. PEX Fitting Removal Tool
This tool is helpful when you need to remove push-fit (e.g., SharkBite) fittings.
- Function: Releases push-to-connect fittings without damaging them.
- Compatible with: Various brands and pipe sizes.
- Benefit: Saves money on repairs by preserving reusable fittings.
8. Pipe Support Tools and Suspension Clips
PEX must be properly supported, especially in long runs.
- Pipe clamps and suspension clips keep PEX securely mounted and free from movement or abrasion.
- Plastic or rubber-coated options help prevent damage.
- Spacing guidelines: Usually every 32 inches for horizontal runs and every 6 feet for vertical.
9. Stub-Out Brackets and Bend Supports
These tools help PEX pipe exit walls neatly and maintain shape.
- Stub-out brackets anchor the pipe behind drywall for clean, professional appearances.
- Bend supports allow you to make 90-degree turns without fittings, reducing potential leak points.
10. PEX Tool Kits
For beginners or small-scale use, PEX tool kits offer a complete set.
- What’s included: Cutters, crimpers or clamp tools, gauges, and more.
- Best for: DIY homeowners, apprentices, and maintenance teams.
- Tip: Look for adjustable heads and multi-size tools for added flexibility.
Choosing the Right Tool for Your PEX Type
| Tool Type | PEX-A | PEX-B | PEX-C |
|---|---|---|---|
| Expansion Tool | ✅ Required | ❌ Not Compatible | ❌ Not Common |
| Crimp Tool + Copper Ring | ❌ Not Used | ✅ Common Choice | ✅ Possible |
| Clamp Tool + SS Clamp | ❌ Not Used | ✅ Widely Used | ✅ Used Occasionally |
| Push-Fit Removal Tool | ✅ Optional | ✅ Optional | ✅ Optional |
| Go/No-Go Gauge | ❌ For crimp/clamp only | ✅ Essential | ✅ Essential |
Choosing the wrong tool can lead to poor connections, wasted materials, and future repair work. Always match the tool to your pipe type and connection method.
Safety and Installation Tips
- Always cut squarely for secure fitting contact.
- Don’t over-crimp — use a gauge to confirm every connection.
- Label hot and cold lines with red and blue tubing.
- Use protective sleeves when passing PEX through studs or concrete.
- Keep PEX away from open flame or high-heat sources like water heaters.
Following these basic practices helps maintain system performance and safety.
Conclusion
Working with PEX piping is fast and convenient—when you have the right tools. Whether you're using PEX-A with expansion fittings or PEX-B with crimp or clamp rings, each method requires specific tools for secure, lasting installations.
Investing in a good PEX tool set not only ensures leak-free plumbing but also saves you time, money, and stress. From pipe cutters and crimp tools to gauges and brackets, each tool plays a vital role in making your project successful.
By understanding the function of each tool and how to choose the right ones, you’ll be ready to tackle any PEX plumbing job with confidence.
