227 Enterprise makes them in OD sizes from 1/4″ to 5/8″ with wall thicknesses from 0.5 mm to 0.9 mm, so there’s enough range to fit most header designs and OEM specs. Every stub goes through quality checks for dimensional accuracy before it ships — because a fraction of a millimeter matters when you’re brazing joints and expecting them to stay leak-free for years. If you’ve got a custom requirement or a specific OEM drawing, we can work to that too. At the end of the day, a copper stub is a simple part, but when it’s made right, it makes the whole system easier to build and more dependable to run. That’s what we’re aiming for with every piece we produce.
| PARAMETER | SPECIFICATION |
|---|---|
| Product | Copper Stubs |
| Application | HVAC&R Headers, VRF/VRV Systems, Heat Pumps, Chillers & Commercial Refrigeration |
| Function | Provides Secure Connections Between Refrigerant Pipelines & Header Assemblies |
| Material | Premium Refrigeration-Grade Copper |
| Outer Diameter (OD) | 1/4″ to 5/8″ |
| Wall Thickness | 0.5 mm to 0.9 mm |
| Length | Customizable as per OEM & Project Requirements |
| Construction | Precision-Engineered One-Piece Copper Stub |
| Connection Type | Brazed Copper Connection |
| Header Compatibility | Compatible with Multiple HVAC Header Configurations |
| Refrigerant Compatibility | Suitable for R410A, R32 & Other Standard Refrigerants |
| Surface Finish | Clean, Burr-Free & Ready for Brazing |
| Quality Inspection | 100% Dimensional & Visual Inspection |
| Testing | 100% Leak & Fitment Verification |
| Customization | Available as per OEM Drawings, Header Designs & Length Requirements |
| Compliance | RoHS-Compliant Manufacturing |
Copper stubs don’t get a lot of attention — they’re small, they’re tucked inside header assemblies, and most people never think about them twice. But anyone who’s dealt with a bad connection inside a header knows how quickly a small part can turn into a big problem. That’s exactly why we take them seriously.
We make every stub from refrigeration-grade copper, hold tight tolerances on dimensions, and run quality checks that don’t leave room for guesswork. The result is a part that fits right the first time, brazes cleanly, and keeps refrigerant flowing smoothly for the life of the system. Whether it’s going into a VRF header, a heat pump, a chiller, or a refrigeration rack, our stubs give you the kind of connection you can stop worrying about once it’s in.
High-flow copper fittings for balanced refrigerant division.
Inline protection against system contamination and debris.
Engineered components for reducing operational noise and vibration.
Short-length copper connectors for system integration and brazing.
Heavy-duty fittings for main line distribution branches.
Engineered for fast, balanced, and leak-proof main line splits.
Advanced distributors for precise refrigerant flow management.
Pre-fabricated joints for simplified, on-site assembly.
Durable copper joints for reliable refrigerant flow splitting.
Pre-assembled tubing modules for faster, error-free installation.