
Leak-Proof Connections for HVAC, Refrigeration & Gas Lines

Leak-Proof Connections for HVAC, Refrigeration & Gas Lines
Brass flare fittings set (flare nut + flare union/adapter) for strong, reusable, leak-proof joints—ideal for AC/refrigeration copper tubing, plumbing, and gas piping without welding or brazing.
Brass Flare Fittings are essential components used in HVAC, refrigeration, plumbing, and gas piping systems to create strong, leak-proof connections. This product covers the two most common flare fitting components: the Flare Nut (hex nut with internal threads for securing flared tubing) and the Flare Union/Adapter (double-threaded connector used to join two flared pipes). The conical/tapered seating design ensures a tight metal-to-metal seal without additional sealing materials, providing reliable performance in high-pressure applications. Manufactured from high-quality brass, these fittings offer excellent strength, corrosion resistance, and long service life.
Material
High-Quality Brass
Where this product is commonly used — from standard assemblies to custom requirements.
Built for accurate fitment, consistent finishing, and reliable performance in real‑world applications.
Benefits
Standard technical information. Custom specs are available on request.
Product Name
Brass Flare Fittings (Flare Nut & Flare Union)
Material
High-Quality Brass
Type
Flare Nut + Flare Union/Adapter (Flare Fittings)
Design
Conical/tapered seating for tight metal-to-metal sealing
Available Sizes
1/4" · 3/8" · 1/2" · 5/8"
Application
HVAC, refrigeration, plumbing & gas piping connections
Also Known As
Brass Flare Nut · Flare Union · Flare Adapter · AC Flare Fittings
| Product Name | Brass Flare Fittings (Flare Nut & Flare Union) |
| Material | High-Quality Brass |
| Type | Flare Nut + Flare Union/Adapter (Flare Fittings) |
| Design | Conical/tapered seating for tight metal-to-metal sealing |
| Available Sizes | 1/4" · 3/8" · 1/2" · 5/8" |
| Application | HVAC, refrigeration, plumbing & gas piping connections |
| Also Known As | Brass Flare Nut · Flare Union · Flare Adapter · AC Flare Fittings |
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