5/8 in. Union 45-Degree Flare, Tube to Tube
5/8 in. Union 45-Degree Flare, Tube to Tube
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The 5/8 in. Union 45-Degree Flare, Tube to Tube is a brass SAE 45° flare union fitting that allows in-line disconnection of the tubing run for service without disturbing surrounding fittings. Dezincification-resistant brass body ensures long service life in water, oil, gas, and compressed air systems.
Technical Specifications
| Specification | Value |
|---|---|
| Body Material | Brass (dezincification-resistant) |
| Connection Type | SAE 45° flare |
| Shape | Union |
| End Connections | See product title for sizes |
| Pressure Rating | 800 WOG |
| Temperature Range | −20°F to 250°F (nylon/poly) / −20°F to 366°F (brass/SS) |
Key Features
- Dezincification-resistant brass — resists corrosion in water, gas, and oil service
- Precision machined for repeatable, leak-free connections
- SAE 45° flare — metal-to-metal seal requires no sealant or thread tape
- Resists vibration, thermal cycling, and high-pressure pulsation
- Meets SAE J513; compatible with copper and aluminum refrigerant tubing
- Allows in-line service disconnection without disturbing surrounding fittings
Common Applications
Used in refrigeration line sets, HVAC equipment connections, natural gas and propane appliance connectors, and high-vibration applications where compression fittings may loosen. The metal-to-metal flare seat is the most vibration-resistant tube connection available.
Technical Resources
- SAE 45° vs. Inverted Flare — Identification Guide — Critical identification guide
- NPT vs. BSPP vs. JIC Thread Guide — Thread ID reference
- Brass Fitting Types and Sizes Guide — All fitting styles explained