PATIKIL 1 Brass Flare Tube Adapter, SAE 45-Degree

For a flare-tube connection in HVAC, refrigeration, automotive or other listed piping applications, this PATIKIL brass adapter provides an SAE 45-degree flare connection. Its brass construction and hex section support a practical, wrench-tightened installation. Need to join flared tubing without welding? This fitting is designed for that connection style.

Why it makes sense

A flare adapter offers a different approach from joining pipe by welding: the tube is flared and secured to the fitting, making it useful for compatible copper, brass, aluminium and other hydraulic tubing. The brass body is described as durable and corrosion-resistant, with a stated operating temperature range of -53℃ to 121℃. Clear, standard threads are intended to help form a secure connection and avoid leakage, while the hex section gives a spanner a firm surface for tightening.

This format is suited to connections in air conditioning, HVAC, refrigeration, hydraulic and pneumatic systems, as well as listed automotive, humidifier, grill and fire-pit applications. Buyers generally highlight the fitting’s function and fit, while feedback on size accuracy is mixed. Matching the fitting’s flare size to the tube’s outside diameter is therefore an important part of selecting the right connection.

The essentials

• Type: Brass flare tube adapter
• Connection: SAE 45-degree flare
• Material: Brass
• Colour: Brass
• Temperature range: -53℃ to 121℃
• Quantity: 1 fitting

The flare-size description refers to the outside diameter of the tube being connected, not the thread size. This distinction matters when choosing a fitting: compare the tube’s outside diameter with the required flare connection, rather than relying on the thread measurement alone. The product information lists differing size descriptions, so use the required tube and connection dimensions to identify the matching fitting before installation.

Usage tips

For installation, place the appropriate brass nuts on the corresponding copper tubes, flare the tube ends, then attach and tighten the connection with a spanner. The product instructions identify the brass nuts as separate from the fitting. Use the fitting with tubing that can be flared and is compatible with the connection. PTFE tape is not advised for flare tube fittings, the flare connection is made at the prepared tube and fitting surfaces.

A practical example is connecting compatible flared tubing as part of an HVAC or refrigeration line: prepare the tube ends, seat them at the flare connections and tighten the fitting with a spanner. This gives a mechanical, welding-free connection approach for the listed applications.

What to clarify

What does the flare size refer to? It refers to the outside diameter of the tube being connected, not the actual thread size. Use the tube diameter when checking whether the connection suits your line.

Does installation require welding? No. The SAE 45-degree flare connection is designed for a welding-free joint. The tube ends need to be flared and secured to the fitting.

What tubing materials can it be used with? The product information lists copper, brass, aluminium and other hydraulic tubes that can be flared. The tube must be suitable for a flare connection.

Final verdict

This PATIKIL brass adapter is suited to projects that call for an SAE 45-degree flare connection across HVAC, refrigeration, hydraulic, pneumatic or other listed systems. Its brass construction, wrench-friendly hex section and welding-free installation make it a practical fitting for joining compatible flared tubing. Match the tube’s outside diameter to the required flare connection for a fitting choice that supports the intended application.