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Flared tube fittings are essential components for creating reliable, leak-free connections in various fluid and gas systems. Selecting the appropriate fitting ensures the integrity and safety of your industrial applications, preventing costly failures and downtime. This guide will help you navigate the key considerations for choosing the best flared tube fittings for your needs.
Specification: Material: Brass;Color: Brass;Total Size: 34x21mm/1.34x0.83inch(L*W);Flare Tube OD Size:3/8 female flare X 1/2 male flare; Packing List: 1Pcs x Brass Flare Tube Fitting
Advantage: The tube fitting is made from thickened brass, strong, durable, anti-corrosion, and with high and low-temperature resistance. It can be used under a temperature range: -53℃ to 121℃ (-65 to 250 degrees Fahrenheit); Clear and standard threads...
Application: This brass flare tube fitting is widely used in pipe connections for air conditioning, hydraulic and pneumatic systems, HVAC, automotive, humidifiers, grills, and fire pit. Also, the union fitting is suitable for fuel, gas systems, and...
Instruction: Connect the male flare end to a flared pipe with brass nut(not included) or connect it to a female flare end with same thread size directly. Connect the female flare end to a male flare end with same thread size directly.
Note: Please confirm your tube or pipe size before ordering; The flare size of the connector refers to the OD size of the pipes to be connected, not the actual thread size.
[Material]: Our flare gasket is crafted from copper. It is wear-resistant, exhibits hardness, and is not prone to deformation, ensuring long-lasting service. It has excellent ductility and corrosion resistance and is beneficial for metal-to-metal sealing
[45 Degree Flare]: The copper flare gasket is used for sealing 45-degree flare pipe fitting. Widely used in air conditioners, refrigeration machines, gas, and hydraulic applications
[Widely Used]: The flare gasket is applicable for use with brass, aluminum, chopper, and welded steel hydraulic tubing that can be flared, including flared copper pipes, flare nuts, flare plugs, and flare adapters, among others
[Note]: Please check the size before purchasing. Ensuring the correct size is vital as it determines whether the item will fit well and function optimally
【Flare Thread】The positive nature of the connection with the flare on the tube clamped between the nut and the body makes for extreme dependability and safety.
【Material】Heavy Duty Brass, firm and durable. Brass for corrosion resistance, high temperature ductility and low magnetic permeability.
【Temperature Range】From -53℃ to 121℃ (-65℉ to 250℉).
【Use】The flare threaded connects to a flared tube or fitting, and is suitable for use with fuel and gas systems. Use with fuel and gas systems, plumbing, refrigeration, and vacuum applications.
★Suitable for the outer diameter of the pipe:1/8"3/16"1/4" 5/16" 3/8" 1/2",Used with plastic,copper, brass or aluminum tubing.
★Material: Brass.Corrosion resistance, ductility at high temperatures, and low magnetic permeability.
★Easy to Use: These fittings are easy to assemble requiring no soldering, flaring or deburring. Standard Compression Fittings are suitable for a wide variety of applications.It can keeps plastic tube from collapsing when tightened. And prevent leakage.
SECURE, LEAK-FREE CONNECTION: Provides reliable sealing for fuel, oil, LP, and natural gas applications, ensuring a stable joint even in high-pressure, vibrating environments. Ideal for SAE flare connections and flare fittings.
PREMIUM BRASS CONSTRUCTION: Crafted from high-quality brass for superior corrosion resistance, high-temperature ductility, and long-lasting durability. A robust flare nut solution and effective flare tube fitting alternative.
VERSATILE COMPATIBILITY: Works seamlessly with aluminum, copper, brass, and welded steel tubing, making it perfect for plumbing and HVAC projects. A top choice among hvac flare fittings and copper tube fittings.
ROBUST PERFORMANCE: Engineered to withstand up to 150 PSI and operate within a temperature range of -65°F to +250°F, ensuring dependable performance under demanding conditions. Excellent for flared tube fittings in critical applications.
EASY INSTALLATION & REUSABILITY: Features precise thread specifications for a secure fit, enabling quick installation and effortless maintenance for new builds and repairs. An ideal, reusable design that enhances flare fittings efficiency.
【Material】: Made of premium solid brass with a longer service life, stronger and more durable than iron and iron galvanized pipe fittings.
【Advantage】: The positive nature of the connection with the flare on the tube clamped between the nut and the body makes for extreme dependability and safety.
【Application】: LP and natural gas, flammable liquids (special order), instrumental, refrigeration. power steering, hydraulic and pneumatic systems.Not for use in potable Drinking water applications.
【SIZE】:1/2" female flare by 1/2" female flare Swivel union.
【Package Include】: 2 PCS 1/2" female Flare by 1/2" female flare adapter. Comes with 1 year guarantee.
Advantage: The copper pipe fitting is made of pure copper material, with good thermal conductivity. With smooth flare surface and no burrs.
Instruction: Cleaning the surface first, then welding one end with copper pipe, and connect the flared end to a flare connector.
Application: This copper tube fitting is flared on the one end,suitable for copper pipe flare connection, it is widely used in HVAC, refrigeration, and plumbing systems.
High Quality Material: Brake line fitting is made of high quality brass with anti-rust and anti-corrosion technology, ductile at high temperatures and low magnetic properties. Brake pipe fitting bubbles are strong and reliable for long term use
Package and Size: Package contains 12 brake line couplers, including 4 fittings and 8 nuts, the fittings and nuts are 7/16-24 threads (regular 1/4 inch pipe fitting size). Please confirm the size details according to the picture before purchase
Inverted and Double Flared Union: Any 2 (1/4-inch) brake lines can be easily connected to brake line adapter fittings for common inverted flare and double flare sizes for 1/4-inch steel, poly-coated or copper brake lines
Easy to Install: First clean the surface of the brake pipe, then put nuts on each end of the two brake lines, and finally connect the two nuts with the brake line union connector fitting, and tighten it with a wrench to fix it
Widely Compatible: 7/16-24 threaded brake fittings typically fit all common inverted flare/double flare sizes of 1/4-inch brake line tubing. These 1/4-inch brake line unions are great accessories to share with your family and friends
Package Including: This package includes 5 piece brass SAE 45 degree flare plugs in 5 sizes: 1/4", 5/16", 3/8", 1/2", 5/8"
Solid Connection: SAE 45 degree flare tube fitting can provide a reliable connection with the flare on the pipe clamped between the nut and the body, safe and reliable, tight and stable
Reliable Material: The SAE 45 degree flare tube fitting is made of quality brass,sturdy and reliable,threads are deep and accurate,corrosion resistance,low magnetic permeability and high temperature ductility
Satisfactory Functions: SAE 45 degree flare tube fitting seal plugs can work under harsh conditions,can effectively block and prevent leaks.Designed for high pressure use and have good resistance to mechanical pulling
Widely Used: This brass pipe plug is suitable for terminating/closing pipe end, gas pipelines, hydraulic and refrigeration systems,RV furnaces, water heaters and more. It can be used with brass, copper, aluminum and stainless steel tubes which can be...
Last update on 2026-08-31 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Flared Tube Fittings
Understanding Flared Fittings
Flared fittings create a seal by deforming a tube end into a cone shape that mates with the fitting body. This mechanical seal is robust and less prone to vibration loosening than some other connection types. They are commonly used in high-pressure, high-vibration applications found in automotive, hydraulic, and pneumatic systems.
Material Considerations
The material of the fitting is crucial for compatibility with the fluid being conveyed and the operating environment. Common materials include:
Brass: Offers good corrosion resistance and is cost-effective for many general applications.
Stainless Steel: Provides superior strength, durability, and resistance to corrosion, making it ideal for harsh environments and aggressive fluids.
Steel (Plated): Often used for general hydraulic applications, offering a balance of strength and cost. Plating enhances corrosion resistance.
Types of Flared Fittings
There are several common configurations to consider:
SAE Double Flare: The standard for most automotive and light hydraulic applications in North America.
Inverted Flare: Features a flare on the inside of the fitting body, often used in automotive brake and fuel lines.
Single Flare: Less common for high-pressure systems but may be found in some low-pressure applications.
Sizing and Compatibility
Proper sizing is paramount. Flared fittings are typically specified by the outside diameter of the tubing they connect. Ensure the fitting size matches the tubing diameter precisely. Also, verify that the fitting's thread size and type (e.g., SAE, NPT) are compatible with the components it will connect to. Consult manufacturer specifications for detailed compatibility information.
Installation Best Practices
Proper installation is key to a leak-free seal. Ensure the tube end is properly flared using the correct tool, creating a uniform cone. The flare should be free of cracks or imperfections. When assembling, use two wrenches – one to hold the fitting body and the other to tighten the nut, preventing stress on the tubing.
Frequently Asked Questions
What is the difference between single and double flare fittings?
A single flare has a single cone, while a double flare creates a double-walled cone on the tube end. Double flares are generally stronger, more durable, and provide a more reliable seal, making them preferred for higher pressure and critical applications.
Can I use brass fittings with all types of fluids?
Brass fittings are suitable for many common fluids like water, air, and certain oils. However, they may not be ideal for aggressive chemicals or high-purity systems where stainless steel might be a better choice due to its superior chemical resistance.
How do I determine the correct size for a flared fitting?
Flared fitting sizes are typically based on the outside diameter of the tubing you are connecting. You need to measure the tubing's outer diameter accurately and select a fitting designed for that specific tubing size.
What tools are needed to install flared fittings?
You will need a tubing cutter to ensure a clean, square cut, a flaring tool to create the appropriate flare on the tube end, and two wrenches for assembly to properly tighten the fitting without damaging the tubing.
Are flared fittings suitable for very high temperatures?
The temperature rating of flared fittings depends heavily on the material and the specific design. Stainless steel fittings generally offer better performance at higher temperatures compared to brass or plated steel.
How tight should I make a flared fitting connection?
Tighten the fitting until it feels snug, then typically an additional 1/2 to 3/4 turn is sufficient for most connections. Over-tightening can damage the flare or the fitting, leading to leaks. It's best to consult the manufacturer's recommendations.
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