Copper Flare Fittings: Quick Reference

Flare x Copper Tube Compression Adapter Guide

The Flare x Copper Tube Compression Adapter is a versatile plumbing component that provides for secure and reliable connections in different plumbing projects. It is designed to join flare fittings and copper tubing, providing a leak-proof seal and ensuring the proper flow of liquids and gases. This informative guide can provide an introduction to the functions, specifications, and applications of the flared copper fittings.

Understanding Flare Fittings

Flare fittings are necessary components in plumbing systems which allow secure connections between pipes and tubing. These fittings come with a 45° flare on one end, which allows for a tight and reliable connection with all the corresponding flare on the tubing. Flare fittings are widely used in a variety of applications because of their ability to resist vibration and mechanical pull-out.

One everyday sort of flare fitting will be the SAE 45° flare, which follows the specifications set by the Society of Automotive Engineers. These fittings have a 45° flare angle and are frequently used in automotive and hydraulic systems. They satisfy the functional requirements of SAE J512 and J513, ensuring their reliability and compatibility within these applications.

In addition to the SAE 45° flare, another kind of flare fitting will be the inverted flare. This fitting features a cone-shaped flare on the fitting end, providing a safe and secure connection using the corresponding inverted flare on the tubing. Inverted flare fittings are a cost-effective option and commonly used in automotive brake and fuel systems.

Features of Flare Fittings

Flare fittings offer several advantages which make them a favorite choice in plumbing systems:

  • Potential to deal with vibration: The 45° flare design of these fittings helps them withstand vibrations, ensuring the integrity of the connection even during dynamic environments.
  • Mechanical pull-out resistance: Flare fittings give a secure connection that resists pulling forces, preventing accidental disconnection.
  • Wide variety of applications: Flare fittings are versatile and can be used in various plumbing systems, including automotive, hydraulic, and gas applications.
  • UL Listed: Many flare fittings are UL Listed, meaning they are tested and certified by Underwriters Laboratories, a dependable safety organization.

Examples of Flare Fittings

Below are a few examples of flare fittings:

Fitting Type Description
Straight Flare A straight fitting with 45° flare angles on ends, utilized for connecting two flare fittings or perhaps a flare fitting and tubing.
Union Flare A fitting with two flare ends joined with a union, making it possible for easy disconnection and reconnection of pipes or tubing.
Elbow Flare An angled fitting with a flare end, employed for making 90° or 45° bends in plumbing systems.

These are simply a few examples of the many types of flare fittings available, each designed for specific applications and installation requirements.

In conclusion, flare fittings are very important components in plumbing systems because of the secure connections, effectiveness against vibration, and wide variety of applications. Whether it’s the SAE 45° flare or the inverted flare, these fittings provide reliable and leak-free connections, which makes them a preferred choice in different plumbing projects.

Flare to Compression Adapter Options

The Flare x Copper Tube Compression Adapter offers a variety of options to accommodate different plumbing needs. These options include:

  1. Flare to male NPT
  2. Flare to flare
  3. Flare to female NPT
  4. Flare to metric

One notable feature of those adapters is definitely the steel nut option, which supplies additional durability and strength. This ensures a good and reliable connection, even in demanding plumbing applications.

Furthermore, some kinds of the Flare x Copper Tube Compression Adapter include a Teflon seal around the valve core. This seal enhances the leak-proof capabilities of the adapter, providing you with peace of mind and confidence in its performance.

It’s also worth mentioning that these adapters are machined to ARI Standards, guaranteeing precision and quality in their construction. This ensures compatibility with industry standards and enables seamless integration with existing plumbing systems.

Lastly, the finger-tight quick seal cap is an important feature from the Flare x Copper Tube Compression Adapter. This cap provides for simple and easy , quick installation without making use of additional tools. It ensures a good and secure connection, further improving the reliability and performance from the adapter.

Flare to Compression Adapter Options

Adapter Type Features
Flare to male NPT Steel nut option, Teflon seal, machined to ARI Standards, finger-tight quick seal cap
Flare to flare Steel nut option, Teflon seal, machined to ARI Standards, finger-tight quick seal cap
Flare to female NPT Steel nut option, Teflon seal, machined to ARI Standards, finger-tight quick seal cap
Flare to metric Steel nut option, Teflon seal, machined to ARI Standards, finger-tight quick seal cap

To sum up, the Flare x Copper Tube Compression Adapter offers a variety of options to meet the needs of different plumbing requirements. With features like the steel nut option, Teflon seal, and machined to ARI Standards, these adapters provide secure, durable, and high-performance connections. The finger-tight quick seal cap adds convenience towards the installation process. Select the Flare x Copper Tube Compression Adapter for reliable and leak-free plumbing connections.

Working Pressure Ranges and Temperature Ranges

The Flare x Copper Tube Compression Adapter provides reliable connections in plumbing projects, with working pressure ranges that vary depending on the temperature and tubing size. It is important to ensure that the temperature and tubing size are within the specified ranges to keep the integrity of the connection. Here is an introduction to the working pressure ranges at 73°F:

Tubing Size Working Pressure Range (PSI)
1/8″ 2800
1/4″ 2000
3/8″ 1800
1/2″ 1600
5/8″ 1400
3/4″ 1200
7/8″ 450

The Flare x Copper Tube Compression Adapter also offers a large temperature selection of -65°F to 250°F, which makes it ideal for various applications in plumbing projects.

Assembly Instructions for Flare Fittings

Proper assembly of flare fittings is essential to make certain a safe and secure and leak-proof connection. Follow these recommended assembly instructions to attain optimal results:

  1. Inspect the flare fitting and the tubing for virtually any signs of damage or imperfections.

  2. Make sure that the flare fitting and the tubing are neat and free from dirt, debris, or any foreign substances.

  3. Employing a tubing cutter, cut the tubing to the desired length ensuring a clean and square cut.

  4. Remove any burrs or sharp edges through the tubing using a deburring tool or even a file.

  5. Slide the flare nut onto the tubing, accompanied by the cone-shaped flare sleeve.

  6. Carefully insert the tubing into the fitting body until it reaches the bottom.

  7. Tighten the flare nut with a flare nut wrench or even a suitable wrench, ensuring not to overtighten.

  8. Inspect the connection to ensure that the flare is properly formed and the tubing is securely located in place.

  9. Carry out a leakage test by pressurizing the system and checking for just about any indications of leaks.

  10. If no leaks are detected, the assembly is complete and ready to use.

Following these assembly instructions will allow you to gain a reliable and durable connection together with your flare fittings.

Step Assembly Instructions for Flare Fittings
1 Inspect the flare fitting and the tubing for just about any warning signs of damage or imperfections.
2 Make sure that both flare fitting and also the tubing are neat and free from dirt, debris, or any foreign substances.
3 Using a tubing cutter, cut the tubing for the desired length ensuring a neat and square cut.
4 Remove any burrs or sharp edges from the tubing employing a deburring tool or a file.
5 Slide the flare nut on the tubing, then the cone-shaped flare sleeve.
6 Carefully insert the tubing to the fitting body until it reaches the base.
7 Tighten the flare nut with a flare nut wrench or a suitable wrench, ensuring never to overtighten.
8 Inspect the connection to make sure that the flare is properly formed as well as the tubing is securely locked in place.
9 Conduct a leakage test by pressurizing the program and checking for any indications of leaks.
10 If no leaks are detected, the assembly is done and prepared to be used.

Sizing and Nomenclature of Flare Fittings

Flare fittings play an important role in plumbing projects, and understanding their sizing and nomenclature is important for choosing the proper fitting for your needs. Flare fittings are sized in accordance with the numbers of sixteenths of your inch within the tube outer diameter (O.D.). Let’s breakdown the sizing and nomenclature to simplify your selection process.


The initial series of numbers and letters within the part number identify the design and type in the flare fitting. The next series of numbers represents the dimensions, using sixteenths of an inch. As an example, a part number like 1 49 F – 6 – 4 indicates a forging style, a 3/8″ (6/16) tube O.D. size, along with a 1/4″ (4/16) pipe size.


The nomenclature of flare fittings helps you to identify the specific characteristics and dimensions of each fitting. Comprehending the codes utilized in the part number ensures accurate selection and seamless ordering. Here’s a synopsis:

Nomenclature Description
Style and kind Identifies the particular style and kind of flare fitting
Tube O.D. Size Represents the size of the outer diameter in the tube, indicated in sixteenths of your inch
Pipe Size Indicates the dimensions of the pipe for which the flare fitting is made, also measured in sixteenths of your inch

By familiarizing yourself using the sizing and nomenclature of flare fittings, you are able to confidently select the right fitting for your plumbing project and make sure a good and reliable connection.

Advantages and Uses of Flare Fittings

Flare fittings are popular in plumbing projects due to their numerous advantages and versatile applications. These fittings offer several positive aspects that will make them a preferred selection for professionals in the market.

Benefits of Flare Fittings:

  • Potential to deal with Mechanical Pull-Out: Flare fittings are created to resist mechanical pull-out, ensuring a secure and reliable connection. This will make them suitable for applications where vibration or movement may occur.
  • Repeated Assembly and Disassembly: Flare fittings can be easily assembled and disassembled many times without compromising integrity. This flexibility provides for easy adjustments, repairs, or modifications without resorting to replacement.
  • High-Quality Brass Materials: Flare fittings are manufactured from high-quality brass materials, guaranteeing durability and longevity. Brass is recognized for its corrosion resistance, making these fittings suitable for various plumbing applications.

Uses of Flare Fittings:

“Flare fittings are commonly used in a range of plumbing applications, due to their reliability and leak-proof characteristics.”

Here are a few common applications where flare fittings are widely employed:

  1. Flammable Liquid Applications: Flare fittings are listed with Underwriter’s Laboratories for flammable liquid applications, causing them to be a safe and secure and trusted choice for projects involving the transportation or distribution of flammable substances.
  2. Marine Applications: Due to their resistance to mechanical pull-out and corrosion resistance, flare fittings are popular in marine plumbing systems, ensuring reliable connections in harsh saltwater environments.
  3. Refrigeration Applications: Flare fittings play an important role in refrigeration systems, providing leak-proof connections for refrigerant lines, ensuring optimal performance and efficiency.
  4. Gas Applications: Flare fittings are also extensively used in gas plumbing systems, offering reliable and secure connections for the distribution of gases, including natural gas or propane.
  5. Hydraulic Tubing Applications: Flare fittings are suitable for use with some other materials, including copper, brass, aluminum, and welded steel hydraulic tubing. Their versatility enables them to be employed in diverse hydraulic systems.
  6. Hard-to-Hold Liquids and Gases: Flare fittings were created for hard-to-hold liquids and gases, providing a trusted and leak-proof connection in challenging applications where containment is vital.

To summarize, flare fittings offer multiple advantages, including effectiveness against mechanical pull-out, ease of assembly and disassembly, and use of high-quality brass materials. These fittings find widespread applications in flammable liquid, marine, refrigeration, gas, hydraulic, and challenging liquid and gas plumbing systems. Their versatility, reliability, and leak-proof connections make them an important component for a variety of plumbing projects.

Advantages Applications
Effectiveness against mechanical pull-out Flammable liquid applications
Repeated assembly and disassembly Marine applications
Produced from high-quality brass materials Refrigeration applications
Gas applications
Hydraulic tubing applications
Hard-to-hold liquids and gases

Additional Options and Pricing

As well as the standard configurations, flare fittings offer an array of additional options to fulfill specific plumbing requirements. These options include:

  1. Bulkheads: Used for creating secure connections in confined spaces or through barriers.
  2. Auxiliary Fittings: Provide flexibility and adaptability in complex plumbing systems.
  3. Special Fittings: Customizable to fulfill unique project specifications.
  4. UL Stamped Fittings: Ensuring compliance with rigorous quality and safety standards.

When choosing flare fittings, it is essential to take into account the pricing of non-stock items and consult the price list supplied by the maker. For special configurations, it is strongly recommended to submit a print or sketch to find out about pricing and availability. Please note that prices and availability are susceptible to change without prior notice, so it is best to monitor the most recent information.

Flare Fittings Pricing Comparison

Configuration Pricing
Standard Flare Fitting $5.99
Bulkhead Flare Fitting $8.99
Auxiliary Flare Fitting $6.99
Special Flare Fitting Custom Pricing

Note: The pricing shown is perfect for illustrative purposes only and might vary dependant upon the manufacturer and distributor.

Streamline ACR Press System

The Streamline ACR Press Method is revolutionizing the plumbing industry using its cutting-edge technology and innovative design. Engineered to offer superior performance and reliability, this system incorporates the latest advancements to provide exceptional leads to flare fittings.

The standout feature from the Streamline ACR Press System is its Two Ring Advanced Press (T.R.A.P.) Technology. This groundbreaking technology ensures a stronger and a lot more secure seal by creating 200% more surface contact in between the fitting and also the tubing. With T.R.A.P. Technology, you can have complete confidence inside the integrity of the connections.

The DualSeal Ring Design of the ACR Press System further enhances its sealing capabilities. This design guarantees a solid and reliable seal, minimizing the potential risk of leaks and ensuring long-lasting performance. Additionally, the system includes the TrapZone Leak Barrier, an extra layer of protection that provides an additional amount of security against potential leaks.

When it comes to joint compression and sealing performance, the Streamline ACR Press System delivers exceptional results. The Force360 Press Contour technology ensures a more uniform compression, promoting a dependable and tight seal every time. Furthermore, the Tri-Lock Press Profile enhances joint strength, making the device highly durable and resistant against any mechanical stress.

Compatibility is key in terms of plumbing systems, and also the Streamline ACR Press System excels in this region. It works with R410A along with other commonly used refrigerant gases and oils, which makes it suitable for a wide range of applications. Whether you’re working on residential or commercial projects, this technique was created to meet your particular needs.

As a evidence of its quality and durability, the Streamline ACR Press System features a 10-year limited warranty against defects in material and workmanship. This warranty offers peace of mind and helps to ensure that you’re buying a reliable and long-lasting solution to your plumbing needs.

In Closing

The Flare x Copper Tube Compression Adapter is an essential component for secure and reliable connections in plumbing projects. Its versatile options, easy assembly instructions, and industry-leading innovations ensure it is the ideal option for plumbers and contractors alike.

With all the Flare x Copper Tube Compression Adapter, you can achieve a leak-proof seal and ensure the correct flow of liquids and gases. If you are concentrating on residential or commercial plumbing projects, this adapter provides the durability and gratification needed to get the job done right.

By incorporating the Flare x Copper Tube Compression Adapter into your plumbing projects, you may have reassurance realizing that your connections are secure and reliable. Bid farewell to leaks and inefficient flow, and hello to some plumbing system that performs at its best.

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