Quick and Easy 3/8 Flare Fittings

Flare x Copper Tube Compression Adapter Guide

The Flare x Copper Tube Compression Adapter is a versatile plumbing factor that enables secure and reliable connections in a variety of plumbing projects. It is made to join flare fittings and copper tubing, providing a leak-proof seal and ensuring the proper flow of liquids and gases. The following information will give you a review of the features, specifications, and applications of the flared copper fittings.

Understanding Flare Fittings

Flare fittings are crucial components in plumbing systems that enable secure connections between pipes and tubing. These fittings feature a 45° flare on one end, that enables to get a tight and reliable connection with the corresponding flare in the tubing. Flare fittings are popular in a variety of applications due to their ability to resist vibration and mechanical pull-out.

One common type of flare fitting is the SAE 45° flare, which follows the specifications set through the Society of Automotive Engineers. These fittings have a 45° flare angle and are commonly 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 type of flare fitting will be the inverted flare. This fitting includes a cone-shaped flare in the fitting end, providing a good connection with all the corresponding inverted flare in the tubing. Inverted flare fittings are an economical option and frequently used in automotive brake and fuel systems.

Advantages of Flare Fittings

Flare fittings offer several advantages that make them a popular choice in plumbing systems:

  • Effectiveness against vibration: The 45° flare design of those fittings helps them withstand vibrations, ensuring the integrity of the connection even in dynamic environments.
  • Mechanical pull-out resistance: Flare fittings offer a secure connection that resists pulling forces, preventing accidental disconnection.
  • Great deal of applications: Flare fittings are versatile and can be used in different 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 reliable safety organization.

Types of Flare Fittings

Here are some samples of flare fittings:

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

These are just several examples of many types of flare fittings available, each created for specific applications and installation requirements.

In summary, flare fittings are essential components in plumbing systems because of their secure connections, resistance to vibration, and great deal of applications. Whether it’s the SAE 45° flare or even the inverted flare, these fittings provide reliable and leak-free connections, causing them to be a preferred choice in a variety of plumbing projects.

Flare to Compression Adapter Options

The Flare x Copper Tube Compression Adapter offers a range of options to suit 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 will be the steel nut option, which supplies additional strength and durability. This ensures a good and reliable connection, even in demanding plumbing applications.

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

It’s also worth mentioning 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 in the Flare x Copper Tube Compression Adapter. This cap provides for simple and quick installation without making use of additional tools. It ensures a strict and secure connection, further enhancing the reliability and gratification in 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 number of options to focus on 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 to the installation process. Choose 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 dependant upon the temperature and tubing size. It is crucial to make sure that the temperature and tubing size are inside the specified ranges to keep up the integrity in the connection. The following is an overview of 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 even offers a broad temperature variety of -65°F to 250°F, rendering it appropriate for various applications in plumbing projects.

Assembly Instructions for Flare Fittings

Proper assembly of flare fittings is essential to ensure a secure and leak-proof connection. Follow these recommended assembly instructions to achieve optimal results:

  1. Inspect the flare fitting as well as the tubing for just about any indications of damage or imperfections.

  2. Make certain that the flare fitting as well as the tubing are clean and free from dirt, debris, or any foreign substances.

  3. Utilizing a tubing cutter, cut the tubing to the desired length ensuring a neat and square cut.

  4. Remove any burrs or sharp edges from your tubing utilizing a deburring tool or a file.

  5. Slide the flare nut to the tubing, followed 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 as well as the tubing is securely held in place.

  9. Perform a leakage test by pressurizing the system and checking for virtually any warning signs of leaks.

  10. If no leaks are detected, the assembly is done and prepared to be used.

Following these assembly instructions can help you gain a reliable and sturdy connection along with your flare fittings.

Step Assembly Instructions for Flare Fittings
1 Inspect the flare fitting and also the tubing for any signs of damage or imperfections.
2 Ensure that both flare fitting and the tubing are clean and free from dirt, debris, or any foreign substances.
3 Utilizing a tubing cutter, cut the tubing for the desired length ensuring a clean and square cut.
4 Remove any burrs or sharp edges from your tubing using a deburring tool or perhaps a file.
5 Slide the flare nut on the tubing, accompanied by the cone-shaped flare sleeve.
6 Carefully insert the tubing in to the fitting body until it reaches the bottom.
7 Tighten the flare nut using a flare nut wrench or a suitable wrench, making sure never to overtighten.
8 Inspect the connection to ensure the flare is correctly formed as well as the tubing is securely held in place.
9 Conduct a leakage test by pressurizing the system and checking for virtually any signs of leaks.
10 If no leaks are detected, the assembly is finished and ready to use.

Sizing and Nomenclature of Flare Fittings

Flare fittings play an important role in plumbing projects, and understanding their sizing and nomenclature is essential for choosing the proper fitting to meet your needs. Flare fittings are sized based on the quantities of sixteenths of the inch in the tube outer diameter (O.D.). Let’s break down the sizing and nomenclature to simplify your selection process.


The initial series of numbers and letters inside the part number identify the style and kind from the flare fitting. The second series of numbers represents the dimensions, using sixteenths of an inch. For instance, 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 to identify the specific characteristics and proportions of each fitting. Understanding the codes used in the part number ensures accurate selection and seamless ordering. Here’s a synopsis:

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

By familiarizing yourself with all the sizing and nomenclature of flare fittings, you are able to confidently choose the right fitting for the plumbing project and ensure a good and reliable connection.

Advantages and Applications of Flare Fittings

Flare fittings are widely used in plumbing projects because of their numerous advantages and versatile applications. These fittings offer several advantages which make them an ideal option for professionals in the industry.

Features of Flare Fittings:

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

Uses of Flare Fittings:

“Flare fittings are popular in an array of plumbing applications, thanks 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 selection for projects relating to the transportation or distribution of flammable substances.
  2. Marine Applications: Due to their effectiveness against mechanical pull-out and corrosion resistance, flare fittings are widely used in marine plumbing systems, ensuring reliable connections in harsh saltwater environments.
  3. Refrigeration Applications: Flare fittings play a crucial role in refrigeration systems, providing leak-proof connections for refrigerant lines, ensuring optimal performance and efficiency.
  4. Gas Applications: Flare fittings are also extensively utilized in gas plumbing systems, offering reliable and secure connections for the distribution of gases, like natural gas or propane.
  5. Hydraulic Tubing Applications: Flare fittings are compatible with use with some other materials, including copper, brass, aluminum, and welded steel hydraulic tubing. Their versatility allows them to be utilized 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 crucial.

To summarize, flare fittings offer multiple advantages, including effectiveness against mechanical pull-out, ease of assembly and disassembly, and make use of 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 number of plumbing projects.

Advantages Applications
Potential to deal with 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

Along with the standard configurations, flare fittings offer an array of additional options to meet specific plumbing requirements. These options include:

  1. Bulkheads: Employed 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 satisfy unique project specifications.
  4. UL Stamped Fittings: Ensuring compliance with rigorous quality and safety standards.

When buying flare fittings, it is essential to take into account the pricing of non-stock items and consult the purchase price list supplied by the manufacturer. For special configurations, it is recommended to submit a print or sketch to inquire about pricing and availability. Please be aware that prices and availability are susceptible to change without prior notice, so it is advisable to keep track of the latest 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 for illustrative purposes only and might vary based on the manufacturer and distributor.

Streamline ACR Press System

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

The standout feature from the Streamline ACR Press Method 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 as well as the tubing. With T.R.A.P. Technology, you may have complete confidence within the integrity of your connections.

The DualSeal Ring Design from the ACR Press System further enhances its sealing capabilities. This design guarantees an excellent and reliable seal, minimizing the potential risk of leaks and ensuring long-lasting performance. Additionally, the program includes the TrapZone Leak Barrier, an extra layer of protection which offers an added 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 much more uniform compression, promoting a reliable and tight seal each and every time. Furthermore, the Tri-Lock Press Profile enhances joint strength, making the device highly durable and resistant to any mechanical stress.

Compatibility is key when it comes to plumbing systems, and the Streamline ACR Press System excels in this field. It works with R410A and other frequently used refrigerant gases and oils, which makes it appropriate for an array of applications. Whether you’re focusing on commercial or residential projects, this method was created to meet your specific needs.

Being a evidence of its quality and sturdiness, the Streamline ACR Press System comes with a 10-year limited warranty against defects in material and workmanship. This warranty offers satisfaction and ensures that you’re purchasing a reliable and long-lasting solution for your plumbing needs.

As a Final Point

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

With the Flare x Copper Tube Compression Adapter, it is possible to gain a leak-proof seal and make certain the appropriate flow of liquids and gases. Whether you are working on residential or commercial plumbing projects, this adapter offers the durability and gratification needed to get the job done right.

By including the Flare x Copper Tube Compression Adapter to your plumbing projects, you could have peace of mind understanding that your connections are secure and reliable. Leave behind leaks and inefficient flow, and hello to a plumbing system that performs at its best.