Key Features of 37 Degree Flare Fittings: Understanding Their Application, Benefits, and More

Key Features of 37 Degree Flare Fittings: Understanding Their Application, Benefits, and More

37 Degree Flare Fittings are widely used in fluid systems where leak-tight connections are crucial. They consist of a flare or coned end that mates with a matching seat on the fitting. This design ensures a metal-to-metal seal, making them ideal for high-pressure applications.

What are 37 Degree Fittings?

37 Degree Flare Fittings are specialized components used in fluid and gas systems to create secure, leak-resistant connections. They feature a coned or flared end with a precise 37-degree angle, designed to mate with a matching seat in the fitting. This design ensures a tight seal, even under high-pressure conditions, through a metal-to-metal contact that prevents leaks. These fittings are commonly employed in hydraulic and pneumatic systems, as well as in automotive and industrial applications where reliable fluid transfer and operational safety are essential. Their ease of installation, durability, and resistance to corrosion make them a reliable choice for various industrial environments.

Features of 37 Degree Flare Fittings

37 Degree Flare Fittings are integral components in fluid and gas systems, renowned for their robust design and reliable performance. These fittings feature a unique coned end with a precise 37-degree angle, which facilitates a secure, metal-to-metal seal upon connection. This characteristic ensures leak-tight joints, making them ideal for applications requiring high-pressure handling and operational safety.

Key Features of 37 degree flare Fittings

  1. Design: The fittings are engineered with a coned end featuring a 37-degree flare angle, ensuring a tight seal under pressure.
  2. Material Options: Available in materials such as stainless steel, brass, and other corrosion-resistant alloys, suitable for diverse environmental conditions.
  3. Versatility: Suitable for both hydraulic and pneumatic systems, accommodating various fluid and gas applications.
  4. Leak Resistance: Provides reliable sealing capabilities, minimizing fluid or gas leakage and reducing maintenance needs.
  5. Ease of Installation: Simple assembly without specialized tools, enhancing installation efficiency and reducing downtime.
  6. Durability: Resistant to corrosion and wear, ensuring long-term performance in challenging industrial environments.
  7. Application Flexibility: Widely used in automotive, aerospace, and industrial sectors for brake lines, fuel systems, and hydraulic machinery.

These features collectively make 37 Degree Flare Fittings a preferred choice in industries where secure connections and operational reliability are paramount. Whether for high-pressure hydraulic lines or critical pneumatic systems, these fittings deliver consistent performance, contributing to overall system efficiency and safety.

Application of 37 Degree Flare Fittings

These fittings find extensive use in:

  • Hydraulic Systems: Ensuring reliable connections in hydraulic lines, preventing fluid leaks under pressure.
  • Pneumatic Systems: Used for air compression systems where secure connections are essential for operational safety.
  • Automotive Industry: Commonly employed in brake and fuel lines due to their robust sealing capabilities.
  • Industrial Machinery: Applications include fluid transfer lines, control systems, and instrumentation where leak-tight connections are critical.

Benefits of Using 37 Degree Flare Fittings

37 Degree Flare Fittings offer several advantages that make them a preferred choice in fluid and gas handling systems across industries. Here are the key benefits:

  1. Reliable Sealing: The 37-degree angle of the flare end ensures a tight, metal-to-metal seal, minimizing the risk of leaks even under high-pressure conditions.
  2. Versatility: Suitable for a wide range of applications including hydraulic and pneumatic systems, automotive, aerospace, and industrial uses, providing flexibility in system design.
  3. Ease of Installation: Simple assembly process without the need for special tools, reducing installation time and labour costs.
  4. Durability: Constructed from materials like stainless steel, brass, or other corrosion-resistant alloys, ensuring long-term performance and resistance to wear and tear.
  5. Reduced Maintenance: Reliable sealing minimizes the need for maintenance, contributing to lower downtime and increased operational efficiency.
  6. Safety: Secure connections enhance operational safety by preventing fluid or gas leaks that could pose hazards to personnel and equipment.
  7. Compatibility: Compatible with various fluid types and gases, ensuring consistent performance across different operational environments.
  8. Cost-Effectiveness: Longevity and minimal maintenance requirements translate into cost savings over the lifespan of the fittings.

37 Degree Flare Fittings stand out for their robust sealing capabilities, ease of use, and compatibility with diverse applications, making them an optimal choice for industries requiring dependable fluid handling solutions.

Specifications of 37 Degree Flare Fittings

MaterialSizes Available (inches)Pressure Ratings (psi)Temperature Range
Stainless Steel1/8 to 2Up to 6000-65°F to +600°F
Brass1/8 to 1Up to 3000-40°F to +400°F
Carbon Steel1/8 to 2Up to 5000-65°F to +450°F

37 Degree Flare Fittings stand as a robust choice for industries requiring dependable fluid and gas handling solutions. With their leak-resistant design, ease of installation, and durability in diverse operating conditions, these fittings offer reliability and efficiency. By considering their versatile applications and detailed specifications, industries can make informed decisions to enhance operational safety and efficiency. Choosing 37 Degree Flare Fittings ensures not only secure connections but also contributes to overall system reliability and longevity, making them a preferred choice across various industrial sectors.

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Types, Applications, and Using Benefits of Tube Fittings

Tube fittings are an essential component in the piping and tubing systems of many industries. These fittings provide a safe and efficient way to connect, disconnect, and control the flow of fluids or gases in various applications. In this blog, we will discuss the different types of tube fittings, their applications, and the benefits of using them in various industries. Mcneil Instruments Exporting their Tube Fittings Worldwide

Some of the most common types of tube fittings

Types of Tube Fittings There are many types of tube fittings available in the market, each designed to fit a specific application.

  1. Compression Fittings – These fittings are used to connect two pipes or tubes by compressing a ring onto the pipe or tube.
  2. Push-In Fittings – Also known as quick-connect fittings, push-in fittings are used to connect two pipes or tubes by simply pushing them together.
  3. Flare Fittings These fittings are used in high-pressure applications and have a cone-shaped end that seals the tube with a nut.
  4. Barbed Fittings – These fittings have barbs or ridges that grip the inside of the tube and provide a secure connection.
  5. Camlock Fittings – These fittings are used in the transfer of fluids and are designed for quick and easy connection and disconnection.

Applications of Tube Fittings

Tube fittings are widely used in various industries, including:

  1. Oil and Gas Industry – Tube fittings are commonly used in the oil and gas industry for fluid and gas transfer applications.
  2. Chemical Industry – The chemical industry uses tube fittings for handling hazardous and corrosive materials.
  3. Pharmaceutical Industry – The pharmaceutical industry uses tube fittings in the manufacture of drugs and medical devices.
  4. Food and Beverage Industry – Tube fittings are used in the food and beverage industry for the hygienic transfer of fluids and gases.

Benefits of Using Tube Fittings

Using tube fittings in your piping and tubing system can offer several benefits, including:

  1. Easy installation: Tube fittings are designed for easy installation, with minimal tools and expertise required. This makes them a popular choice for many industries and applications.
  2. Leak-free connections: Tube fittings create a secure and tight seal, which prevents leaks and ensures the efficient flow of fluids or gases.
  3. Versatility: Tube fittings are available in a wide range of sizes, materials, and configurations, making them suitable for a broad range of applications.
  4. Durability: Tube fittings are typically made from high-quality materials, such as stainless steel, brass, or aluminum, which makes them durable and long-lasting.
  5. Corrosion resistance: Many tube fittings are designed to resist corrosion, making them ideal for use in harsh environments where corrosive substances are present.
  6. Flexibility: Tube fittings can be easily disconnected and reconnected, allowing for easy maintenance and repair.

Overall, tube fittings are a reliable, cost-effective, and efficient solution for many industries and applications.


In conclusion, Mcneil Instruments Inc. is Tube Fittings Manufacturer, supplier, and Exporter in India. Tube fittings are an essential component of any piping and tubing system, providing a safe and efficient way to connect, disconnect, and control the flow of fluids or gases in various applications. With their easy installation, secure connection, durability, and versatility, tube fittings are a reliable choice for many industries.

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Difference between Flare Male Connector and Flare Union Tee

Have you ever been frustrated trying to figure out the difference between flare male connectors and flare union tees? You’re certainly not alone. There are plenty of folks out there who think these two common plumbing components are the same thing.

The reality is that understanding the difference between a flare male connector and a flare union tee is actually quite simple – once you know what makes them different.

What Is a Flare Male Connector?

If you’ve ever looked into plumbing or pipe fittings, you may have encountered the term ‘flare male connector‘. But what exactly is it? Well, a flare male connector is a type of fitting used in plumbing and air conditioning systems to connect two pipes or pieces of equipment. It’s so named because it uses a ‘flared’ end to create a tight seal, much like how a screwdriver can be used to secure two pieces of wood together.

So what sets it apart from other types of fittings? One major difference is that the flare male connector does not have threads on the outside of the tube. This means that when it’s installed, there’s no need to worry about any type of sealant or solvent being needed.

What Is a Flare Union Tee?

A flare union tee is a type of plumbing fitting that combines two pipes and one fitting together — usually to connect two pieces of pipe at a 45-degree angle. It is made up of three parts: a female flare port, a male flare port, and a threaded nipple.

The key difference between a Flare Union Tee and a Flare Male Connector is the design. The Flare Male Connector has only two components—the male flare port and the female flare port—while the Flare Union Tee adds an additional piece, the threaded nipple.

Differences between a Flare Male Connector and a Flare Union Tee

Now that you know the basics of a flare male connector and a flare union tee, it’s time to take a deeper look at their differences. There are a few key distinctions that set these two related fittings apart.

Physical Characteristics

The first difference is the physical characteristics. A flare male connector is made with a single outlet opening, while a flare union tee has two, one in each end. The other end is threaded or socket-welded so it can be attached to another fitting. The third opening on the tee is typically threaded and is used to connect two pieces of tubing together.


The second distinction between the two is how they are used. A flare male connector should be used when connecting two separate lengths of tube or pipe together, while a flare union tee should be used when connecting multiple lengths of tubes together at one point.

Durability and Safety Standards

Finally, each type must meet different safety standards for durability and pressure rating before being approved for use in industrial settings. Flare male connectors typically have an allowable working pressure rating of up to 500 PSI and are available in materials such as brass, stainless steel or carbon steel. Flare union tees may typically have an allowable working pressure up to 2,000 PSI depending on the material being used and must meet specific requirements before they can be approved for use in industrial applications.

Industrial Usage of the Two Types of Fittings

When it comes to industrial usage, the flare male connector and flare union tee have different roles. The flare male connector is typically used to connect pipes, hoses, and tubing in gas and liquid applications, while the flare union tee is used to connect multiple fittings between two pipes.

Flare male connectors are commonly found in a variety of industrial applications, from large power plants to smaller heating and cooling systems. They are also often used in plumbing systems, tankless hot water heaters and other similar types of installations.

On the other hand, flare union tees are most frequently used in larger industrial applications like oil refineries, natural gas pipelines and chemical processing plants. They are also commonly found in more complex industrial systems such as larger heating/cooling systems and HVAC systems that utilize multiple connections between pipes and fittings to form intricate networks of piping. Here are some key points to remember when using flare union tees:

• The connection must be properly aligned before tightening any nuts or bolts

• The nuts should be evenly tightened until the connection is sealed

• It’s recommended that PTFE (Teflon) tape or similar sealant be added to ensure a leak-proof connection

• Always use safety equipment like gloves and goggles when working with any type of fitting

Quality Standards Adhered to by Flare Fittings Manufacturers and Suppliers in India

Choosing the right flare fittings in India is essential to make sure that your project meets the highest quality standards. Fortunately, the manufacturers and suppliers of flare fittings adhere to some of the highest quality standards in the world.

Indian Standards for Flare Fittings

The Indian Standards for Flare Fittings (IS 3142-1983) sets out the requirements for flare fitting materials and dimensions. This standard requires that all flare fittings be made from materials that are strong and have excellent resistance to corrosion. The standard also stipulates that all parts meet a high level of quality assurance, including undergoing tests such as leak test, bend test, cold pressure test, and carbon content test.

Quality Certifications

Flare fitting manufacturers and suppliers in India are also certified by reputed organizations like the ISO 9001:2015 and CE certifications. This is done to ensure that their products meet international quality standards and provide superior performance even in difficult applications. Quality certifications also help customers make informed decisions when choosing their suppliers.

Furthermore, many flare fitting manufacturers offer customized solutions and design support to help customers achieve their desired results with ease and accuracy. This ensures that their products are tailored according to individual needs and requirements.

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Pipe fittings Collar - Mcneil instruments

Best collar pipe fittings manufacturer, supplier, and exporter

ANSI/ASME N16.9 buttweld Collar Fittings is another name for Collar Pipe Fittings. The given valves have several desirable characteristics, such as high corrosive resilience, solid and lasting construction, leak-proof connections, ease of installation, and great surface polish.

Plumbing encompasses all of the procedures required to distribute liquid substances or vapors in a given construction, including washing, hydraulic, taps, cumulonimbus, gas cooking, wastes water drainage, acetylene supply, different pipelines, sanitary conveniences, and so on. These fluids are transported by a pipe system. To disseminate them from a beginning point to one or more arrival sites, pipes, tubes, pumps, and valves are employed.

Steps to fix a plumbing collar

Pipes can be manufactured of a variety of materials, including stainless steel, copper, brass, PER, and glass. To assure the stiffness of these various pipelines, connectors, including clamps, must be installed. Mcneil instruments is best collar pipe fittings manufacturer, supplier in India, and help your to make your work easier and efficient.

  • Foremost popular pipe clamp is constructed of stainless steel and is composed of three parts: the cradle, the clamp, and the screw tabs. To connect it, you’ll need a wrench and a chalk to make a mark on the wall.
  • Before beginning the assembly, split the collar in halves by unplugging the two bolt tabs on either side. Once the selected clip has split, utilize the halves  that is supplied with the perch. The bassinet marks the foundation of one of the necklace’s sections.
  • To preserve its stability, this portion is first secured towards the board with a tail and then finished with a steel plate. The pipe is then threaded through the collar’s initial half and fastened by the second quarter. The two pin hooks situated on either side assure tightness.
  • Cylindrical roses are employed when there has to be a space between the pipe and the wall. They are installed between the wall mount and the headband, more specifically at the bassinet level. The separator roses not only make the assembly more visually appealing, but they also minimize rust and corrosion and leakage.

Other types of collar clamps are also available from for securing PVC pipes. They are constructed of plastic and do not shut entirely. The hoses to be secured are put into the clamp’s two arms by simply pushing them in.

Mcneil Instruments is one of the top and best collar pipe fittings manufacturer, supplier, exporter in India. These collar pipe fittings are manufactured in a wide range of forms, sizes, and standards. Instrumentation pipe fittings are in great supply on the global market. To meet these needs and produce quality goods, access to the critical raw materials supplied by the market’s best Collar manufacturers, supplier, exporter.

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Flared Fittings - Mcneil Instruments Inc.



Flare fittings are a type of compression fittings used with metal tubing, where the end of the tube is flared, i.e., expanded and deformed and a nut is used to connect the end with the fitting, creating pressure while securing it and making it leak resistant. Flare fittings are usually used with soft metals such as soft steel, aluminium and soft copper. Because of their long-term reliability, flared fittings are used across industries for critical connections and as a solution to reach non accessible areas. McNeil Instruments offers a variety of flared fittings that can be used for varied purposes.


  • Construction and Ship building industries

Flared connector fittings are widely used in ship building and construction industries for different functions such as welding, piping, fabrication and other such applications. McNeil Instruments is a large manufacturer and supplier of Male and Female Connectors and supplies high quality connectors with advanced properties and characteristics

  • Airconditioning and electrical industries

Adjustable Branch Tee fittings are used commonly in electrical and air conditioning industries. The Swivel Adjustable Branch Tee fittings manufactured by McNeil Instruments are made of fine ore and are extensively used to perform various connecting functions across various processes in electrical industries.

  • Chemical and Fertilizer industries

Union Elbow flared fittings are highly used in chemical and fertilizer industries as they offer metal-to-metal seal and a high mechanical pull power. The Flare Union Elbow fittings manufactured by McNeil Industries are put through various mechanical and flaring tests and also undergo chemical analysis, thus ensuring highly efficient quality.

  • Aerospace and military applications

Flared fittings are often used in thin to medium wall tubing and are best to be used in military equipment and heavy machinery. Different kinds of flared fittings are used in the aerospace and military applications within piping or tubing as a means to connect pieces as well as seal and regulate flow. McNeil Instruments are one of the largest manufacturers and suppliers of Flared fittings and offer a wide range of flared fittings that can be used in heavy machinery and equipment.

  • Hydraulic system applications

Flared fittings are widely used in high pressure hydraulic system applications in oil and gas industry, agriculture, construction and equipment manufacturing industry. McNeil Instruments manufactures best quality Flared fittings that undergo various tests and checks and also offers customized size and specifications.

With their wide application across various industries, flared fittings are one of the most important tools used in piping and tubing. Their application ensures optimum sealing and leak-free process. This makes it important to use high quality, pre-tested fittings. McNeil Instruments is one of the largest manufacturers, suppliers and exporters in India, offering a wide range of fittings that undergo various tests such as pressure test, mechanical test, chemical analysis and many more and are available in various configurations.

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