Flare fittings are a type of plumbing fitting commonly used to connect pipes or tubing that carry gases or fluids under high pressure. They create a tight and secure connection by compressing a flare nut onto a flared end of the pipe or tubing. Flare fittings are widely used in applications such as gas lines, refrigeration systems, hydraulic systems, and automotive fuel lines.
Here are some key features and advantages of flare fittings:
Secure Connection: Flare fittings provide a secure and leak-resistant connection. The flared end of the pipe or tubing creates a mating surface with the flare fitting, and the flare nut compresses the flare onto the fitting, creating a tight seal.
High Pressure Resistance: Flare fittings are designed to withstand high pressures, making them suitable for applications where gases or fluids are transported under high pressure. The mechanical compression of the flare ensures the connection remains secure, even under significant pressure.
Versatility: Flare fittings can be used with various types of pipes and tubing materials, including copper, aluminum, brass, and steel. This versatility allows for connections between different materials, making flare fittings suitable for a range of applications.
Reusability: Flare fittings can be disassembled and reassembled multiple times, making them convenient for repairs or modifications. However, it's important to ensure that the flare and flare nut are in good condition and properly aligned during reassembly to maintain a secure connection.
Resistance to Vibration: Flare fittings are known for their resistance to vibration. The compression of the flare and the mechanical connection between the flare nut and fitting provide added stability, making flare fittings suitable for applications where vibration may be present.
Compatibility with Flare Tools: Flare fittings require the use of flare tools to create the flared end on the pipe or tubing. These tools ensure a proper flare angle and uniformity, ensuring a reliable connection.
When working with flare fittings, it's important to follow the manufacturer's instructions and guidelines for proper installation. Here are a few key considerations:
- Ensure that the pipe or tubing is cut cleanly and evenly to create a proper flare.
- Use the correct size and type of flare fitting for the specific application and pipe or tubing material.
- Use a flare tool to create a uniform and accurate flare on the pipe or tubing.
- Ensure that the flare is aligned properly with the flare fitting before tightening the flare nut.
- Apply the appropriate amount of torque to the flare nut, following the manufacturer's recommendations, to achieve a tight seal without damaging the flare or fitting.
By following these guidelines and using proper tools and techniques, flare fittings can provide reliable and durable connections for high-pressure gas or fluid applications, ensuring a secure and leak-free system.