Compresion fittings physical properties

Standard compression fittings are simple and easy to use fitting as simple as the name sounds. Made up of three basic pieces, a compression fitting uses a threaded nut with a hole that tightens down to the compression fittings body. This tightens down over a small typically brass ring called an Olive that is placed between the nut and the body of the fitting. This olive is compressed by the tightening of the nut to the body creating a sealed joint.

Compression Fittings Applications

Compression Fittings Advantages

Compression fittings are widely favoured for their simplicity, versatility, and reliability. Unlike soldered connections, they require no heat, special tools, or advanced skills, making them quick and easy to install. These fittings are designed to handle higher pressures and are safe for use with toxic gases, making them suitable for a variety of demanding applications.

One of the standout advantages is their ability to be disassembled and reassembled without compromising the joint’s integrity. This makes them ideal for installations that may need occasional maintenance or partial removal. Additionally, they are perfect for environments where using a heat source, such as a soldering torch, is prohibited or impractical.

They are also highly effective in situations where residual water in pipes prevents proper heating for soldering. Their ease of use, durability, and adaptability make them a go-to solution for both residential and industrial plumbing and gas systems.

Key Benefits of Compression Fittings:

• No soldering or special tools required.
• Suitable for high-pressure and toxic gas applications.
• Easy disassembly and reassembly for maintenance.
• Ideal for environments where heat sources are restricted.
• Perfect for pipes with residual water that hinder soldering.

Choose compression fittings for a reliable, efficient, and hassle-free connection solution.

Compression Fittings Disadvantages

While compression fittings offer convenience and ease of installation, they come with certain limitations compared to soldered fittings. One key drawback is that they are not as robust and are best suited for applications where the fitting remains undisturbed and is not subjected to flexing or bending.

Soldered joints, on the other hand, are highly tolerant of dynamic stresses, such as those caused by sudden pressure changes (e.g., water hammer). Compression fittings, however, are more sensitive to these types of stresses, making them less ideal for environments with frequent movement or vibration. Additionally, they are bulkier and may be considered less aesthetically pleasing than the clean, seamless appearance of a soldered joint.

Another limitation is that some compression connectors, like ferrule ring types, cannot be reused once compressed. During installation, the ferrule is compressed between the pipe and the fitting body, deforming the copper tubing in the process. If the connection needs to be redone, the compressed section of the pipe and ferrule must typically be cut off, and a new ferrule must be used on a clean, uncompressed section of the pipe to ensure a leak-proof seal.

Key Disadvantages of Compression Fittings:

• Less robust than soldered fittings.
• Unsuitable for applications with flexing, bending, or dynamic stresses.
• Bulkier and less aesthetically pleasing than soldered joints.
• Some types (e.g., ferrule rings) cannot be reused once compressed.
• Requires cutting and replacing the compressed section for reinstallation.

While compression fittings are practical for many applications, these limitations should be considered when selecting the right fitting for your project.

Compression Fittings Dimensions

Couplings

Reduced couplings

Equal tees

Male tees

Female elbows

Plugs

Flanged adaptors

Equal elbows