Compression Fitting

Definition

A compression fitting is a type of fitting, such as bends, couplings, crosses, elbows, tees, and unions, that uses force to push together and squeeze a metal or rubber gasket to create a seal.

Purpose

The purpose of a compression fitting is to join pipes or tubing securely without the need for soldering, welding, or threading. It provides a reliable and leak-proof connection in plumbing and gas systems.

Examples of Use

• Compression fittings are commonly used in household plumbing to connect water supply lines to faucets and fixtures.
• They are used in gas piping systems to ensure a secure and leak-free connection.
• In HVAC systems, compression fittings connect copper tubing in refrigerant lines.

Related Terms

• Flare Fitting: A type of fitting that uses a flared end of the tubing to create a seal.
• Threaded Fitting: A fitting that connects pipes through threaded ends.
• Push-Fit Fitting: A fitting that connects pipes by simply pushing them together.

Notes

Compression fittings must be properly tightened to avoid leaks but should not be over-tightened, as this can damage the fitting or the pipe. Regular inspection and maintenance are recommended to ensure continued performance.