What Is a Pipe Fitting?
A pipe fitting is a plumbing component that joins, redirects, extends, reduces, or ends a pipe run. Fittings include elbows, tees, couplings, adapters, unions, and caps. Each fitting matches the pipe material, size, connection method, and water use. A proper fit creates a sealed path that helps prevent leaks and movement.
Quick Facts About Pipe Fitting
Category
Plumbing connection component
Used for
Joining and directing pipe runs
Common confusion
A fitting is not a length of pipe
Also called
Plumbing fitting
Often discussed with
Kitchen Plumbing Repair
Key Takeaways About Pipe Fitting
- Fittings change a pipe’s direction, size, or connection point.
- The fitting must match the pipe and connection method.
- A pipe fitting is not the same as the pipe itself.
How Pipe Fitting Works
Pipe fitting works by connecting pipe sections through a shaped or threaded component. An elbow changes direction, a tee creates a branch, and a reducer connects pipes with different diameters. A coupling joins two pipe ends in a straight line.
Related glossary terms: Compression Fitting, PEX Pipe, Shutoff Valve.
The connection method depends on the pipe material and location. Some fittings use threads, compression, solder, solvent cement, or push connections. A plumber checks that the fitting matches the pipe, seals correctly, and leaves enough room for nearby valves or appliances. PEX pipe often uses crimp, clamp, or push-fit connections. A compression fitting tightens around the pipe to form a seal without solder.
Expert Note
When we inspect pipe fitting work, we check the connection type, pipe alignment, and sealing surface. We also look for strain near valves, faucets, and appliance supply lines. In kitchen plumbing repair, these checks help us find whether a leak comes from the fitting or the connected pipe.
Pipe Fitting in Practice: A Real-World Example
A kitchen sink supply line may need a pipe fitting to connect the wall pipe to the faucet hose. The fitting must match both connection types and leave the shutoff valve accessible.
Related Services
Related Terms
Compression Fitting
A compression fitting is a pipe connection that seals when a nut presses a soft ring…
PEX Pipe
PEX pipe is flexible plastic tubing used to carry hot and cold water through plumbing systems…
Shutoff Valve
A shutoff valve is a plumbing control that stops water flow through a pipe or fixture…
Wye Fitting
A Wye Fitting is a Y-shaped pipe connector that joins a branch line to a main…
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