A coupler is a plumbing fitting that connects two sections of pipe or tubing to extend or repair a line. Couplers come in materials like copper, brass, PVC, or rubber and in styles such as slip, threaded, and compression to match different pipe types and installation needs.
/ˈkaʊplər/
A coupler is a plumbing fitting that connects two sections of pipe or tubing to extend or repair a line. Couplers come in materials like copper, brass, PVC, or rubber and in styles such as slip, threaded, and compression to match different pipe types and installation needs.
What does a coupler do in plumbing?
It joins two sections of pipe or tubing so water can flow through a secure, leak‑resistant connection.
Source: The Cooling Company
Couplers join pipes securely to prevent leaks.
During a water heater upgrade, a plumber uses couplers to connect new copper lines to existing piping without replacing the entire run.
Match coupler material to the pipe and use transition fittings when connecting dissimilar materials.
“Match coupler material to the pipe and use transition fittings when connecting dissimilar materials.”
Quick‑connect couplers allow tool‑free repairs in tight spaces and speed up installations.
Can I connect different pipe materials with a coupler?
Yes, but use a transition coupler designed for those materials to avoid leaks and corrosion.
What is the difference between slip and threaded couplers?
Slip couplers are soldered or glued, while threaded couplers screw onto threaded pipe ends.
Do couplers need maintenance?
They’re low‑maintenance, but periodic inspections help catch leaks early.
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