What Is a Dresser Coupling Used for in Water Plumbing?
A Dresser coupling is a mechanical compression coupling used to connect or repair plain-end water pipes (pipes without threads). It is most commonly used on:
How It Works
A Dresser coupling typically has:
You cut out a leaking section of 1" galvanized water pipe. Instead of threading new pipe, you use a 1" Dresser coupling to join the two cut ends and seal it mechanically.
Important Notes
A Dresser coupling is used to repair or connect water pipes without threads, using compression and rubber gaskets to create a watertight seal.
If you tell me the pipe size and material, I can explain whether a Dresser coupling is the right repair choice.
A Dresser coupling is a mechanical compression coupling used to connect or repair plain-end water pipes (pipes without threads). It is most commonly used on:
- Galvanized steel
- Black steel
- Cast iron
- Ductile iron
- Older water service lines
- Repairing a cracked or leaking water pipe
- Connecting two plain-end pipes together
- Joining pipes of slightly different outside diameters
- Making emergency or underground water line repairs
How It Works
A Dresser coupling typically has:
- A center sleeve (metal body)
- Rubber gaskets on each side
- Follower rings
- Bolts and nuts
- Slide coupling onto pipe ends
- Position both pipe ends inside the sleeve
- Tighten bolts
- Rubber gaskets compress and seal against pipe
- No threading. No welding. No soldering. It seals by compression, not by threads.
You cut out a leaking section of 1" galvanized water pipe. Instead of threading new pipe, you use a 1" Dresser coupling to join the two cut ends and seal it mechanically.
Important Notes
- Designed primarily for water lines, not gas
- Must match the pipe’s outside diameter, not just nominal size
- Bolts must be evenly tightened for proper seal
A Dresser coupling is used to repair or connect water pipes without threads, using compression and rubber gaskets to create a watertight seal.
If you tell me the pipe size and material, I can explain whether a Dresser coupling is the right repair choice.