Charman Inc.
Copper Coupling with Rolled Stop - C x C
- Availability:
- Usually in Stock – Ships Quickly
- Weight:
- 0.00 LBS
Description
Copper Coupling with Rolled Stop - C x C
Charman Inc. Copper Couplings with Rolled Stops provide a straight connection between two compatible copper tube sections of the same nominal size. The C x C configuration uses cup-style connections on both ends, while the internal rolled stop helps position the tubing and control insertion depth during assembly.
This coupling is designed for solder / sweat joining and is well suited for extending straight copper piping runs, joining tube sections, and making permanent inline connections where an internal tube stop is preferred.
Product Highlights
- Copper straight coupling
- Rolled internal stop
- C x C cup-style connections
- Copper construction
- Solder / sweat installation
- Connects equal-size copper tube
- Internal stop helps position tubing during assembly
- Designed for straight inline copper tube connections
Sizes & Part Numbers
| Part Number | Size | UPC |
|---|---|---|
| 330321 | 1/4" | 847877024803 |
| 330323 | 1/2" | 847877014293 |
| 330324 | 3/4" | 847877014590 |
| 330325 | 1" | 847877024810 |
| 330326 | 1-1/4" | 847877024827 |
| 330327 | 1-1/2" | 847877016112 |
| 330328 | 2" | 847877024834 |
Technical Specifications
| Brand | Charman Inc. |
|---|---|
| Product Type | Copper Coupling with Rolled Stop |
| Material | Copper |
| Connection Type | C x C |
| Connection Style | Cup / Sweat |
| Joining Method | Solder Joint |
| Configuration | Straight Equal-Size Coupling |
| Stop Style | Rolled Stop |
What Is a Rolled Stop Copper Coupling?
A rolled stop copper coupling joins two compatible copper tube sections in a straight line. An internal stop near the center of the coupling provides a physical reference point for positioning the tube ends during assembly.
- Connects two equal-size copper tube sections
- Provides a straight inline connection
- Rolled stop helps control tube insertion depth
- Cup connections receive compatible copper tubing
- Designed for solder / sweat joining
Understanding the Rolled Stop
Tube Positioning
The internal stop provides a reference point for seating each copper tube section inside the coupling during assembly.
Insertion Control
The stop limits how far each tube can travel through the fitting, helping position the tube ends within the coupling before soldering.
Rolled Stop vs. No-Stop Coupling
Rolled Stop Coupling
Includes an internal stop that limits tube insertion and helps position the two tube sections within the fitting. This configuration is well suited for standard inline connections.
No-Stop / Repair Coupling
A no-stop coupling can slide farther over the copper tube instead of stopping near the center. This can be useful when repairing an existing piping run where the coupling must slide completely onto one tube before being repositioned across the joint.
Why Use a Rolled Stop Coupling?
Straight Connection
Joins compatible copper tube sections without changing the direction of the piping run.
Tube Positioning
The rolled stop provides a physical reference point that helps position the tube ends during assembly.
Simple Installation
Cup connections on both ends receive compatible copper tubing for conventional solder / sweat joining.
Common Applications
Plumbing & Mechanical
- Copper water piping
- Mechanical piping systems
- Equipment connections
- Repair and maintenance
- Copper tube extensions
- Piping modifications
Straight Tube Connections
- Joining two copper tube sections
- Extending copper piping runs
- Fabricated copper assemblies
- Mechanical room piping
- Utility piping
- New copper piping installations
How to Select the Correct Coupling
- Identify the nominal size of the copper tubing.
- Confirm that an equal-size straight connection is required.
- Verify that C x C cup-style connections are appropriate for the installation.
- Determine whether a rolled internal stop is preferred for positioning the tubing.
- Use a no-stop / repair coupling instead when the installation requires the coupling to slide completely over the tube.
Installation Guidance
- Verify the nominal copper tube size before installation.
- Cut compatible copper tubing squarely.
- Remove internal and external burrs as appropriate.
- Clean the tubing and fitting cups before soldering.
- Apply appropriate flux according to the joining procedure.
- Insert each tube until it reaches the internal rolled stop.
- Confirm both tube sections are properly positioned before soldering.
- Use proper soldering and heating procedures for copper joints.
- Allow completed joints to cool before disturbing the assembly.
- Test the completed piping system for leakage before placing it into service.

Our pipe and fitting specialists can help review your copper tube size, rolled-stop coupling requirements, solder-joint connection, piping layout, and application before you order.
Email the GetPipe.com Team Visit Quick SupportFrequently Asked Questions
What is a rolled stop coupling?
A rolled stop coupling has an internal stop that provides a reference point for positioning copper tubing and limits how far each tube can travel through the fitting.
What does C x C mean?
C x C indicates cup-style connections on both ends designed to receive compatible copper tubing for solder / sweat joining.
What is the purpose of the internal stop?
The stop helps position the two copper tube sections inside the coupling and prevents either tube from passing completely through the fitting during normal assembly.
When would I use a no-stop coupling instead?
A no-stop coupling is useful when the fitting must slide completely over a tube during installation, such as certain repair or retrofit situations where the piping cannot be moved apart.
Does this coupling change the direction of the piping?
No. It is a straight coupling designed to join two compatible copper tube sections in line with one another.
How is the coupling installed?
Compatible copper tubing is inserted into each cup until it reaches the internal stop and is then joined using appropriate solder / sweat procedures.
Important Ordering Notes
- Verify the nominal copper tube size before ordering.
- Confirm that an equal-size straight coupling is required.
- Verify that C x C solder / sweat connections are appropriate for the installation.
- Confirm that a rolled-stop coupling is appropriate rather than a no-stop / repair coupling.