Cello
Domestic Wrot Copper x Copper Ring Coupling
- Availability:
- Usually in Stock – Ships Quickly
- Weight:
- 0.00 LBS
Description
Domestic Wrot Copper x Copper Ring Coupling
Domestic wrot copper x copper ring couplings join two equal-size sections of copper tube in a straight soldered connection. An internal formed ring provides a positive tube stop to help position each tube near the center of the fitting during installation.
Select the required nominal copper tube size from the product options above. The selected variation determines the Cello item number, online selling price, weight, cost, and other size-specific product information.
Product Highlights
- Domestic wrot copper construction
- Copper sweat x copper sweat connections
- Internal ring-style tube stop
- Joins two equal-size copper tube sections
- Helps position both tubes near the fitting center
- Designed for soldered copper piping systems
- Suitable for new construction, plumbing, mechanical, maintenance, and repair work
- Available in nominal sizes from 1/8" through 4"
Technical Specifications
| Material | Wrot Copper |
|---|---|
| Product Type | Domestic Copper Pressure Fitting |
| Connection | Copper Sweat x Copper Sweat |
| Connection Sizes | Two Equal-Size Connections |
| Internal Stop | Ring-Style Tube Stop |
| Installation Method | Solder Joint |
| Fitting Type | Straight Ring-Stop Copper Coupling |
| Applicable Standard | ASME B16.22 |
| Manufacturer | Cello Products |
| Available Sizes | 1/8", 1/4", 3/8", 1/2", 5/8", 3/4", 1", 1-1/4", 1-1/2", 2", 2-1/2", 3", and 4" |
How a Ring Coupling Works
The internal formed ring acts as a positive stop for both copper tubes. Each tube is inserted from an opposite end until it reaches the stop, helping position the tube ends near the middle of the coupling before the two sweat joints are soldered.
Ring Coupling vs. No-Stop Coupling
Ring Coupling
- Includes an internal formed ring
- Provides a positive tube stop
- Helps center both tube ends
- Commonly used for new installations
No-Stop Coupling
- No internal center stop
- Can slide completely over the tube
- Useful for in-line pipe repairs
- Must be manually centered before soldering
Common Applications
Plumbing and Mechanical Systems
- Potable-water piping
- Residential plumbing systems
- Commercial plumbing installations
- Mechanical-room piping
- Heating and cooling systems
- General copper distribution piping
Installation and Maintenance
- Joining equal-size copper tube
- Extending copper piping runs
- New construction installations
- Equipment connections
- Renovation and retrofit work
- General maintenance applications
Product Resources
Review the Cello product catalog and NSF Annex G listing before ordering or installation.
Need Help Selecting a Ring Copper Coupling?
Our industrial PVF specialists can help confirm the required copper tube size, stop style, connection type, application requirements, material compatibility, and product availability.
Frequently Asked Questions
What is a ring copper coupling?
A ring coupling is a straight copper coupling with an internal formed ring that acts as a positive stop for the two copper tubes.
What does the internal ring do?
The ring helps position each tube near the center of the fitting so the tubes are inserted to a consistent depth before soldering.
Are both connections the same size?
Yes. This product has two equal-size female copper sweat sockets.
How is a ring coupling different from a no-stop coupling?
A ring coupling has an internal tube stop. A no-stop coupling has an open bore and can slide completely over the copper tube.
How is the coupling installed?
Each tube and fitting socket is cleaned and prepared with approved flux. The tubes are inserted to the internal stop, and both joints are soldered according to accepted procedures and applicable codes.
Is this a domestic copper fitting?
Yes. This product is listed as a domestic wrot copper pressure fitting.
Who manufactures this coupling?
This product is manufactured by Cello Products.
Can it be used for potable-water systems?
It may be used in compatible potable-water systems when installed according to applicable codes, standards, manufacturer requirements, and approved joining procedures.
Is this a reducing coupling?
No. This product connects two equal-size copper tubes. Copper reducing couplings are listed separately.
Important Ordering Notes
- Select the required nominal copper tube size before adding the product to your cart.
- The selected variation determines the Cello item number, price, weight, and cost.
- This coupling includes an internal ring-style tube stop.
- Both copper sweat connections are the same size.
- No-stop and reducing copper couplings are listed separately.
- Confirm the nominal copper tube size before ordering.
- Insert both copper tubes fully to the internal stop before soldering.
- Use approved solder, flux, preparation methods, and installation procedures.
- Remove moisture, oxidation, dirt, oil, and debris before soldering.
- Confirm pressure, temperature, media compatibility, and applicable code requirements before installation.
- Installation should be completed by qualified personnel.