Midland Industries
Midland Copper Solder Joint Cap
- Availability:
- Usually Ships in 5-7 Business Days
- Weight:
- 0.00 LBS
Description
Midland Copper Solder Joint Cap
Midland Copper Solder Joint Caps provide a simple way to close the end of compatible copper tubing. These copper caps feature a cup-style solder-joint / sweat connection and are available in nominal sizes from 1/8" through 4".
Use these fittings for permanent copper tube terminations, piping modifications, equipment installations, repairs, and other applications requiring the end of a compatible copper tube to be sealed.
Product Highlights
- Midland copper tube end cap
- Cup-style copper connection
- Solder-joint / sweat installation
- Copper construction
- Designed to terminate compatible copper tubing
- Suitable for new installations, repairs, and piping modifications
- 10 priced configurations on this listing
- Nominal sizes from 1/8" through 4"
Available Sizes & Part Numbers
| Part Number | Size | Product |
|---|---|---|
| 77428 | 1/8" | Copper Cap |
| 77429 | 1/4" | Copper Cap |
| 77431 | 1/2" | Copper Cap |
| 77433 | 3/4" | Copper Cap |
| 77434 | 1" | Copper Cap |
| 77435 | 1-1/4" | Copper Cap |
| 77436 | 1-1/2" | Copper Cap |
| 77437 | 2" | Copper Cap |
| 77438 | 2-1/2" | Wrot Copper Cap |
| 77440 | 4" | Tube End Cap |
Technical Specifications
| Manufacturer | Midland |
|---|---|
| Product Type | Copper Solder Joint Cap |
| Material | Copper |
| Connection | Cup |
| Joining Method | Solder Joint / Sweat |
| Configuration | Tube End Cap |
| Function | Terminates Compatible Copper Tubing |
| Listed Size Range | 1/8" through 4" |
What Is a Copper Solder Joint Cap?
A copper solder joint cap is a closed-end fitting used to terminate the end of compatible copper tubing. The open cup end receives the copper tube and is permanently joined using an appropriate soldering / sweat procedure.
- Closes the end of a copper tube run
- Uses a single cup-style connection
- Creates a permanent soldered termination
- Useful for new construction and existing piping modifications
- Available for both small and large copper tube sizes
Common Uses for Copper Caps
Terminate a Tube Run
Close the end of a compatible copper tube where the piping system terminates.
Piping Modifications
Cap an unused section of copper tubing during system modifications or equipment changes.
Repairs & Maintenance
Provide a permanent termination when an existing copper branch or connection is removed.
Common Applications
Plumbing & Mechanical
- Copper water piping
- Heating systems
- Cooling systems
- Mechanical rooms
- Equipment piping
- Copper distribution systems
Commercial & Industrial
- Facility piping
- Maintenance and repair
- Piping modifications
- Equipment changes
- Copper tube terminations
- Compatible process piping
How to Select the Correct Copper Cap
- Step 1: Identify the nominal size of the copper tubing being capped.
- Step 2: Select the matching nominal cap size.
- Step 3: Verify a cup-style solder-joint connection is required.
- Step 4: Match the required size to the correct Midland part number.
- Step 5: Confirm the fitting and joining materials are suitable for the piping application.
Solder Joint Installation
- Verify the copper tube and cap sizes match.
- Cut the copper tubing squarely.
- Remove internal and external burrs as appropriate.
- Clean the outside of the copper tube and inside of the fitting cup.
- Use joining materials appropriate for the application.
- Insert the tubing fully into the cap.
- Use proper soldering and heating procedures.
- Allow the completed joint to cool naturally.
- Inspect and test the completed piping system as appropriate.
Complete Variant Reference
| Part Number | Size |
|---|---|
| 77428 | 1/8" |
| 77429 | 1/4" |
| 77431 | 1/2" |
| 77433 | 3/4" |
| 77434 | 1" |
| 77435 | 1-1/4" |
| 77436 | 1-1/2" |
| 77437 | 2" |
| 77438 | 2-1/2" |
| 77440 | 4" |
Installation Guidance
- Verify nominal tube size before ordering and installation.
- Clean all copper mating surfaces before soldering.
- Use soldering materials suitable for the piping system.
- Ensure the tube is properly seated inside the cap before joining.
- Apply heat using appropriate solder-joint procedures.
- Do not disturb the joint while the solder is cooling.
- Provide appropriate piping support.
- Pressure-test the completed system according to applicable requirements.
Our pipe, fitting, and industrial product specialists can help review your copper tube size, solder-joint requirements, cap selection, piping layout, repair, or application before you order.
Email the GetPipe.com Team Visit Quick SupportFrequently Asked Questions
What is a copper cap used for?
A copper cap closes and terminates the end of compatible copper tubing.
How is this cap installed?
The cup-style connection receives compatible copper tubing and is joined using an appropriate solder-joint / sweat installation procedure.
What sizes are included?
The priced variants in this listing range from 1/8" through 4".
Can I use this to close an unused copper branch?
A properly sized cap can be used to permanently terminate compatible copper tubing when installed according to the requirements of the piping system.
What is the largest available option on this listing?
The largest priced option included here is the 4" tube end cap, Midland part number 77440.
Are 5/8" and 3" included?
No. Those sizes are not included in this listing because pricing was not available for the corresponding variants.
Important Ordering Notes
- This listing contains 10 priced Midland copper cap variants.
- Verify the nominal copper tube size before ordering.
- Part numbers 77432 (5/8") and 77439 (3") are excluded because pricing was unavailable.
- Priced variants are retained regardless of the inventory status shown by the source.
- Confirm solder-joint installation is appropriate for the piping application.
