Midland Industries
Midland Copper Male Pipe Adapter - C x MPT
- Availability:
- Usually Ships in 5-7 Business Days
- Weight:
- 0.00 LBS
Description
Midland Copper Male Pipe Adapter - C x MPT
Midland Copper Male Pipe Adapters provide a transition from copper tubing to a male threaded connection. These adapters feature a C x MPT configuration with a copper cup-style solder-joint connection on one end and male pipe thread on the other.
Available in equal-size and reducing/increasing configurations, these adapters are useful for connecting copper tube systems to threaded valves, equipment, fittings, manifolds, and other compatible piping components.
Product Highlights
- Midland copper male pipe adapter
- C x MPT connection configuration
- Copper cup / sweat connection
- Male pipe thread connection
- Wrot copper construction
- Solder-joint x threaded transition
- Equal-size and reducing/increasing configurations
- 31 configurations on one listing
- Nominal copper connection sizes through 4"
- Designed for compatible copper tubing systems
Available Configurations
| Part Number | Size | Configuration |
|---|---|---|
| 77393 | 1/8" | C x MPT |
| 77394 | 1/4" | C x MPT |
| 77395 | 1/4" x 1/2" | C x MPT |
| 77397 | 1/4" x 1/8" | C x MPT |
| 77398 | 3/8" | C x MPT |
| 77305 | 3/8" x 1/4" | C x MPT |
| 77308 | 3/8" x 1/2" | C x MPT |
| 77401 | 1/2" | C x MPT |
| 77303 | 1/2" x 3/4" | C x MPT |
| 77304 | 1/2" x 1" | C x MPT |
| 77310 | 1/2" x 1/4" | C x MPT |
| 77311 | 1/2" x 3/8" | C x MPT |
| 77313 | 5/8" x 3/4" | C x MPT |
| 77306 | 3/4" | C x MPT |
| 77307 | 3/4" x 1" | C x MPT |
| 77315 | 3/4" x 1/2" | C x MPT |
| 77309 | 1" | C x MPT |
| 77312 | 1" x 3/4" | C x MPT |
| 77316 | 1" x 1/2" | C x MPT |
| 77317 | 1" x 1-1/4" | C x MPT |
| 77319 | 1" x 1-1/2" | C x MPT |
| 77314 | 1-1/4" | C x MPT |
| 77321 | 1-1/4" x 3/4" | C x MPT |
| 77327 | 1-1/4" x 1" | C x MPT |
| 77328 | 1-1/4" x 1-1/2" | C x MPT |
| 77318 | 1-1/2" | C x MPT |
| 77320 | 1-1/2" x 1-1/4" | C x MPT |
| 77329 | 1-1/2" x 2" | C x MPT |
| 77322 | 2" | C x MPT |
| 77330 | 2" x 1-1/2" | C x MPT |
| 77326 | 4" | C x MPT |
Technical Specifications
| Manufacturer | Midland |
|---|---|
| Product Type | Copper Male Pipe Adapter |
| Material | Copper |
| Material Construction | Wrot Copper |
| Connection Type | C x MPT |
| Copper Connection | Cup / Solder Joint / Sweat |
| Threaded Connection | Male Pipe Thread |
| Configuration | Straight Adapter |
| Available Styles | Equal, Reducing & Increasing Configurations |
| Maximum Listed Copper Size | 4" |
What Is a C x MPT Copper Adapter?
A C x MPT copper adapter transitions a compatible copper tubing system to a male pipe thread connection.
- C: copper cup connection designed to receive compatible copper tubing
- MPT: male pipe thread connection
- Provides a straight copper-to-threaded transition
- Useful for connecting copper piping to threaded valves, equipment, and fittings
Understanding the Size Description
Single-Size Variants
A size such as 1" indicates an equal-size adapter configuration, such as a 1" copper connection transitioning to a corresponding 1" male pipe thread.
Two-Size Variants
A size such as 1" x 3/4" identifies different copper and threaded connection sizes. Verify both dimensions before ordering.
Copper Cup vs. Male Pipe Thread
Copper Cup Connection
The copper cup receives compatible copper tubing and is joined using an appropriate solder-joint / sweat installation method.
Male Pipe Thread
The threaded end connects to a compatible female threaded valve, fitting, equipment port, or other piping component.
Why Use a Male Pipe Adapter?
Copper-to-Thread Transition
Transitions a soldered copper tube system to a threaded piping connection.
Equipment Connections
Provides a convenient male threaded connection for compatible valves, equipment, and accessories.
Multiple Size Options
Equal and unequal configurations provide flexibility when copper and threaded connection sizes differ.
Common Applications
Plumbing & Mechanical
- Copper water piping
- Heating systems
- Cooling systems
- Mechanical rooms
- Valve connections
- Equipment connections
Commercial & Industrial
- Facility piping
- Process piping
- Industrial equipment connections
- Maintenance and repair
- Threaded component transitions
- Copper distribution systems
Solder Joint & Threaded Installation
- Verify both connection sizes before installation.
- Confirm the copper cup and male threaded ends are correctly identified.
- Cut compatible copper tubing squarely.
- Remove internal and external burrs.
- Clean the copper tube and fitting cup thoroughly.
- Use joining materials appropriate for the piping application.
- Protect threaded surfaces from excessive heat and solder contamination.
- Use appropriate thread sealant for the male pipe thread connection.
- Avoid excessive torque when assembling threaded components.
- Support piping to minimize mechanical stress on the adapter.
How to Select the Correct Adapter
- Step 1: Identify the required copper tube connection size.
- Step 2: Identify the required male pipe thread size.
- Step 3: Determine whether an equal, reducing, or increasing configuration is required.
- Step 4: Match both dimensions to the correct Midland part number.
- Step 5: Confirm a C x MPT adapter is appropriate for the installation.
Complete Variant Reference
| Part Number | Size |
|---|---|
| 77393 | 1/8" |
| 77394 | 1/4" |
| 77395 | 1/4" x 1/2" |
| 77397 | 1/4" x 1/8" |
| 77398 | 3/8" |
| 77305 | 3/8" x 1/4" |
| 77308 | 3/8" x 1/2" |
| 77401 | 1/2" |
| 77303 | 1/2" x 3/4" |
| 77304 | 1/2" x 1" |
| 77310 | 1/2" x 1/4" |
| 77311 | 1/2" x 3/8" |
| 77313 | 5/8" x 3/4" |
| 77306 | 3/4" |
| 77307 | 3/4" x 1" |
| 77315 | 3/4" x 1/2" |
| 77309 | 1" |
| 77312 | 1" x 3/4" |
| 77316 | 1" x 1/2" |
| 77317 | 1" x 1-1/4" |
| 77319 | 1" x 1-1/2" |
| 77314 | 1-1/4" |
| 77321 | 1-1/4" x 3/4" |
| 77327 | 1-1/4" x 1" |
| 77328 | 1-1/4" x 1-1/2" |
| 77318 | 1-1/2" |
| 77320 | 1-1/2" x 1-1/4" |
| 77329 | 1-1/2" x 2" |
| 77322 | 2" |
| 77330 | 2" x 1-1/2" |
| 77326 | 4" |
Installation Guidance
- Confirm both the copper tube size and male thread size before installation.
- Dry-fit the piping layout where practical.
- Clean all copper mating surfaces before soldering.
- Protect the male threads from solder, flux, and excessive heating.
- Use soldering materials appropriate for the application.
- Allow the soldered joint to cool before completing the threaded connection where practical.
- Use an appropriate thread sealant on the MPT connection.
- Do not overtighten the threaded connection.
- Provide adequate piping support, particularly on larger sizes.
- Pressure-test the completed piping system according to applicable requirements.

Our pipe, fitting, and industrial product specialists can help review your copper tube size, male pipe thread size, C x MPT connection requirements, solder-joint installation, threaded equipment connection, piping layout, and application before you order.
Email the GetPipe.com Team Visit Quick SupportFrequently Asked Questions
What does C x MPT mean?
C indicates a copper cup-style solder-joint connection, while MPT indicates a male pipe thread connection.
What is a copper male adapter used for?
It transitions a compatible copper tubing system to a male threaded connection for valves, equipment, fittings, and other threaded components.
Are reducing and increasing sizes available?
Yes. In addition to equal-size adapters, this listing contains configurations where the copper and male threaded connection sizes differ.
What does a size such as 1" x 3/4" mean?
It identifies two different connection dimensions. For these C x MPT adapters, verify both the copper connection and male pipe thread size before ordering.
How are these adapters installed?
The copper side uses an appropriate solder-joint / sweat connection, while the threaded side connects to a compatible female pipe thread.
What is the largest size on this listing?
The largest listed variant is the 4" Midland 77326 male adapter.
Important Ordering Notes
- This listing contains 31 Midland copper male pipe adapter configurations.
- Verify both connection dimensions on two-size variants.
- The first dimension represents the copper connection and the second dimension represents the male pipe thread on unequal configurations.
- Confirm C x MPT is the required connection style before ordering.
- Female copper pipe adapters and FTG x MPT adapters are separate product configurations.