Midland Industries
Midland 1/8" XH Red Brass Union
- SKU:
- 82104-02
- Availability:
- Allow 2-3 Days to Ship
- Weight:
- 0.35 LBS
Description
Midland 1/8" XH Red Brass Union
Midland 1/8" XH Red Brass Unions are extra heavy threaded fittings designed to provide a convenient, removable connection between two sections of pipe without disturbing the surrounding piping system.
Manufactured from premium red brass, this union provides excellent corrosion resistance, durability, and dependable long-term performance. The three-piece design and female NPT threaded connections allow piping or equipment to be disconnected for maintenance, repair, inspection, or replacement without rotating adjacent pipe.
Product Highlights
- 1/8" nominal pipe size
- Extra Heavy (XH) red brass construction
- Female NPT x Female NPT threaded connections
- Three-piece union design
- Allows piping to be disconnected without rotating adjacent pipe
- Excellent corrosion and dezincification resistance
- Precision-machined threaded connections
- Heavy-duty construction for demanding service
- Suitable for plumbing, HVAC, industrial, and fluid handling systems
- Manufactured by Midland Industries
Technical Specifications
| Product Type | Extra Heavy Threaded Union |
|---|---|
| Brand | Midland |
| Nominal Pipe Size | 1/8" |
| Material | Red Brass |
| Connection Type | Female NPT x Female NPT |
| Thread Type | NPT |
| Body Style | Extra Heavy (XH) |
| Union Design | Three-Piece |
| Primary Function | Providing a Removable Connection Between Threaded Piping Components |
| Typical Applications | Plumbing, HVAC, Industrial, Mechanical, and General Fluid Handling Systems |
Union Configuration
1/8" Female NPT Connection
One end features a precision-machined 1/8" female NPT connection for installation with a compatible male-threaded pipe, nipple, fitting, valve, or equipment connection.
Union Nut & Center Joint
The center union nut allows the fitting to be separated for maintenance or equipment replacement without rotating the connected piping.
1/8" Female NPT Connection
The opposite end also features a 1/8" female NPT connection for connection to another compatible male-threaded component.
Construction Details
Midland 1/8" XH Red Brass Unions are manufactured from premium red brass with an Extra Heavy body for dependable strength, durability, and corrosion resistance in demanding service conditions.
The three-piece construction allows sections of piping to be disconnected without disturbing adjacent threaded components.
Precision-machined union components and female NPT threads provide secure alignment and dependable threaded engagement when installed using accepted piping practices.
Why Choose an Extra Heavy Union?
Extra Heavy Construction
- More substantial fitting body
- Durable red brass construction
- Excellent corrosion resistance
- Designed for demanding applications
- Supports dependable long-term service
Maintenance-Friendly Design
- Allows easy piping disassembly
- No need to rotate adjacent pipe
- Useful around valves and equipment
- Simplifies maintenance and replacement
- Provides a convenient system break point
NPT Threaded Connections
1/8" Female NPT x Female NPT
Both ends use 1/8" female NPT threads for connection to compatible male NPT pipe, nipples, fittings, valves, or equipment ports.
Thread Sealing
Use an appropriate thread sealant or PTFE tape on mating male NPT threads where required for the application.
Typical Applications
Plumbing & HVAC
- Threaded plumbing systems
- HVAC piping
- Mechanical systems
- Valve connections
- Equipment service points
Industrial & Fluid Handling
- Industrial piping
- Utility systems
- Equipment connections
- Maintenance and repair
- Compatible fluid handling applications
Connection Selection
This listing is specifically for a 1/8" Midland Extra Heavy Red Brass Union.
Confirm that both mating components use compatible 1/8" male NPT threads before ordering and verify the pressure, temperature, media, and application requirements of the system.

Our pipe and fitting specialists can help review your 1/8" NPT connection requirements, piping layout, system media, pressure, temperature, and material compatibility before you order.
Email the GetPipe.com Team Visit Quick SupportFrequently Asked Questions
What size is this union?
This listing is specifically for a 1/8" Midland Extra Heavy Red Brass Union.
What does XH mean?
XH stands for Extra Heavy and refers to the more substantial construction of the fitting body.
What material is the fitting made from?
The union is manufactured from red brass.
What type of connections does it use?
It features 1/8" female NPT threaded connections on both ends.
What is the purpose of a union fitting?
A union provides a removable threaded connection that allows piping or equipment to be disconnected without rotating adjacent piping.
How is a union different from a coupling?
A union includes a separable center joint, while a standard coupling does not. This makes a union easier to disconnect for maintenance or component replacement.
Why use red brass?
Red brass provides dependable strength along with excellent corrosion and dezincification resistance in compatible piping systems.
Should thread sealant be used?
Use an appropriate thread sealant or PTFE tape on mating male NPT threads where required by the application.
Do I need to rotate the piping to disconnect the union?
No. The three-piece union design allows the center connection to be separated without rotating the connected piping.
What should I verify before ordering?
Confirm the 1/8" connection size, mating male NPT threads, pressure, temperature, media compatibility, and installation requirements.
Important Ordering & Installation Notes
- This listing is for a Midland 1/8" XH Red Brass Union.
- Both ends use 1/8" female NPT threaded connections.
- Verify both mating components use compatible 1/8" male NPT threads.
- Use an appropriate thread sealant or PTFE tape on mating threaded connections where required.
- Keep the union sealing surfaces clean during installation.
- Make sure the union halves are properly aligned before tightening the union nut.
- Do not use the union nut to pull severely misaligned piping together.
- Verify red brass is suitable for the intended media and operating environment.
- Confirm pressure and temperature requirements before installation.
- Avoid excessive tightening that could damage the union or mating threads.
- Support connected piping to prevent excessive mechanical loading.
- Inspect threads and union sealing surfaces before assembly.
- Check the completed connection for leakage before placing the system into service.
- Install according to accepted piping practices and applicable plumbing or piping codes.
- Follow Midland manufacturer recommendations for complete installation and operating requirements.