Description
125# Leaded Brass Union
125# Leaded Brass Unions are threaded fittings designed to join two compatible piping sections while allowing the connection to be separated without cutting or rotating the connected pipe. The union configuration is useful where periodic maintenance, equipment removal, or future disassembly may be required.
This product is identified as a 125# leaded brass fitting. Manufacturer dimensional, certification, and material safety documentation is provided below for reference.
Product Highlights
- 125# brass union
- Leaded brass construction
- Threaded connection design
- Joins two compatible piping sections
- Allows piping connection to be separated for service
- Useful where equipment or piping may require future removal
- Compact in-line fitting configuration
- Suitable for compatible plumbing and mechanical applications
- Manufacturer fitting dimensions available
- Manufacturer certification letter available
- Material Safety Data Sheet available
Technical Specifications
| Product Type | Union |
|---|---|
| Pressure Class | 125# |
| Material | Brass |
| Lead Status | Leaded |
| Connection Type | Threaded |
| Flow Configuration | Straight Through |
| Primary Function | Joining Two Piping Sections with a Removable Connection |
| Product Documentation | Dimensions, Certification Letter, and SDS Available |
Union Construction
A threaded union joins two piping sections through a multi-piece fitting that can be disconnected without requiring either pipe section to be rotated.
This makes unions especially useful near valves, equipment, pumps, regulators, and other components that may need to be removed for inspection, repair, or replacement.
The union maintains a straight-through piping connection while providing a convenient service point within the system.
Why Choose a Brass Union?
Serviceable Connection
- Allows piping sections to be separated
- Does not require cutting the connected pipe
- Useful for maintenance and equipment replacement
- Provides a convenient disassembly point
- Suitable for threaded piping systems
Threaded Brass Construction
- Brass fitting body
- Leaded material
- Threaded connection configuration
- Straight-through piping arrangement
- Manufacturer documentation provided below
Union vs. Coupling
Union
- Designed for disassembly after installation
- Allows connected piping sections to be separated
- Useful near serviceable equipment
- Does not require rotating the entire pipe run for disconnection
- This product configuration
Coupling
- Provides a simpler straight threaded connection
- Joins two male-threaded components
- Typically requires pipe rotation during assembly or disassembly
- Common for permanent pipe extensions
- Different serviceability than a union
Common Applications
Plumbing & Mechanical Piping
- Threaded piping systems
- Valve connections
- Pump connections
- Equipment connections
- Serviceable piping assemblies
Industrial & General Service
- Mechanical piping installations
- Maintenance access points
- Compatible process piping
- Utility piping
- Applications requiring future disassembly
Installation & Selection Guidance
- Confirm the required nominal union size before ordering.
- Verify thread compatibility with both mating piping components.
- Confirm the union configuration matches the intended piping layout.
- Orient the union so it remains accessible for future service.
- Use an appropriate thread sealant for the system media, pressure, and temperature.
- Apply thread sealant according to the sealant manufacturer's instructions.
- Use appropriate wrenching surfaces during installation.
- Avoid over-tightening threaded components.
- Support connected piping as required to avoid excessive load on the union.
- Confirm pressure, temperature, and media compatibility before use.
- Verify that leaded brass is permitted for the intended application.
- Installation should comply with applicable piping, plumbing, and project requirements.
Important Material Notice
- This product is identified as leaded brass.
- Confirm that leaded fittings are permitted for the intended application before installation.
- Do not assume this product meets lead-free potable-water requirements.
- Review the manufacturer certification and material safety documentation for additional information.
Product Documents
Import Brass Leaded Fitting Dimensions
Review manufacturer dimensional information for applicable leaded brass unions and connection sizes.
Import Brass Leaded Fitting Certification Letter
Review manufacturer certification documentation for the import leaded brass fitting product line.
Material Safety Data Sheet
Review the supplied material safety documentation for the leaded brass fitting product line.
Need Help Selecting a 125# Leaded Brass Union?
Our industrial PVF specialists can help review your union size, thread requirements, piping layout, serviceability needs, and material requirements before you order.
Frequently Asked Questions
What is a brass union used for?
A brass union is used to join two compatible piping sections while allowing the connection to be separated later for maintenance or equipment removal.
How is a union different from a coupling?
A union is designed to be disconnected without rotating the connected piping. A coupling is a simpler straight connection and generally does not provide the same serviceability.
Can a union be disconnected after installation?
Yes. That is one of the primary advantages of a union. It creates a removable connection point within the piping system.
Where are unions commonly installed?
Unions are commonly used near valves, pumps, regulators, equipment, and other components that may need to be removed or serviced.
What material is this fitting?
The supplied product information identifies this fitting as leaded brass.
What pressure class is this fitting?
The product is identified as a 125# fitting.
Is this fitting lead free?
No. The supplied product information identifies this fitting as leaded.
Where can I find fitting dimensions?
Use the Import Brass Leaded Fitting Dimensions document in the Product Documents section above.
Where can I find certification information?
Use the Import Brass Leaded Fitting Certification Letter in the Product Documents section above.
Is an SDS available?
Yes. A Material Safety Data Sheet is provided in the Product Documents section above.
Important Ordering Notes
- Product is a 125# leaded brass union.
- Threaded in-line fitting configuration.
- Designed to connect two compatible piping sections.
- Allows the connection to be separated for maintenance or equipment removal.
- Leaded brass construction.
- Confirm nominal union size before ordering.
- Verify thread compatibility with both mating piping components.
- Confirm pressure, temperature, and media compatibility before use.
- Verify that leaded material is permitted for the intended application.
- Refer to the manufacturer dimensional, certification, and SDS documents for additional product information.
