Merit Brass
Stainless Steel 3000# Forged Union - Grades 304L & 316L
- SKU:
- SS3MU
- Availability:
- Usually Ships Same Day
- Weight:
- 0.00 LBS
Description
Stainless Steel 3000# Forged Union - Grades 304L & 316L
Stainless Steel 3000# Forged Unions are designed to create a strong, serviceable connection between compatible sections of stainless steel piping while allowing the joint to be disconnected without cutting the pipe. Available in 304L and 316L stainless steel, these forged unions are suitable for demanding commercial, industrial, and process piping systems.
Forged stainless steel material conforms to ASME A182, forged fitting dimensions conform to ASME B16.11, and forged stainless unions conform to MSS SP-83. Applicable NPT threads conform to ASME B1.20.1, and the product family is manufactured in an ISO 9001:2008 certified facility.
Product Highlights
- 3000# forged stainless steel union
- Designed for serviceable, disconnectable piping connections
- Available in 304L and 316L stainless steel grades
- Forged stainless steel material conforms to ASME A182
- Forged fitting dimensions conform to ASME B16.11
- NPT threads conform to ASME B1.20.1
- Socket weld fittings conform to ASME B16.11
- Forged stainless unions conform to MSS SP-83
- Forged stainless outlets conform to MSS SP-97
- Forged stainless socket weld inserts conform to MSS SP-79
- Manufactured in an ISO 9001:2008 certified facility
Forged Union Design
A forged union provides a piping connection that can be assembled and later disconnected without cutting the adjoining pipe. This makes unions useful where maintenance, equipment removal, inspection, or future system changes may be required.
The union body allows the piping connection to be separated at the fitting rather than disturbing a longer section of the piping system.
3000# Forged Construction
These unions are manufactured from forged stainless steel conforming to ASME A182. Forged construction provides a durable fitting body intended for demanding piping applications.
Forged fitting dimensions conform to ASME B16.11, while forged stainless steel unions conform to MSS SP-83.
Technical Specifications
| Product Type | Forged Union |
|---|---|
| Pressure Class | 3000# |
| Available Grades | 304L & 316L Stainless Steel |
| Construction | Forged Stainless Steel |
| Primary Function | Serviceable / Disconnectable Pipe Connection |
| Material Standard | ASME A182 |
| Fitting Dimensional Standard | ASME B16.11 |
| Union Standard | MSS SP-83 |
| NPT Thread Standard | ASME B1.20.1 |
| Socket Weld Standard | ASME B16.11 |
| Related Outlet Standard | MSS SP-97 |
| Related Socket Weld Insert Standard | MSS SP-79 |
| Manufacturing Quality | ISO 9001:2008 Certified Facility |
304L vs. 316L Stainless Steel
304L Stainless Steel
- General-purpose stainless steel grade
- Strong corrosion resistance for many industrial applications
- Commonly used in water and process piping
- Low-carbon stainless grade
316L Stainless Steel
- Enhanced corrosion resistance for more demanding environments
- Commonly selected for marine and chloride-exposed applications
- Useful in many chemical and process piping systems
- Low-carbon stainless grade
Threaded & Socket Weld Standards
NPT Threaded Connections
- NPT threads conform to ASME B1.20.1
- Designed for compatible tapered pipe-thread connections
- Confirm thread size before assembly
- Use an appropriate thread-sealing method where required
Socket Weld Connections
- Socket weld fittings conform to ASME B16.11
- Designed for compatible welded piping systems
- Confirm pipe size and socket dimensions before welding
- Use appropriate welding procedures for the material and system
Why Use a Union?
Serviceability
- Allows piping sections to be disconnected
- Useful for equipment maintenance
- Supports inspection and component replacement
- Reduces the need to cut piping for disassembly
Installation Flexibility
- Useful near valves and equipment
- Supports modular piping assemblies
- Allows easier future system modification
- Provides a compact removable connection point
Related Forged Fitting Standards
The broader forged stainless steel fitting family includes components manufactured to additional MSS standards:
- MSS SP-83 - Forged stainless steel unions
- MSS SP-97 - Forged stainless steel outlets
- MSS SP-79 - Forged stainless steel socket weld inserts
These standards apply to related fitting types within the same forged stainless steel product family.
Common Applications
Industrial & Process Piping
- Equipment connections
- Valve connections
- Industrial process piping
- Water treatment systems
- General forged stainless piping
Service & Maintenance Connections
- Removable piping sections
- Pump and equipment connections
- Instrument piping
- Maintenance access points
- Systems requiring future disassembly
Important Ordering Notes
- Product type: Stainless Steel 3000# Forged Union.
- Designed for serviceable, disconnectable piping connections.
- Available in 304L and 316L stainless steel.
- Forged stainless steel material conforms to ASME A182.
- Forged stainless steel fitting dimensions conform to ASME B16.11.
- Forged stainless steel unions conform to MSS SP-83.
- NPT threads conform to ASME B1.20.1.
- Socket weld fittings conform to ASME B16.11.
- Related forged stainless outlets conform to MSS SP-97.
- Related forged stainless socket weld inserts conform to MSS SP-79.
- Manufactured in an ISO 9001:2008 certified facility.
- Confirm nominal pipe size, connection type, pressure requirements, and material grade before ordering.
- Refer to all Product Documents for dimensional and pipe-size information before installation.
Product Documents
Frequently Asked Questions
What is a forged union used for?
A forged union is used to connect two compatible piping sections while allowing the joint to be disconnected later without cutting the pipe.
What pressure class are these unions?
These are 3000# forged stainless steel unions.
What stainless steel grades are available?
These unions are available in 304L and 316L stainless steel.
What standard applies specifically to forged unions?
Forged stainless steel unions conform to MSS SP-83.
What material standard applies?
The forged stainless steel material conforms to ASME A182.
What dimensional standard applies to the forged fittings?
The forged stainless steel fitting dimensions conform to ASME B16.11.
What standard applies to NPT threads?
NPT threads conform to ASME B1.20.1.
What standard applies to socket weld fittings?
Socket weld fittings conform to ASME B16.11.
Why use a union instead of a coupling?
A union is designed to be disconnected without cutting the piping, while a coupling is generally used as a more permanent in-line connection.
Where can I find socket weld fitting dimensions?
Use the Stainless Steel 3M Socket Weld Fitting Dimensions PDF in the Product Documents section above.
Where can I find threaded fitting dimensions?
Use the Stainless Steel 3M Threaded Fitting Dimensions PDF in the Product Documents section above.
How can I confirm pipe outside diameter and wall thickness?
Use the Pipe Chart: Common Diameters & Wall Thicknesses PDF in the Product Documents section above.
Ask Willy: Product Selection & Support
Our GetPipe.com team can help review sizing, material, connection requirements, and product information before you order.
