Merit Brass
150# Stainless Steel Coupling Socket Weld MSS SP114
- SKU:
- SWM411-SWM611
- Availability:
- Usually Ships Same Day
- Weight:
- 0.00 LBS
Description
150# Stainless Steel Coupling Socket Weld MSS SP114
150# Stainless Steel Socket Weld Couplings MSS SP114 are heavy-pattern fittings designed to join two sections of compatible pipe in a straight run using socket weld connections. The coupling configuration provides a compact, permanent welded connection for commercial, industrial, water, and process piping systems where corrosion resistance and dependable service are required.
Available in 304 and 316 stainless steel, these fittings are manufactured as MSS SP-114 pattern fittings and are listed as low lead certified to NSF 61. Stainless steel construction helps resist corrosion, rust, scale, and contamination while maintaining strength at elevated temperatures.
Product Highlights
- 150# stainless steel socket weld coupling
- Designed to join two pipe sections in a straight run
- Socket weld connection on both ends
- Available in 304 and 316 stainless steel grades
- MSS SP-114 pattern fitting
- Low lead certified to NSF 61
- Corrosion-resistant stainless steel construction
- Compact permanent welded connection
- Helps prevent contamination from rust, scale, and small particles
- Resists corrosive attack from a wide range of industrial and chemical solutions and mixtures
- Maintains strength at elevated temperatures
- Designed for long service life in compatible applications
Technical Specifications
| Product Type | Socket Weld Coupling |
|---|---|
| Pressure Class | 150# |
| Material | Stainless Steel |
| Available Grades | 304 & 316 Stainless Steel |
| Pattern | MSS SP-114 |
| Connection Type | Socket Weld x Socket Weld |
| Configuration | Straight In-Line Coupling |
| Certification | Low Lead Certified NSF 61 |
| Primary Function | Joining Two Pipe Sections in a Straight Run |
| Primary Applications | Commercial, Industrial, Water and Process Piping Systems |
Socket Weld Coupling Construction
A socket weld coupling is designed with recessed socket ends that accept compatible pipe before welding. The fitting joins two pipe sections along the same centerline to create a straight, permanent connection.
The socket weld design provides a compact joint and eliminates the need for threaded engagement between the coupling and pipe.
Manufactured from 304 or 316 stainless steel, these couplings provide corrosion resistance and dependable performance in compatible commercial, industrial, water, and process piping systems.
Why Choose a Stainless Steel Socket Weld Coupling?
Permanent In-Line Connection
- Joins two compatible pipe sections
- Socket weld connection on both ends
- Maintains a straight piping centerline
- Provides a permanent welded joint
- Compact alternative to larger connection assemblies
Corrosion Resistance
- Resists rust and scale formation
- Suitable for demanding piping environments
- Resists attack from many industrial and chemical solutions and mixtures
- Helps maintain cleaner process media
- Provides long service life compared with many alternative metals
Socket Weld Coupling vs. Threaded Coupling
Socket Weld Coupling
- Pipe inserts into recessed socket ends
- Connections are completed by welding
- Provides a permanent in-line joint
- No threaded joint sealant is required at the socket weld connections
- Best suited for compatible welded piping systems
Threaded Coupling
- Uses female threaded connections
- Does not require welding
- Joins compatible male-threaded pipe
- Typically requires suitable thread sealant
- Different installation method from a socket weld coupling
304 vs. 316 Stainless Steel
304 Stainless Steel
304 stainless steel provides corrosion resistance for a wide range of general-purpose water, commercial, and industrial piping applications. It is commonly selected where dependable stainless steel performance is required without the additional corrosion resistance provided by 316 stainless steel.
316 Stainless Steel
316 stainless steel provides enhanced corrosion resistance for more aggressive environments and is commonly selected for applications involving chemicals, chlorides, process fluids, marine exposure, and other demanding service conditions.
Common Applications
Commercial & General Piping
- Water piping systems
- Mechanical piping installations
- Stainless steel utility piping
- Equipment connection piping
- Straight pipe extensions
Industrial & Process Applications
- Industrial process piping
- Chemical processing systems
- Water treatment applications
- Process fluid piping
- Corrosion-resistant welded piping assemblies
Installation & Selection Guidance
- Confirm the required nominal pipe size before ordering.
- Select 304 or 316 stainless steel based on the operating environment and required corrosion resistance.
- Verify that the mating pipe outside diameter and socket dimensions are compatible with both ends of the fitting.
- Confirm system pressure and temperature requirements before installation.
- Verify compatibility between the stainless steel fitting and the system media.
- Use appropriate socket weld procedures for the stainless steel grade and piping system.
- Maintain proper pipe insertion and weld preparation according to applicable fabrication requirements.
- Align both pipe sections before completing the welds.
- Inspect completed welds before placing the system into service.
- Installation should be completed in accordance with applicable piping codes, welding procedures, and project specifications.
Product Documents
Merit Brass Heavy Pattern 150# Dimensions
Review dimensional information for Merit Brass stainless steel MSS pattern fittings, including applicable socket weld coupling dimensions.
Common Pipe Diameters & Wall Thicknesses
Reference common pipe outside diameters and wall thicknesses when selecting compatible piping and socket weld components.
Need Help Selecting a Stainless Steel Socket Weld Coupling?
Our industrial PVF specialists can help review your pipe size, stainless steel grade, pressure requirements, application, and socket weld connection requirements before you order.
Frequently Asked Questions
What is a socket weld coupling used for?
A socket weld coupling is used to join two compatible pipe sections in a straight run using welded socket connections.
What pressure class is this fitting?
This fitting is listed as a 150# stainless steel socket weld coupling.
What stainless steel grades are available?
These couplings are available in 304 and 316 stainless steel.
What pattern does this fitting conform to?
The fitting is identified as an MSS SP-114 pattern stainless steel fitting.
Is this fitting low lead certified?
Yes. The supplied product information identifies these fittings as low lead certified to NSF 61.
What connection style does this coupling use?
The fitting uses socket weld connections on both ends, with compatible pipe inserted into the sockets before welding.
How is a socket weld coupling different from a threaded coupling?
A socket weld coupling uses welded joints for a permanent connection, while a threaded coupling connects two male-threaded pipe sections without welding.
What is the difference between 304 and 316 stainless steel?
Both grades provide strong corrosion resistance. 316 stainless steel generally provides additional resistance in more aggressive chemical, chloride, marine, and corrosive environments.
Can these couplings be used at elevated temperatures?
The supplied product information notes that stainless steel provides greater strength at elevated temperatures. Actual allowable pressure and temperature depend on the complete piping system and application requirements.
Where can I find fitting dimensions?
Use the Merit Brass Heavy Pattern 150# Dimensions document in the Product Documents section above.
Important Ordering Notes
- Product is a 150# stainless steel socket weld coupling.
- Available in 304 and 316 stainless steel grades.
- Manufactured as an MSS SP-114 pattern fitting.
- Low lead certified to NSF 61.
- Socket weld x socket weld connection configuration.
- Designed to join two pipe sections in a straight run.
- Confirm the nominal pipe size before ordering.
- Select the appropriate 304 or 316 stainless steel grade for the application.
- Verify pipe and socket dimensional compatibility before installation.
- Confirm system pressure, temperature, and media compatibility before use.
- Refer to the Merit Brass dimensional documentation for applicable fitting dimensions.
