Merit Brass
150# Stainless Steel Reducing Coupling MSS SP114
- SKU:
- M412-M612
- Availability:
- Usually Ships Same Day
- Weight:
- 0.00 LBS
Description
150# Stainless Steel Reducing Coupling MSS SP114
150# Stainless Steel Reducing Couplings MSS SP114 are threaded fittings designed to connect two different nominal pipe sizes in a straight run. The reducing configuration provides a compact transition between pipe sizes while maintaining the corrosion resistance, durability, and ease of installation associated with stainless steel threaded fittings.
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 providing dependable performance in demanding commercial, industrial, and process piping systems.
Product Highlights
- 150# stainless steel reducing coupling
- Designed to connect two different threaded pipe sizes
- Available in 304 and 316 stainless steel grades
- MSS SP-114 pattern fitting
- Low lead certified to NSF 61
- Compact in-line reducing configuration
- Corrosion-resistant stainless steel construction
- 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 straightforward threaded installation
- Long service-life potential in compatible applications
Technical Specifications
| Product Type | Reducing Coupling |
|---|---|
| Pressure Class | 150# |
| Material | Stainless Steel |
| Available Grades | 304 & 316 Stainless Steel |
| Pattern | MSS SP-114 |
| Connection Type | Female Threaded x Female Threaded |
| Configuration | Reducing |
| Certification | Low Lead Certified NSF 61 |
| Primary Function | Connecting Different Threaded Pipe Sizes |
| Primary Applications | Commercial, Industrial, Water and Process Piping Systems |
Reducing Coupling Construction
A reducing coupling provides female threaded connections of different nominal sizes, allowing two compatible male-threaded pipe sections to be connected while reducing from one pipe size to another.
The in-line configuration keeps the connected piping on a common centerline while providing the size transition within a single fitting.
Manufactured from 304 or 316 stainless steel, these reducing couplings provide corrosion resistance and dependable threaded performance in compatible commercial, industrial, water, and process piping applications.
Why Choose a Stainless Steel Reducing Coupling?
Compact Size Transition
- Connects two different nominal pipe sizes
- Provides the reduction within one fitting
- Maintains a straight in-line piping arrangement
- Helps simplify threaded piping layouts
- Reduces the need for multiple separate reducing components
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
Reducing Coupling vs. Standard Coupling
Reducing Coupling
- Connects two different nominal pipe sizes
- Female threaded connections on both ends
- Provides an in-line pipe size transition
- Useful where a compact threaded reduction is required
- Combines coupling and reducing functions in one fitting
Standard Coupling
- Typically connects matching nominal pipe sizes
- Female threaded connections on both ends
- Used to extend or join straight pipe runs
- Does not provide an integral size reduction
- Different application from a reducing 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
- Commercial plumbing systems
- Mechanical piping installations
- General threaded piping systems
- Pipe size transition points
Industrial & Process Applications
- Industrial process piping
- Chemical processing systems
- Water treatment applications
- Process fluid piping
- Corrosion-resistant piping systems
Installation & Selection Guidance
- Confirm both nominal connection sizes before ordering.
- Select 304 or 316 stainless steel based on the operating environment and required corrosion resistance.
- Verify that both mating male-threaded pipe sections are compatible with the reducing coupling.
- Confirm which side of the fitting requires the larger and smaller connection size.
- Verify system pressure and temperature requirements before installation.
- Confirm compatibility between the stainless steel fitting and the system media.
- Use appropriate thread sealant suitable for the piping material, media, pressure, and temperature.
- Avoid over-tightening threaded stainless steel connections.
- Inspect the completed connection for leaks before placing the system into service.
- Installation should be completed in accordance with applicable piping codes and project specifications.
Product Documents
Merit Brass Heavy Pattern 150# Dimensions
Review dimensional information for Merit Brass stainless steel MSS pattern fittings, including applicable reducing coupling dimensions.
Common Pipe Diameters & Wall Thicknesses
Reference common pipe outside diameters and wall thicknesses when selecting compatible piping and connection components.
Need Help Selecting a Stainless Steel Reducing Coupling?
Our industrial PVF specialists can help review your inlet and outlet sizes, stainless steel grade, pressure requirements, application, and thread requirements before you order.
Frequently Asked Questions
What is a stainless steel reducing coupling used for?
A reducing coupling is used to connect two compatible male-threaded pipe sections of different nominal sizes in a straight piping run.
What pressure class is this fitting?
This fitting is listed as a 150# stainless steel reducing coupling.
What stainless steel grades are available?
These reducing 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 reducing coupling low lead certified?
Yes. The supplied product information identifies these fittings as low lead certified to NSF 61.
How is a reducing coupling different from a standard coupling?
A reducing coupling connects two different nominal pipe sizes, while a standard coupling typically connects two pipe sections of the same nominal size.
What connection configuration does a reducing coupling use?
A reducing coupling uses female threaded connections on both ends, with different nominal connection sizes to provide the reduction.
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 fittings 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 reducing coupling.
- Available in 304 and 316 stainless steel grades.
- Manufactured as an MSS SP-114 pattern fitting.
- Low lead certified to NSF 61.
- Female threaded x female threaded reducing configuration.
- Confirm both nominal connection sizes before ordering.
- Verify which connection requires the larger and smaller size.
- Select the appropriate 304 or 316 stainless steel grade for the application.
- Verify thread compatibility with both mating pipe sections before installation.
- Confirm system pressure, temperature, and media compatibility before use.
- Refer to the Merit Brass dimensional documentation for applicable fitting dimensions.
