Charman Inc.
304 Stainless Steel 150# Threaded Reducing Coupling - SP112
- Availability:
- Usually in Stock – Ships Quickly
- Weight:
- 0.00 LBS
Description
304 Stainless Steel 150# Threaded Reducing Coupling - SP112
Charman Inc 304 Stainless Steel 150# Threaded Reducing Couplings - SP112 provide a compact straight transition between two different nominal pipe sizes in threaded piping systems. Manufactured from 304 stainless steel, these reducing couplings use female threaded connections for joining compatible male-threaded pipe, nipples, fittings, valves, and equipment connections.
The SP112 reducing coupling combines a straight connection and pipe-size transition in one fitting, making it useful for industrial, commercial, mechanical, utility, and process-piping systems where two different nominal threaded sizes must be connected.
Product Highlights
- Charman Inc SP112 threaded reducing coupling
- 304 stainless steel construction
- 150# threaded fitting
- Female threaded connections
- Connects two different nominal pipe sizes
- Straight reducing configuration
- Corrosion-resistant stainless steel construction
- Wide selection of reducing size combinations
- Threaded installation does not require welding
- Suitable for industrial, commercial, mechanical, utility, and process piping
Available Sizes & Part Numbers
| Part Number | Reducing Size | Series | UPC |
|---|---|---|---|
| 1304540 | 1/4" x 1/8" | SP112 | 847877034086 |
| 1304541 | 3/8" x 1/8" | SP112 | 847877034079 |
| 1304542 | 3/8" x 1/4" | SP112 | 847877034062 |
| 1304544 | 1/2" x 1/4" | SP112 | 847877034048 |
| 1304545 | 1/2" x 3/8" | SP112 | 847877034031 |
| 1304546 | 3/4" x 1/8" | SP112 | 847877034024 |
| 1304547 | 3/4" x 1/4" | SP112 | 847877034017 |
| 1304548 | 3/4" x 3/8" | SP112 | 847877034000 |
| 1304549 | 3/4" x 1/2" | SP112 | 847877033997 |
| 1304550 | 1" x 1/4" | SP112 | 847877033980 |
| 1304551 | 1" x 3/8" | SP112 | 847877033973 |
| 1304552 | 1" x 1/2" | SP112 | 847877033966 |
| 1304553 | 1" x 3/4" | SP112 | 847877033959 |
| 1304554 | 1-1/4" x 1/2" | SP112 | 847877033942 |
| 1304555 | 1-1/4" x 3/4" | SP112 | 847877033935 |
| 1304556 | 1-1/4" x 1" | SP112 | 847877033928 |
| 1304557 | 1-1/2" x 1/2" | SP112 | 847877033911 |
| 1304558 | 1-1/2" x 3/4" | SP112 | 847877033904 |
| 1304559 | 1-1/2" x 1" | SP112 | 847877033898 |
| 1304560 | 1-1/2" x 1-1/4" | SP112 | 847877033881 |
| 1304561 | 2" x 1/2" | SP112 | 847877033874 |
| 1304562 | 2" x 3/4" | SP112 | 847877033867 |
| 1304563 | 2" x 1" | SP112 | 847877033850 |
| 1304564 | 2" x 1-1/4" | SP112 | 847877033843 |
| 1304565 | 2" x 1-1/2" | SP112 | 847877033836 |
| 1304569 | 2-1/2" x 1-1/4" | SP112 | 847877033799 |
| 1304571 | 2-1/2" x 2" | SP112 | 847877033775 |
| 1304575 | 3" x 2" | SP112 | 847877033737 |
Technical Specifications
| Product Type | Threaded Reducing Coupling |
|---|---|
| Brand | Charman Inc |
| Series / Pattern | SP112 |
| Material | 304 Stainless Steel |
| Pressure Class | 150# |
| Connection | Female NPT x Female NPT |
| Configuration | Straight Reducing Coupling |
| Largest Available Connection | 3" |
| Smallest Available Connection | 1/8" |
| Number of Variants | 28 |
| Primary Function | Connecting two different nominal pipe sizes in a straight threaded piping run |
What Is an SP112 Threaded Reducing Coupling?
The Charman Inc SP112 threaded reducing coupling is a straight 304 stainless steel fitting with different-size female threaded connections at each end. It allows compatible male-threaded piping components of two different nominal pipe sizes to be connected directly.
Unlike an equal coupling, which uses the same nominal pipe size at both ends, a reducing coupling provides the size transition within the fitting itself.
Why Choose a 304 Stainless Steel SP112 Reducing Coupling?
304 Stainless Steel Construction
- Provides good general corrosion resistance
- Suitable for many industrial and commercial environments
- Durable construction for threaded piping systems
- Useful where stainless steel piping components are specified
- Well suited for process, utility, mechanical, and equipment applications
Compact Size Transition
- Connects two different nominal pipe sizes
- Maintains a straight piping arrangement
- Female threaded connections accept compatible male threaded components
- Can reduce the number of fittings required for a transition
- No welding required for threaded assembly
Common Applications
Industrial & Process Piping
- Process piping systems
- Industrial utility piping
- Distribution piping
- Equipment connections
- Threaded stainless steel assemblies
Commercial & Mechanical Systems
- Commercial plumbing
- Mechanical piping systems
- Pipe-size transitions
- Equipment and valve connections
- Maintenance and repair installations
Reducing Coupling vs. Equal Coupling
An equal threaded coupling connects two compatible male-threaded piping components of the same nominal pipe size. A reducing coupling performs the same straight connection while transitioning between two different nominal sizes.
The SP112 fittings in this listing are reducing couplings and should be selected by matching both required nominal pipe sizes.
Where an SP112 Reducing Coupling Makes Sense
- Transitioning between different nominal pipe sizes
- Connecting smaller piping to larger threaded equipment connections
- Reducing a straight threaded piping run
- Building compact stainless steel piping assemblies
- Connecting valves and equipment with different port sizes
- Industrial process and utility piping
- Mechanical and commercial piping systems
- Maintenance, repair, and retrofit installations
Ask Willy: Need Stainless Steel Fitting Information?
Review the Charman Inc stainless steel fittings specification sheet for product and dimensional information on SP112 threaded fittings, or use the complete stainless steel fittings catalog to compare available fitting styles, configurations, and sizes before ordering.
Installation & Selection Guidance
- Confirm both required nominal pipe sizes before ordering.
- Verify that both mating components have compatible male threaded connections.
- Confirm that a straight reducing coupling is appropriate for the piping layout.
- Confirm that 304 stainless steel is compatible with the intended service.
- Inspect fitting and mating threads for damage or contamination before assembly.
- Use a thread-sealing method appropriate for the system media, pressure, temperature, and application.
- Begin threaded assembly carefully to reduce the risk of cross-threading.
- Tighten connections using appropriate tools and accepted threaded-piping practices.
- Avoid excessive tightening that could damage the coupling or mating threads.
- Support connected piping to avoid excessive mechanical loading on the fitting.
- Confirm system pressure and temperature requirements before installation.
- Pressure-test completed piping assemblies where required.
- Installation should be completed by qualified personnel and in accordance with applicable codes and specifications.
Product Selection Considerations
Larger Connection Size
Identify the larger nominal pipe connection required by the piping system or equipment. The first dimension in each listed configuration represents the larger nominal size.
Smaller Connection Size
Identify the smaller nominal pipe size and select the SP112 coupling that matches both required dimensions. Verify both ends before ordering.
Need Help Selecting a Stainless Steel Pipe Fitting?
Our industrial PVF specialists can help review your larger pipe size, smaller pipe size, threaded connection requirements, stainless steel requirements, and installation conditions before you order.
Frequently Asked Questions
What is the Charman Inc SP112 reducing coupling?
It is a 304 stainless steel 150# threaded fitting used to connect two different nominal pipe sizes in a straight piping run.
What connections does the reducing coupling use?
The reducing coupling uses threaded connections designed to connect compatible male-threaded piping components.
What material are these reducing couplings made from?
The SP112 reducing couplings in this listing are manufactured from 304 stainless steel.
What pressure class are these fittings?
These SP112 reducing couplings are 150# threaded fittings.
How is a reducing coupling different from an equal coupling?
A reducing coupling connects two different nominal pipe sizes, while an equal coupling connects components of the same nominal size.
Does the SP112 reducing coupling require welding?
No. The fitting uses threaded connections and does not require welding for normal threaded installation.
How do I read the reducing size?
The first dimension represents the larger nominal connection and the second dimension represents the smaller nominal connection.
Should thread sealant be used?
Use a thread-sealing method appropriate for the system media, pressure, temperature, fitting materials, and applicable installation requirements.
How do I choose the correct reducing coupling?
Select the SP112 coupling that matches both nominal pipe sizes of the compatible threaded components being connected.
Important Ordering Notes
- This listing is for Charman Inc SP112 304 stainless steel 150# threaded reducing couplings.
- These fittings connect two different nominal pipe sizes.
- Select the variation by matching both the larger and smaller connection sizes.
- This listing contains 28 reducing configurations.
- Each variation has its own SKU and UPC.
- Confirm both mating components have compatible threaded connections before ordering.
- Confirm that 304 stainless steel is compatible with the intended service and environment.
- Confirm system pressure and temperature requirements before installation.
- Review the linked Charman Inc stainless steel fittings specification sheet and complete catalog when additional product information is required.
- Installation should be completed in accordance with applicable piping practices and codes.
