Charman Inc.
304 Stainless Steel 150# Threaded Coupling - SP112
- Availability:
- Usually in Stock – Ships Quickly
- Weight:
- 0.00 LBS
Description
304 Stainless Steel 150# Threaded Coupling - SP112
Charman Inc 304 Stainless Steel 150# Threaded Couplings - SP112 provide a durable, corrosion-resistant way to join two compatible male-threaded pipes, nipples, or components in a straight piping run. Available in nominal pipe sizes from 1/8" through 4", these full couplings are well suited for industrial, commercial, mechanical, and process-piping installations.
The female NPT connections on both ends allow the coupling to connect two male NPT components without welding. Charman stainless steel threaded fitting dimensions conform to MSS SP-114 except for wall and band requirements, while NPT threads conform to ASME B1.20.1.
Product Highlights
- Charman Inc SP112 full threaded coupling
- 304 stainless steel construction
- 150# threaded fitting
- Female NPT x Female NPT connection
- Connects two compatible male-threaded piping components in a straight run
- Corrosion-resistant stainless steel construction
- Stainless steel castings conform to ASTM A351
- Fitting dimensions conform to MSS SP-114 except wall and bands
- NPT threads conform to ASME B1.20.1
- Available in nominal pipe sizes from 1/8" through 4"
- Threaded installation eliminates the need for welding
- Suitable for industrial, commercial, mechanical, and process-piping systems
Technical Specifications
| Product Type | Full Threaded Coupling |
|---|---|
| Brand | Charman Inc |
| Series / Pattern | SP112 |
| Material | 304 Stainless Steel |
| Pressure Class | 150# |
| Connection | Female NPT x Female NPT |
| Available Sizes | 1/8", 1/4", 3/8", 1/2", 3/4", 1", 1-1/4", 1-1/2", 2", 2-1/2", 3" and 4" |
| Casting Material Standard | ASTM A351 |
| Dimensional Standard | MSS SP-114, except wall and bands |
| Thread Standard | ASME B1.20.1 NPT |
| Primary Function | Joining two compatible male-threaded piping components in a straight connection |
What Is an SP112 Threaded Coupling?
The Charman Inc SP112 threaded coupling is a straight fitting with female NPT threads at both ends. It is designed to join two compatible male-threaded pipes, nipples, fittings, or equipment connections of the same nominal pipe size.
A full coupling provides threaded engagement from both ends and is commonly used when extending a piping run, joining threaded components, completing equipment connections, or creating a removable straight-line connection without welding.
Why Choose a 304 Stainless Steel SP112 Coupling?
304 Stainless Steel Construction
- 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
- Clean stainless steel construction for mechanical and process applications
Female NPT Connections
- Female threads on both ends
- Connects two compatible male NPT components
- No welding required for installation
- Provides a removable mechanical connection
- Available across a broad range of nominal pipe sizes
Common Applications
Industrial & Process Piping
- Process piping systems
- Industrial utility piping
- Equipment connections
- Maintenance and repair installations
- Threaded manifolds and assemblies
Commercial & Mechanical Systems
- Commercial plumbing
- Mechanical piping systems
- Stainless steel threaded piping
- Fabricated piping assemblies
- Pipe extensions and straight-line connections
Full Coupling vs. Half Coupling
A full coupling is designed to connect piping components through both ends of the fitting and is commonly used to join two male-threaded components in line. A half coupling is shorter and is often used where only one threaded connection is required, including certain vessel, tank, or fabricated piping applications.
The SP112 products in this listing are full threaded couplings with female NPT connections at both ends.
Where an SP112 Full Coupling Makes Sense
- Joining two male-threaded pipes or nipples of the same size
- Extending a straight threaded piping run
- Connecting threaded equipment or instrumentation components
- Repairing or modifying an existing threaded piping system
- Building removable threaded piping assemblies
- Applications where welding is unnecessary or impractical
Ask Willy: Need Stainless Steel Fitting Information?
Review the Charman Inc stainless steel fittings specification sheet for material, thread, and dimensional information, or use the complete stainless steel fittings catalog to confirm SP112 coupling sizes and compare other available stainless steel fitting configurations.
Installation & Selection Guidance
- Confirm the required nominal pipe size before ordering.
- Verify that both mating components have compatible male NPT threads.
- 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 and operating conditions.
- Begin threaded assembly carefully to avoid cross-threading.
- Tighten using appropriate tools and accepted threaded-piping practices.
- Avoid excessive tightening that may damage the fitting or mating threads.
- Confirm pressure and temperature requirements for the complete piping system.
- Support connected piping appropriately to avoid unnecessary loading on the coupling.
- Pressure-test completed piping assemblies where required.
- Installation should be performed by qualified personnel and in accordance with applicable codes and specifications.
Product Selection Considerations
Nominal Pipe Size
Select the SP112 coupling based on the nominal pipe size of the two male NPT components being joined. Sizes in this listing range from 1/8" through 4".
Material Compatibility
Confirm that 304 stainless steel is suitable for the system media, environment, operating temperature, pressure, and other application requirements before installation.
Need Help Selecting a Stainless Steel Pipe Fitting?
Our industrial PVF specialists can help review your pipe size, connection type, stainless steel requirements, application, and installation conditions before you order.
Frequently Asked Questions
What is the Charman Inc SP112 coupling?
The SP112 is a 304 stainless steel 150# full threaded coupling with female NPT connections at both ends.
What is an SP112 threaded coupling used for?
It is used to join two compatible male-threaded pipes, nipples, fittings, or equipment connections in a straight piping run.
What material is the SP112 coupling made from?
The fittings in this listing are manufactured from 304 stainless steel.
What connections does the coupling have?
The coupling has female NPT threads at both ends.
What SP112 coupling sizes are available?
This listing includes 1/8", 1/4", 3/8", 1/2", 3/4", 1", 1-1/4", 1-1/2", 2", 2-1/2", 3", and 4" nominal pipe sizes.
What standard applies to the NPT threads?
Charman Inc specifies NPT threads conforming to ASME B1.20.1.
What dimensional standard applies to these fittings?
Charman Inc specifies stainless fitting dimensions conforming to MSS SP-114 except for wall and band requirements.
Does a threaded coupling require welding?
No. The fitting joins compatible male NPT connections using its internal female threads and does not require welding.
What is the difference between a full coupling and a half coupling?
A full coupling provides connections from both ends and is typically used to join two piping components. A half coupling is shorter and is commonly used where a single connection point is required.
Should thread sealant be used?
Use a thread-sealing method suitable for the piping materials, system media, pressure, temperature, and applicable installation requirements.
Important Ordering Notes
- This listing is for Charman Inc SP112 304 stainless steel 150# full threaded couplings.
- Select the required nominal pipe size from the available options.
- Connections are female NPT x female NPT.
- Available sizes range from 1/8" through 4".
- Confirm that both mating components have the correct male NPT size before ordering.
- Confirm that 304 stainless steel is compatible with the intended service and environment.
- Confirm system pressure and temperature requirements before installation.
- Use suitable thread sealant where required by the application.
- Review the linked Charman Inc specification sheet and complete stainless steel fittings catalog when additional product information is required.
- Installation should be completed in accordance with applicable piping practices and codes.
