Charman Inc.
316 Stainless Steel 150# Threaded Square Head Solid Plug - SP112
- Availability:
- Usually in Stock – Ships Quickly
- Weight:
- 0.00 LBS
Description
316 Stainless Steel 150# Threaded Square Head Solid Plug - SP112
Charman Inc 316 Stainless Steel 150# Threaded Square Head Solid Plugs - SP112 are designed to close compatible female-threaded openings in piping systems, fittings, valves, manifolds, and equipment connections. Manufactured from 316 stainless steel, these solid plugs provide a compact threaded termination with a square head for wrench engagement during installation and removal.
This listing includes nominal pipe sizes from 1/4" through 2". Each variation has its own Charman Inc. SKU and UPC for accurate product and inventory identification.
Product Highlights
- Charman Inc SP112 square head solid plug
- 316 stainless steel construction
- 150# threaded fitting
- Male threaded connection
- Solid plug configuration
- Square head provides wrenching surfaces
- Designed to close compatible female-threaded openings
- Corrosion-resistant stainless steel construction
- Available in nominal pipe sizes from 1/4" through 2"
- Threaded installation does not require welding
Available Sizes & Part Numbers
| Part Number | Nominal Pipe Size | Series | UPC |
|---|---|---|---|
| 1316471 | 1/4" | SP112 | 847877031597 |
| 1316472 | 3/8" | SP112 | 847877031580 |
| 1316473 | 1/2" | SP112 | 847877031573 |
| 1316474 | 3/4" | SP112 | 847877031566 |
| 1316475 | 1" | SP112 | 847877031559 |
| 1316476 | 1-1/4" | SP112 | 847877031542 |
| 1316477 | 1-1/2" | SP112 | 847877031535 |
| 1316478 | 2" | SP112 | 847877031528 |
Technical Specifications
| Product Type | Threaded Square Head Solid Plug |
|---|---|
| Brand | Charman Inc |
| Series / Pattern | SP112 |
| Material | 316 Stainless Steel |
| Pressure Class | 150# |
| Connection | Male NPT |
| Configuration | Square Head Solid Plug |
| Available Sizes | 1/4", 3/8", 1/2", 3/4", 1", 1-1/4", 1-1/2" and 2" |
| Primary Function | Closing and terminating a compatible female-threaded opening |
What Is an SP112 Square Head Solid Plug?
The Charman Inc SP112 square head solid plug is a 316 stainless steel fitting with a male threaded connection and a closed solid body. It threads into a compatible female-threaded opening to terminate or seal an unused connection.
The square head provides external wrenching surfaces that help with installation and removal, making the plug useful where a removable threaded closure is required.
Why Choose a 316 Stainless Steel SP112 Solid Plug?
316 Stainless Steel Construction
- Provides strong general corrosion resistance
- Useful in many industrial and process environments
- Suitable where 316 stainless steel piping components are specified
- Durable construction for threaded piping systems
- Well suited for utility, mechanical, process, and equipment applications
Square Head Design
- Provides wrenching surfaces for installation and removal
- Male threaded connection installs into a compatible female opening
- Solid body closes the connection
- Compact threaded termination
- Can be removed later if access to the connection is required
Common Applications
Industrial & Process Piping
- Process piping systems
- Industrial utility piping
- Threaded stainless steel assemblies
- Unused branch connections
- Maintenance and repair piping
Equipment & Mechanical Systems
- Valve ports
- Manifold connections
- Equipment openings
- Instrumentation connection points
- Future expansion connections
Plug vs. Cap
A threaded plug uses a male threaded connection and installs into a compatible female-threaded opening. A threaded cap uses a female threaded connection and installs over a compatible male-threaded component.
Select this SP112 square head plug when the opening being closed has an internal female thread.
Square Head Plug vs. Hex Head Plug
A square head plug uses a four-sided external head for wrench engagement. Other plug styles may use a hexagonal head, recessed drive, or another wrenching configuration.
Select the head style that best fits the installation space, maintenance practices, and tooling requirements of the piping system.
Where an SP112 Square Head Solid Plug Makes Sense
- Closing unused female-threaded piping connections
- Terminating branch openings
- Closing valve or manifold ports
- Providing a removable closure for future expansion
- Closing equipment and instrumentation ports
- Building threaded stainless steel assemblies
- Industrial process and utility piping
- Commercial and mechanical 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 the required nominal pipe size before ordering.
- Verify that the mating opening has a compatible female thread.
- Confirm that a solid plug is appropriate for the intended closure.
- Confirm that 316 stainless steel is compatible with the intended service.
- Inspect the plug 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.
- Use the square head for wrench engagement during installation.
- Avoid excessive tightening that could damage the plug or mating threads.
- Confirm adequate clearance is available around the square head for installation tools.
- 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
Nominal Pipe Size
Select the SP112 plug that matches the nominal pipe size of the compatible female-threaded opening. Available sizes range from 1/4" through 2".
Plug vs. Cap
Use a plug when closing a female-threaded opening. If the connection being closed has external male threads, select an appropriate threaded cap instead.
Need Help Selecting a Stainless Steel Pipe Fitting?
Our industrial PVF specialists can help review your thread size, female connection, closure requirements, 316 stainless steel requirements, and installation conditions before you order.
Frequently Asked Questions
What is the Charman Inc SP112 square head solid plug?
It is a 316 stainless steel 150# threaded fitting with a male threaded connection and solid body used to close a compatible female-threaded opening.
What connection does the plug use?
The SP112 square head solid plug uses a male threaded connection for installation into a compatible female-threaded opening.
What material are these plugs made from?
The SP112 plugs in this listing are manufactured from 316 stainless steel.
What pressure class are these fittings?
The SP112 square head solid plugs in this listing are 150# threaded fittings.
What sizes are available?
This listing includes 1/4", 3/8", 1/2", 3/4", 1", 1-1/4", 1-1/2", and 2" nominal pipe sizes.
Why does the plug have a square head?
The square head provides wrenching surfaces that assist with installation and removal.
What is the difference between a plug and a cap?
A plug has male threads and installs into a female-threaded opening. A cap has female threads and installs over a male-threaded connection.
Does the SP112 plug require welding?
No. The fitting uses a threaded connection and does not require welding for normal threaded installation.
Should thread sealant be used?
Use a thread-sealing method appropriate for the system media, pressure, temperature, fitting materials, and applicable installation requirements.
Important Ordering Notes
- This listing is for Charman Inc SP112 316 stainless steel 150# threaded square head solid plugs.
- These plugs use male threaded connections.
- Select the required nominal pipe size from the available options.
- Available sizes range from 1/4" through 2".
- Each variation has its own SKU and UPC.
- Confirm the mating opening has the correct female thread size before ordering.
- Confirm that 316 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.
