Charman Inc.

316 Stainless Steel 150# Threaded Coupling - SP112

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  • 316 Stainless Steel 150# Threaded Coupling - SP112
  • 316 Stainless Steel 150# Threaded Coupling - SP112 Spec. Image
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Description

316 Stainless Steel 150# Threaded Coupling - SP112

Charman Inc 316 Stainless Steel 150# Threaded Couplings - SP112 provide a straight connection between compatible male-threaded piping components of the same nominal pipe size. Manufactured from 316 stainless steel, these couplings are available in nominal pipe sizes from 1/8" through 4" for industrial, commercial, mechanical, utility, and process-piping applications.

The female threaded connections at both ends allow compatible threaded pipe, nipples, fittings, valves, and equipment connections to be joined without welding. Select the coupling that matches the nominal pipe size required for the piping system.

Product Highlights

  • Charman Inc SP112 threaded coupling
  • 316 stainless steel construction
  • 150# threaded fitting
  • Female threaded connections
  • Straight equal-size coupling configuration
  • Connects compatible male-threaded components of the same nominal size
  • Corrosion-resistant stainless steel construction
  • Available in nominal pipe sizes from 1/8" through 4"
  • Threaded installation does not require welding
  • Suitable for industrial, commercial, mechanical, utility, and process piping

Available Sizes & Part Numbers

Part Number Nominal Pipe Size Series UPC
1316320 1/8" SP112 847877032686
1316321 1/4" SP112 847877032679
1316322 3/8" SP112 847877032662
1316323 1/2" SP112 847877032655
1316324 3/4" SP112 847877032648
1316325 1" SP112 847877032631
1316326 1-1/4" SP112 847877032624
1316327 1-1/2" SP112 847877032617
1316328 2" SP112 847877032600
1316329 2-1/2" SP112 847877032594
1316330 3" SP112 847877032587
1316331 4" SP112 847877032570

Technical Specifications

Product Type Threaded Coupling
Brand Charman Inc
Series / Pattern SP112
Material 316 Stainless Steel
Pressure Class 150#
Connection Female NPT x Female NPT
Configuration Straight Equal Coupling
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"
Primary Function Joining compatible male-threaded piping components of the same nominal pipe size

What Is an SP112 Threaded Coupling?

The Charman Inc SP112 threaded coupling is a straight 316 stainless steel fitting designed to join two compatible male-threaded piping components of the same nominal pipe size. Female threaded connections are provided at both ends of the coupling.

Couplings are commonly used to extend threaded piping runs, join threaded pipe or nipples, make repairs, and connect compatible threaded components while maintaining the same nominal pipe size through the fitting.

Why Choose a 316 Stainless Steel SP112 Coupling?

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

Straight Threaded Connection

  • Connects equal nominal pipe sizes
  • Female threaded connections at both ends
  • Accepts compatible male-threaded piping components
  • Useful for extending and joining threaded piping runs
  • No welding required for normal threaded assembly

Common Applications

Industrial & Process Piping

  • Process piping systems
  • Industrial utility piping
  • Threaded stainless steel assemblies
  • Equipment piping connections
  • Maintenance and repair piping

Commercial & Mechanical Systems

  • Commercial plumbing
  • Mechanical piping systems
  • Threaded pipe extensions
  • Equipment and valve assemblies
  • Retrofit and repair installations

Coupling vs. Reducing Coupling

An equal threaded coupling connects two compatible male-threaded components of the same nominal pipe size. A reducing coupling connects two different nominal pipe sizes while maintaining a straight piping configuration.

The SP112 couplings in this listing are equal-size couplings. Select the variation that matches the nominal pipe size on both mating components.

Where an SP112 Threaded Coupling Makes Sense

  • Joining two sections of compatible threaded pipe
  • Connecting threaded pipe and nipples
  • Extending an existing threaded piping run
  • Building stainless steel threaded assemblies
  • Repairing or modifying threaded piping systems
  • Connecting compatible valves, fittings, and equipment
  • Industrial process and utility piping
  • Commercial and mechanical piping systems
Willy providing stainless steel fitting guidance

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 both mating components have compatible male threaded connections.
  • Confirm that an equal-size straight coupling is appropriate for the piping layout.
  • Confirm that 316 stainless steel is compatible with the intended service.
  • Inspect the coupling 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

Nominal Pipe Size

Select the SP112 coupling that matches the nominal pipe size of both compatible male-threaded components. Available sizes range from 1/8" through 4".

Equal vs. Reducing Connection

Use this equal coupling when both connections are the same nominal size. If the piping system requires a transition between different nominal sizes, select an appropriate reducing coupling instead.

 

Need Help Selecting a Stainless Steel Pipe Fitting?

Our industrial PVF specialists can help review your pipe size, thread configuration, 316 stainless steel requirements, fitting selection, and installation conditions before you order.

Frequently Asked Questions

What is the Charman Inc SP112 threaded coupling?

It is a 316 stainless steel 150# threaded fitting used to join compatible male-threaded piping components of the same nominal pipe size.

What connections does the coupling use?

The coupling has female threaded connections at both ends for compatible male-threaded piping components.

What material are these couplings made from?

The SP112 couplings in this listing are manufactured from 316 stainless steel.

What pressure class are these fittings?

The SP112 couplings in this listing are 150# threaded fittings.

What sizes are available?

This listing includes nominal pipe sizes of 1/8", 1/4", 3/8", 1/2", 3/4", 1", 1-1/4", 1-1/2", 2", 2-1/2", 3", and 4".

What is the difference between an equal coupling and a reducing coupling?

An equal coupling connects components of the same nominal pipe size. A reducing coupling connects two different nominal pipe sizes.

Does the SP112 coupling require welding?

No. The fitting uses threaded connections 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.

How do I choose the correct coupling size?

Select the coupling that matches the nominal pipe size of both compatible male-threaded components being joined.

Important Ordering Notes

  • This listing is for Charman Inc SP112 316 stainless steel 150# threaded couplings.
  • These are equal-size straight couplings with female threaded connections at both ends.
  • Select the required nominal pipe size from the available options.
  • Available sizes range from 1/8" through 4".
  • Each variation has its own SKU and UPC.
  • Confirm both mating components have compatible male threads 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.
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