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4 x 2-1/2 in. Malleable Iron Coupling. STD Rating, Threaded Connection, Reducing Domestic

Item No. M116510
This 4 x 2-1/2 in. Reducing Coupling is made from Malleable Iron with a Threaded connection. It has a STD pressure rating. Commercial market.Conforms to ASME B16.3 Couplings are used to join pipes or tubes in a straight line. They are primarily utilized to extend pipe runs or to repair a damaged
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Description

This 4 x 2-1/2 in. Reducing Coupling is made from Malleable Iron with a Threaded connection. It has a STD pressure rating. Commercial market.Conforms to ASME B16.3

Couplings are used to join pipes or tubes in a straight line. They are primarily utilized to extend pipe runs or to repair a damaged section of pipe. Couplings are among the most common and essential components in piping systems in plumbing, marine, and industrial contexts.

Malleable iron is a type of cast iron that has subjected to a heating process called annealing. This process greatly increases the strength and ductility of the material by altering its internal molecular structure. The resulting Malleable Iron is a material that can be used for casting like iron, but also offers many of the mechanical properties of steel.

Applications of Couplings

  • Pipe Repair
  • Extending Pipelines
  • Connecting Equipment to Systems

Advantages of Malleable Iron

  • Improved Strength and Ductility
  • Resistant to Corrosion
  • Stronger than Ordinary Iron


Tork Systems offers an extensive range of valves, pipe, fittings, and flanges that are critical to ship repair projects and other marine applications. Our markets include US Navy, Coast Guard, and Commercial marine vessels. Let our team of marine experts can help you find the parts you need to Get Ship Done.

Specifications

Type
Coupling
Size
4 x 2-1/2 in.
​Product Description
4 x 2-1/2 in. Malleable Iron Coupling. STD Rating, Threaded Connection, Reducing Domestic
Pressure Class
STD
Material Family
Iron
Material Grade
Malleable Iron
Mil-Spec
ASME B16.3
Connection
Threaded
Full Specifications
4 x 2-1/2 in. Coupling Pipe Fitting Black Malleable Iron Standard Threaded Coupling Domestic
U_ItemRemarks
Reducing

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Item No. M116510

4 x 2-1/2 in. Malleable Iron Coupling. STD Rating, Threaded Connection, Reducing Domestic

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Specifications

Type
Coupling
Size
4 x 2-1/2 in.
​Product Description
4 x 2-1/2 in. Malleable Iron Coupling. STD Rating, Threaded Connection, Reducing Domestic
Pressure Class
STD
Material Family
Iron
Material Grade
Malleable Iron
Mil-Spec
ASME B16.3
Connection
Threaded
Full Specifications
4 x 2-1/2 in. Coupling Pipe Fitting Black Malleable Iron Standard Threaded Coupling Domestic
U_ItemRemarks
Reducing

Description

This 4 x 2-1/2 in. Reducing Coupling is made from Malleable Iron with a Threaded connection. It has a STD pressure rating. Commercial market.Conforms to ASME B16.3

Couplings are used to join pipes or tubes in a straight line. They are primarily utilized to extend pipe runs or to repair a damaged section of pipe. Couplings are among the most common and essential components in piping systems in plumbing, marine, and industrial contexts.

Malleable iron is a type of cast iron that has subjected to a heating process called annealing. This process greatly increases the strength and ductility of the material by altering its internal molecular structure. The resulting Malleable Iron is a material that can be used for casting like iron, but also offers many of the mechanical properties of steel.

Applications of Couplings

  • Pipe Repair
  • Extending Pipelines
  • Connecting Equipment to Systems

Advantages of Malleable Iron

  • Improved Strength and Ductility
  • Resistant to Corrosion
  • Stronger than Ordinary Iron


Tork Systems offers an extensive range of valves, pipe, fittings, and flanges that are critical to ship repair projects and other marine applications. Our markets include US Navy, Coast Guard, and Commercial marine vessels. Let our team of marine experts can help you find the parts you need to Get Ship Done.
***All trademarked and copyrighted materials, including logos, are the sole property of their respective owners. This product is not affiliated with, endorsed by, or sponsored by these owners. References to third-party trademarks or copyrights are for informational purposes only, without implying any association or endorsement. We respect intellectual property rights. Any concerns should be promptly addressed. While efforts have been made for accuracy, errors may occur. Claims, warranties, and liabilities related to third-party trademarks or copyrighted materials rest with the product manufacturer or seller. By using this product, you agree to these terms. If you disagree, please refrain from using the product.
***All trademarked and copyrighted materials, including logos, are the sole property of their respective owners. This product is not affiliated with, endorsed by, or sponsored by these owners. References to third-party trademarks or copyrights are for informational purposes only, without implying any association or endorsement. We respect intellectual property rights. Any concerns should be promptly addressed. While efforts have been made for accuracy, errors may occur. Claims, warranties, and liabilities related to third-party trademarks or copyrighted materials rest with the product manufacturer or seller. By using this product, you agree to these terms. If you disagree, please refrain from using the product.
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Tork Systems, Inc.
Phone: +1 (800) 867-5514

2900 Main St., Bldg 140D

Alameda, CA 94501

© Copyright 2026 Tork Systems, Inc. All rights reserved.Â