China best Copper Reducer Coupling for Medical Gas

Product Description

Copper Reducer Coupling for Medical Gas

Production Specifications

Alloy: C12200, Cu-DHP
Size range: OD size from 1/4″ to 4-1/8″ (from 6mm to 108mm)
Type: CxC, FTGx C
Marking: our brand name + size
Packing: Sealed by plastic bag, packing in strong sea worthy carton and palletized
Standard: ASME B16.22, EN 1254-1
Application: for plumbing, refrigeration and medical gas
Delivery time: 4-5 weeks
Copper Fittings Dimensions

Nominal Size Male End (inch) Female End (inch) Wall Thickness
Outside Diameter Length Inside Diameter Depth
Min. Max. Min. Min. Max. Min. Min.
1/4″ 0.373 0.376 0.38 0.377 0.381 0.31 0.571
3/8″ 0.497 0.501 0.44 0.502 0.506 0.38 0.026
1/2″ 0.622 0.626 0.56 0.627 0.631 0.50 0.571
5/8″ 0.747 0.751 0.69 0.752 0.756 0.62 0.031
3/4″ 0.872 0.876 0.81 0.877 0.881 0.75 0.033
1″ 1.122 1.127 0.97 1.128 1.132 0.91 0.040
1-1/4″ 1.372 1.377 1.03 1.378 1.382 0.97 0.044
1-1/2″ 1.621 1.627 1.16 1.628 1.633 1.09 0.051
2″ 2.121 2.127 1.41 2.128 2.133 1.34 0.059
2-1/2″ 2.621 2.627 1.53 2.628 2.633 1.47 0.067
3″ 3.121 3.127 1.72 3.128 3.133 1.66 0.075
3-1/2″ 3.621 3.627 1.97 3.628 3.633 1.91 0.086
4″ 4.121 4.127 2.22 4.128 4.133 2.16 0.096


 Copper Fittings Internal Working Pressure

Nominal Size Internal Working Pressure (psi)
-20-100°F 150°F 200°F 250°F 300°F 350°F 400°F
1/4″ 912 725 729 729 714 608 456
3/8″ 779 662 623 623 610 519 389
1/2″ 722 613 577 577 565 481 361
5/8″ 631 537 505 505 495 421 316
3/4″ 582 495 466 466 456 388 291
1″ 494 420 395 395 387 330 247
1-1/4″ 439 373 351 351 344 293 219
1-1/2″ 408 347 327 327 320 272 204
2″ 364 309 291 291 285 242 182
2-1/2″ 336 285 269 269 263 224 168
3″ 317 270 254 254 248 211 159
3-1/2″ 304 258 243 243 238 202 152
4″ 293 249 235 235 230 196 147






reducer coupling

Can a Reducer Coupling be Threaded or Welded onto Pipes?

Yes, a reducer coupling can be either threaded or welded onto pipes, depending on the specific design and intended application. The two methods of connection offer different advantages and considerations:

  • Threaded Connection: Some reducer couplings come with threaded ends, allowing them to be easily screwed onto the pipe ends. This type of connection is convenient for systems that may need disassembly or reconfiguration in the future. Threaded couplings can be installed and removed without requiring specialized tools or welding equipment. However, it is essential to use thread sealants or Teflon tape to ensure a tight and leak-free connection.
  • Welded Connection: In some applications, it may be more appropriate to weld the reducer coupling onto the pipes. This method provides a permanent and robust connection that is well-suited for high-pressure or critical systems. Welded joints offer excellent strength and sealing, making them less prone to leaks compared to threaded connections. However, welding requires specialized skills and equipment, and the process can be more time-consuming and irreversible.

The choice between threaded and welded connections depends on various factors, including the system’s pressure and temperature requirements, the pipe material, and the level of permanence desired. Here are some considerations for each method:

  • Threaded Connection Considerations:
  • Quick and easy installation without the need for welding.
  • May be suitable for low to medium pressure systems.
  • Threaded joints may require periodic inspection and re-tightening to maintain their integrity.
  • Potential for leakage if not properly sealed or maintained.
  • Welded Connection Considerations:
  • Provides a permanent and reliable connection.
  • Well-suited for high-pressure and critical systems.
  • Minimal risk of leakage when welded correctly.
  • Requires skilled welders and proper welding equipment.
  • Difficult to disassemble or modify once welded.

When choosing between threaded and welded connections for a reducer coupling, it is crucial to consider the specific requirements of the system, as well as the available resources and expertise for installation. Consulting with qualified engineers or professionals can help determine the most suitable connection method for a given application.

reducer coupling

Can a Reducer Coupling Be Used in Both Residential and Industrial Plumbing Applications?

Yes, a reducer coupling can be used in both residential and industrial plumbing applications. Reducer couplings are versatile pipe fittings that are commonly used in various plumbing systems to transition between pipes of different diameters. They are available in different materials and sizes to accommodate a wide range of applications, making them suitable for both residential and industrial settings.

Residential Plumbing: In residential plumbing, reducer couplings are often used to join pipes of different sizes when connecting fixtures or appliances. For example, in a home’s plumbing system, a reducer coupling can be used to transition from a larger diameter main water supply line to a smaller diameter branch line that feeds a faucet or toilet. They are also used in drainage systems to connect pipes of different sizes, such as when connecting a large-diameter sewer line to a smaller diameter drainpipe from a sink or bathtub.

Industrial Plumbing: In industrial plumbing, reducer couplings play a crucial role in connecting pipes in various applications. Industries such as manufacturing, chemical processing, oil and gas, and wastewater treatment often require complex piping systems with different pipe sizes. Reducer couplings allow for efficient flow transitions, ensuring optimal performance and meeting specific industrial requirements. They are used in large-scale systems, such as industrial water supply networks, chemical processing plants, and industrial drainage systems.

Material Selection: The choice of material for the reducer coupling depends on the specific application and the fluid being conveyed. In residential plumbing, common materials like PVC, copper, or brass are often used due to their corrosion resistance and cost-effectiveness. In industrial applications, materials like stainless steel, carbon steel, and ductile iron may be used, depending on factors such as the fluid’s corrosiveness, pressure, and temperature.

Installation: Whether in residential or industrial settings, the installation of reducer couplings follows similar principles. The two pipes with different diameters are inserted into each end of the coupling, and appropriate fasteners or welding methods are used to secure the connection. Proper installation ensures a leak-free and reliable joint.

In summary, reducer couplings are versatile fittings suitable for both residential and industrial plumbing applications. They are used to transition between pipes of different diameters, providing efficient flow connections in various fluid conveyance systems. The choice of material and installation method depends on the specific requirements of each application, making reducer couplings a valuable component in both residential and industrial plumbing systems.

reducer coupling

What are the Standard Sizes and Dimensions of Reducer Couplings?

Reducer couplings come in a variety of standard sizes and dimensions to accommodate different pipe diameters. The sizes and dimensions of reducer couplings are typically specified in terms of the nominal pipe size (NPS) and the outside diameter (OD) of the pipe.

For example, a common type of reducer coupling is a “concentric reducer,” where the center axis of the two pipe ends remains in line. The standard sizes of concentric reducer couplings include:

  • 1/2″ x 1/4″ NPS
  • 3/4″ x 1/2″ NPS
  • 1″ x 3/4″ NPS
  • 1-1/4″ x 1″ NPS
  • 1-1/2″ x 1-1/4″ NPS
  • 2″ x 1-1/2″ NPS
  • 2-1/2″ x 2″ NPS
  • 3″ x 2-1/2″ NPS
  • 4″ x 3″ NPS
  • 6″ x 4″ NPS
  • 8″ x 6″ NPS
  • 10″ x 8″ NPS
  • 12″ x 10″ NPS

It’s important to note that the dimensions of the reducer coupling, including the overall length and the transition length, may vary depending on the specific manufacturer and industry standards. The dimensions of reducer couplings are designed to ensure a proper fit between pipes of different sizes, allowing for a smooth flow transition without abrupt changes that could lead to turbulence or pressure loss.

Additionally, reducer couplings are available in various materials, such as PVC, CPVC, stainless steel, brass, and copper, to suit the compatibility requirements of different pipe materials and applications.

Before selecting a reducer coupling for a specific application, it is crucial to consider the pipe sizes, material compatibility, pressure and temperature ratings, and the joining method to ensure a proper and secure fit for the plumbing or piping system.

China best Copper Reducer Coupling for Medical Gas  China best Copper Reducer Coupling for Medical Gas
editor by CX 2023-09-01

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