Copper Nickel Socket Weld Flange

Copper Nickel Socket Weld Flange is a flange that complies with ASME B16.5 standard and is made of copper nickel alloy, grade C70600 (CuNi 90/10) or C71500 (CuNi 70/30). It has high oxidation resistance and excellent corrosion resistance. The Copper Nickel Socket Weld Flange is the best flange on the market for seawater, mining, shipbuilding, oil and gas industry, heating systems, power plants and general applications.

CuNi socket weld neck flange have the following characteristics:

• Shoulder or counterbore making it a perfect choice for high stress and pressure applications
• It allows for easy alignment of piping system
• Resistant to corrosion, erosion, stress, and biofouling
• Weld material does not penetrate to the bore of the copper nickel pipe

CuNi socket weld flange (SW flange), resemble Cupronickel slip on flange, but with the following unique features:

• Flange bore has a shoulder like section, also called recessed area or counterbore
• Recessed area determines how deep you can insert the CuNi pipes in the copper nickel socket weld flange
• It implies the Cupronickel weld neck flange has two holes – counterbore whose diameter is slightly larger than the outer diameter of the pipe. Therefore, you can insert the pipe like in the case of the slip on flange.
• The second hole (smaller size) has a diameter equal to the internal diameter of the pipe. Implying, the pipe will rest on the shoulder like section.

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