CuNi 70/30 Socket Weld Flange Class 150 ASME B16.5 Forged Marine Grade

CuNi 70/30 Socket Weld Flange Class 150 ASME B16.5 Forged Marine Grade

1. Product Description

Copper Nickel Slip-On Flange is a copper-nickel alloy flange that is connected by inserting the pipe into the flange bore and then fillet welding. Its structure is simple and cost-effective, suitable for medium and low pressure piping systems. Common materials are B10 (90/10 CuNi, UNS C70600) and B30 (70/30 CuNi, UNS C71500). The bore of the slip-on flange is slightly larger than the pipe outer diameter, allowing easy insertion and positioning of the pipe. During welding, only fillet welds are required on the back and end of the flange, making installation convenient and alignment easy. This product is widely used in seawater, brackish water, and corrosive media pipelines. It can be manufactured according to ASME, DIN, EN, BS, EEMUA, and other standards. Face finishes include Raised Face and Flat Face.

2. Product Applications

Copper Nickel Slip-On Flanges are mainly used in the following fields:

• Shipbuilding and Offshore Engineering: Seawater cooling pipelines, ballast water systems, fire water systems, bilge water systems, and general ship piping;

• Power and Energy: Cooling water systems, condenser piping, and seawater transportation pipelines in coastal power plants;

• Seawater Desalination: Medium and low pressure piping connections in multi-stage flash and reverse osmosis desalination plants;

• Petrochemical: Chemical processing equipment, heat exchangers, condensers, and corrosive media pipelines;

• Other Industries: Pharmaceutical, food, metallurgy, construction, and other piping systems requiring corrosion resistance.

3. Product Advantages

1. Easy Installation: The pipe can be inserted into the flange bore for positioning, making alignment easy and welding simple.

2. Lower Cost: Compared with weld neck flanges, slip-on flanges have a simpler manufacturing process and are more economical.

3. Excellent Corrosion Resistance: Outstanding corrosion resistance in seawater, brackish water, and chloride media.

4. Anti-Biofouling: Copper ions inhibit marine organism adhesion, reducing pipeline blockage and maintenance costs.

5. Good Weldability: Copper-nickel alloy has excellent weldability and is suitable for various welding methods.

6. Easy Replacement: Convenient for disassembly and replacement in piping systems, suitable for occasions requiring frequent maintenance.

7. Good Material Compatibility: Avoids galvanic corrosion when connected to copper-nickel pipes and copper alloy equipment.

4. Product Functions

1. Connection: Connects pipes to valves, equipment, and fittings.

2. Sealing: Works with gaskets and bolts to achieve reliable sealing and prevent media leakage.

3. Positioning: Provides insertion positioning for the pipe, ensuring concentricity between the pipe and flange.

4. Pressure Containment: Suitable for medium and low pressure conditions, withstanding certain pressure and temperature fluctuations.

5. Structural Support: Provides local support and connection rigidity for piping systems.

6. Corrosion Prevention: Matches copper-nickel pipes to avoid dissimilar metal contact corrosion.

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5. Key Technical Parameters​

FAQ

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2.How long is your delivery time? Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.

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