Marine Grade Cupro Nickel Equal Tee C71500 Seamless Butt Weld Fitting 2"-12"

1. Product Description

The Copper Nickel Equal Tee is a fitting used for equal-diameter perpendicular branch connections in piping systems, with all three ports having identical inside diameters. Manufactured from copper-nickel alloy (Cu-Ni 90/10 or 70/30) by integral forging or seamless tube hydroforming. Conforming to ASTM B466, ASME B16.9, and EN 10253-2, it offers excellent resistance to seawater corrosion, cavitation, and biofouling, widely used in shipbuilding, offshore engineering, power generation, and chemical industries.

2. Product Applications

• Ocean-going vessels:Main/auxiliary engine seawater cooling systems, ballast water treatment inlet/outlet, fire water branch lines, sea chest piping

• Offshore drilling platforms:Seawater lift manifolds, platform cooling water distribution, subsea BOP control lines

• Desalination:Low-temperature multi-effect distillation brine circulation, RO feed branch lines, product water transmission

• Power industry:Nuclear plant containment spray systems, thermal plant open-cycle circulating cooling, gas turbine inlet air cooling

• Chemical & petrochemical:Chlor-alkali plant cooled brine, PTA plant bromine-containing wastewater lines, refinery water injection lines

• Marine engineering:Subsea manifold end connections, marine farm water supply systems, beach resort water networks

3.Installation & Precautions

• Receiving inspection:Check for dents or cracks on surface; verify material stamping and dimensions.

• Cleaning requirements:Remove oil, moisture, and dust from bevel and adjacent areas using or alcohol before welding.

• Welding process:Recommended GTAW + SMAW combination. Use ERCuNi wire and ECuNi electrodes. Interpass temperature ≤150℃.

• Post-weld inspection:100% visual inspection of welds; PT or RT for critical areas per design.

• Pipe supports:Place rubber or plastic pads between supports and fittings to avoid direct metal contact.

• Pressure test:Hydrotest pressure = 1.5× design pressure; test medium chloride content ≤50 ppm.

• Prohibitions:

  • Do not directly contact active metals such as zinc or aluminum.

  • Do not use for strong oxidizing acids or ammonia water.

  • Avoid long-term stagnant seawater in pipes; drain and flush with fresh water when out of service.

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4. Key Technical Parameters

FAQ
1. Are you trading company or manufacturer ? We are manufacturer ,You can see the certification.

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.

3. Do you provide samples ? is it free or extra ? Yes, we could offer the sample for free charge but need pay the cost of freight.

4. What is your terms of payment ? Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.