CuNi 70/30 Copper Nickel Reducing Tee Socket Weld Forged Fittings ASME B16.5

Product Specification

CuNi 70/30 Copper Nickel Reducing Tee Socket Weld Forged Fittings ASME B16.5 Class150 Marine Grade

1. Product Description

The Copper Nickel Reducing Tee is a specialized pipe fitting manufactured from CuNi alloys (90/10 and 70/30 grades), designed to connect a larger-diameter main pipeline to two smaller-diameter branch lines in a single compact unit. Its "reducing" geometry means the branch outlets are deliberately sized smaller than the run pipe, eliminating the need for separate reducers at branch points.

Design highlights:

Integral forged/formed construction – no welded seams within the body, ensuring structural integrity.

Precise dimensional control – branch-to-run diameter ratios are customizable per customer requirements (standard ratios: 1/2, 2/3, 3/4, etc.).

End finishing – beveled ends per ASME B16.25 for BW types; square-cut with chamfer for SW types; NPT threads for threaded types.

Surface finish – pickled and passivated to remove surface oxides and enhance corrosion resistance.

2.Product Applications

This fitting is engineered for mission-critical piping systems where reliability under corrosive and high-flow conditions is non-negotiable:

• Shipboard seawater systems – main engine cooling, auxiliary cooling, fire main, deck wash, and sanitary seawater supplies.

• Offshore oil & gas platforms – topside seawater lift pumps, firewater ring mains, and process cooling loops.

• Coastal desalination plants – reverse osmosis (RO) feed lines, concentrate discharge headers, and post-treatment transfer piping.

• Thermal & nuclear power stations – circulating water systems (CWS) and component cooling water (CCW) circuits.

• Marine equipment manufacturing – heat exchangers, condensers, and evaporator interconnecting pipework.

Suitable media: Clean & raw seawater, brackish water, demineralized water, steam (low pressure), compressed air, hydraulic fluids, and light hydrocarbon oils.

3. Product Advantages 

Compared to ordinary stainless steel (316L) or carbon steel fittings:

• Longer total life-cycle cost efficiency – despite higher upfront cost, CuNi tees deliver 3–5× longer service life in seawater, reducing replacement frequency and downtime.

• Superior biofouling resistance – natural copper ion release inhibits barnacle, mussel, and algae attachment, eliminating costly chemical dosing and mechanical cleaning.

• Excellent weldability – CuNi alloys have good hot-cracking resistance and can be welded using standard TIG/MIG procedures with proper filler (e.g., ERCuNi).

• Low magnetic permeability – ideal for naval applications requiring non-magnetic materials.

• Proven track record – over 50 years of field service in global naval fleets and offshore installations.

• Full traceability – each fitting comes with mill test reports (MTR) and third-party inspection options (DNV, ABS, Lloyd's, etc.).

4.Product Specifications

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.