UNS C71500 CuNi 70/30 Reducing Tee Socket Welding Pipe Fittings Corrosion-Resistant Offshore Class150

UNS C71500 CuNi 70/30 Reducing Tee Socket Welding Pipe Fittings Corrosion-Resistant Offshore Class150

1. Product Description

The Copper Nickel Reducing Tee is a high‑quality pipe fitting manufactured from CuNi alloys (90/10 and 70/30 grades). It is designed as a single, seamless component that connects a larger‑diameter main pipeline to two smaller‑diameter branch lines, effectively combining flow splitting and size reduction in one unit.

Key design features:

• Integral construction – formed by hot forging or extrusion, with no welded seams in the body for maximum strength and leak protection.

• Precision‑machined ends – beveled ends per ASME B16.25 for butt‑weld types; square ends with chamfer for socket‑weld types; and tapered threads (NPT or BSP) for threaded types.

• Customizable reduction ratios – branch diameters can be specified to meet various system requirements (e.g., 2:1, 3:2, or custom ratios).

• Surface treatment – pickled and passivated to remove surface impurities and enhance natural corrosion resistance in aggressive environments.

2.Product Applications

Primary applications (civil/commercial sectors):

• Commercial shipbuilding – seawater cooling systems, fire mains, ballast water lines, and sanitary piping on cargo vessels, tankers, and passenger ships.

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

• Coastal desalination plants – intake pipelines, brine discharge headers, and product water transfer systems.

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

• General industrial plants – heat exchangers, HVAC systems, chemical processing, and compressor interconnecting piping.

Core advantages over alternative materials (e.g., carbon steel or 316L stainless steel):

• Extended service life – proven 30+ years in seawater with minimal corrosion, reducing total life‑cycle costs by 30‑50%.

• Natural anti‑biofouling – copper ion release inhibits barnacle and algae growth, eliminating expensive chemical cleaning and mechanical scraping.

• Excellent erosion resistance – withstands high‑velocity flow (up to 5 m/s) without surface damage.

• Good weldability – compatible with standard TIG/MIG welding using appropriate filler metals (e.g., ERCuNi).

• 100% recyclable – fully sustainable material, meeting green procurement requirements.

• Full material traceability – each fitting supplied with mill test reports and optional third‑party inspection (e.g., DNV, ABS, Lloyd’s).

3. Delivery, Installation Instructions & After‑Sales Policy

Packaging & shipment:

• Packaging – strong plywood cases or steel‑framed crates with internal cushioning (foam or plastic) to prevent scratches and impacts.

• End protection – plastic caps for threaded ends; rust‑preventive tape for beveled ends.

• Shipping marks – clearly labeled with order number, dimensions, weight, and handling instructions.

• Lead time – standard sizes: 15–30 days; special ratios / large diameters: 30–60 days.

Installation reminders:

• Before welding, clean the pipe ends and fitting surfaces to remove oil, grease, and dirt.

• For wall thickness >20 mm, preheat to 100–150°C to avoid weld cracking.

• Use 100% argon shielding for the root pass; keep interpass temperature below 200°C.

• For threaded connections, apply an anti‑seize compound compatible with CuNi to prevent thread galling.

• Install independent pipe supports within 300 mm of the tee; do not use the fitting as a load‑bearing point.

Warranty & after‑sales support:

• Warranty period – 18 months from delivery or 12 months from commissioning (whichever comes first), covering material and workmanship defects.

• Return/exchange – if any non‑conformity is found within 7 days of receipt, the seller will replace the product at no extra cost (provided it is unused and in original packaging).

• Custom orders – generally non‑returnable unless a manufacturing defect is verified.

• Technical documentation – welding procedure qualification (WPQ), NDT reports, and corrosion data sheets available upon request.

• Customer service – email support within 24 hours; on‑site technical assistance available for large projects (costs negotiable).

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.