CuNi 70/30 Copper Nickel Reducing Tee Forged Socket Weld Fitting ASME B16.5 Class150 EEMUA
| Product Name | Reducing Tee Fitting | Package Quantity | Depends |
|---|---|---|---|
| Temperaturerange | -20°C To 400°C (depending On Material) | Finish | Polished |
| Grade | 70600 | Durability | Corrosion Resistant / High Strength |
| Connection | Threaded | Shape | Equal Tee |
| Standardscompliance | ASME B16.9, ASTM A234, ISO 9001 | Mode Of Connection | Welding |
| Endtype | Butt Weld / Threaded / Socket Weld | Installationmethod | Welding / Threading / Socketing |
| Endtypes | Equal / Reducing |
CuNi 70/30 Copper Nickel Reducing Tee Forged Socket Weld Fitting ASME B16.5 Class150 EEMUA
1. Product Description
A copper nickel reducing tee is a T-shaped pressure pipe fitting made of copper-nickel alloy. The main run has equal ends, while the branch outlet is smaller than the main run. It is used for flow division, flow combination, and diameter transition in piping systems. Common grades are 90/10 CuNi and 70/30 CuNi. 90/10 CuNi is widely used in seawater piping. The product can be manufactured to ASME B16.9, DIN 86088, DIN 86089, EEMUA 146, ASTM B466, and other standards. End connections include butt weld, socket weld, threaded, and flanged types.
2. Typical Applications
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Ship seawater cooling systems: for flow division and combination in cooling lines.
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Offshore platform piping: for seawater and process piping connections.
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Fire water systems: for connections between fire mains and branch pipes.
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Ballast water systems: for reducing and branch connections in ballast piping.
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Bilge water systems: for connections and transitions in bilge drainage lines.
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Desalination plants: for pipeline distribution and connections.
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Power plant condensers and heat exchangers: for seawater-side piping systems.
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Petrochemical systems: for piping with high corrosion resistance requirements.
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Shipbuilding and ship repair: for installation, modification, and maintenance of marine piping.
3. Core Advantages
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Excellent seawater corrosion resistance, especially in chloride-containing environments.
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Strong resistance to erosion-corrosion in flowing seawater, suitable for relatively high flow velocities.
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Good weldability, convenient for on-site installation and repair.
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High strength and toughness; iron and manganese help improve overall performance.
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90/10 CuNi offers balanced cost-performance between corrosion resistance and cost.
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Long service life, reducing maintenance and replacement costs.
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Customizable sizes to meet different main run and branch outlet requirements.
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Reliable connection, good sealing performance, and stable dimensions.
4. Main Functions
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Flow division: distributes main line flow to branch pipes.
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Flow combination: merges branch line flow into the main pipe.
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Diameter transition: provides smooth connection between pipes of different diameters.
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Branch connection: provides a reliable T-shaped branch interface.
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Flow distribution: achieves reasonable flow distribution through different branch outlet sizes.
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System connection: used for installation, extension, and modification of piping systems.
5. Key Technical Parameters
| Parameter | 90/10 CuNi | 70/30 CuNi |
| Material Grade | UNS C70600, CuNi10Fe1Mn, DIN 2.0872 | UNS C71500, DIN 2.0882 |
| Chemical Composition | Ni 9.0–11.0%, Fe 1.0–1.8%, Mn 0.5–1.0%, Cu balance | Ni 29.0–33.0%, Fe 0.4–1.0%, Mn ≤1.0%, Cu balance |
| Reference Standards | ASME B16.9, DIN 86088, EEMUA 146, ASTM B466 | ASME B16.9, DIN 86088, EEMUA 146, ASTM B466 |
| Nominal Size | 1/2"–36" (DN15–DN900) | 1/2"–36" (DN15–DN900) |
| Branch Size | Smaller than main run | Smaller than main run |
| Wall Thickness | SCH10–SCH160, STD, XS, XXS | SCH10–SCH160, STD, XS, XXS |
| Pressure Rating | Class 150–Class 3000, including 200 lb, 400 lb | Class 150–Class 3000 |
| Temperature Range | -20°C to 95°C continuous, peak 110°C | -20°C to 95°C continuous, peak 110°C |
| End Connection | Butt weld, socket weld, threaded, flanged | Butt weld, socket weld, threaded, flanged |
| Surface Treatment | Pickling, passivation, anti-tarnish protection | Pickling, passivation, anti-tarnish protection |
| Testing | Spectroscopic analysis, dimensional inspection, NDT | Spectroscopic analysis, dimensional inspection, NDT |
| Applicable Media | Seawater, brine, fresh water, oil | Seawater, brine, fresh water, oil |
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