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Hakan Nickel Alloys, located in Istanbul, Turkey, stands out as a top manufacturer and supplier of high-quality Duplex Steel Check Valves, serving clients in Da Nang, Vietnam. Known for their precision engineering and strict quality standards, the company provides products that guarantee reliability and long-lasting performance in tough industrial settings. With state-of-the-art manufacturing facilities and a strong focus on innovation, Hakan Nickel Alloys meets the needs of various sectors by offering check valves that comply with international standards. Their deep knowledge in metallurgy and valve design ensures that each product is built to last, featuring durability, corrosion resistance, and operational efficiency, making them a go-to partner for industrial solutions.
The Duplex Steel Check Valves produced by Hakan Nickel Alloys typically contain a balanced blend of around 22% chromium, 5–6% nickel, 3% molybdenum, and a touch of nitrogen, resulting in a dual-phase microstructure of austenite and ferrite. This unique composition grants exceptional resistance to pitting, stress corrosion cracking, and general corrosion, even in harsh conditions. On the mechanical side, these valves boast high tensile strength, impressive yield strength, and enhanced toughness, enabling them to endure high pressures and thermal cycling while maintaining their structural integrity and reliable performance across a range of industrial applications.
| Pressure rating | 150#,300#,600#,800#,1500# |
| Standards | API 600/BS1414,ASME B 16.25, ASME B 16.10, ASME B 16.5, API 598/BS EN 12266-1,ASME B 16.34 |
| End Connection | Flanged End,Screwed [NPT],Screwed Taper,Socket Weld, Screwed Parallel |
| Size | 1/8” to 16” |
| Grade | C | Mn | S | Cr | Si | P | Mo | Ni | Fe | N |
| Duplex Steel Check Valve | 0.030 max | 2.00 max | 0.020 max | 22.0–23.0 | 1.00 max | 0.030 max | 3.0–3.5 | 4.50–6.50 | 63.72 min | 0.14–0.20 |
| Grade | Density (g/cm 3) | Melting Point (°F) | Density (lb/in 3) | Melting Point (°C) |
| Duplex Steel Check Valve | 7.805 | 2588 – 2669 | 0.285 | 1420 – 1465 |
At Hakan Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel Check Valve in Istanbul, Turkey, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Turkey, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.
Contact us to get a quick quote for your requirement.
Duplex Steel Check Valves find extensive use in industries like chemical processing, oil and gas, petrochemical, marine, and water treatment. They are perfect for preventing backflow in pipelines, ensuring the safe and efficient movement of liquids and gases. These valves are especially well-suited for environments that encounter chloride or corrosive chemicals, thanks to their strong resistance to pitting and stress corrosion. Their durability and minimal maintenance needs make them ideal for high-pressure systems, power generation plants, and industrial processing units, ensuring reliable, long-term operational safety and efficiency in critical fluid handling.
