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Xuan Nickel Alloys is a leading manufacturer and supplier of Super Duplex needle valves in Da Nang, Vietnam. Our Super Duplex needle valves are designed to deliver outstanding strength, durability, and corrosion resistance, making them perfect for demanding industrial applications. Engineered to withstand high pressures and aggressive chemicals, these valves excel in environments such as chemical processing, marine, oil and gas, and power generation industries. We maintain stringent quality standards to ensure each valve meets rigorous industry requirements for reliability and long-term performance. Choose Xuan Nickel Alloys for premium Super Duplex needle valves that offer superior mechanical properties and precise control tailored to your specific needs.
Xuan Nickel Alloys stands out as a top manufacturer and supplier based in Da Nang, Vietnam, specializing in high-quality Super Duplex Needle Valves tailored for demanding industrial applications. These valves are crafted for precision control, durability, and outstanding corrosion resistance, making them perfect for aggressive and high-pressure environments. With a unique dual-phase microstructure of austenite and ferrite, Super Duplex Needle Valves excel in resisting pitting, crevice corrosion, and chloride-induced stress corrosion cracking. At Xuan Nickel Alloys, we pride ourselves on delivering precision-engineered needle valves that adhere to international standards, catering to industries like oil and gas, chemical, petrochemical, marine, desalination, and power generation.
| VALVES SIZE | 6 MM TO 50 MM and 1/8″ TO 2″ |
| STANDARD | ASME B 16.10, BS1414/API 600, ASME B 16.5, BS EN 12266-1/API 598, ASME B 16.34, ASTM A890 4A, ASME B 16.25 |
| CONNECTION | TUBE END, THREADED, SOCKET WELD, BUTT WELD, FLANGED, WELD NIPPLE, SAE |
| THREAD | METRIC, BSPP, NPT, JIC, BSPT, UNF |
| FUNCTION | 2 , 5 , 4 , 3 WAY, |
| MATERIAL OF SEAL RING | PVDF, DELRIN, GRAPHITE, PTFE, PEEK, |
| PRESSURE RATING | 15000 , 3000, 1500 , 10000, 6000 , 20000 PSI |
| TEMPERATURE OF MEDIA | (-120* C – 500*C ) AS LIKE PRESSURE RANGE |
| STANDARD | DIN , ISO , API , ANSI , AWWA , ASME , MSS |
| MEDIA | AIR, CHEMICAL, GAS, WATER, STEAM, HOT WATER , HYDRAULIC OIL, COLD WATER, SEA WATER |
| TYPE OF BODY | BAR STOCK |
| EQUIVALENT BRANDS | OLIVER VALVES, PARKER, SWAGELOK, HAMLET, DK-LOK, HOKE |
| PACKING DETAILS | WOODEN PALLET, BOX PACKING |
| Grade | S32760 | S32750 |
| Mn | 1.00 max | 1.20 max |
| Fe | 57.61 min | 58.095 min |
| C | 0.05 max | 0.030 max |
| Si | 1.00 max | 0.80 max |
| S | 0.010 max | 0.020 max |
| P | 0.030 max | 0.035 max |
| Cr | 24.00 – 26.00 | 24.00 – 26.00 |
| Ni | 6.00 – 8.00 | 6.00 – 8.00 |
| Mo | 3.00 – 4.00 | 3.00 – 5.00 |
| N | 0.20 – 0.30 | 0.24 – 0.32 |
| Melting Point (°C) | 1350 |
| Density (lb/in 3) | 0.281 |
| Density (g/cm 3) | 7.8 |
| Melting Point (°F) | 2460 |
Our Super Duplex Needle Valves are constructed from alloys that include around 25% chromium, nickel, molybdenum, and nitrogen, which grants them impressive mechanical strength and exceptional corrosion resistance. They boast tensile strength between 800–1000 MPa and yield strength that is nearly double that of standard austenitic stainless steels. Remarkably, these valves maintain excellent toughness and ductility, even in sub-zero temperatures. Their advanced composition ensures they resist chloride-induced stress corrosion cracking, localized corrosion, and erosion, making them ideal for precise control of aggressive fluids in high-pressure systems.
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Super Duplex Needle Valves are essential in industries where accurate flow control and reliability under extreme conditions are paramount. They find extensive use in offshore platforms, subsea systems, and marine applications that face saline environments. In oil and gas operations, these valves are crucial for instrumentation lines, process control, and high-pressure piping systems. Chemical and petrochemical plants rely on them for managing corrosive fluids, while desalination facilities utilize them for brine-resistant systems. Additionally, the power generation and pulp and paper industries depend on these valves for long-lasting, reliable performance in critical applications.
