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Hakan Nickel Alloys, based in Istanbul, Turkey, is a reliable manufacturer and supplier of high-performance Duplex Needle Valves, crafted for precise flow control in tough industrial settings. These valves excel in systems that need accurate pressure and flow regulation, even under extreme conditions. Hakan Nickel Alloys ensures that their Duplex Needle Valves meet international quality standards, guaranteeing dependable operation, tight shut-off, and outstanding corrosion resistance. These valves find their place in sectors like oil and gas, marine, chemical, and power generation, providing a robust and efficient solution for critical process control needs.
Typically made from Duplex 2205 stainless steel, Duplex Needle Valves consist of 22% chromium, 5–6% nickel, 3% molybdenum, and nitrogen. This well-balanced austenite-ferrite structure delivers impressive tensile strength (620–880 MPa), excellent yield strength, and remarkable resistance to stress corrosion cracking. They also offer strong protection against pitting, crevice corrosion, and fatigue in chloride-rich environments. With their thermal stability and non-magnetic properties, these valves ensure safe operation even under high pressure and temperature fluctuations. Duplex Needle Valves maintain precision and sealing integrity over time, making them ideal for long-term use in highly corrosive and high-stress systems.
| 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 |
| ELEMENT | DUPLEX 31803 | DUPLEX 2205 |
|---|---|---|
| NI | 4.50 – 6.50 | 4.50 – 6.50 |
| C | 0.030 max | 0.030 max |
| N | 0.14 – 0.20 | 0.08 – 0.20 |
| P | 0.030 max | 0.030 max |
| MN | 2.00 max | 2.00 max |
| CR | 22.0 – 23.0 | 21.0 – 23.0 |
| S | 0.020 max | 0.20 max |
| MO | 3.0 – 3.5 | 2.50 – 3.50 |
| SI | 1.00 max | 1.00 max |
| FE | 63.72 min | 63.54 min |
| Grade | % Elongation | YS (MPa) | Hardness(BHN) | UTS (MPa) |
| 31803 | 25 min. | 450 min. | 293 max. | 620 min. |
| 2205 | 25 min. | 450 min. | 293 max. | 655 min. |
At Hakan Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Needle 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 Needle Valves are essential in applications where accurate, leak-free flow control is crucial, such as in oil and gas processing, offshore platforms, petrochemical plants, and desalination facilities. They effectively manage pressure in instrumentation lines, sampling systems, and pipelines carrying corrosive fluids. In marine settings, they handle seawater with ease, ensuring reliable performance in challenging conditions.
