Home > Duplex Steel > Duplex Needle Valve
Ashraf Nickel Alloys is a leading manufacturer and supplier of duplex needle valves in Riyadh, Saudi Arabia. Our duplex needle valves are engineered to provide exceptional strength, durability and excellent corrosion resistance, making them ideal for demanding industrial applications. These valves are designed for reliable operation in harsh environments, excelling in high-pressure systems and harsh chemical applications. It is widely used in the chemical industry, offshore oil and gas industry, and power plants. We adhere to strict quality standards to ensure that each valve meets stringent industry requirements for performance and longevity. Choose Ashraf Nickel Alloys for premium duplex needle valves that offer precise control and strong durability to suit your specific needs.
Ashraf Nickel Alloys stands out as a reliable manufacturer and supplier of Duplex Steel Needle Valves in Riyadh, Saudi Arabia. They specialize in delivering precision-engineered flow control solutions tailored for critical applications. The unique blend of ferritic and austenitic grades in duplex stainless steel gives it remarkable strength and corrosion resistance, making it perfect for tough environments. These needle valves are expertly crafted to regulate flow accurately in high-pressure and corrosive systems, ensuring they perform leak-proof and reliably over time. Ashraf Nickel Alloys’ Duplex Steel Needle Valves find extensive use in the oil and gas, chemical processing, marine, and desalination industries.
| 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. |
These valves are made up of about 22% chromium, 5–6% nickel, 3% molybdenum, and nitrogen, which together provide exceptional corrosion resistance and impressive mechanical strength. They boast nearly double the yield strength of standard austenitic stainless steels while still offering good ductility and toughness. With their excellent resistance to stress corrosion cracking, pitting, and crevice corrosion, these valves are dependable even in aggressive chloride-rich environments. Their thoughtful design guarantees smooth operation, precise flow control, and durability under high-pressure and high-temperature conditions.
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Duplex Steel Needle Valves are widely utilized in industries that demand precise flow regulation in challenging operating environments. In the oil and gas sector, you’ll find them on offshore platforms, in wellhead systems, and during subsea operations. Chemical processing industries rely on them to manage corrosive fluids in reactors and processing lines. The marine industry uses them in seawater cooling systems, pumps, and shipbuilding applications. They also play a crucial role in desalination plants, power generation, and the paper and pulp industries. These valves are essential for ensuring safety, efficiency, and durability in critical flow control operations.
