Home > Duplex Steel > Duplex Needle Valve
Aisha Nickel Alloys is a leading manufacturer and supplier of duplex needle valves in Muscat, OMAN. 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 Aisha Nickel Alloys for premium duplex needle valves that offer precise control and strong durability to suit your specific needs.
A Duplex Needle Valve is a finely crafted valve that expertly manages the flow of liquids or gases with remarkable precision, especially in tough and corrosive settings. Constructed from duplex stainless steel, which offers a fantastic blend of strength and resistance to corrosion, these valves are perfect for situations that demand careful flow adjustments and dependable shutoff. With their smooth operation, precise control, and impressive durability, Duplex Needle Valves are a go-to choice for critical sectors like oil and gas, petrochemical, chemical processing, and marine 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. |
On the mechanical side, Duplex Needle Valves boast high tensile and yield strength, along with toughness and resistance to stress corrosion cracking. The duplex stainless steel design guarantees they can withstand high pressure, temperature fluctuations, and exposure to harsh chemicals or seawater. Even in the most challenging environments, these valves maintain their operational integrity, dimensional stability, and precise flow regulation.
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You’ll find Duplex Needle Valves commonly used in instrumentation systems, chemical dosing, offshore platforms, pipelines, and industrial process controls. Their unique combination of outstanding corrosion resistance, mechanical strength, and precise flow control makes them ideal for applications where safety, accuracy, and long-lasting reliability are crucial.
