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Al Vishwas Nickel Alloys is a highly regarded manufacturer and supplier based in Dubai, UAE, specializing in premium Duplex Manifold Valves designed for demanding industrial applications. Renowned for precision engineering, advanced manufacturing methods, and stringent quality inspections, the company ensures that every valve meets international standards for performance and durability. Their Duplex Manifold Valves stand out for exceptional corrosion resistance, mechanical strength, and reliability, making them ideal for high-pressure and corrosive environments. Dedicated to customer satisfaction, innovation, and enduring dependability, Al Vishwas Nickel Alloys reliably supplies industries with durable, cost-efficient solutions for essential fluid-control requirements.
Duplex Manifold Valves are constructed from duplex stainless steel, which contains roughly 22–25% chromium, 5–7% nickel, 3–4% molybdenum, and regulated nitrogen, producing a dual-phase ferritic-austenitic microstructure. This carefully balanced composition delivers outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking, especially in chloride-heavy environments. From a mechanical standpoint, duplex steel features high tensile and yield strength, robust fatigue resistance, and remarkable impact toughness. These valves preserve their structural integrity even when subjected to high pressure, changing temperatures, and aggressive media, guaranteeing dependable, durable performance in challenging industrial settings.
| 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 Al Vishwas Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Needle Valve in Dubai, UAE, we deliver innovative solutions for every piping requirement you may have. Our advanced manufacturing facilities are strategically positioned in the UAE, enabling us to keep an extensive stock of more than 16,000 tons of top-grade materials on hand at all times. We are committed to providing outstanding products and services, guaranteeing dependability and excellence for our clients around the world.
Reach out to us for a fast quote tailored to your needs.
Duplex Manifold Valves are widely applied in industries that require accurate flow control, high strength, and outstanding corrosion resistance. Within the oil and gas sector, they serve offshore platforms, subsea systems, and high-pressure instrumentation lines exposed to severe conditions. Chemical and petrochemical facilities rely on them for process control across reactors, pipelines, and corrosive fluid systems. They are likewise indispensable in numerous applications where dependability and durability are critical.
