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Sayam Nickel Alloys is a trusted manufacturer and supplier of Duplex Steel Manifold Valves in Hyderabad, providing high-performance flow-control solutions for demanding industrial applications. Manufactured using premium-grade duplex steel and precision engineering, these valves deliver excellent strength, corrosion resistance, and durability. Sayam Nickel Alloys adheres to strict quality control standards and international specifications to ensure consistent performance. Their duplex steel manifold valves are widely used in critical piping systems where accurate flow regulation, backflow prevention, and long-term reliability are essential.
Duplex manifold valves offer outstanding corrosion resistance, particularly in chloride-rich environments, thanks to their unique dual-phase microstructure. They provide high strength, excellent fatigue resistance, and superior toughness, making them suitable for extreme pressure and temperature conditions. These valves are also known for their exceptional resistance to stress corrosion cracking and pitting. With a long service life and reliable performance, Duplex manifold valves are ideal for demanding industrial applications, including oil and gas, chemical processing, and marine 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. |
Duplex Steel Manifold Valves are manufactured from alloys with a balanced austenitic and ferritic microstructure. The composition typically includes chromium, nickel, molybdenum, and nitrogen, providing high corrosion resistance and mechanical strength. High chromium and molybdenum content enhance resistance to pitting, crevice corrosion, and stress corrosion cracking. Mechanically, these valves offer high tensile and yield strength, excellent toughness, and good fatigue resistance, enabling reliable performance under high pressure, temperature fluctuations, and harsh chemical environments.
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Duplex Steel Manifold Valves are widely used in oil and gas installations, petrochemical plants, chemical processing units, and power generation systems. They are also employed in offshore platforms, marine systems, and desalination plants. These valves are ideal for regulating flow, preventing backflow, and ensuring operational safety in high-pressure piping networks. Due to their exceptional resistance to corrosive media and chlorides, duplex steel manifold valves are suitable for aggressive environments requiring long-term reliability, leak-proof operation, and durable performance in critical industrial applications.
