Jassem Tube Fittings, a leading manufacturer and supplier in Doha, Qatar, provides high-performance Hastelloy B2 Needle Valves engineered for precise flow control in highly corrosive environments. Designed with accuracy and reliability in mind, these valves allow fine regulation of liquids and gases while ensuring tight shut-off and leak-free operation. Jassem Tube Fittings focuses on superior material selection, precision machining, and rigorous quality testing to meet international standards. Hastelloy B2 Needle Valves are trusted for their durability, smooth operation, and long service life in critical process applications.
Hastelloy B2 Needle Valves are manufactured from a nickel-molybdenum alloy with low iron and minimal chromium content. This composition offers exceptional resistance to hydrochloric acid and other reducing chemical environments. Mechanically, the alloy provides good tensile and yield strength, excellent toughness, and resistance to stress corrosion cracking. It maintains strength and dimensional stability under pressure and temperature variations, ensuring accurate flow control, reliable sealing, and consistent performance in severe service conditions.
| VALVE SIZE | 1/8″ TO 2″ / 6 MM TO 50 MM |
| THREAD | NPT, BSPP, BSPT, JIC, METRIC, UNF |
| CONNECTION | THREADED, TUBE END, BUTT WELD, SOCKET WELD, FLANGE END |
| FLOW PATTERN | STRAIGHT, ANGLE, CROSS PATTERNS |
| FUNCTION | 2 WAY, 3 WAY |
| BODY SHAPE | SQUARE, ROUND, HEXAGON |
| PRESSURE RATING | 1500 PSI, 3000 PSI, 6000 PSI, 10000 PSI, 15,000 PSI, 20000 PSI |
| ORIFICE SIZE | 2 MM TO 9.5 MM |
| MEDIA | HYDRAULIC OIL, AIR, WATER, GAS, STEAM, HOT WATER , COLD WATER , SEA WATER , CHEMICAL |
| MEDIA TEMPERATURE | (-120* C TO 500*C ) RANGE AS PER PRESSURE |
| BODY TYPE | BAR STOCK, FORGED |
| HANDLE | BAR T-HANDLE,KNOB HANDLE, WHEEL HANDLE |
| PACKING DETAILS | BOX PACKING, WOODEN PALLET |
| EQUIVALENT BRANDS | SWAGELOK, PARKER, DK-LOK, HAMLET, OLIVER VALVES, HOKE |
| MATERIAL | HASTELLOY B2 |
| Hastelloy B2 | Ni | C | Mo | Mn | Si | Fe | P | S | Co | Cr |
| Balance | 0.02 max | 26.0-30.0 | 1.0 max | 0.10 max | 2.0 max | 0.040 max | 0.030 max | 1.0 max | 1.0 max |
| Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 9.2 g/cm3 | 1370 °C (2500 °F) | Psi – 51,000, MPa – 350 | Psi -1,10,000, MPa -760 | 40 % |
| STANDARD | UNS | WERKSTOFF NR. |
| Hastelloy B2 | N10665 | 2.4617 |
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Hastelloy B2 Needle Valves are widely used in chemical processing plants, acid handling systems, and petrochemical industries where aggressive and reducing media are present. They are also suitable for pharmaceutical manufacturing, pollution control equipment, and specialty chemical production. These valves are ideal for applications requiring precise flow regulation, pressure control, and safe isolation. Their corrosion resistance and reliability help reduce maintenance needs and ensure safe, efficient operation in demanding industrial environments.
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