Ayten Tube Fittings, located in Addis Ababa, Ethiopia, has built a solid reputation as a reliable manufacturer and supplier of top-notch Hastelloy B2 Needle Valves. This company is celebrated for its precision-engineered products that deliver outstanding corrosion resistance and durability. Ayten Tube Fittings takes pride in ensuring that each valve adheres to international standards, offering dependable solutions for various industries, including chemical processing, petrochemical, marine, and power generation. Their Hastelloy B2 Needle Valves are specifically designed to thrive in aggressive and reducing environments, providing accurate flow control, longevity, and efficiency even in the toughest industrial settings.
These valves are primarily made from nickel and molybdenum, which gives them remarkable resistance to hydrochloric acid and other potent reducing agents. Typically, the composition consists of around 70% nickel, 28% molybdenum, along with trace amounts of iron, cobalt, and chromium. They boast impressive mechanical properties, featuring a tensile strength of about 760 MPa and a yield strength of roughly 350 MPa. Even under high temperatures, they maintain excellent ductility, toughness, and structural integrity, ensuring reliable performance in corrosive and high-stress environments.
| 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 find extensive use in industries where high corrosion resistance and precise flow control are paramount. They are particularly well-suited for chemical processing plants, especially those dealing with hydrochloric, sulfuric, and phosphoric acids. Additionally, these valves are employed in the pharmaceutical, petrochemical, and pollution control sectors for managing aggressive fluids and gases. Their exceptional resistance to pitting, stress corrosion cracking, and hydrogen chloride makes them ideal for harsh conditions. Furthermore, they are utilized in marine and power generation applications, where reliability, precision, and durability are crucial for maintaining system efficiency and safety.
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