Stainless steel fittings are precision-engineered components used to connect sections of pipe or tubing, redirect flow, or adapt to different sizes and shapes within a system. They are crucial in controlling flow direction and pressure in fluid systems. Common types include elbows (for angle changes), tees (for branch connections), reducers (for changing pipe diameter), and unions (for easy disconnection). Unlike welded joints, fittings allow for easy modifications or extensions in pipelines. In industries such as pharmaceuticals and food processing, hygienic fittings are used, which have smooth finishes and are easy to clean, preventing contamination. They are also available in threaded, compression, and socket-welded styles to suit specific applications.
| Specification | Details |
|---|---|
| Fitting Types | Elbow (90°, 45° – Long Radius & Short Radius), Tee (Equal & Reducing), Stub End |
| Connection Types | Butt Weld, Socket Weld, Threaded (NPT/BSP) |
| Size Range | ¼” to 48″ (Butt Weld); ¼” to 4″ (Threaded/Socket Weld) |
| Pressure Ratings | Class 150, 300, 600, 900, 1500, 3000 |
| Material Grades | 301, 302, 303, 304, 304L, 305, 309, 309S, 310, 310S, 314, 316, 316L, 316Ti, 317, 317L, 321, 321H, 347, 347H, 409, 409L, 410, 410S, 416, 420, 430, 434, 436, 440A, 440B, 440C, 444 |
| Standards (Butt Weld) | ASME B16.9, ASTM A403, MSS SP-43 |
| Standards (Threaded) | ASME B1.20.1 (NPT), ISO 7/1 (BSP) |
| Wall Thickness (BW) | SCH 5S, 10S, 40S, 80S, 160, XXS |
| Manufacturing Methods | Forged, Seamless, Welded, Machined |
| Surface Finish | Pickled & Passivated; Polished (for sanitary fittings) |
| Heat Treatment | Solution Annealed, Stress Relieved |
| Testing & Certification | EN 10204 3.1/3.2, PMI Test, Hydrostatic Test, Radiography (as required) |
| Applications | Used extensively in piping systems for oil & gas, petrochemical, pharma, food processing, and water treatment industries |
| Industry | Application |
|---|---|
| Oil & Gas | Piping systems, valves, and connectors for corrosion resistance |
| Pharmaceutical | Cleanroom piping, sterile process connections, and sanitary fittings |
| Food & Beverage | Hygienic piping, dairy and brewery connections, and sanitary valves |
| Chemical Processing | High-pressure and corrosion-resistant fittings for chemical transport |
| Water Treatment | Pipes and fittings for filtration systems and desalination plants |
| Construction | Plumbing systems, railing connections, and structural support elements |
| Marine & Shipbuilding | Saltwater-resistant fittings for fluid systems and deck equipment |
| Automotive | Fuel line connectors, brake systems, and exhaust fittings |
| Power Generation | High-temperature fittings for steam, gas, and cooling systems |
| HVAC | Ducting, refrigerant lines, and high-pressure pipe fittings |
