Njabulo Stainless, located in Cape Town, South Africa, stands out as a top-notch manufacturer and supplier of premium stainless steel products, with a particular focus on Stainless Steel Weld Neck Flanges. Known for their precision engineering and durability, Njabulo Stainless serves a variety of industries, including petrochemical, construction, and power generation. Their weld neck flanges are crafted to deliver outstanding performance even in high-pressure and high-temperature situations, ensuring leak-proof connections and lasting reliability. With a strong dedication to exceptional craftsmanship, rigorous quality control, and prompt delivery, Njabulo Stainless has built a reputation as a reliable partner for businesses in need of sturdy and efficient stainless steel flange solutions.
When it comes to Stainless Steel Weld Neck Flanges, they are usually made from materials like 304, 304L, 316, and 316L, which blend chromium, nickel, and sometimes molybdenum to boost corrosion resistance. These flanges boast impressive mechanical properties, including high tensile and yield strength, toughness, and resistance to oxidation and chemical damage. Their seamless design minimizes stress concentration while ensuring dimensional stability under extreme pressure and temperature. Plus, the weld neck design promotes smooth flow characteristics, reducing turbulence and erosion, making them perfect for critical piping applications in tough industrial settings.
| Size | 1/2″ (15 NB) to 48″ (1200NB) |
| Standards | ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings. |
| Pressure Ratings | PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Pressure class | 150#, 300#, 600#, 1500# |
| Dimensions and Pressure Ratings for Blind Flanges | MSS- SP-44, BS3293, ANSI, Table D, E, F, & H, BS4504, PN6, 10, 16, 25, 64 BS10, DIN Standards |
| Flange Face Type Manufacturer | Raised Face (RF), Flate Face (FF), Ring Type Joint (RTJ) |
| Coating/Surface Treatment | Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized. |
| Test | Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector |
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| Manufacturer of | ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc. Blind Flange: -BS, EN, API 6A, ANSI, ASME, DIN, EN1092-1, UNI, JIS/ KS , BS4504, GB, AWWA C207, GOST, PSI
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SS Weld Neck Flanges are stainless steel flanges designed for welding to pipes, providing strong, reliable joints with excellent strength and resistance to pressure and temperature changes in various applications.
MSS-SP-44 Weld Neck Flange is a standard specification for carbon steel flanges, ensuring durability and high pressure handling. It features a long neck for improved stress distribution and welding integrity.
PN16 Weld Neck Flange is a flange type rated for a pressure class of 16 bar, featuring a long neck design for strong welding and optimal stress distribution in piping systems.
A Raised Face Weld Neck Flange features a protruding face that enhances sealing by increasing the contact area with the gasket. It provides a strong, reliable joint in high-pressure applications.
Forged Steel Weld Neck Flange is made from high-strength forged steel, providing excellent durability and performance under high pressure and temperature. Its design ensures reliable, leak-proof connections in piping systems.
JIS Weld Neck Flange conforms to Japanese Industrial Standards, offering precise dimensions and high quality. It’s designed for strong, reliable welds and optimal performance in various piping and industrial applications.
We are committed to achieving exceptional customer outcomes through the prompt delivery of high-quality Stainless Steel Weld Neck Flanges. Our products comply to rigorous safety and quality standards. Ensuring outstanding performance in all industrial applications. Each flange undergoes thorough testing to confirm its suitability for industrial use. These certifications assure clients that our Stainless Steel Weld Neck Flanges have been meticulously tested for safety and performance, with regular factory inspections and audits conducted after each performance test.
Stainless Steel Weld Neck Flanges find their place in various industries such as oil and gas, chemical processing, shipbuilding, and power generation. They are particularly suited for high-pressure and high-temperature piping systems, providing secure and leak-proof connections. Common uses include linking pipes, valves, pumps, and other equipment, ensuring structural integrity and dependable fluid transport. Their resistance to corrosion and thermal stress makes them ideal for both onshore and offshore projects. Additionally, these flanges are utilized in water treatment facilities, petrochemical plants, and pharmaceutical industries.







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