Lecong Stainless, located in Da Nang, Vietnam, has built a solid reputation as a manufacturer and supplier of Stainless Steel Weld Neck Flanges. These flanges are known for their strength, durability, and leak-proof design, making them ideal for piping systems. With an extended neck that’s welded to the pipe, they provide excellent stress distribution and help minimize turbulence, especially in high-pressure and high-temperature situations. Crafted from top-quality stainless steel, these weld neck flanges are essential in industries where safety and reliability are crucial. Lecong Stainless is committed to precision engineering and follows international standards, which is why their flanges are trusted worldwide.
Typically, Stainless Steel Weld Neck Flanges are made from materials like SS304, SS316, SS316L, and duplex stainless steel. These grades offer outstanding corrosion resistance, durability, and mechanical strength. The flanges are composed of chromium, nickel, and molybdenum, which help them resist pitting, oxidation, and chemical exposure. On a mechanical level, they boast high tensile strength, excellent toughness, and the capability to endure extreme pressure and temperature conditions. The beveled hub design further enhances weld integrity, making them reliable for critical applications in harsh environments.
| 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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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.
These flanges find their place in various industries that demand strong and secure connections. They are commonly used in oil and gas pipelines, petrochemical plants, power generation systems, marine engineering, and chemical processing. In refineries and high-pressure steam lines, they deliver dependable, leak-proof performance even under the toughest conditions. Additionally, they are utilized in water treatment facilities and structural applications where durability is key. Their ability to handle fluctuating temperatures and pressures makes stainless steel weld neck flanges an essential part of modern piping systems.
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