Products

The Carbon Steel Plate Type Flanges produced by Longan have passed the 48-hour salt spray test and 200% pressure redundancy verification. We can provide SGS material reports and finite element stress analysis, which can reduce installation costs by 40%. It can fully meet everyone's purchasing needs!

Customized Welding Flanges have a +40% pressure bearing capacity compared to ordinary flanges, and Longan's products have passed ASME and ISO certification, and the quality is very reliable! "DN600-DN3000 large welded flanges, measured leakage rate ≤0.001%, SGS material report and customized thickness +30% anti-deformation can be provided, come and get a free practical solution"

The Large Diameter Welding Flanges produced by Longan have a wide range of applications and many advantages: first, the anti-corrosion performance is quantified, which is more than 15 years longer than ordinary flanges. Second, the super-sized stable processing doubles the pressure bearing capacity | Leakage rate ≤0.001%. Finally, we have a lot of experience in customized product design, so come and contact us!

When standard flanges cannot meet the unique needs of your project, Longan's Non-standard Large Diameter Welding Flanges are the core components of high-strength connections that break through engineering boundaries and are customized for extreme working conditions. Our service not only produces flanges, but also provides customized solutions for your corrosive, high-pressure, high-temperature, and special geometric challenges.

At present, most suppliers focus on material strength and pressure bearing capacity for Q235 Blind Flange Flange Cover, but the products we produce are more concerned about "total cost" and "zero risk". It can reduce the loss of downtime caused by purchasing managers, reduce the hidden cost of materials and multi-compatible project engineering.

Stainless Steel 316 thread Flanges are specially produced by Longan for use in harsh environments. These flanges are ideal for chemical processing, marine systems and high-purity applications. They outperform standard 304 grade flanges and are 2-3 times more tolerant to chlorides. They are easy to install without welding, have super corrosion resistance, and are cost-effective in the long term. Longan Flanges is exploring the performance of data-based leak-proof pipe solutions, and we hope everyone will discuss with us!