Stainless Steel Flange – FF (Flat Face) Flange Stainless Steel FF (Flat Face) Flanges are widely used in piping systems where a flat mating surface is required for safe and leak-proof connections. Unlike raised face flanges, FF flanges have a completely flat sealing surface, making them ideal for applications involving cast iron valves, pumps, and low-pressure systems where excessive stress on components must be avoided. Manufactured from high-quality stainless steel grades such as SS 304 and SS 316, these flanges offer excellent resistance to corrosion, rust, and chemical exposure. This makes them suitable for use in industries like water treatment, chemical processing, food and beverage, and HVAC systems. Their smooth flat surface ensures uniform gasket compression, reducing the chances of leakage and improving overall sealing performance. FF flanges are commonly produced in accordance with international standards such as ANSI/ASME B16.5, ensuring dimensional accuracy and compatibility with other piping components. They are available in various sizes, pressure ratings (Class 150, 300, etc.), and finishes to meet diverse industrial requirements.
