A flat flange is a type of flange that has a flat face on both sides. It is the simplest type of flange and is commonly used in low-pressure applications. Flat flanges are typically made of steel, stainless steel, or cast iron. The technical specifications of a flat flange will vary depending on the material, size, and pressure class. However, some common specifications include: Nominal pipe size (NPS): 1/2 INCH - 24 INCH Flange pressure class: 150 - 2500 Material: Cast Iron, Steel and Stainless Steel Thickness: 1/4 INCH - 1 INCH Face type: RF, FF, RJT
