Find ANSI standard flange size charts on sites such as EngineeringToolbox.com, CoastalFlange.com, WarrenElectricCorp.com and RJSales.com. These charts cover information about flanges such as different pipe sizes, bolt diameters and the number of bolts per flange.
A flange is a metallic ring or ridge added to a pipe or beam to increase its support, with different pipe sizes requiring different flanges to account for the proper amount of support. The ANSI standardized size charts allow plumbers or construction workers to choose the right flanges for a specific job. Charts on sites such as CoastalFlange.com and WarrenElectricCorp.com contain the standard pipe sizes and the diameters of their appropriate flanges.