Threaded flange

A threaded flange uses a threaded connection to the pipe and bolt holes to join a mating flange. This arrangement can provide a flanged connection without directly welding the flange to the pipe, but suitability depends on the actual product specification and piping conditions. Selection must separately define thread size and form, nominal size, class or rating, flange facing, drilling pattern, material, gasket, bolting, and design pressure and temperature. The product name alone does not establish any class, facing, material, thread standard, or compliance.