Abstract: This invention is directed to a novel multi-piece flange connector used for connecting a pump housing to a fluid conduit. The pump flange is comprised of a flange blank, an insert plate, and a seal. The flange blank is adapted to be connected to the housing of a pump and includes a central bore adapted to allow the passage of fluid. The flange blank also includes a recess surrounding the bore that is adapted to accept the insert plate and the seal. The flange blank is connected to the pump housing by the use of bolts or other fasteners that pass through apertures in the flange blank beneath the insert plate. The insert plate includes a seal member that prevents fluid from the central bore from leaking outside of the flange.