PRD provides manually operated gap control in order to overcome the camber condition inherent in coil steel. Pipe diameter is affected, as the apex at the 6 o'clock weld position opens and closes. It is necessary to control this angle, in order to produce high quality pipe. Gap control is made possible through minor angular changes in the pipe out-feed, made during the diameter forming and welding operation. The entire pipe out-feed system, including guide stands, O.D. welder, cut-off and pipe supports are integrally mounted on a common base that is hydraulically positioned to provide both increased and decreased out-feed angle. The operator makes weld gap changes based upon his visual observation of the seam during welding.