For Smooth Pig Transition
Piggable Elbows are specially fabricated to provide smooth pig passage with minimal increase in pressure requirements. Piggable elbows can be provided for any pipe size, schedule, and material construction. The piggable elbows typically have a centerline bend radius of either 3X or 5X the nominal pipe diameter. Elbows are specially fabricated to meet stringent ovality tolerances. They have weld tangents on each end to prevent pig hang-up and guarantee smooth transition of the pig through the elbow.