As the name suggests, Long-Span pipe can extend over distances with fewer supports than conventional Ductile iron pipe. When using Long-Span pipe, distances of 27-foot up to 45-foot and longer can be achieved with support only at the Bell ends. This pipe is manufactured in multiple lengths and utilizes a unique McWane Ductile-designed o-ring rubber gasket joint to minimize the number of piers required in elevated lines. Installation requires support under each bell, with allowance for expansion and contraction.