Ductile Iron Carrier Pipe is pre-insulated system that is used for underground chilled water and low temperature hot water distribution working on a temperature range from 32° F to 250° F. The Carrier Pipe comes with a size ranging from 3inches to 24inches and can be availed in 18foot or 20foot length. The Carrier Pipe may require a concrete thrust block poured around each change in direction. Ductile Iron Carrier Pipe has field joints that are not insulated.