Ductile Iron Pipe (DIP) is made of ductile cast iron which is commonly used for potable water transmission and distribution. It was known as cast iron pipe until which it was superseded. It is commonly used for sewer lines including challenging applications such as deep trenches, shallow cover, seismic activity, subsequent adjacent excavations, beam loading and ring crushing.

Vitrified Clay Pipe (VCP) dispose all waste water in sewage and drainage system. It is normally used for industrial purpose as well as domestic purposes and commonly used in sewer gravity collection. It is the most durable pipe and are able to survive hydraulic pressure just like cast iron pipes. It can also withstand chemicals and toxic sewage wastes.

Unplasticized Polyvinyl Chloride Pipe (UPVC) is used for the majority of plastic pipes as it is incredibly resistant to chemical erosion and has smoother inner walls that helps to encourage water flow. It also function well in different ranges of temperature and operating pressures. It is incredibly strong, stiff and cost-effective.

Reference:

https://www.dipra.org/ductile-iron-pipe-resources/technical-publications/applications?download=15:ductile-iron-pipe-for-wastewater-applications

http://www.plumberrandwick.com.au/pipe-relining/the-advantages-and-disadvantages-of-installing-vitrified-clay-pipes/?doing_wp_cron=1506926907.7268218994140625000000

http://www.diffen.com/difference/PVC_vs_uPVC