How do we select the size of pipe in fire fighting ? and how can we select the expansion tank for chiller plant ?

Watch this ....Fire Fighting Webinar...i think its help full.

https://www.youtube.com/watch?v=5x0Tz-1zSOw&index=1&list=PLgwFrn4WS09Fx2-3l2xD55eLFmyVREVLe&t=1s

The selection is based on location and the materials that are fire her fight against