Dalton for Autodesk Revit is a pipe network analysis solution which simulates the flow behavior in a distribution network. Because Dalton is a plug-in, you can run a flow simulation on your model without leaving the Revit environment.
After opening your model in Revit, select a distribution system, and then click Dalton 
Dalton to start Dalton.
User Interface Overview
Use the Dalton Browser (A) to browse through the Properties, Equipment (B), Boundary Nodes (C) and Elements of the circuit.
Tip: Click 
(Show me) to zoom on the selected system element. This allows you to better visualize equipment or specific areas in the distribution system.
(Show me) to zoom on the selected system element. This allows you to better visualize equipment or specific areas in the distribution system. When results are available for the distribution system, a legend (D) is displayed which allows you to better understand the simulation results.