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Engineering ToolBox > Water-distribution Pipe
A water-distribution pipe is located inside a building and delivers potable water to the fixtures. The supply system delivering water from the potable source to the building is the "water-service" pipe.
The water distribution system includes normally both hot and cold water. The temperature range limits the materials allowed.
It the the water-service to the building exceeds the rated water-distribution pressure, a pressure-reducing valve must be installed.
Commonly used and approved materials in water-distribution pipe lines are