Cougar USA Blog

Design Considerations for Pressure Boosting Systems in Commercial Buildings

Oct 4, 2018 12:41:00 PM / by Tim Zacharias posted in Energy Savings, Pressure, Design

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More than 60 years ago, the Late Dr. Roy B. Hunter developed a system for calculating water loads in commercial buildings. The estimated water demand of fixtures (water closets, sinks, etc.) are given a value called Fixture Units which have an equivalent demand load in Gallons Per Minute (GPM). The Fixture Units and Demand Load relationship is known as Hunter’s Curve and is still the basis for plumbing system design today.

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