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Title: REDUCTION OF APPARENT LOSSES USING UNMEASURED FLOW REDUCER (UFR) – CASE STUDIES

Author: S. Yaniv

Year: 2009

Publisher: European Water Resources Association (EWRA)

Description:

The demand for water is increasing due to population growth and technology development whereas water is becoming a scarce resource. There is an urgent need to find innovative solutions for water loss in water supply systems. Most water meters don’t measure low flow rates (less than 12 liters per hour). The Unmeasured Flow Reducer (UFR) main objective is to reduce the apparent losses by changing the flow regime through the water meter at low flow rates. This reduces the volume of unmeasured water at low flow rates and enables the measurement of leaks by a domestic water meter. This paper shall review water meter accuracy curve error, reduction of apparent losses using the UFR - function and case studies conducted around the world.