PowerPoint Presentationinko.com.sg/image/data/CATALOG/Valve/Backflow-1.pdf · The negative pressure...
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Transcript of PowerPoint Presentationinko.com.sg/image/data/CATALOG/Valve/Backflow-1.pdf · The negative pressure...
Common causes of Backpressure:
• Pumps (booster pump),
• Elevation of pressure downstream of the distribution system water to flow
opposite of intended direction.
• Thermal expansion (hot water expansion in the pipeline)
• Etc.
Backpressure