Technical assistance: Shutdown of circulating water system
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This post was last edited by hesonchang214 on 2009-12-31 05:27. Why is it necessary to keep one pump running when shutting down a circulating water system? Is it allowed for water to flow in reverse?
When water circulation stops, the suspended particles in the water tend to settle, forming soft scale that can lead to corrosion beneath the scale. This also damages the protective film formed by chemicals. A pump is used to ensure a minimum water flow rate; according to the latest design standards, this rate should be 0.9 m/s. It doesn’t matter whether there is backflow or not, as there is a check valve in front of the pump
Yes! The first is to prevent the deposition of microorganisms in the circulating water, which could damage the passivation layer. For problems related to water flow, the shut-off valve is usually closed, precisely to facilitate restarting the system.