Problems with fire protection pressure maintenance pumps operating for long periods of time
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I would like to ask the experts: What should be done if the fire pressure maintenance pump (with variable frequency drive) operates for long periods of time, with no issues in its operation, but the water temperature in the pipelines becomes too high?
If the booster pump runs for a long time, the water temperature will definitely rise. Put a fire water tank on the roof.
Aren’t frequency conversion devices not allowed to be used in fire protection systems? When the pressure stabilizing pump runs for a long time and the diaphragm air tank is not damaged, it is usually the check valve of the pump unit that is faulty and cannot stop the flow of water