Fire pump common fault power consumption

Fire pump power consumption appears excessive situation, after analysis, according to the following measures to be investigated and dealt with: 1) The direction of rotation is not the elimination of measures: Check the fire pump rotation direction 2) Impeller damage elimination measures: Check the pump impeller, as required replace. 3) Seizure of rotating parts Elimination measures: Check the internal wear parts of the fire pump is normal 4) Bending of shaft bending measures: Alignment axis or replacement as required 5) Too high speed Elimination measures: Check the motor winding voltage Or steam pressure delivered to turbine 6) head below rated. Excessive pumping of fluid Elimination measures: advice to the manufacturer, installation of throttling valves and cutting of the impeller 7) Liquid heavier than expected Elimination measures: Check for specific gravity and viscosity 8) Stuffing box incorrectly filled (insufficient packing, incorrect insertion or running The packing is too tight) Elimination measures: Check the packing, refilling the packing box 9) bearing lubrication is not correct or bearing wear Elimination measures: check the pump bearing lubrication and replacement as required 10) wear ring between the running gap Correct elimination measures: check the gap is correct. Replacing the wear ring on the pump housing and / or impeller as required 11) Too much stress on the piping in the pump housing. Remedy: Remove the stress and consult factory. After stress relief, check the alignment of the fire pump.