Boiler Feed Pump Failure GC Boiler Feed Pump Causes Boiler Feed Pump Failure Solution 1, the pump is not absorbent, pressure gauge and vacuum gauge pointer violently beating. Injected into the water pump is not enough, plumbing or instrumentation leaks. Continue to pump water, tighten the blockage leak. 2, the pump does not absorb water, the vacuum gauge indicates a high degree of vacuum. At the end of the valve is not open, or has been blocked, suction pipe resistance is too high, water absorption height is too high. Correct or change the end of the valve condition, change the suction pipe, reduce the water absorption height. 3, pressure gauge pressure, however, the pump is still not water. Outlet pipe resistance is too large, the motor rotation direction is not correct, the impeller is blocked, the pump revolution is not enough. Check or shorten the direction of rotation of the water pipe and motor, cleaning the impeller to increase the pump speed. 4, the flow rate is lower than the design requirements of the pump or pipeline blockage, seal ring wear too large, insufficient number of revolutions. Clean the pump and piping, replace the seal ring and increase the pump speed. 5, the pump consumes too much power. Gland packing is too tight, stuffing box fever impeller wear, pump water supply increased. Relax packing gland, change impeller, increase pump resistance to reduce flow. 6, abnormal sound inside the pump, the pump is not on the water. Flow is too large, suction pipe resistance is too large, there is air at the suction into the suction liquid temperature is too high. Increase the outlet pipe resistance to reduce flow, check the pump and water pipes, valve at the end, plug the leak, reduce the suction height. 7, pump vibration. Pump and motor displacement, or bearing bending. Proofing pump and motor shaft centerline, replace the pump shaft. 8, the bearing temperature is too high. Without timely refueling, pumps and motors are not in the same centerline, bearing rust. Refuel, proofing pump and motor centerline, check cleaning bearings
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