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Precautions For The Stainless Steel Water Pump
TIME：2024-06-03 Author：admin Views：
Precautions for the stainless steel water pump：
● The pump should be placed in a solid location, the installation should be firm, smooth, and should have rain facilities. Multi-stage pumps should be firm and reliable high-pressure hose fittings, placement should be straight, the turn should be fixed firmly. Several pumps installed in parallel, the head should be the same, there should be a distance of 0.8 ~ 1.0m between each; tandem installation, there should be the same flow rate.
● When the water pump is on the winter operation, should do a good job of pipeline, pump room freezing, insulation work, prevent pump body and pipe from breaking.
● Before starting the check items should meet the following requirements:
1. Motor and pump connection concentric, coupling bolts tight, coupling the rotating part of the protective device, no obstacles around the pump;
2. Pipeline bracket is firm, sealing is reliable, the pump body, pump shaft, packing and gland is tight, the suction pipe bottom valve is not clogged or leaking;
3. Keep the exhaust valve open, inlet and outlet pipe joints are tight and no leakage, between the pump shaft and the pump body No water leakage.
● When starting up, sufficient priming water should be added and the water outlet valve should be closed; when the pump reaches the rated speed, rotate the valves of the vacuum gauge and the pressure gauge, and wait until the pointer position is normal before gradually opening the water outlet valve.
● The following conditions are found during operation and should be stopped immediately for maintenance：
1. There appear abnormal vibration, instability
2. The current of the pump is too large to cause motor overload or over-temperature
3. There is a lack of flow or no water in the pump
● When lifting the suction pipe, it should be operated on a platform with guardrail.
● When the pump is running, it is strictly prohibited for people to cross from the machine.
● When the pump stops working, you should first turn off the pressure gauge, and then turn off the water valve, and then cut off the power supply. When used in winter, the various drain valves should be opened, drain the pump and water pipes in the water. The pump will be set up around a strong protective fence. The pump should be upright in the water, the water depth shall not be less than 0.5m, shall not be used in the water containing mud and sand.
● Submersible pumps into the water or out of the water, you should cut off the power supply, it is strictly prohibited to pull the cable or outlet pipe.
● Submersible pumps should be equipped with zero protection or leakage protection device, when working around the pump within 30m of the water, no one, no animals into the water.
● After the power is turned on, it should be test run first, and should check and confirm the correct direction of rotation, and the running time outside the water should not be more than 50min.
● should always observe the water level changes, impeller center to the horizontal distance should be between 0.5 ~ 3.0m, the pump body shall not fall into the sludge or exposed to the water. The cable shall not rub with the wall of the well, pool wall.
● New pump or new seal, after using 50h, should open the water seal plug, check the water, oil leakage.
● After repairing the oil-immersed submersible pump, it should be tested by 0.2MPa air pressure first, checking that there is no leakage in each part, and then add lubricating oil into the upper and lower casing.
● When the temperature drops below 0℃, after stopping the operation, the submersible pump should be dried from the water and stored indoor.
● The absolute taut resistance of the motor stator winding should be measured once a week, and its value should not decrease.
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