How to determine the elevation of pump shaft?
The disadvantage of this method is the valve head loss is bigger, affect the efficiency of the pump device; the other is not the end of valve with water, the greatest advantage of this method is energy saving, phase agricultural centrifugal pump for bottom valve of the pumping station can save 10% ~ 15%.
Centrifugal pumps are not used in the cause of water, in general, because the air in the pump has not been discharged, the water has not been covered by. In use, you may also know that before use, usually to pump and inlet pipe filled with water. What is so full of water? There are two ways to flush in daily use, one is by the end of valve assembly with water valve, check valve, installed in the inlet of the water inlet pipe
Measuring elevation:Water pump elevation refers to the elevation of the centerline of the pump shaft. The purpose of measuring elevation is to check the actual installation height of pump and whether the design and installation elevation is consistent, so as to ensure that the pump works within the allowable height of suction. The method of measuring elevation uses two benchmarks, one is on the predetermined base plane, the other is on the base plane of the central axis of the pump shaft, and is calibrated with a level meter, and the actual installation elevation is calculated after calculation. The above finding and finding the equal working procedure are often interactive, so it needs to be adjusted several times until the requirement is met. After the pump location is accurate, the fasteners are locked to complete the installation of the pump body.
