The installation procedure of the horizontal centrifugal pump is shown in the figure. The basic level and elevation should be reviewed before the pump is in place. The centerline and horizontal alignment of the pump are the key to the installation process.
Installation method of centrifugal pump: center line alignment
Centerline alignment is to align the vertical and horizontal centerlines of the pump. First determine the vertical and horizontal center lines on the top surface of the foundation, and then hang vertical lines on the pump inlet and outlet flange surfaces (double-suction centrifugal pump) and the center of the shaft respectively. Adjust the position of the pump so that the vertical line coincides with the vertical and horizontal center lines on the foundation.
Installation method of centrifugal pump: horizontal alignment
Horizontal alignment is to align the vertical and horizontal levels of the pump. Generally, the method of using a level gauge or hanging a vertical line, a single-stage centrifugal pump is measured on the pump shaft and outlet flange.
Double-suction centrifugal pumps are measured on the inlet and outlet flange surfaces of the pump, and the shim is adjusted to center the bubble of the level, or the distance from the flange surface to the vertical line is equal or coincides with the vertical line. For horizontal double-suction centrifugal pumps, you can also choose 4 points that can be connected to form a cross on the horizontal open surface of the pump casing, stand the level ruler on these 4 points, and use the level to read the reading of the level ruler at each point. If the readings are equal, the longitudinal and lateral levels of the pump are aligned at the same time.
Installation method of centrifugal pump: elevation correction
The elevation of the water pump refers to the elevation of the axis of the water pump. The purpose of elevation correction is to check whether the elevation after installation of the pump is consistent with the design elevation, and measure it with a level and a level ruler. During the measurement, one leveling ruler is placed on the known leveling point elevation Hs, and the other leveling ruler is erected on the pump shaft.
Post time: 2021-11-30
