How to choose a centrifugal pump- vertical or horizontal

How to choose a centrifugal pump- vertical or horizontal

From the structural characteristics, the two kinds of pumps can be seen from the shape, the difference is that the vertical centrifugal pump is standing, and the horizontal centrifugal pump is lying

Horizontal pump features

1. Horizontal pump is simple, easy to repair and maintain. The horizontal centrifugal pump runs smoothly and has a long service life. The inlet and outlet can be installed at 90 degrees.

2. Though the horizontal type takes up space, its high efficiency, and the power can be amplified. The accuracy of the horizontal pump needs to be adjusted after installation.

3. Ordinary horizontal pumps (not self-priming pumps) have poor self-priming ability and cannot pump out the medium at all from the tank below. The horizontal self-priming pump has many limitations. The self-priming height cannot exceed 5 meters, the medium cannot be too viscous, and the inlet cannot have air leakage. Therefore, when the above conditions can’t meet, only vertical long-shaft pumps can be selected.

Vertical pump features

1. The vertical pump is integrally connected and easy to install; the vertical long-shaft pump is troublesome to maintain and needs to be lifted every time it is repaired. Moreover, the long shaft pump needs to replace the submerged sliding bearing for a long time. If it is not replaced, the possible consequence is that the centrifugal force of the shaft will become larger and larger, resulting in a larger shaft runout value. If it is not replaced in time, it will cause a mechanical accident.

2. The vertical long-shaft pump is mostly used in the condition of installation in underground tanks that cannot be poured backwards. Or there is no space on site to make the foundation for the horizontal self-priming pump, and only the vertical long-shaft pump can be placed on the tank.

3. The vertical centrifugal pump has the same inlet and outlet diameters and is located on the same center line. It can be installed in the pipeline like a valve. The appearance is compact and beautiful, the floor space is small, and the construction investment is low. For outdoor use.

4.The impeller is directly installed on the elongated shaft of the motor, with short axial dimension and compact structure. The pump and motor bearings are reasonably arranged, which can effectively balance the radial and axial loads generated by the operation of the pump, thus ensuring the smooth operation of the pump. , Small vibration and low noise.