1, the water pipeline must be perfectly sealed. Check the connections between the water pump and the pipeline for any looseness. 2, add bearing lubricating oil to the bearing housing. Observe that the oil level is at the center line of the oil gauge. The lubricating oil should be replaced or...

There are many centrifugal pump selection criteria that can maximize the efficiency and reliability of a centrifugal pump, such as: the size of the pump itself; what kind of liquid needs to be pumped - the temperature, density, viscosity, pH and solids content of the liquid; the size of the...

1、 Main causes of mechanical of centrifugal water pump seal leakage The mechanical seal is generally of built-in type, and it is often necessary to determine the cause of seal leakage according to experience, on-site observation and instrument measurement analysis. First, find out the impact of...

What is cavitation? When the local pressure of the liquid in the pump drops to the critical pressure, bubbles will be generated in the liquid. Cavitation is the whole process of bubble gathering, movement, splitting and elimination. The critical pressure is generally close to the vaporization...

The internal and external mounting seals of centrifugal pump are classified according to the arrangement, see Figure 1. Most seals are single seals. Single seals can be installed inside or outside the process fluid. Figure 1: Sealing arrangement (left for internal installation seal, right for...

Motor vibration is one of the current operating conditions of motor. Do you know why the motor of centrifugal pump and other electrical equipment use 50Hz AC instead of 60Hz? Some countries in the world, such as Britain and the United States, use 60Hz alternating current because they use the...

Performance evaluation of centrifugal pump system The pump steward was published in Hunan at 13:27 on December 2, 2022 picture Source: Pump Salon What is a pump evaluation? Pump evaluation is a small performance test of the pump in its normal operating system. For pumps with a small operating...

The influence if we select a centrifugal pump too large or too small

Why can't you choose a high head pump under the condition of low head? High head pumps cannot be used at low head. Before purchasing a water pump, many users think that a pump with a higher head can be selected for a lower head condition to use a wider range of head. In this misleading...

The setting principle of the outlet and inlet diameters of centrifugal pumps: generally, the outlet diameter is selected according to the economic flow rate, and the outlet diameter is determined according to the flow rate. When the pipe diameter is less than 250, it is 1~1.2m/s, and when the...