Suction lift refers to the pressure occurs on the suction side. This pressure can be measured from the center line to the suction side.
Centrifugal Pump Suction Head
When the supply source is below the pump's centerline, LIFT SUCTION occurs. As a result, the pumping distance is the vertical distance, measured in feet, between the pump's centerline and the liquid being pumped at its free level. When the supply source is above the pump's center line, SUCTION LIFT occurs. STATIC HEAD is, as a result, the vertical measurement in feet from the pump's centerline to the fluid's free level. The STATIC HEAD is the vertical offset in feet between the pump's centerline and the liquid surface or free discharge point in the discharge tank. Total static height is the vertical distance, measured in feet, between the supply source's free level and the fluid's free exit point or surface. The head necessary to overcome flow resistance in pipes and fittings is known as FLOATING HEIGHT (hf). It depends on the liquid type, pipe size, and type of flow. Section 17C contains the drawing tables. The energy that a liquid has as a result of moving at a specific speed V is known as HEAD VELOCITY (hv). To put it another way, the proportional head with legs is where the water must enter to move at the same speed. It is essential to accelerate the water. 
Centrifugal Pump Parts
A centrifugal pump's essential parts are:
- Impeller
It consists of a wheel or rotor attached to numerous rotating wheels or pulleys. The impeller is installed on a shaft that is attached to an external energy source, which transfers fluid energy to it, causing the impeller to rotate. Open, partially closed, and shut. There are three categories for impellers: open plate Impeller that is only partially closed
- House
It is a tube that joins the top to the pump's inlet and the eye, or center, of the impeller. Two suction tubes that are attached to the eye on either side of the reaction pump's double-ended make up the device. The liquid is positioned at the bottom end for storage. The lower end, which is thin and enters the leg cavity, In centrifugal pumps, three different housing types are frequently utilized: casing, volute Flowers for the house vortex with tacks
- A supply pipe
It is a pipe that joins to the pump's outlet at its lower end, allowing the liquid to rise to the desired level. On the delivery line close to the pump output, there is a valve that is available and controls the flow from the pump to the delivery line.
- A foot valve-equipped washing tube with a strainer
The valve's inlet is attached to the washing pipe, while the other end is submerged in water. It has a foot valve and a hose at the water end. The foot valve opens vertically and is a one-way valve. In order to keep the centrifugal pump from clogging, unwanted water particles are filtered out using a filter. 
Centrifugal Pump Working Principle
The most popular form of pump used to move liquids is the centrifugal pump. Simply put, it employs a revolving impeller and centrifugal force to move other liquids. In many industrial applications, including as municipal (water and sewage plants), agricultural, power plants, mining, the oil and chemical industries, and other uses, it is the favored option, especially for moving liquids from one area to another. Typically, centrifugal pumps are able to move enormous amounts of liquid at extremely high flow rates. They can also change flow rates in a variety of ways. Centrifugal pumps often perform effectively with relatively low-viscosity liquids, such water or light oil. Centrifugal pumps must be powered by more horsepower to move more viscous liquids. Positive displacement pumps outperform centrifugal pumps in terms of energy efficiency for liquids with higher viscosities. Many liquid transport tasks are being investigated for centrifugal pumps. As a result, numerous sectors prefer to employ these pumps. Centrifugal pumps are most frequently used for water pumping, water supply, assisting fire prevention systems, and controlling hot water. Centrifugal pumps are employed in places like: Energy and the oil sector for power plants, liquid and liquid refining, and oil pumping. Irrigation systems, municipal buildings, flood control techniques, and gas distribution systems. Hydrocarbons, cellulose, sugar refining, food and pharmaceutical production, as well as chemical and petrochemical sectors. Uses for refrigeration and cryogenics in the aerospace and industrial sectors. Industrial and fire protection systems for heating, cooling, drinking water from boilers, pressure boosting, and sprinkler systems for fire protection. The way that centrifugal pumps work We will go over centrifugal pumps in this part. Centrifugal pumps are used to move liquid from one level to another or to create a flow. These pumps function through a direct method. The engine's rotational energy is transformed into energy in a flowing liquid by the centrifugal pump. The impeller and the casing, both of which are a part of the pump's wet end, are the two principal parts in charge of carrying out this function. The spinning component is the frame, and the air duct that encircles the frame is the case. A centrifugal pump's fluid enters the casing, strikes the impeller blades ahead of the blade, and rotates radially outward before leaving the blade through the blade distributor (volute). The fluid picks up speed and pressure as it travels past the impeller. 
Centrifugal Pump Impeller
In turbomachinery, an impeller is a revolving element with nozzles or nozzles (e.g. centrifugal pumps). The mechanical power (energy in the impeller) can be turned into pump power as a result of the change in flow in the impeller. A distinction is created between left and right hand impellers, which are located in the flow path. Single-stage, multi-stage, single-inlet, double-outlet, multi-inlet, in-line (tandem), or back-to-back matching impeller designs and arrangements can be used in multistage pumps, depending on the fluid flow pattern and the placement of the impellers on the pump shaft. 