The centrifugal pump is the most used pump type in the world. The principle is simple Amir Johnson Jersey , well-described and thoroughly tested, and the pump is robust, effective and relatively inexpensive to produce. There is a wide range of variations based on the principle of the centrifugal pump and consisting of the same basic hydraulic parts. The majority of pumps produced by Grund fos are centrifugal pumps.
Principle of the centrifugal pump:
聽An increase in the fluid pressure from the pump inlet to its outlet is created when the pump is in operation. This pressure difference drives the fluid through the system or plant. The centrifugal pump creates an increase in pressure by transferring mechanical energy from the motor to the fluid through the rotating impeller. The fluid flows from the inlet to the impeller centre and out along its blades. The centrifugal force hereby increases the fluid velocity and consequently also the kinetic energy is transformed to pressure.
Different Types of Pump Head
Total Static Head -聽 Total head when the pump is not running Total Dynamic Head (Total System Head) - Total head when the pump is running Static Suction Head - Head on the suction side, with pump off, if the head is higher than the pump impeller Static Suction Lift - Head on the suction side, with pump off, if the head is lower than the pump impeller Static Discharge Head - Head on discharge side of pump with the pump off Dynamic Suction HeadLift - Head on suction side of pump with pump on Dynamic Discharge Head - Head on discharge side of pump with pump on
Typical Applications for Centrifugal Pumps:
Fillingdraining Cooling tower transfer Filtration of corrosives, caustics, dyes, soaps, brines, and other cleaning fluids Feed pumps for spraying systems General fluid transfer Line cleaningirrigation Pilot plant processing
Use a Centrifugal Pump:
tric driven and suitable for continuous duty llent pulse less flow d transfer at high flow rates, low pressure lable in a range of materials
聽Magnetic drive centrifugal pumps operate with a magnetic field that couples the impeller and motor together. There are no
shafts or seals connecting the impeller and motor. Therefore friction loss, wear, contamination and leakage caused by these
shafts and seals are eliminated. 聽 聽 聽 聽 Mechanically coupled centrifugal pumps utilize a rotating impeller driven by a shaft with a seal that is connected to
the motor. They are often less expensive than magnetic drive and can achieve high flow-rates and pressures.
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