In centrifugal pumps the energy is transferred hydrodynamically.In the hydrodynamic transfer of energy the fluid is accelerated by the impeller of the centrifugal pump. Therefore, the impeller of the centrifugal pump has to move with high velocity and thus a high rotational speed.
Understanding design and function of the pump; planning and executing assembly, disassembly and maintenance
Function of a turbomachine; configuration as pump or turbine with interchangeable rotor/impeller and stator/guide vane system
Side channel pumps
During the suction phase the side channel pump operates according to the positive displacement principle. As soon as the suction process is over, the side channel pump starts working like a centrifugal pump. The centrifugal force of the rotating impeller separates the fluid and gas. Side channel pumps are therefore self-priming pumps.
HL 962.03
HM 365.15
HM 362
Side Channel Pump
Side Channel Pump
Comparison of pumps
Self-priming three-stage pump
Investigate operating behaviour of centrifugal pumps, piston pump and side channel pump
Investigation of a self-priming, single-stage side channel pump
Axial-flow pumps
Axial-flow pumps are also known as propeller pumps. Axial-flow pumps come with fixed blades and with variable blades. The flow passes through the impeller in axial direction. In axial-flow pumps, the pressure is not built up by the effect of centrifugal force but, like the aerodynamic principle, by the propeller blade.
HM 365.45
HM 405
Side Channel Pump
Side Channel Pump
Operating behaviour of an axial propeller pump
Function of a turbomachine; configuration as pump or turbine with interchangeable rotor/impeller and stator/guide vane system
Positive displacement pumps
In positive displacement pumps the energy is transferred to the fluid hydrostatically. In the hydrostatic transfer of energy a displacement body reduces a working chamber filled with fluid and pumps the fluid into the pipe.
HM 285
HM 286
HM 365.16
Experiments with a piston pump
Experiments with a gear pump
Lobe Pump
Record characteristics of a reciprocating positive-displacement pump
Record characteristics of a rotary positive-displacement pump
Lobe pumps are used for delivering highly viscous and highly abrasive media
HM 365.17
HM 365.18
HM 365.19
Reciprocating Piston Pump
Gear Pump
Vane Pump
The most simple type of reciprocating piston pump consists of a piston that moves in a cylinder with one inlet and one outlet valve
A gear pump is characterised by a steady flow rate
Vane pumps can be used both for liquid and gaseous media
HM 365.21
HM 365.22
HM 365.23
Screw Pump
External gear pump
Vane Pump
Screw pumps are able to provide continuous delivery of even viscous media without pulsation or turbulence
The pumping medium is transported between the gears and the housing
Vane pumps can be used both for liquid and gaseous media
HM 365.24
CE 271
CE 272
Internal Gear Pump
Multi-head diaphragm pump
Rotary vane vacuum pump
Operating behaviour of an internal gear pump
Investigate operating behaviour of centrifugal pumps, piston pump and side channel pump
Interchangeable driven machines: three pumps, two compressors
CE 272
MT 182
MT 183
Rotary vane vacuum pump
Assembly & maintenance exercise: Screw pump
Assembly & maintenance exercise: Diaphragm pump
Generation of negative pressure over time
Understanding design and function of the pump; planning and executing assembly, disassembly and maintenance
Understanding design and function of the pump; planning and executing assembly, disassembly and maintenance
MT 184
MT 186
HM 362
Assembly & maintenance exercise: Piston pump
Assembly & maintenance exercise: gear pump
Comparison of pumps
Understanding design and function of the pump; planning and executing assembly, disassembly and maintenance
Understanding design and function of the pump; planning and executing assembly, disassembly and maintenance
Investigate operating behaviour of centrifugal pumps, piston pump and side channel pump
HM 299
Comparison of positive displacement machines and turbomachines
Interchangeable driven machines: three pumps, two compressors
Hydraulic turbines
Hydraulic turbines work with incompressible fluids: water turbines.