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HM 299 Pump and Compressor Unit
Education / GUNT Hamburg / Fluid Mechanics and Hydrology / Hydraulic Fluid Energy Machines /


 The modular HM 299 system allows the investigation of different machines (reciprocating machines and turbomachines). Each machine is mounted on a base plate, which can easily be fitted into the unit. It is powered by a belt drive. Hoses with quick-action couplings provide the supply lines. The unit itself includes the electric drive motor with speed control, 2 pressure vessels for the compressor experiments, a measuring tank and a supply tank for the pump experiments and a protection cover. The intake and delivery pressure, temperature, motor speed and power are measured and displayed digitally. The corresponding flow is measured indirectly and transferred to the PC data acquisition software.

Learning Objectives / Experiments
- Comparison of different machines for liquid and 
  gaseous media:
 + Piston compressor
 + Rotary vane compressor
 + Piston pump
 + Centrifugal pump
 + Series/parallel operation of 2 centrifugal pumps
 + Impeller pump
- Determination of overall efficiencies
- Verification of compressor data
- Recording of pump curves
[1] Mobile unit for turbomachines and reciprocating compressors 
[2] 6 belt-driven machines: piston compressor, rotary vane compressor, piston pump, impeller pump, 2 centrifugal pumps
[3] Drive motor: Speed controlled by frequency converter
[4] 2 pressure vessels, 10ltr, max. 10bar
[5] Water measuring tank with pressure switches, overflow, return to supply tank
[6] Indirect flow measurement via liquid level (water) or Venturi nozzle (air)
[7] PC data acquisition with LabView software under Windows 2000/XP
[8] 230V, 50Hz, 1 phase
Technical Data
Electric motor, 4-pole: max. power at nominal operation: 0.37kW, nominal speed:1500rpm 
Piston compressor: max. capacity: 115ltr/min, max. delivery pressure: 10bar
Rotary vane compressor: max. 63ltr/min, max. 0.7bar rel., safety valve: 1...1,3bar rel.
Centrifugal pump: max. 60ltr/min, max. 1.8bar
Piston pump: max. 14.6ltr/min, max. 14bar
Impeller pump: max. 25ltr/min, max. 1.5bar
Dimensions and Weight
l x w x h : 1500 x 750 x 1650 mm
Weight : approx. 85 kg
Required for Operation
230V, 50Hz, 1 phase
Scope of Delivery
1 unit, 1 piston compressor, 1 rotary vane compressor, 1 piston pump, 1 impeller pump, 2 centrifugal pumps, 1 USB module, 1 data cable, 1 software CD, 1 instruction manual
Order Details
070.29900  HM 299  Pump and Compressor Unit