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ET 500 Two-Stage Piston Compressor
Education / GUNT Hamburg / Thermal Engineering and HVAC / Power Engines and Machines /

The trainer provides all necessary data for recording the compressor characteristic and to depict the compression process on a p-V diagram.

  The pressures and temperatures for both stages are recorded using sensors and indicated on digital displays. The air throughput and the electrical power consumption are also measured. The measured values can be read on digital displays. At the same time, the measured values can also be transmitted directly to a PC via USB. The data acquisition software is included.

  The trainer is equipped with safety devices such as pressure relief valves and pressure switches.

Learning Objectives / Experiments

- Layout and function of a two-stage compressor
- Measurement of relevant pressures and

- Determination of the intake airflow rate
- Compression process on a p-V diagram
- Determination of the efficiency


[1] Trainer for recording the characteristic curve of a two-stage compressor
[2] Compressor with 2 cylinders in a V-arrangement
[3] Pressure vessel on 1st stage as intermediate reservoir 
[4] Intake vessel, with nozzle to measure the airflow rate, pressure sensor and additional manometer
[5] Pressure vessel on 2nd stage with safety valve, control valve and outlet silencer, and additional manometer 
[6] Instrumentation: sensors with digital displays
[7] LabVIEW software for data acquisition via USB under Windows XP or Windows Vista


Technical Data


- two-stage

- with 2 cylinders in a V-arrangement

- power consumption: 2.2kW

- speed: 710rpm

- intake capacity 250L/min

- operating pressure: 12bar, max. 35bar
Pressure vessels, 16bar; capacity:

- 1st stage: 5L

- 2nd stage: 20L

- intake vessel: 20L


Measuring ranges

- differential pressure: 0...25mbar

- pressure: 1x 0...1.6bar / 2x 0...16bar

- temperature: 4x 0...200°C

- power: 0...2500W


Dimensions and Weight
l x w x h: 1520 x 800 x 1400 mm
Weight: approx. 260 kg
Required for Operation
400V, 50/60Hz, 3 phases or 230V, 60Hz, 3 phases or 208V, CSA, 3 phases
Scope of Delivery

1 trainer

1 LabVIEW software CD + USB cable

1 manual

Order Details

061.50000  ET 500  Two-Stage Piston Compressor