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Products  |  Thermal Engineering and HVAC  |  Heating and Ventilation in Buildings  |  HL 109
HL 109 Safety Devices Training Panel Show data sheet (pdf file) Print page
Technical Description

An electrically heated pressure vessel is mounted on the panel of the trainer. The vessel can be filled via different pipe sections. One pipe section is equipped with a system of safety devices for protecting a sealed water heater. The pressure vessel is also equipped with a thermal discharge safety device that discharges to a blow-off pipe.

  When the pressure or temperature level set is exceeded, the safety devices are tripped. Pressure and temperature in the system are displayed.

Learning Objectives / Experiments
- Function of safety valves
- Function and layout of a system of safety devices
- Function of a thermal discharge safety device
* Trainer on heating systems and plumbing1
* Function of safety devices1
* Tested pressure vessel
Alternative products
HL 392C -- Safety & Control in Heating Systems
[1] Trainer on heating systems and plumbing
[2] Pressure vessel
[3] Threaded heater element with switch cabinet
[4] 2 spring tube manometers
[5] 1 bimetallic dial thermometer
[6] Thermal discharge safety device
[7] 1 system of safety devices with pressure reducing valve, shut-off valve, test connections and backflow preventer, manometer connection and safety valve
[8] 2 blow-off lines, 1 filler pipe, 1 drain
Technical Data

Pressure vessel made of steel (1.4541)
- volume: approx. 5L
- max. operating pressure: 7.8bar
Threaded heater element

- power: 3kW

- protective system: IP 65
Thermal discharge safety device: actuated at 95C
Setting range of pressure reducing valve: 1.5...6bar

Measuring ranges
- pressure: 0...10bar
- temperature: 0...120C


Dimensions and Weight
l x w x h: 1660 x 250 x 1100 mm (panel)
Weight: approx. 50 kg (panel)
Required for Operation
230V, 50Hz, 1 phase
Water connection, drain
Scope of Delivery

1 trainer

1 set of hoses

1 manual

Order Details
065.10900  HL 109  Safety Devices Training Panel
© 2005 G.U.N.T. Gerätebau GmbH