HL 109 Safety devices training panel
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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.
- trainer on heating systems and plumbing
- function of safety devices
- tested pressure vessel
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 95°C
Setting range of pressure reducing valve: 1,5…6bar
Measuring ranges
- pressure: 0…10bar
- temperature: 0…120°C
230V, 50Hz, 1 phase
230V, 60Hz, 1 phase
- trainer on heating systems and plumbing
- pressure vessel
- threaded heater element with switch cabinet
- 2 spring tube manometers
- 1 bimetallic thermometer
- thermal discharge safety device
- 1 system of safety devices with pressure reducing valve, shut-off valve, test connections and non-return valve, manometer connection and safety valve
- 2 blow-off lines, 1 filler pipe, 1 drain
- function of safety valves
- function and layout of a system of safety devices
- function of a thermal discharge safety device