HL 109 Safety devices training panel
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
