Thermally triggered shut-off device
A thermally triggered shut-off device (TAE) is a fire protection valve which, in the event of external fire exposure, can prevent the support and spread of a fire and can prevent an explosion. Gas lines and other pipelines, control devices, gas meters and all other gas devices can thus be protected from destruction.
A thermally triggered shut-off device responds to the effects of external heat on a pipe or a device at around 100 ° C. At this temperature, a solder or an expansion element melts and releases the pretension of a closing spring, which immediately interrupts the gas path. This prevents the gas from flowing into the seat of the fire.
To protect individual fire compartments in air conditioning and ventilation technology , thermally triggering fire protection valves and fire protection flaps must also be provided, but these are generally not referred to as "thermally triggering shut-off devices (TAE)".
For gas, gas taps can be required as TAE under certain conditions in accordance with the TRGI , e.g. B. in the building entry area , with gas meters, in front of gas appliances and with gas sockets .
The use of a TAE is prescribed for the usual gas appliances such as gas boilers and gas stoves in domestic homes.
Norms
The tests and requirements that fire protection fittings must meet if they are to be approved are set out in the framework specifications of DIN DIN 3586 / 2003-10.
swell
- Hermann Recknagel, pocket book for heating + air conditioning 07/08, Oldenbourg Industrieverlag, 2007, ISBN 9783835631045