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Thermal releases

Thermal releaseThermal releases, often called thermal initiators or TAGs, are used to trigger a smoke and heat exhaust ventilator (SHEV) locally in the event of a fire. When the ambient temperature of the TAG exceeds a certain threshold, a glass vial bursts and the CO2 cylinder is pricked. This causes the gas to flow into the pneumatic cylinder and opens the smoke vent. The glass vials are available for different temperatures. The most common are 68°C and 93°C. Care must also be taken to ensure the correct diameter for the glass bulbs. The thermal activators differ in their use (installation in systems with open-close cylinders, "open only" systems, with/without venting...) and in the connection thread for the CO2 cartridge.

TAGs can also be triggered remotely. For example, with 24V, pneumatic or pyrotechnic elements (compressed gas generator, compressed gas release). There is also the possibility of a "triggered" feedback. Here, a spring-loaded contact senses the state of the glass bulb and closes a contact when a local SHEV release has occurred.

Thermal releases, often called thermal initiators or TAGs, are used to trigger a smoke and heat exhaust ventilator (SHEV) locally in the event of a fire. When the ambient temperature of the TAG... learn more »
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Thermal releases

Thermal releaseThermal releases, often called thermal initiators or TAGs, are used to trigger a smoke and heat exhaust ventilator (SHEV) locally in the event of a fire. When the ambient temperature of the TAG exceeds a certain threshold, a glass vial bursts and the CO2 cylinder is pricked. This causes the gas to flow into the pneumatic cylinder and opens the smoke vent. The glass vials are available for different temperatures. The most common are 68°C and 93°C. Care must also be taken to ensure the correct diameter for the glass bulbs. The thermal activators differ in their use (installation in systems with open-close cylinders, "open only" systems, with/without venting...) and in the connection thread for the CO2 cartridge.

TAGs can also be triggered remotely. For example, with 24V, pneumatic or pyrotechnic elements (compressed gas generator, compressed gas release). There is also the possibility of a "triggered" feedback. Here, a spring-loaded contact senses the state of the glass bulb and closes a contact when a local SHEV release has occurred.

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BSC Glaskolben BSC glass bulb 5mm
from €5.76 *
Delivery time may vary
BSC Spannschraube BSC Clamping screw, various threads
from €8.02 *
Delivery time may vary
BSC Thermisches Auslösegerät TAG VV-690-42 BSC Thermal release TAG VV-690-42
€108.39 *
Ready for shipment immediately, delivery time approx. 1-3 working days
BSC Thermisches Auslesegerät TAG WV-690-41 BSC Thermal release TAG WV-690-41
€108.39 *
Ready for shipment immediately, delivery time approx. 1-3 working days
BSC DE-Spannbügel BSC DE Clamping bracket
€8.02 *
Ready for shipment immediately, delivery time approx. 1-3 working days
BSC TM 24 Volt für TAG Typ 40-43 BSC TM 24 Volt for TAG type 40-43
€142.07 *
Delivery time 9 - 12 Working days
BSC Pneumatischer Auslösezylinder PA 10 BSC Pneumatic release cylinder PA 10
€38.48 *
Ready for shipment immediately, delivery time approx. 1-3 working days
BSC Elektrischer Meldekontakt EMK 16x1,5 BSC Electrical signaling contact EMK 16x1.5
€52.80 *
Delivery time 9 - 12 Working days
BSC Pneumatischer Auslösezylinder PA 2 BSC Pneumatic release cylinder PA 2
€31.81 *
Ready for shipment immediately, delivery time approx. 1-3 working days
BSC Halterung für TAG 69_40/41/42 BSC Bracket for TAG 69_40/41/42
€8.41 *
Ready for shipment immediately, delivery time approx. 1-3 working days
BSC Thermisches Auslösegerät TAG 690-40 (ohne Entlüftung) BSC Thermal release unit TAG 690-40 (without vent)
€107.33 *
Delivery time 9 - 12 Working days
BSC Thermisches Auslösegerät TAG 690-40 (ohne Entlüftung) BSC Thermal release unit TAG 692-40 (with vent)
€107.33 *
Delivery time 9 - 12 Working days
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