Circular fire valves CR2+CFTH

Technical specification

Application
Mounted in ventilation ducts. They pass through walls to prevent the spread of fire in the duct system. Equipped with fireproof barrier and fireproof hull, resistant to moisture.
Fire resistance - CU2 - 120 minutes (2 hours)
Mechanism
CFTH – closes automatically, with fusible link – the valve automatically closes with the help of a spring, the moment the temperature reaches 72 ° C
Accessories
FCU-SC - limit switch, allows you to trace the fire damper
Design Specification
Circular fire damper with servo motor 24V and  fusible element at 72 ° C. Fire class 120 min, model CR2 + CFTH.
This serves as an example of a completed order:
CR2+CFTH 400
Notes:
CR2 – a valve with fire resistance of 120 min
CFTH – closing mechanism with fusible link 72 ° C
400 – the diameter of the valve (look at the chart)
Technical characteristics