FDMS / FDMS-VAV

The FDMS fire dampers are closures in the ducting of HVAC equipment, which prevent the spread of fire and combustion products from one fire compartment to another by closing the air duct in the places of installation. In the event of a fire, the FDMS fire damper blade automatically closes the ventilation duct by means of a closing spring or a return spring of the servo drive. The dampers are fitted with a collar, which replaces the function of the fire seal and thus simplifies its own installation in the fire compartment structure.

The FDMS-VAV fire dampers are additionally equipped with variable airflow control, as with VAV controllers. The FDMS-VAV dampers have the housing extended by an extension with a measuring cross and a controller. The FDMS-VAV damper is closed only by means of a servo drive.

Damper characteristics:
- CE certification according to EN 15650
- tested according to EN 1366-2
- classified according to EN 13501-3+A1
- fire resistance up to EIS 60
- tightness according to EN 1751, class C via body and class 2 via blade 
- corrosion resistance according to EN 15650
- In the case of FDMS cycling test C 10 000 according to ČSN EN 15650
- In the case of FDMS-VAV cycling test C 20 000 according to ČSN EN 15650
- In the case of FDMS, the damper control is mechanical or by means of a servo drive
- In the case of FDMS-VAV, the dampers are only operated by means of a servo drive
- P-mark certification from the RISE institute in Sweden No. SC1433-17

Faultless operation of the dampers is ensured under the following conditions:
- Maximum air flow speed - 12 m/s.
- Maximum pressure difference on the damper - 2500 Pa.
- The operation of the dampers does not depend on the direction of air flow (circulation). In the case of the FDMS-VAV, the direction of air flow is precisely given.
- The damper can be placed in any position.
- The dampers are designed for air without abrasive, chemical and sticky additives.
- The dampers are designed for macroclimatic areas with a mild climate according to EN 60721-3-3.
- The temperature at the installation site is permitted in the range from -30 °C to +50 °C.