fire dampers: round dampers
KTM
KTM fire dampers are designed for installation in general ventilation systems as shut-off divisions. The function of these dampers is to stop the spread of fire, temperature and smoke.
Irrespective of the position of the axis of rotation of the shut-off damper, the KTM fire damper is designed for horizontal installation (in walls) and vertical (in ceilings) and outside the partition.
The KTM shut-off valve consists of a casing (galvanized steel sheet), a movable cut-off barrier made of a Promatect-H calcium-silicate board and a drive mechanism with a release element.
Automatic closure of the damper occurs as a result of thermal switch activation with a nominal temperature of 72 ± 5 ° C. On special order, the KTM-E (ME) damper can be equipped with a thermal cut-out with an activation temperature of 95 ° C.
types:
– KTM-DN-M – socket construction
– KTM-DN-N – nipple construction
drive and triggering systems:
– KTM-E – damper with an electric motor (BELIMO series BLF or BF or their equivalents) with a return spring
– KTM-ME – damper with an electric actuator (BELIMO series BLF or BF) with return spring, designed for frequent opening and closing, with the possibility of using it to regulate air or pressure during normal operation of general ventilation.
Fire resistance: EIS120
Technical Approval: AT-15-7566 / 2009
Certificate of Conformity: ITB-1662 / W
Atest Higieniczny: HK / B / 0153/01/2008
The length of the KTM flaps can range from 150 to 350 mm for the socket version and from 195 to 395 mm for the nipple version.
The basic series of diameters are:
DN100, DN125, DN160, DN200
The manufacturer offers custom-made all dimensions between sizes from DN100 to DN200.
