TSK

TSK-4 is mainly used in rectangular ventilation ducts for shut-off, volume and pressure control. An actuator is available as an accessory. The damper can also be supplied with a circular duct connection. For manual adjustment, the damper blades are turned by the lever on the outside of the damper. The lever is locked in the desired position with a wing screw. If the damper is ordered with an adjustable lever and the actuator is to be retrofitted, the lever and bracket must be removed. Then, the actuator must be attached to the actuator bracket.

Note: For height 1400 – 2000 mm, 2 actuators must be used

The table shows a selection of recommended Belimo actuators, given in Nm. See table 1 for actuators.

Specification text

Multileaf damper, leakage class 4, for rectangular ducts. TSK-4 is delivered as standard in width and height modules of 50 mm and with geared connection. Maximum size for 1 damper is B = 1500 mm × H = 2000 mm. If the width is over 1500 mm an extension part is used for a total width up to 2600 mm. For damper with height 1400 mm up to 2000 mm, 2 actuators must be used. When the height exceeds 1200 mm a link suspension is used for better stability. The damper opens by rotating the axel counterclockwise (CCW). The sprockets are protected by a cover, and are placed outside of the airstream. TSK-4 has air leakage class 4 for damper in closed position, casing leakage class B, and complies with pressure class ≤ 1000 Pa. Operating temperature is -20 – 80 °C

1 Type 
TSK-4 Damper

2 Width [mm]
200 – 2600
Damper with a width of more than 1500 mm, and up to 2600 mm, consists of 2 dampers put together.

3 Height [mm]
200 – 2000

Damper with a height of over 1400 mm must be equipped with 2 actuators.

4 Control components

0 manual lever
1 NM24A
2 NM230A

3 NM24A-SR

4 NM230A-SR

5 SM24A

6 SM230A
7 SM24A-SR

8 SM230A-SR

9 SFA.1 TR 24 V

10 SFA.1 TR 230 V

11 SP24A-SR

12 NM24A-MOD

13 SM24A-MOD

5 Circular connection [Ø mm]
No entry: standard
400 – 1250

Order example: TSK-4/1000×1000/0/400