This product is discontinued ×

Art no: 311931  Weight: 0 gram  Volume: 0 l  Customs statistics no.:


Technical details can be found here

Tune-R-2 is control damper for round ducts. It has blade tightness class 1 and casing tightness class C tested according to EN 1751. C1 version is required for duct installation with airtight requirements towards the outside of the duct or to minimize the leakage towards the outside surroundings (for example hospital patient rooms, industry applications, etc). The damper special construction allows external insulation up to 50 mm. The damper can be supplied in manual or motorized version with integrated position indicator. Maximum allowed temperature is 100°C. Maximum duct pressure is 1000 Pa.


The damper is manufactured from galvanized steel sheet and is silicone free. All gaskets are manufactured from black rubber. Plastic bushings are from PPO material. All materials are flame retardant. It is available from dimensions 80-630 mm.


Tightness class versions

1 - Casing tightness class A & blade tightness class 1 (no rubber gasket on inlet and no rubber gasket on blade)

*2 - Casing tightness class C & blade tightness class 1 (rubber gasket on inlet and no rubber gasket on blade)

3 - Casing tightness class C & blade tightness class 4 (rubber gasket on inlet and rubber gasket on blade)


Actuator versions

H - handle (hand operated)

M0 - preparation for actuator

M1 - 230V rotary actuator

M2 - 24V rotary actuator

*M3 - 24V, 0-10V operated actuator

M4 - 230V spring return actuator

M5 - 24V spring return actuator

M6 - 24V, 0-10V spring return actuator


* current version


Check availability Is in stock
Earliest delivery {{earliestdelivery}}
Open Close

{{p.Quantity}} {{settings.commerce.stats.Unit}}


Products in the same series