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ISO 9001 : 2008
CERTIFIED
Type : Gas Tight Damper
Model : For Electric Drive : GTD-GB-40-B-E
Blade : Aerofoil Type
Construction : Galvanized Steel (GI)
Construction : Stainless Steel (SS)
Gas tight dampers are designed such that they can isolate sections of a ventilation system with a very high level of sealing (gas tight). This can be required for safety reasons in certain operational conditions.
GTD-GB-40-B-E shut of dampers are designed so that after closure, even with failure of power supply to the actuator, the damper maintains the sealed closure in accordance with KTA 3601 (Guidelines for Nuclear Plant) and A0 A60 (type approved) for Marine, Oil & Gas applications. The compact design and robust actuator
mechanisms of these shut-off dampers enable them to be installed in any orientation.
As per Standards KTA 3601(0.01 m3/h x m2 at 2000 Pa)
Actual ratings are size dependent
3000 fpm (15 mt/sec) 2000 Pa
8″water gauge (2KPa).
20” W.g (5Kpa) (in closed condition)
Zone 1,2,21,22
-40°…+40°C (at T6)
-40°…+50°C (at T5)
II 2(1) G Ex d [ia] IIC T6
II 3 (1)G Ex nC [ia] IIC T6
II 3 (1)G Ex nC [ia] IIC T6
II 2(1) G Ex d [ia] IIC T6
II 3 D Ex tD A22 IP66T80°C
14 gauge (2 mm) thick galvanized steel sheet with 2″ (50mm) external flanges.
Double Skin blades (Aerofoil) of 14 gauge (2 mm) thick roll formed galvanized steel
300°C High temp, resistant Silicon rubber blade seals.
Stainless Steel.
High temperature resistant concealed ball bearings.
¾” (19 mm) Diameter axle.
Operation by electric actuator 24V / 230 V
Model : Exmax / RedMax
* Standard Construction.
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