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High efficiency automatic fire damper smoke damper
Grandaire Fire dampers Series can be installed on walls,light walls and floorsThey are designed as safety dampers.Shut off of air flow in cases of fire .







NAME | SPECIFICATION | ||
1 | Flange width | Valve side length (MM) | Width (MM) |
A≤630 | 30 | ||
630<A≤1500 | 30 | ||
1500<A≤2500 | 30 | ||
A>2500 | 30 | ||
2 | Material | Adopt high quality galvanized steel, riveting by non-rivet method | |
3 | Valve thickness | δ2.0MM high quality galvanized sheet | |
4 | Blade shaft | Φ12 round steel | |
5 | Shaft sleeve | Brass | |
6 | Steel valve surface anticorrosive disposal | Pickling, phosphating then spraying | |
7 | Temperature- fuse protector | 70 degrees | |
8 | Control mechanism classification | Manual on and off device, temperature control | |
9 | Micro switch | Contact capacity 380V 3A | |
10 | Connection port | Contact rating 500V 3A | |
11 | Action method | Temperature-fuse protector functions at 70 degrees, the valve shut down automatically under the pull of spring. | |
12 | Reset method | Manual reset | |
13 | Air leakage | In standard conditions, as the differential pressure is 300 Pa, the air leakage is less than the national standards. | |

Any Size can be customized!
Fire damper with air grille/ supply-air outlet/ multi-blade smoke outlet
1. Temperature sensor: action temperature at 280°C
2. Adjustable blade, convenient to regulate air volume
3. Temperature sensor, output the signal, DC24V control
4. Decoration air grille installed





Wecolme contact us:
Contact Name:Taylor Wang
Whatsapp/Phone:+86-15662685972
Email:chinatenrun at tenrunfrp.com
Skype:chinatenrun at tenrunfrp.com
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