|Place of Origin:||TIANJIN CHINA|
|Minimum Order Quantity:||10 sets|
|Price:||USD 50 -580 set|
|Packaging Details:||carton box|
|Delivery Time:||7-20 days|
|Payment Terms:||T/T, L/C ,Paypal ,Western Union|
|Supply Ability:||1000 sets per week|
|Material:||Galvanized Steel Sheet, Stainless Steel Sheet||Size:||Customized|
|Control:||Mechanical Action||Operation Temperature:||70℃|
|Fire Resistance rating:||1.5h||Normal:||Open|
The fire damper is widely installed supply or return air ducts in ventilation and air conditioning system. It normally keep open, When the temperature of fire that pass through the damper reaches the fusible temperature setting, the blade spring will close automatic to block fire smoke and flame extending. After the damper acts, it will reset by manual.
It can meet the requirements of fire stability and fire integrity in a certain period time. It is usually installed in the duct through the firewall. The main effect is preventing fire and smoke.
The fire damper is installed the central conditioning duct system. Its working principle is control the temperature of fusible alloy. The damper will be closed by the effect of gravity and spring. When it is fire, flame go into the ducts with the high temperature make the fusible alloy in the damper melting or make the memory alloy produces deformation to close the damper automatically. This series of damper is widely used in the places of air ducts with cross fire zone.
Fire damper Setting Position:
Fire damper is set on the ventilation and air conditioning system, smoke extraction fire damper is set on the smoke exhaust system duct. This way can prevent high temperature toxic gas from transporting when the fire.
There should be set the fire damper in the following conditions:
1. The ducts through the fire zone.
2. The ducts through ventilation, air conditioning computers rooms
3. The connected junction layer duct of vertical horizontal section duct and level duct.
4. Both sides of the duct crossing deformation cracks.
|Product||Round fire damper|
|Size||Can be customized as request.|
|Material||Galvanized steel sheet|
|Damper closed temperature||70℃|
|Fire resistance rating||1.5 hour|
|Air leakage||<500m3/ m2 ‧ h|
|Resistance coefficient when fully open||<0.5|
Contact Person: Manager