| Customization: | Available |
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| Material: | Carbon Steel, Galvanized Steel, Stainless Steel |
| Function: | Manual, Motorized |
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China hot sale fire smoke damper for ventilation duct 
Product Description
The fire damper is usually installed on the ventilation pipe. The damper is normally open and it will be closed when the air temperature reaches 70 °C.
Smoke exhaust fire damper is generally installed on the air duct of the smoke exhaust system. It is normally open. When a fire occurs, the smoke detector emits a fire alarm signal. The control center uses the DC24V signal to exhaust smoke. When the flue temperature reaches 280 °C, it will shut down automatically.
The smoke exhaust damper is generally installed on the air duct of the smoke exhaust system. It is normally closed. When a fire occurs, the smoke detector sends a fire alarm signal. The control center sends an electric signal to the solenoid on the damper to open the damper quickly, or manually open the damper quickly for smoke exhaust.
Features
1. Using galvanized steel as material to make sure good insulation performance, fire & corrosion resistance.
2. Duration, long service life.
3. Easy installation.
4. The flange is bended directly by the frame.
5. The valve size and color can be customized according to customer's requirements.
6. By DC24V power to close the valve
Application
Fire dampers are used in air ducts of ventilation and air-conditioning system which has smokeproofing and fireproofing requirements, especially suitable for the important buildings that can not be reset manually.
Installation Attentions
1. The valve body should be hoisted independently to prevent the deformation of the pipe from affecting the opening or closing of the valve.
2. The valve can be installed vertically or horizontally. No matter what kind of blade, the blade must be parallel to the ground. If the blade cannot be parallel to the ground, it must be declared when ordering.
3. On the side of the valve operator and on the other side of the spring mechanism, there should be no less than 200mm of clearance for maintenance.
4. When the valve is installed in the ceiling, there should be an inspection hole under the operator, the size is not less than 450*450mm.
5. The connection between the fire damper and the firewall should be insulated by refractory materials. The electrical circuit should be protected by Ø20mm refractory protection tube.
6. When using the remote control operator, the control cable should be protected by Ø20mm refractory tube. The bending radius of the tube should be no less than 200mm, the bending point should not exceed 3, and the cable should not be longer than 6m.
7. The cable wrapped around the operator should be no less than 3 turns, and the cable head should be fastened with a pressure plate.
8. When the remote control operator is installed, the installation box should be pre-installed on the wall. Please refer to the remote control operator for the size of the installation box.
FAQ
1. Are you trading company or manufacturer?
We are factory. Welcome to visit our factory.
2. What's the guarantee, in case the damper breaks down?
The damper has one year's guarantee. If it breaks down, generally speaking, our technician will figure out what the problem may be according to client's feedback. Parts will be replaced for free if the problems are caused by quality fault.
3. How long is your delivery time?
Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
4. What is your terms of payment?
100% T/T deposit for small amount less than 3000USD.
30% T/T in advance, balance before shippment. L/C at sight also acceptable.
5. How is the packing?
Carton+wooden frame packaging or as per your request.
100% safe and save space as much as possible for container loading.
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