HVAC duct fire damper

Fire protection dampers are usually open on the delivery and return wind pipes of ventilation and air-conditioning systems. Once a fire is prevented, the gas temperature in the pipeline reaches 70 °C and is closed on its own, and can meet the requirements for smoke leakage and fire resistance integrity within a certain period of time. It acts as a smoke barrier. The exhaust dampers is used on the exhaust system pipe or at the suction entrance of the exhaust fan. It is usually closed and meets the requirements for air leakage. When the fire or needs to exhaust smoke, manual and electric valves are opened to discharge smoke.

The fire valve is usually installed in the air duct of the ventilation and air conditioning system;

The smoke exhaust fire valve is generally installed in the air duct of the smoke exhaust system.

Product Features:

1. Multiple specifications and wide application range

2. No welding TOX process for galvanized sheet

3. Common Q235 steel plate forming process

4. Flexible and reliable movements

5. Beautiful appearance

Product Specifications of fire damper

Rectangular damper: W × H identification, W, H for the size of the inner diameter;

Round damper: φ D identification, D is the inner diameter of the round valve;

Unit: mm.

Product structure of fire damper

The fire damper consists of Valve body, blade, actuator, temperature sensor, etc..

Cigarette damper without temperature sensor.

Packing:  Plastic film packaging

Delivery:  Within 30 days after receiving advanced payment.

Shandong GRAD Group Co.,Ltd. is established in 1993, located in Dezhou Shandong,covering an area of 700 thousand square meters, with more than 2500 employees. The total capital is 925 million RMB, and annual output value exceeds 2.5 billion RMB. During 20 years' development, GRAD Group concentrates on the central air-conditioning and compound material products and show the world a high-technological enterprise combining construction budget, technical consultation, product design, Manufacturing and debugging service. There are 10 series, over 130 Kinds of products covering the whole central air-conditioning series and the compound materials series Products. The high standard workshop covering 350 thousand square meters.

Q1. Where is your loading port?

A: Qingdao/Shanghai/Tianjin, China or else port as for your request.

Q2. What's your company's main products?

A: Our company is specialized in central air-conditioning,ventilation,FRP products.

Q3. What's the MOQ for your production?

A: The MOQ is 1pcs or depends on your products requirements.

Q4. Are you a manufactuer or trading company?

A: We are a manufactuer.