Smoke & Fire Damper
Product Introduction:
Improving ventilation and smoke exhaust functions is essential for industrial plants and civil buildings, both for fire protection and to maintain a suitable environment.
Fire dampers are typically installed on the ducts of ventilation and air conditioning systems, while smoke dampers are installed on the ducts of smoke exhaust systems. Fire dampers are normally open, while smoke dampers are normally closed. Both offer a variety of adjustment methods and types.
Product Categories:
Fire dampers: Fire dampers are installed on the supply and return air ducts of ventilation and air conditioning systems. They are normally open and automatically close when the air inside the duct reaches 70°C in the event of a fire. They meet fire resistance stability and integrity requirements for a certain period of time, acting as a smoke and fire barrier. They include gravity fire dampers, fire control dampers, fire vents, airtight fire dampers, smoke and fire dampers, and electronically controlled smoke and fire dampers, among other products.
Smoke exhaust dampers: These are used in smoke exhaust system ducts or at the intake of smoke exhaust fans. They are normally closed. In the event of a fire, the valve opens manually or automatically in response to a fire alarm signal. Depending on the system's function, the valve automatically closes when the smoke temperature in the duct reaches 280°C. These dampers meet fire resistance stability and integrity requirements within a certain timeframe, acting as a smoke and fire barrier. These products primarily include smoke exhaust fire dampers, plate-type smoke vents (for ceilings), and vertical shaft smoke vents. Fire dampers and smoke exhaust dampers are critical components in ventilation, air conditioning, and smoke control and exhaust systems.
Air volume control valve: also known as air damper, is an indispensable central air conditioning terminal accessory in ventilation, air conditioning and air purification projects of industrial plants and civil buildings. It is generally used in air conditioning and ventilation system pipes to adjust the air volume of branch pipes, and can also be used for mixing and adjusting fresh air and return air.
Product category table:
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Fire damper series
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| Product name |
Model+Function Code |
Function |
State |
| Self weight fire damper |
FHF-W |
Normally open, the fuse operates at 70 ℃/150 ℃, and the valve automatically closes under the force of blade gravity or spring force. |
normally open |
| Smoke and fire dampers |
FHF-W-K |
Normally open, when the fuse is activated at 70 ℃/150 ℃, the valve automatically closes. Manually turn on or reset. |
normally open |
| Fire control valve |
FHF-WS-FK |
Normally open, the 70 ℃ fuse will activate and the valve will automatically close. Manually turn on or reset.
Adjust the air volume in five levels within the range of 0-90 °. Output valve closing signal, whether to output signal according to user needs.
|
normally open |
| Electric fire damper |
FHF-WSDc-K |
Manually close or reset; Normally open, when the airflow temperature reaches 70 ℃, the fuse will activate to automatically close the valve.
Output valve closing signal.
|
normally open |
| Electric fire control valve |
FHF-WSDc-FK |
Manually close or reset; Normally open, when the airflow temperature reaches 70 ℃, the fuse will activate to automatically close the valve. Output valve closing signal. It has air volume adjustment function. |
normally open |
| Fire damper |
FHF-WSDc-K |
Normally open, when the airflow temperature reaches 70 ℃, the fuse will activate to automatically close the valve. The valve can be closed through a DC24V power supply. Manually turn on or reset. Output valve closing signal, which can be interlocked with other devices. |
normally open |
| Fireproof vent |
FHFK-W |
It can be used as an air outlet to adjust the direction of the air supply flow. It is usually opened when the air temperature reaches 70 ℃. Under the drive of shape memory alloy or the action of temperature fuse, the valve is closed. |
normally open |
| Fully automatic fire damper |
FHF-WSDcDj-K |
Normally open, when the airflow temperature reaches 70 ℃, the fuse will activate, causing the valve to automatically close. Signal can be activated through DC24V
Quickly close the valve. Manually turn on or reset. After the valve is closed, it can be reset to the open state through a DC24V power supply.
|
normally open |
|
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Smoke exhaust valve series
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| Product name |
Model+Function Code |
Function |
State |
| Smoke exhaust fire damper |
PFHF-WSDc-K |
Normally open, output DC24V power to quickly close the valve. When the airflow temperature reaches 280 ℃, the valve automatically closes. Manually open or reset; The output valve closing signal can be interlocked with other devices. |
normally open |
| Smoke exhaust valve |
PYF-SDc-K |
Normally closed, the DC24V opening signal causes the valve to quickly open.
Manually open or reset; The output valve opening signal can be interlocked with other valves.
|
normally closed |
| Fully automatic smoke exhaust fire damper |
PFHF-WSDcDj-K |
Normally open, when the airflow temperature reaches 280 ℃, the valve will automatically close; Electric shutdown, electric reset; Manual shutdown, manual reset; Output valve closing signal, which can be interlocked with other devices. |
normally open |
| Remote control smoke exhaust valve |
PYF-SDc-YK |
Normally closed, input DC24V power to quickly open the valve. Manually opening or resetting the output valve opening signal can be interlocked with other devices. Remote control (steel rope not exceeding 6 meters). |
normally closed |
| Remote control panel exhaust outlet |
PYK-SDc-YK |
Normally closed, input DC24V power to quickly open the valve. Manually open or close via steel rope at a distance of approximately 6 meters
Valve closing and opening signal
|
normally closed |
|
Multi leaf smoke exhaust outlet
Multi leaf air outlet
|
PYK-WSDc-K
SFk-SDc-K
|
Normally closed, output DC24V power to quickly open the valve. When the airflow temperature reaches 280 ℃ (with no secondary function at the air supply outlet), the valve will automatically close. Manually turn on or reset. Output valve closing signal. |
normally closed |
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Fully automatic multi leaf smoke exhaust outlet
Fully automatic multi blade air supply outlet
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PYK-SWDcDj-K
SFk-SDcDj-K
|
Normally closed, output DC24V power to quickly open the valve. When the airflow temperature reaches 280 ℃ (with no secondary function at the air supply outlet), the valve will automatically close. Manually turn on or reset. Output valve closing signal. |
normally closed |
|
Remote control multi leaf smoke exhaust outlet
Remote control multi blade air supply outlet
|
PYK-SDc-YK
SFK-SDc-YK
|
Normally closed, remotely manually or electrically open the valve, manually reset, and output the valve closing signal. |
normally closed |
|
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Wind volume control valve series
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| Product name |
Model+Function Code |
Function |
| Worm gear manual air volume control valve |
QD-WSF |
In air conditioning and ventilation ducts, the installation of this product can control the air volume by opening and closing the valve blades at different angles. Manual multi blade regulating valves can be installed in square or rectangular cross-sectional air ducts. By driving the angle of multiple blades through a linkage mechanism connected to the handle, the air volume can be controlled to enhance the adjustment effect |
| Manual air volume control valve |
QD-SF |
In air conditioning and ventilation ducts, the installation of this product can control the air volume by opening and closing the valve blades at different angles. Manual multi blade regulating valves can be installed in square or rectangular cross-sectional air ducts. Adjusting the turbine can naturally lock the blades and adjust the ideal angle as desired. |
| Electric air volume control valve |
QD-DF |
The reversible capacitance of the motor is N=1600 revolutions per minute; N=10W. Under normal operating conditions of 220V or 24V, the motor can be powered continuously for 5-10 minutes without damage. It can be interlocked with fans or other equipment. |
| Circular manual air volume control valve |
QD-YSF |
In air conditioning and ventilation ducts, the installation of this product can control the air volume by opening and closing the valve blades at different angles. The circular manual (electric) air volume adjustment method can be installed in circular cross-section air ducts. By driving the angle of multiple blades through a linkage mechanism connected to the handle, the air volume can be controlled to enhance the adjustment effect. |
| Plug-in valve |
QD-XBF |
Installing this product in fans and ventilation air conditioning systems can effectively open and close square ducts. Pulling the handle slide sleeve can slide in the duct. When the plug is opened, the duct is conductive, otherwise the duct is closed. |
| Check valve |
QD-ZH |
Air duct check valves are installed in ventilation or air conditioning ducts. When the fan is running, the valve opens to allow airflow to pass smoothly. When the fan stops running, the valve closes to prevent airflow reversal. |
| Constant air volume valve |
QD-DFL |
Wind direction adjustment: Automatic mechanical mechanism, no external power required. Working temperature: 10-15 ℃. Pressure difference: range 50-10Pa. Installation method: Horizontal or vertical installation. High precision flow regulation, flow range 4:1. There is an external pointer displaying the flow scale, with a scale error of ± 4%. |
| Variable air volume control valve |
QD-BFL |
The direct digital controller (DDC) can be operated and managed in conjunction with a computer (BMS), and can perform variable static pressure control as needed. Through digital networking, operators can monitor the operation of all variable air volume devices and the air conditioning effect of the air conditioning area on the operation terminal, and can control the operation of the variable air volume air conditioning system at any time. |
| Aluminum alloy closed manual air volume control valve |
QD-LHJ |
The manual type can be adjusted in six levels within the range of 0-90 °, while the electric type can stop at any angle. The VD-LM1 model adopts gear rotation and is hidden inside the frame to avoid dust accumulation and damage. The VD-LM2 model can be rotated by a connecting rod and equipped with a connecting rod cover plate to prevent dust accumulation and damage. |
| Proportional integral electric air volume control valve |
QD-TB |
Widely used for on/off control of air valves in HVAC systems, laboratory ventilation systems, and purification and environmental protection ventilation systems; It can also be used in other industrial and mining industries for automatic control systems such as pressure and flow. |
| Residual pressure valve |
QD-YA |
The installation form is wall mounted, and the wall thickness can be adjusted freely within 30-50mm. The position of the heavy hammer can be adjusted according to the requirements of air volume and pressure difference. It has the advantages of flexible rotation, tight closure, adjustable function, and no energy consumption. |
| Combination air valve |
QD-ZF |
Blade starting method: Split type (or forward type). The effective ventilation area is greater than 80%. Leakage rate: Low leakage type ≤ 0.5%, ordinary type ≤ 2%. Drive mode: electric, manual. Installation method: horizontal or vertical installation. |
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FAQ
F:Are you a trading company or a manufacturing factory?
Q:We are both a manufacturer and a trading company. We have our own factory for nearly 15 years, and we provide better services to overseas customers.
F:Can you do OEM production for me?
A:We accept all OEM orders, just contact us and provide your design plan, we will provide you with a reasonable price as soon as possible.
F:How do you ensure product quality?
A:We have TUV/SGS/ISO quality control system and strictly implement it. We have a professional quality inspection team, and each packing worker will conduct a final inspection before packaging according to the quality inspection instructions.
F:Apart from the all-in-one machine, do you have any other conventional fire-fighting equipment?
A:Of course, we have a complete set of professional fire extinguishing equipment, ranging from sound and light alarms to windbreak and smoke exhaust valves, as well as fire extinguishing systems such as FM200, CO2, and Novec1230. We welcome your inquiries!
F:How about the delivery time?
A:According to the minimum order quantity, delivery will be made in 10-15 working days after receiving the deposit. Normally, an order of a 20-foot container takes 30-35 days to complete.
Welcome to inquire about the specific delivery time according to your order quantity!
