CCC certified fire damper FHF WSDc FK

1、 Product Definition

Installed on the supply and return air ducts of ventilation and air conditioning systems, it is usually in an open state. In the event of a fire, when the temperature of the smoke inside the ducts reaches70A valve that closes at ℃ and can meet the requirements of smoke leakage and fire resistance integrity within a certain period of time, serving as a smoke and fire barrier.

Fire dampers are generally composed of components such as valve bodies, blades, actuators, and temperature sensors.

2、 Model Description

FHF①-②-A×B A: Valve nominal widthB: Valve nominal height

① - Product control methodWTemperature sensor controls automatic shutdownSManual control to close

DcElectric control electromagnet is turned offDjElectric motor turned off

Dq ：Electric control pneumatic mechanism closed

② Product Function CodeF: Equipped with air volume adjustment functionY: Equipped with remote reset function

K: It has a position signal feedback function after the valve is opened and closed in place

For example:

FHF-WSDc-FK-630╳400Indicating the presence of a temperature sensor（70Automatic shutdown (℃), manual shutdown, electrically controlled electromagnetic shutdown, with air volume adjustment function and signal feedback function after the valve is closed in place.

3、 Product Features

1 Low leakage rate and good air tightness performance;

2 Strong anti-corrosion performance and long service life;

3 The valve opens and closes flexibly, and the position feedback signal is accurate;

4 Good fire resistance integrity.

4、 Performance parameters

1 Nominal pressure: ≤ at ambient temperature300Pa；

2 Applicable medium: air (smoke);

3 Leakage rate:aUnder ambient temperature, the pressure difference before and after the valve blade300±15PaStatic pressure,Leakage per unit area ≤500m³/(m²)；

bIn accordance with the regulations on fire resistance（GB/T15930）During the time, the valve blades are located in front and behind300±15paStatic pressure,Leakage per unit area ≤700m³/(m²)；

4 Fire resistance time: ≥1.5h ( GB/T15930）.

5、 Fire damper appearance

6、 Specification and size of fire damper

Combination valve is a valve combination that has obtained the fire 3C certificate, and the combined valve meets the ventilation area (interface requirements);

When placing an order for a combination valve, the installation method of the valve (pipeline type, wall type, or other) must be informed;

In order to maintain consistency with the installation dimensions of the user, the company's products will not drill holes on the flange unless otherwise specified by the user.