Demand Valve
FENAN - Professional fire fighting equipment manufacturer and supplier engaged in R＆D, production, sale and service of various breathing apparatus.
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FENAN - Professional fire fighting equipment manufacturer and supplier engaged in R＆D, production, sale and service of various breathing apparatus.
The air supply valve is a crucial component of a Self-Contained Breathing Apparatus (SCBA). It is responsible for delivering compressed air from the high-pressure cylinder to the user’s facepiece after pressure reduction, ensuring a stable breathing air supply. The air supply valve typically features an automatic demand function, adjusting airflow based on the user’s breathing requirements to provide efficient and comfortable air delivery.
The diaphragm inside the air supply valve delivers air according to the actual breathing needs of the user, ensuring that the pressure inside the mask is always greater than the external working environment pressure. The square manual shut-off button on the front of the air supply valve allows manual closure of the valve to stop the air supply. During inhalation, the valve is automatically opened by the suction force.
At the center of the bottom of the air supply valve is a round manual forced air supply button. First, if the button is not opened by suction, pressing it manually will initiate automatic air supply. Second, if the wearer feels insufficient air supply, pressing this button will automatically increase the air supply.
Additionally, it can release the residual pressure in the medium-pressure tube, making it convenient for testing and disassembling the quick connector.
1. Operation Button
The air supply valve switch button: Pressing the button stops the air supply. The manual shut-off has low resistance, and the opening force is minimal.
2. Exhaust Button
When the cylinder valve is closed, pressing the button releases residual gas from the pipeline. When the cylinder valve is open, pressing the button manually forces air supply.
3. Mask Air Supply Port Connection
Connecting to the mask air supply port is safe and convenient.
4. Quick Male Connector
Quickly connects to the medium-pressure tube of the pressure reducer.
A. Connecting the mask air supply plug is safe and convenient.
B. The streamlined housing is aesthetically pleasing and elegant.
C. The manual shut-off valve has low resistance and requires minimal force to open.
D. Medium-pressure intake tube.
E. The manual forced air supply button ensures safe air supply.
▶ Maximum supply flow rate is higher than 500L/min, keeping a positive pressure in the mask.
▶ The intake gauze can make breathing safer
▶ 360 degrees quick joint, supplies the air fast and automatically.
▶ Valve has an emergency gas supply button, throttle-switch and automatic suction structure to extend the usage time of the cylinder.
▶ Hand-held, small and light, good down vision.
▶ The whole blue rubber bumpers keeping scratch and drop resistance.
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