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Fire Respirators (10)

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Fire breathing apparatus is also called air breathing apparatus and fire air breathing apparatus. It is a positive pressure air breathing apparatus.
Fire breathing apparatus is a self-contained open air breathing apparatus, which is widely used in fire fighting, chemical industry, shipbuilding, petroleum, smelting, warehouses, laboratories, mining and other departments, for firefighters or rescuers in heavy smoke, poisonous gas, steam Fire extinguishing, emergency rescue and rescue work can be carried out safely and effectively in various environments such as hypoxia or hypoxia.
The fire breathing apparatus is equipped with a full face mask with wide vision, bright and good airtightness. The air supply device is equipped with a new type of air supply valve that is small in size, light in weight and stable in performance; high-strength backplane and high-quality high-pressure with high safety factor are selected Gas cylinder: The pressure reducing valve device is equipped with a residual gas alarm, which can send an audible signal to the wearer within the specified gas cylinder pressure range to remind the user to evacuate the scene in time.
Features of fire breathing apparatus:

Among similar products, fire breathing apparatus has the advantages of light weight, small size, use; convenient maintenance, comfortable wearing, and stable performance. It is an ideal personal respiratory protection device for emergency rescue and fire fighting operations.
The fire breathing apparatus has passed the inspection of the National Fire Equipment Quality Supervision and Inspection Center and meets the requirements of GA124-2004 <<Positive pressure fire air breathing apparatus>>.
Names of parts of fire breathing apparatus:

1. Face mask 2. Gas cylinder 3. Bottle belt set 4. Shoulder strap 5. Alarm whistle 6. Pressure gauge 7. Gas cylinder valve 8. Pressure reducer 9. Back support 10. Waist belt set 11. Quick connector 12. Supply valve

The characteristics of each component of the fire breathing apparatus are introduced:

Mask: It is a large field of vision window. The lens of the window is made of polycarbonate, which has high transparency, strong abrasion resistance, and anti-fog function. The mesh hood style is comfortable and convenient to wear. The colloid is made of silica gel, non-toxic , Odorless, non-stimulating, good airtight performance.
Cylinder: It is an aluminum-lined carbon fiber fully wound composite gas cylinder with a working pressure of 30 MPa, light weight, high strength, and good safety performance. The cylinder valve has a high-pressure safety protection device.
Bottle belt group: The bottle belt card is a fast cam locking mechanism, and ensures that the bottle belt is always in a closed loop state. The cylinder will not turn over.
Shoulder strap: made of flame-retardant polyester fabric, the strap adopts a double-sided adjustable structure to make the weight fall on the waist and hip area, reduce the pressure of the shoulder strap on the chest, and make breathing smooth. And there is a wide elastic pad on the shoulder strap to reduce the pressure on the shoulder.
Alarm whistle: placed on the chest, the alarm sound is easy to distinguish, small in size and light in weight.
Pressure gauge: large dial, with night vision function, equipped with a rubber protective cover.
Cylinder valve: It has a high-pressure safety device with a small opening torque.
Pressure reducer: small size, large flow, stable output pressure.
Back support: The design of the back support conforms to the ergonomic principle. It is injection molded from carbon fiber composite material. It has flame retardant and anti-static functions. It is light and strong. The inner side of the back support is lined with elastic cushions to make the wearer comfortable.
Waistband set: buckle lock, easy to adjust.
Quick connector: small, can be operated by one hand, with locking and anti-drop function.
Supply valve: simple structure, strong functionality, large output flow, bypass output, and small size.

Fire-fighting air respirators belong to the category of air respirators, and are also called fire-fighting respirators or positive pressure fire-fighting air respirators in the industry. As one of the important firefighters’ equipment, fire-fighting air respirators can help firefighters or rescuers to safely carry out fire-fighting, rescue and rescue work in harsh environments full of dense smoke, poisonous gas, steam or hypoxia, and effective protection Rescuers' breathing is not endangered.

Operation steps of fire air breathing apparatus
 
1. When wearing a fire-fighting air respirator, first disconnect the full face mask (to prevent damage to the full face mask while wearing), then put the back support on the back of the human body (the air bottle switch is below), and adjust the shoulder straps according to the body shape. The belt is fastened tightly to fit, secure and comfortable.
 
  2. Put the long strap on the full face mask of the fire air respirator around your neck, put the full face mask on your chest before use, so that you can wear it with you, and then connect the quick connector.
 
  3. Put the switch of the supply valve in the closed position and turn on the switch of the fire-fighting air respirator.
 
  4. Wear a full face mask (without straps) and take 2 to 3 deep breaths. You should feel comfortable. When holding or exhaling, the supply valve should stop supplying air without a "sizzling" sound. Press the lever of the supply valve by hand to check whether it opens or closes flexibly. Linghe Labor Insurance Network reminds everyone that when everything is normal, tighten the full-face mask straps to ensure air tightness and comfort without obvious tenderness.
 
   5. After evacuating the scene and arriving at a safe place, loosen the strap clip of the full face mask of the fire air respirator and take off the full face mask.
 
   6. Turn off the gas cylinder switch, open the supply valve, unplug the quick connector, and remove the fire-fighting air breathing apparatus from the body.
 
   Precautions for the use of fire-fighting air breathing apparatus
 
   1. First of all, whether the appearance of the fire-fighting air respirator is intact. Ensure that the mask and back support of the fire-fighting air respirator are deformed and aging, and whether the various accessories are complete. Check whether the air ducts, connectors, air supply valves, pressure reducing valves, alarms and pressure gauges of the air breathing apparatus can be used normally. Make sure that the manufacturing marks and inspection marks of the gas cylinder and the gas cylinder valve are clear and the surface is not damaged.
 
  2. Secondly, the performance test of fire air breathing apparatus. Open the gas cylinder valve and you will hear a short buzzing sound from the alarm; after the gas cylinder valve is fully opened, check the gas storage pressure of the gas cylinder, which is generally 28-30 MPa, then close the gas cylinder valve and observe the reading of the pressure gauge. Within 1 minute, the pressure drop is not more than 2MPa, indicating that the air supply pipe system is high-pressure and airtight.
 
3. When the cylinder pressure is not less than 90% of the nominal pressure, wear a face mask to check whether the full face mask fits well with the wearer's face, take 2-3 deep breaths, and feel the air supply is comfortable, and the air supply valve should stop when holding your breath Supply air; then press the switch of the supply valve with your hand to make it open or closed, and everything is normal before it can be used.
 
   The above is the introduction about the "operation steps and precautions for fire air respirators" provided by the editor of Yanhe Labor Insurance Net. I hope it will be helpful for you to understand fire air respirators! The fire-fighting air respirator must be cleaned and inspected for storage after each use. If any damaged parts are found, they should be marked and be careful not to use them again.

fire fighting respirators:

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