Wear Method of Breathing Apparatus

Breathing Apparatus is a self-contained open air respirator, air respirator is widely used in fire, chemical, shipbuilding, oil, smelting, warehouses, laboratories, mines and other departments for firefighters or rescue workers in the smoke, gas, steam or Hypoxia and other environments safe and effective for fire fighting, rescue and rescue work.

Check before use
1. Open the air bottle switch, the cylinder storage pressure is generally 25 to 30MPa, with the pipeline, decompression system, the pressure rise, will hear the residual pressure alarm alarm.
2. Close the cylinder valve, observe the pressure gauge reading changes, within 5 min, the pressure gauge reading should not fall more than 2MPa, indicating that the high pressure air tightness. Otherwise, the airtightness of each joint should be checked.
3. through the supply valve lever, gently press the supply valve diaphragm group, so that the slow flow of air in the pipeline, when the pressure dropped to 4 ~ 6MPa, the residual pressure alarm should be issued an alarm sound, and continuous sound When the pressure gauge indicates a value close to zero. Otherwise, it is necessary to re-check the alarm.
4. Whether the pressure gauge is damaged, its connection is firm.
5. Whether the medium pressure pipe aging, with or without cracks, with or without leakage, and its supply valve, quick connector, pressure reducer connection is solid, with or without damage.
6. Whether the supply valve is flexible, whether the missing parts, and the connection of the medium pressure pipe is strong, whether damaged. Whether the supply valve and the exhalation valve are matched. Breath, open the cylinder switch, press the supply valve lever to make it in working condition. In the suction, the supply valve should be gas, there is a clear "sizzling" sound. In the breath or breath, the supply valve to stop the gas, no "sizzling" sound, indicating a good match. If the supply valve is still in the air when the breath or breath is still heard, you can hear the "hissing" sound, indicating that the mismatch, should check the positive air exhalation valve ventilation resistance, or exchange the mask, to meet the matching requirements.
7. Check the full face of the lens, lace, ring seal, exhalation valve, suction valve is intact, whether the missing parts and supply valve connection position is correct, the connection is solid. Full cover of the lens and other parts to be clean, bright and no dirt. Check the full face mask and face fit is good and airtight, by closing the air bottle switch, deep suction several times, the air breathing machine piping system exhaust gas exhausted. Full face to keep negative pressure, under the action of atmospheric pressure cover should be moved to the human face, feeling breathing difficulties, to prove that the full face mask and exhalation valve has a good air tightness.
8. Check the air bottle and pressure reducer connection is strong, airtight type is good. Strap, belt is intact, with or without break.