Recharging a positive-pressure air respirator?
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At what pressure below MPA should a positive-pressure air respirator be filled, and with what gas? Which outlet should I use to charge?
Don’t the suppliers who sell equipment provide this service? The suppliers trained previously were responsible for refilling.
For compressed air, we have our own equipment here. Replace it when it reaches the alarm value, or when it is approaching the alarm value.
Compressed air. Send it, along with the pressure-deficient fire extinguisher, to the safety inspection department for refilling.
Ours are all charged at the fire station in the park
Charge compressed air at a pressure of no less than 30 MPa; this is specified in the instructions. It costs 100 yuan per unit to have it done by a fire protection maintenance service~~
Below 24 MPa, the gas filled is compressed air; we have our own filling station at the factory, which is under the management of the fire department.
30MPA, air, mostly in fire departments
An alarm is triggered when it drops below 5 MPa. The fire department has filling equipment.