SCBA

Operation pressure of Cylinder Mpa

Cylinder volume L

Warning pressure Mpa

Usable time min

Weight kg

Packing dimension cm

30

5

5-6

50

<14

77×30×49

30

6

5-6

60

<15

77×30×49

30

6.8

5-6

60

<10.5

77×30×49

30

2

5-6

20

<4

77×30×49

30

2x6.8

5-6

120

<17

77×30×49

30

9

5-6

90

<11.5

77×30×49

Flame retardancy:

After the flame retardant performance test, the back gear, back strap, buckle and gas cylinder protective sleeve do not appear
melting; Afterburning time: 0.0 s; After the flame retardant performance test of full cover, medium pressure air duct and air
supply valve, the subsequent combustion time is 0.0 seconds; After the flame retardant performance test, the pressure indication
value of the pressure gauge of the whole machine decreases by 0.0mpa within 1min after the air tightness test;

Thermal aging resistance:

After the air tightness test, the pressure indication value of the pressure gauge decreases by 0.0mpa within 1min; After the
pressure test, the medium pressure air duct has no leakage and abnormal deformation;

Wearing weight:

13.3kg

Air tightness of the whole machine:

After the air tightness test, the pressure indication value of the pressure gauge decreases by 0.0mpa within 1min;

Dynamic respiratory resistance:

The pressure of the gas cylinder is 30MPa ~ 2MPa, and the expiratory volume is 40 × At 2.5l/min, the positive pressure is always
maintained in the full hood, ＞ 0; Suction resistance 217pa; Expiratory resistance 660pa; Cylinder pressure 2MPa ~ 1MPa, expiratory
volume 25 × At 2L / min, the positive pressure in the full hood remains > 0; Suction resistance 253pa; Expiratory resistance:
585pa;

High temperature resistance:

After the high temperature test, all parts have no abnormal deformation, adhesion, degumming and other phenomena; Breathe at a
respiratory rate of 40 times / min and a respiratory flow rate of 100L / min, and maintain a positive pressure > 0Pa in the full
mask of the respirator; Expiratory resistance 662pa;

Low temperature resistance:

After the low temperature test, all parts have no cracking, abnormal shrinkage, embrittlement and other phenomena; Breathe at the
respiratory rate of 25 times / min and the respiratory flow of 50L / min, and keep the positive pressure in the full mask of the
respirator > 0Pa; Expiratory resistance 581pa;

Radiant heat resistance:

After the air tightness test, the pressure indication value of the pressure gauge decreases by 0.0mpa within 1min; The pressure of
the gas cylinder is 30MPa ~ 2MPa, and the expiratory volume is 40 × At 2.5l/min, the positive pressure in the full hood shall
always be greater than 0; Suction resistance 193pa; Expiratory resistance 642pa; Static pressure 385pa; And not greater than the
opening pressure of the exhaust valve;

Alarm performance:

The alarm pressure of pneumatic alarm is 5.6mpa; At least the sound intensity of 90dB (a) lasts > 15s; The alarm continues to
alarm until the gas cylinder pressure drops to 1MPa; Average gas consumption: 4.1l/min;

Overall hood performance:

General requirements: meet the requirements of 5.12.1 of XF 124-2013 positive pressure fire air respirator; The total visual field
retention rate was 77.8%; The retention rate of binocular visual field was 65.0%; Lower visual field > 35 °; Lens transmittance
96%; The CO2 content in the inhaled gas is 0.87%;

Performance of pressure reducer:

The output pressure of the pressure reducer is within the design value range of 0.66mpa ~ 0.73mpa; The output pressure adjustment
part of the pressure reducer is provided with a locking device; The output end of the pressure reducer is provided with a safety
valve;

Safety valve performance:

The opening pressure is 157% within the maximum design value of the output pressure of the pressure reducer; The full exhaust
pressure is 164% of the maximum design value of the pressure reducer output pressure; The closing pressure shall not be less than
the maximum design value of the pressure reducer output pressure of 1.16mpa; The air supply valve is equipped with an automatic
positive pressure mechanism;

Pressure head up display device:

General requirements: wireless connection; Do not hinder the wearer's sight and head rotation; Whether the head swings or not, the
wearer can see the working state of the LED; The display mode meets the requirements of 5.17.2 of XF 124-2013 positive pressure
fire air respirator; When the wireless connection is adopted, the pairing between the transmitting device and the display device
is unique; Working time under low voltage condition ＞ 2H; Explosion proof performance shall comply with the provisions of ex iaiic
T3 in GB 3836.1-2010 and GB 3836.4-2010;