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10
SAFIR 5L
OPERATION AND ATTENDANCE MANUAL
PG 01-31
Air System
Carakteristic
Air parameters behind anti-stall bleed valve at 100 %
speed mode (for ISA, H=0m)
Output
-
air flow
≥
1920 kg.h
-1
-
air presure
≥
348 kPa
-
warming of the air in the compressor
-
air inlet temperature
190
С
(374
F)
-60 ÷ +60
С
(-75.982 °F ÷ +140,018 °F)
Venturi
tube:
-
purpose
33 mm
APU protection
(part of the anti-stall bleed valve, restricting the air
quantity from the compressor and protect turbine
overheating)
Anti-surge
valve
490330.03
-
closing initiation at the Venturi tube over-pressure
of
55±5
kP
а
-
opening initiation at the Venturi tube over-pressure
of
70±5
kP
а
visor in the output throat of the anti-stall bleed valve
27 mm