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E. Vent Flame Arrestor
(1)
The vent flame arrestor is installed in a housing attached to the center access door in the surge tank. A vent scoop in the access door just below the housing of the vent flame arrestor supplies venting for the surge tank. The vent flame arrestor acts as a heat sink to keep the fuel vapor below the ignition point. This prevents flame propagation into the surge tank through the vent scoop.
F.
Drain Check Valve
(1)
A drain check valve attaches to the side in the main fuel tank of the tank end rib between the main fuel and surge tanks. The drain check valve permits all fuel in the surge tanks to drain back into the main fuel tanks but prevents fuel from entering the surge tank through the drain check valve.
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FUEL VENT SYSTEM
* SEE THE WDM EQUIPMENT LIST
Fuel Vent System - Component Index
Figure 101
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PRESSURE RELIEF VALVE OF THE
VENT FLAME SURGE TANK
ARRESTOR OF FLOAT-ACTUATED THE SURGE TANK SEE
D SHT 2
SHT 3 SEE
FUEL VENT FLOAT VALVE
SEE
B
VENT FLAME
PRESSURE RELIEF
ARRESTOR OF
VALVE OF THE
THE SURGE TANK
SURGE TANK
SEE
F SHT 3
SEE
SHT 2
Fuel Vent System - Component Location
Figure 102 (Sheet 1)
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FLOAT (REF)
VALVE FLAPPER (REF)
VENT STRINGER (REF)
VENT TUBE
(REF)
FLOAT (REF) FLOAT-ACTUATED VENT VALVE FUEL VENT
A
FLOAT VALVE
FUEL VENT FLOAT VALVE
B
VENT STRINGER (REF)
PRESSURE RELIEF VALVE
FLOAT
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本文链接地址：757 AMM 飞机维护手册 燃油 CHAPTER 28 - FUEL 2(22)
