4.4 Automatic Fuel/Defuel Valve Flashcards
How many components are in the Automatic Fuel/Defuel Valve?
7
The Ejector Strainer Assembly has a mesh monel screen that is rated at what?
60
How many ports are in the Automatic Fuel/Defuel Valve
3
What kind of valve is a direct-acting globe type valve that is spring loaded open?
Pressure Reducing Control Valve
What kind of valve is a direct-acting globe type valve that is spring loaded closed?
Pressure Relief Control Valve
In the Automatic Fuel/Defuel Valve what controls the fuel valve by acting as an eductor?
Ejector Strainer Assembly
Name five tasks of the Automatic Fuel/Defuel Valve.
- ) acts as a fueling valve
- ) acts as a defueling valve
- ) pressure reducer to maintain stable flow
- ) pressure relief valve for pressure extremes
- ) emergency fuel shutoff valve controlled by the nozzle operator
What can be adjusted from 10-100 psi to maintain a constant delivery pressure at the nozzle?
Pressure Reducing Control Valve
What limits flow off of the fuel valve cover chamber to prevent the fuel valve from opening to quickly?
Flow Control Valve
What is the major controlling component of the automatic fuel/defuel valve?
Solenoid Operated Pilot Valve (SOPV)
There are no _____ positions in the SOPV.
closed