Atlas Copco QAS 275-325, Instruction Manual

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Overview of the mechanical
options
The following mechanical options are available:
– Quick couplings
– Integrated spark arrestor
– Air inlet shut-off valve
– Technical specifications
Desciption of the mechanical
options
Quick couplings
The option Quick couplings allows to bypass the
internal fueltank and to connect an external fueltank
to the unit.
Make sure that:
– the big size coupling is used for the inlet.
– the small size coupling is used for the outlet.
Integrated spark arrestor
The integrated spark arrestor option is included in the
refinery equipment pack.
Air inlet shut-off valve
The engine air inlet shut-off valve option is included
in the refinery equipment pack. It will prevent over-
speeding of the engine due to combustible gases
being traced within the normal engine air intake.
EFT External fuel tank connection
EFR External fuel tank return connection
EFT EFR
EFT EFR
An extra clamp needs to be used to
guide the fuellines.