8K D3 1January 2005Fuel Line ASSYFunctional RequirementsTL 822 53Konzernnorm4 Types: A, B, C, DDescriptors:fuel line ASSY, line, feed line, fuel lineDPrefaceIt has become necessary to change the type designations as follows due to systems engineering considerations
Type A1 to A Type A2 to B Type B1 to C Type B2 to DChangesThe following changes have been made as compared to Technical Supply Specification TL 822 53, 1998-03:—Editorial changes—Type designation changed (see Preface section)Previous issues1990-07; 1996-05; 1998-031ScopeThis standard defines requirements for fuel line ASSYs
There are four types of fuel lines:Type A and B:Fuellineswithapermissiblelimittemperatureof Tmax
> 90 °C
Type APressurizedType BUnpressurizedType C and D:Fuellineswithapermissiblelimittemperature