6.6 Pipes and Unions Flashcards
What does a rigid fluid line consist of?
Tube and tube fittings
How are rigid lines dimensions determined?
External diameter in 1/8 inch increments and the wall thickness.
What pressure is a HP line?
1500psi
What information is printed on the pipe?
Part number
Drawing number
Inspection stamp
Test stamp
Date of manufacture
On small pipes where there is not enough surface to stamp, how is the material identified?
Colour coded.
If a small pipe is colour coded white what material is it?
1100
If a small pipe is colour coded Red what material is it?
2024
Where are identification tapes, decals, plaques etc required?
Each end of the pipe and near any valves, regulators or filters.
On a flared connection what does the floating sleeve do?
Adds strength and support, and stops vibration concentrating at the flare.
What is the flare angle in aircraft?
37 degrees
What two types of flare are there?
Single and double
What type of pipe is needed to be able to double flare?
Soft ally tubing with outside diameter of 3/8 or smaller.
What types of flared fitting specification are there?
AN and AC
What is the difference between an AC and AN flared fitting?
AN has a shoulder between the threads and flare cone.
What colour are An steel fittings?
Black
