6.6 Pipes and Unions✅(6) Flashcards
(68 cards)
What material is generally used for low and medium pressure rigid lines
aluminium alloy
How is the size of rigid tubing determined
outside diameter
The wall thickness of rigid tubing determines what
its strength
What fluid line would be identified by red tape with a star
- Fuel
What is the flare angle of a aircraft fitting
37*
What is the flare angle of a automotive fitting
45*
In a vibration resistant, thin wall tube Harrison flareless fitting, how is the sleeve attached to the tube
It is swaged from the inside
What is commonly used as a repair system for repairing hydraulic lines on aircraft
swaging fittings (permaswage)
Medium pressure hoses have a seamless inner liner with what
a reinforcement of 1 layer of cotton braid and 1 layer of stainless steel
What flexible tube liner is the best to carry petroleum based products
Buna-N
What are metal tubing also referred as?
Rigid fluid lines
What are flexible hoses made out of
Synthetic compounds
Where are rigid tubing used?
- stationary applications
- relative,y straight
Where are flexible hoses generally used
- vibration areas
Steel fluid lines are increasingly being used as what?
Pressure fluid lines
Pressure over 1500PSI is ?
High pressure lines
Pressure under 1500PSI is
Medium pressure lines
Suction and return lines are
Low pressure lines
What are medium and low pressure fluid lines preferably made of?
Aluminium alloys for weight saving
In crucial areas what must the pressure lines be made out of
Steel
The size of rigid tubing is determined by ?
Outside diameter
What are the size increments of rigid tubing
1/8inch (3.16mm)
What does the wall thickness of a tube determine
It’s strength
All pipes are marked with a part number, drawing number, inspection stamp, test stamp, date of manufacture (T OR F)
T
