Fluid lines Flashcards
For hydraulic systems in which a pressure of —– psi will be
exceeded, corrosion-resistant ——– or—-
tubing is often used.
1500 psi, Stainless steel, Titanium
In other parts of the system, such as the return lines and the
pump supply line, ———- tubing is used.
Aluminum Alloy
Metal tubing installed in hydraulic systems should be free from
——————–, or any other defect, which
will either limit the flow of fluid or lead eventually to tube
failure.
Scratches, dents, nicks, Wrinkles
It must be remembered that hydraulic fluid under high
pressure can cause considerable injury or damage if suddenly
released through the failure of a tube or fitting.
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Certain tolerances are permitted to allow for very minor
defects in tubing.
True
The most commonly used fittings are the standard
An Type fittings, Flare less Fittings.
s are assemblies for joining sections of tubing in a system and to hydraulic accessories.
Tube Fittings
is used for flared tubing and must include a body, sleeve, and nut for the complete
assembly.
An fitting
is used for flared tubing and must include a ————- for the complete assembly.
Body, Sleeve, Nut
The fitting itself is designed in a number of different shapes to provide for a variety of installations.
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example of fittings?
Straight Fittings, T fittings, Elbow Fittings, Cross fittings
When flare fittings are to be used, the tubing should be flared with a tool designed for the purpose.
The standard angle for the flare is
37 Degrees
pressed tightly against the flare cone by means of the sleeve and the nut.
Tube flare
g are finding wide application in aircraft plumbing
systems.
(MS) Military Standard Flareless Tube Fitting
from the diagram right to left what is in order?
Nut, Sleeve, Flared Tube, 37Degree Flare Body.
Using this type fitting eliminates all tube flaring, yet provides a safe, strong, dependable tube
connection
(MS) Military Standard Flareless Tube Fitting
The (MS) Military Standard Flareless Tube Fitting consists of three parts:
Fitting, Sleeve, Nut
For portions of a hydraulic system between parts of
the airplane where there is relative movement and
possible vibration,——— is required
Flexible hose
is widely used because of its superior
qualities.
Teflon hose
When exposed to high pressure and temperature,
Teflon tends to assume a ———
Permanent set, Type of hose deformation
When a Teflon hose is removed with the intention of
re- installing it, support the hose in its installed shape.
This may require using a ———-
Support Wire
are used to secure the various lines to the
airframe or power plant assemblies.
Support Clamp
is used to secure lines subject to
vibration; the cushioning prevents chafing of the tubing.
Rubber Cushioned Clamp
are the most commonly used
clamps.
Rubber Cushioned and plain
