9.
What
Physical Environment
Will the Hose Be In?
Hoses need protection against external heat sources,
abrasions from dragging, vibrations, and rubbing
against equipment frames. Some hoses are
surrounded by springs that help protect against
falling objects, while others have plastic rings
around them to protect them when they rub
against other objects. Other products, such as
plastic sleeves and steel encasements, help protect
hoses from rubbing damage.
Rubber hoses near heat sources (such as engines)
can prematurely break down. In some cases,
a thicker hose may be enough to protect it from
the heat of the engine. Other options to avoid
heat include placing an old hose as a sleeve over
a working hose to take the brunt of the heat
from the engine; rerouting hoses away from
heat sources; and installing steel heat shields
that will not impair equipment operation.
A number of devices can help protect hoses against abrasion.
The hose on the ground (below) is rubbing against stone
and has no protection.
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