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How To Use
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Hose Assembly High
ambient temperatures shorten hose life so make sure hose is
kept away from hot parts. if this is not possible, insulate
hose. |
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Elbows and adapters should be used to relieve
strain on the assembly, and to provide neater installations
which will be more accessible for inspection and maintenance |
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To avoid hose collapse and flow
restriction, keep bend radii as large as possible. refer to
hose specification tables for minimum bend radii.
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Run Hose in the installation so that it avoids
runing and abrasion. Often, clamps are required to support
long hose runs or to keep hose away from moving parts.Use
clamps of the correct size. A clamptoo large allows hose to
move inside the clamp and causes abrasion. |
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When installing hose, make sure it is not
twisted. Pressure applied to a twisted hose can result
failure or loosening of connections |
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Proper hose installation is
essential for satisfactory performance. If hose length is
excessive, the appearance of the installation will be
unsatisfactory and unnecessary cost of equipment will be
involved. If hose assembly is too short to permit adequate
flexing and changes in length due to expansion or contraction,
hose service life will be reduced.
The following diagram show
proper hose installations which provide maximum performance and
cost savings. Consider these examples in determining length of a
specific assembly. |
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When hose
installation is straight, allow enough slack in hose line to
provide for length changes which will occur when pressure is
applied.
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Adequate hose length is
necessary to distribute movement on flexing application and
to avoid abrasion.
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Avoid twisting of hose lines bent in two planes by clamping
hose at change of plane |
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Reduce number of pipe thread joints by
using proper hydraulic adapters instead of pipe fittings.
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When radius is below
the required minimum, use an angle adaptor to avoid sharp
bends.
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Use proper angle adapters to avoid sharp twist or bend in
hose |
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Prevent twisting and distortion by bending hose in same
plane as the motion of the boss to which hose is connected |
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Route hose directly by
using 45 degree and/ or 90 degree adapters and fittings.
Avoid excessive hose length to improve appearance.
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To allow for length
changes when hose is pressurized do not clamp at ends so
that curves will absorb changes. Do not clamp high and low
pressure lines together.
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