Rubber hydraulic hose and ... - Flipbook - Seite 308
Safety information | Danfoss
Hose selection
Hose routing and installation
1. Provide for length change.
5. Use proper bend radius.
In straight hose installations, allow enough slack in the hose line to
provide for changes in length that will occur when pressure is applied.
This change in length can be from +2% to -4%.
Keep the bend radius of the hose as large as possible to avoid collapsing
of the hose and restriction of flow. Follow catalog specs on minimum
bend radii.
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2. Avoid twisting and orient properly.
Do not twist hose during installation. This can be determined by the
printed layline on the hose. Pressure applied to a twisted hose can cause
hose failure or loosening of connections.
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6. Use proper bend radius (cont’d).
Minimum bend radius is measured on the inside bend of the hose.
To determine minimum bend, divide the total distance between ends
(B length) by 2. For example, B=6, minimum bend radius=3.
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3. Protect from hazardous environment.
7. Secure for protection.
Keep hose away from hot parts. High ambient temperature will shorten
hose life. If you can not route it away from the heat source, insulate it.
(See Spring Guards page 250)
Install hose runs to avoid rubbing or abrasion. Use Aeroquip Hose Clamps
to support long runs of hose or to keep hose away from moving parts. It
is important that the clamps not allow the hose to move. This movement
will cause abrasion and premature hose failure. (See Hose Clamps in the
Accessories section)
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4. Avoid mechanical strain.
Use elbows and adapters in the installation to relieve strain on the
assembly and to provide easier and neater installations that are
accessible for inspection and maintenance.
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8. Avoid improper hose movement.
Make sure relative motion of the machine components produces bending
rather than twisting of the hose. Hose should be routed so that the flex is in
the same plane as the equipment movement.
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Refer to safety information regarding hose installation on page 336.
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EMEA Danfoss rubber hydraulic hose, fitting, tooling and accessories category catalog
