With
the above considerations about hose performance, it is also important to
understand other application necessities for hydraulic hoses. Because pipes and
tubes are generally more rigid, they can handle higher temperature or internal
pressure in a given application. However, this increased rigidity makes them
much more difficult to use in a moving operation. For instance, a construction
digger requires a hydraulic system to operate a digging tool, but the freedom
of movement needed to operate the tool can place limitations on hydraulic
connections. A hydraulic pipe can allow torque, flexibility and elasticity in
tool arm movement that is unavailable with tubes or pipes.
Additionally,
some hydraulic systems can benefit from combinations of pipes, tubes and hoses.
Large vehicles like airplanes require hydraulics systems to operate wing
movements and landing gear, but the complexity of vehicle geometry necessitates
variation in the hydraulics system.
A
general rule used for hydraulic hose installation is to match the hosing to the
machine contour. This means that a hose should follow machine geometry as much
as possible. If a hose is hanging off of a tool, it can snag or puncture
because of the tool’s wider movement radius. By matching the hose to the tool
or machinery, an operator does not have to consider extra obstacles when using
the equipment.
