Hose Assembly Routing & Installation Tips

Hose assemblies must be installed and routed correctly to extend service life, avoid damage and ensure a safe work environment. Improper installation can result in abrasion, overheating, pressure bursts and more. See the table below for examples of correct (and incorrect) hose installation and routing procedures.

hose-installation-wrong

hose-installation-right  Problem/Solution

 straight-install-wrong

 

 straight-install-right

 

During installation, the hose must be allowed enough slack to account for length changes that may occur under pressure. Hose that is too short may pull loose from its fittings or stress its connections, which may cause premature seal failure.

 

 system-components-wrong

 

 system-components-right

System components must be able to move without creating tension in the hose. Give the hose assembly enough slack  to allow components to move or vibrate. (However, do not give the hose too much slack, as this may increase the risk of rubbing against or snagging on other equipment components.)

 

 enough-slack-wrong

 

twisted-hose-wrong

 enough-slack-right

 

twisted-hose-right

Avoid straining the hose by ensuring that you do not bend it below its minimum bend radius or twist it during installation. Minimum bend radius for each hose can be found in a table on the hose series' product page.

 hose-routing-wrong

 

fitting-selection-wrong

 hose-routing-right

 

fitting-selection-right

Selecting the correct hose fitting plays an important role in the hose installation process. Incorrect fittings can create strain, unnecessary hose length, or multiple threaded joints.

 hose-clamping-wrong

 hose-clamping-right

 

Hose clamps should be used to securely route the hose and avoid surfaces that could cause damage. When using clamps, hose should not be restricted from changing length under pressure - it must be allowed to keep its functionality as a "flexible pipe."

 compound-bend-wrong

 

routing-design-wrong

 compound-bend-right

routing-design-right

Practicality of installation should be considered during the process of hose assembly routing. Routing should be designed to allow access for maintenance in the future.

 

Hose should not be bent in more than one plane. If a hose follows a compound bend, it should be coupled into separate segments that each flex only in one plane.

 

 hose-abrasion-wrong

 

 hose-abrasion-right Hose should not be exposed to abrasive surfaces or edges that will cause wearing or damage to the outer cover. If this cannot be avoided in a given application, a hose with a more abrasion resistant cover should be selected, or a protective sleeve should be used. Parker ToughCover (TC) and SuperTough (ST) covers offer 80 times and 450 times the abrasion resistance of standard rubber covers, respectively.