METAL HOSE INSTALLATION GUIDE
Use the proper "Live Length"
Live length is the measurement of the actual flexible portion of the hose assembly. Different fittings
differ in length, which affects the Live Length in relation to the Overall Length of the assembly. Live
Length is an important aspect of hose specification particularly in hose installations which require a
sharp degree of bend or repetitive flexing. Never attempt to stretch or compress a hose assembly
External abrasion or constant rubbing will damage the braid reinforcement thereby weakening the
hoses very pressure retention. Hose assemblies with visibly damaged braid, including broken wire,
should be replaced immediately! If your installation requires a degree of abrasion (confined space,
dragging on the floor, etc.) we STRONGLY reccomend a choice of external protective cover (PVC, Rubber,
Proper storage also adds significantly to the life of a hose assembly. The assembly should be
properly supported so that it never exceeds bend radius. Hoses should not be stored in areas of
possible corrosion attack or chemical spills. There should never be anything placed on top of a hose
assembly, while in storage or in use.
Never Use The Hose Assembly To Support Weight
The hose assembly should never be used to support the weight of valves or piping. Pipe should be
properly supported with anchors.
Clean hose assemblies after each use
Flushing and rinsing hose assemblies after each use goes a long way towards a long hose life.
Proper cleaning removes corrosive materials and residual product which can attack the hose inner core.
Never, never, torque a hose assembly
Hose assemblies are not designed to withstand twisting or torsional forces. Torque can occur upon
installation or when the hose is in use, through out of plane flexing.
When installing a metal hose, always use two wrenches, one to hold the hose to prevent it from
twisting and the other to tighten the fitting. Always make sure that movement remains in the same
plane as hose installation. Always use the proper hose length. Hose assemblies that are measured short can exceed bend radius casuing stress and premature failure. If a bend is too sharp, use elbows.