Interlocked hose is used for
specialized industrial applications and is available in different metals,
sizes, and styles. Interlock is a term used with flexible metal hose meaning
the hose winding is mechanically locked together and cannot come apart
unless the metal is yielded. Adjacent edges are folded together to form
the interlocked convolutions. To make the hose pressure tight or to minimize
leakage, a packing material may be inserted into the preformed groove within
the interlock. The packing acts as a gasket seal along the entire length
of the hose. Interlocked metal hose is extremely flexible and light weight.
The sliding action that the hose makes is what provides the flexibility.
When the convolutions on the outside of the hose are fully open, and the
convolutions on the inside are fully closed, the minimum bend radius is
achieved. Should the hose be forced upon its limits, it will deform permanently.
Pressure tight hose is significantly less flexible because the packing
material produces a greater resistance to the sliding action. |
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Smooth bore interlocked
hose
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Rough bore interlocked
hose
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