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Hoses and Tubing Product Details

Interlocked Metal Hose

Manufacturer: Flextrol


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.

Product Types:

  • The image below shows a cut-away of smooth bore metal interlocked hose with packing in place.

  • The image below shows a cut-away of rough bore metal interlocked hose with and without  packing in place.

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