Filament of cotton, asbestos, rubber or metals like copper can be fed into the interlock to make it pressure tight Interlocked metal hose is also referred to as strip wound hose and consists of successive turns of profiled strip, with the edges of adjacent turns interlocked.
Interlock Hoses are made with a packing so that filament of cotton, asbestos, rubber or metals like copper can be fed into the interlock to make it pressure tight.
It is mostly used as a protective/conduit casing. It is also used as a liner inside the hose based on the profile formation.
TYPES OF LOCKING
Double lock with packing
Square lock with packing
Double Lock Type: This design meets very high standards of tensile and bending strength, Compress and impact resistant against all mechanical stresses. Applications include:
Liner for corrugated metal hose
Dry bulk material handling
Fume and dust collections
Protective cover on metal hose
Square Lock Type: This design withstands negligible requirements. Applications include:
As armour: For telephone & electrical cables, Control instruments & thermo couples, For conveying non penetrating fluids such as tar, naptha, furnace oil
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