This type of movement occurs when hoses are bent in a 180°
arc such as in vertical or horizontal traveling loops. Traveling
loops are classified as Class "A" where the bend radius
remains constant and the one end of the hose moves parallel to the
A Class "B"
traveling loop has the hose installed in a U-shaped configuration
and the ends move perpendicular to each other so as to enlarge or
decrease the width of the loop.
loops must have the bottom leg of the hose supported to avoid
undue stress on the end of the hose. The weight of the hose and
media inside the hose will reduce the pressure capability of the
hose. Weight loads should be considered when engineering corrugated
metal hose assemblies for travelling loop applications.