Metal Bellows Designs:
high operating temperatures subject your application's ductwork
and components to thermal expansions, these elements begin to
move from their initial positions and become misaligned. A well
designed custom FlexCom
metal expansion joint offers an exceptional degree of
movement compensation, maintaining effective connections under
high levels of operational load and stress.
FlexCom expansion joints
are designed to compensate for four common types of heat-created
● Angular. An angular
movement occurs when one duct flange moves from an initial
straight line position and displaces the joint's longitudinal
axis / centerline, creating an angled alignment between the two
adjacent duct flanges.
● Axial. Axial movements are
compression and extension movements, in which the adjacent duct
flanges move closer or farther away from each other along the
same longitudinal axis.
● Lateral. In a lateral
movement, the two adjacent duct flanges move closer or farther
away from each other, perpendicular to the joint's longitudinal
● Rotational. Rotational
movements involve either clockwise or counterclockwise
rotational movements of the adjacent duct flanges along the
joint's longitudinal axis, creating stress between ducts as one
flange rotates away from the other.
Movement stress is a natural byproduct of thermal expansion,
and so is invariably a major factor in the engineering and long
term reliability of any large scale, high temperature industrial
application. Left inadequately compensated,
movement stress will
damage ductwork and connected components such as fans and pumps,
as well as reduce the overall efficiency of the system and raise
regular operating and maintenance costs.
FlexCom metal bellows are custom designed to provide
superior movement compensation, while providing excellent
vibration isolation, heat and
pressure load tolerance, and long term reliability.
Learn more about FlexCom's
metal bellows designs.
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