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These
straps evenly distribute the drawing force
around the band heater by clamping the
heater tightly around the surface of the
cylinder. This distributed force is transferred
to the internal windings, improving heat
transfer through effective surface contact
and elimination of air gaps
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This
clamping mechanism combines the drawing
quality of an independent strap with ease
of installation. The top sheet is transformed
into a strap by incorporating barrel nut
fasteners at both sides of the gap. Recommended
when holes and cut-outs prevent the usage
of an independent strap.
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This
construction is similar to the built-in
barrel nut style. The fastener section
of an independent strap is spot welded
on the top sheet on both sides of the
gap. This construction allows for a heated
section under the fastener.
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The
most economical fastening style, flange
lock-up is used mostly on narrow heaters
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Partial:
Partial heaters are recommended where obstructions
or complicated holes prevent having complete
coverage on the surface of the barrel |
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Two
piece or more:
Two or more pieces are for ease of installation.
A practical choice when the barrel diameter
is large.
Dia ½"min 36" max
Width ½"min 15" max |
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One
piece:
One-piece construction is used when a
heater can be installed on a barrel without
extensively expanding it.
Dia ½"min 36" max
Width ½"min 15" max |
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One
Piece Flexible:
One-piece flexible heaters are used in applications
where two-piece construction is not practical,
and expanding the heater is necessary during
installation. These heaters should not be
opened more than twice |
