CAICE Attenuator

MG - Modular Attenuators
On-site Assembly
The modular concept allows attenuators to be supplied to site in
more manageable sections/modules, with the final assembly
being carried out at the required location.
Each modular section has rails fitted at the base, to aid support
and movement.
The same type of rails are also fitted to the mating faces of
adjacent sections, but these incorporate threaded inserts
(nutserts) ready to accept the required fixings.
Steel brackets are used to join adjacent modular sections,
with M8 countersunk allen screws being driven through the
brackets into the nutserts in the rails.
Examples of Modular Assemblies
The same general assembly methodology applies to all other assemblies whether they be split in width or height. Some examples
are shown below.
Basic Guidelines
The instructions that follow show the example of a four piece modular attenuator, split into two sections in width and two in height,
as this illustrates all of the possible fixing options. For full instructions please refer to the Modular Attenuator Joining Instructions.
1) Join sections in length
Where sections are supplied to site split in length, these must be
joined together first:
1. Lay out and align the sections so that the external rails
on each section are on the correct and matching faces
(1).
2. Ensure that any flat faced splitter elements meet in the
middle, leaving the rounded, ‘bullnose’ faced splitter
elements at each end of the section to be joined (2).
3. Use butyl sealant tape (or other appropriate duct seal),
M10 corner bolt fixings (3) and flange cleats at 400
centres and join sections in accordance with appropriated
ductwork standards.
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CAICE Attenuator Brochure
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