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FILTE S

• Versatile, Self-Seal esign
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• eavy-D uty onstruction
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• igh oisture esitance and urability
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The Glasfloss line of polyester bag filters offers ediu efficiency in a ide range
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of applications. The rigid, self-seal design of these filters helps prevent air bypass
and allow s the filters to operate under adverse conditions, especially w here high
hum idity is present. The Glasfloss Quad 440 features a tw o-stage 100% non-
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FE T R ES > w oven green/ hite polyester edia for axim um efficiency and service life. The
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open fibers on the intake layer catch the larger particles allo ing the finer particles
to be caught by the dense outflow layer. The Glasfloss Quad 420 yellow m edia
is less restrictive to airflow and perform s w ell in m oderate dust loading applica-
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tions. Glasfloss C ube Filters feature the sam e t o-stage polyester m edia found
in the Quad 440 and are available in regular, internal supported and unitized con-
struction. Glasfloss Quad & C ube Filters perform w ell in both variable and con-
stant volum e system s.
Q uad 440 & 420 extended surface air filters shall be
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manufactured of 100% non-w oven polyester. The air 100% O -WOVE N
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entering side shall be a highly lofted, coarse fiber, de- POLYESTE E IA
signed to facilitate the depth loading of dirt particles,
thus acting as an integral prefilter for the more dense
second stage. The air leaving side shall incorporate a
skin backing. The filter shall be manufactured to fit ex-
isting hardw are and shall retain rigidity under varying
air volumes. The outer and center edges of the individ-
ual pockets shall be thermally sealed. The pockets are
se n together and supported by a heavy-duty cross ire,
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w hich insures maximum rigidity and eliminates the pos- <
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sibility of element detachment. There shall be sufficient SPE IFIC A TIO S
media overlap to ensure a positive seal bet een the filter
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and holding frame, eliminating the possibility of air by-
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pass and the need for supplemental gasketing. ll filters
shall incorporate media that is classified under .L. std.
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900. The Q uad 440 shall achieve a M ER 7 rating
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w hen tested in accordance w ith the A N SI/A SH RA E
52.2 Test Standard. I TE N AL WI E
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“Serving ou With Locations Throughout The ation”
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G lasfloss has a policy of uninterrupted research, development and product improvement and reserves the right to change design and specifications ithout notice.
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w w w .glasfloss.com · (214) 741-7056 PR D U CT B LLETI 7 D /CB • SECTI N 7 • 2-26-19
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