Precisionaire 331Y PA - Manual

76
FOR USE AS AN EXHAUST FILTER
Series 331Y fiberglass media is constructed using 22
grams of fiberglass media per square foot. The fibers
are formed into progressively denser layers. Fiberglass
media is ideal for capturing paint overspray due to its
ability to maintain an open outer layer. It is this initial
outer layer that allows the entire depth of the media to
hold paint particulate and not “surface load” like many
overspray collectors.
The media is solid yellow and has a skin backing on the
downstream side. This skin backing helps prevent the
media from sagging when particulate is captured and
provides a final barrier against small overspray parti-
cles.
Fiberglass media is ideal for users with little or now
storage area. The media has 100% memory when
compressed, therefore the rolls are tightly wound and
the pads are available in vacuum packed boxes.
Fiberglass media comes in pad or roll form. The rolls
are available in 300 foot lengths. The pads come in vir-
tually any size, but 20x20 and 20x25 pads are most
typical in crossdraft and semi-downdraft booths. A grid
is needed to hold the pad which is standard in most
booths. If you downdraft booth uses a pit, measure the
width of the pit to find the appropriate roll, or check our
booth guide. To change the media, simply unwind the
roll to the proper length and cut a pad.
Series 331Y PA
22 Gram Fiberglass Paint Arrestor
0.5
0.4
0.3
0.2
0.1
0.0
Pressure Drop “w
.g.
0 1000 2000 3000 4000 5000 6000
Wt. Paint Fed (g.)
Pressure Drop
0.5
0.4
0.3
0.2
0.1
0.0
Pressure Drop “w
.g.
0 50 100 150 200 250 300
Air Velocity (FPM)
Clean Filter
Paint in grams
0 1000 2000 3000 4000 5000 6000
Wt. Paint Fed (g.)
Penetration
30
25
20
15
10
5
0
Paint in grams
0 1000 2000 3000 4000 5000 6000
Wt. Paint Fed (g.)
% Removal Efficiency
100
95
90