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Clean Filter Resistance(“w.g)
Clean Filter Filter Resistance(inchw.g)
23-5/8
47-5/8
PF†-493-2424-*
PF†-493-2448-*
PF†-591-2424-*
PF†-591-2448-*
23-5/8
47-5/8
Physical Data Notes:
1. *Insert suffix 10 (nominal 10”collar) or 12 (nominal 12” collar).
Add “G” to suffix to designate the insulation option.
2. Tolerances: L and W: +0, -1/8” D: + - 1/8”
3. Maximum operating conditions: 200 ° F, 100%RH
4. Modules are designed to UL 900 Class 2 requirements.
5. Installed weight: PF53P F70P F100
2424: 20lbs. 25lbs. 27lbs.
2448: 35lbs. 40lbs. 43lbs.
6. D = 5 3/4” (PF 53)
D = 7 3/4” (PF 70, PF 100)
H = D + 2”
1.0 General
1.1 Terminal filter HEPA/ULPA Modules shall be
Pureflo Model PF as manufactured by Flanders
and shall be scan tested for leaks after assem-
bly.
1.2 Module sizes, filter pack depth, efficiencies and
capacities shall be as scheduled on the draw-
ings.
2.0 Module Construction
2.1 The module filter pack shall be constructed of
water-laid microfine fiberglass media containing
a water-repellent binder. The media shall be
formed into closely - spaced pleats held in posi-
tion by adhesive bead separators.
2.2 The filter pack shall be polyurethane-sealed into
aclear coat - anodized extruded aluminum
frame and rectangular tube section center
divider.
2.3 Module top/inlet collar shall be one-piece alu-
minum.
2.4 The protective face grille shall be 20 ga. expand-
ed steel finished in white powder coat paint.
2.5 Provide an airflow damper adjustable from the
room side and accessible through a port with a
removable plug located in the center divider.
2.6 Provide a separate port in the center divider that
is open to the inlet side of the filter for measure-
ment of static pressure and challenge aerosol
concentration. The port shall be fitted with a
removable plug.
3.0 Performance
3.1 Initial and final resistances shall not exceed the
scheduled values.
3.2 The airflow damper shall be capable of regulat-
ing the module face velocity from 70 fpm to 110
fpm.
3.3 Performance shall meet the requirements of
IEST RP - 1 for Type C or F filters.
Guide Specifications
Model Number
Particle
Size
Efficiency
%
99.99 on
0.30 µm
99.9995 on
0.12 µm
Cfm Capacity at Gross Face Velocity, Fpm
PF53 PF70 PF100
70
280
560
.40
280
560
.55
90
360
720
.50
360
720
.70
110
440
880
.60
440
880
.85
70
280
560
.33
280
560
.45
90
360
720
.42
360
720
.58
110
440
880
.50
440
880
.70
70
280
560
.23
280
560
.33
90
360
720
.30
360
720
.42
110
440
880
.37
440
880
.50
Actual Length
L (inches)
† Insert filter pack depth in mm: 53, 70, or 100
the filter and hvac store