Precisionaire Alpha-HT PB1403 User Manual

Alpha ht, High temperature hepa filters, General

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General

Flanders manufactures metal-frame separator-style
HEPA filters for applications with high-temperature
requirements up to 1,000°F (540°C) for exhaust air
only and 500°F (260°C) for supply air. High-tem-
perature filters are available with either a gasket or
fluid seal. Filters with Blu-Jel

®

Fluid Seal have a

maximum service temperature of 390°F (199°C)

HEPA Filters

Each HEPA filter has a minimum efficiency of
99.97% on 0.30 micrometer size particles when
tested at rated capacity on a Q-107 Penetrometer.
Each filter is challenged with an approved nearly
monodispersed oil aerosol of 0.30 micrometer size
and by measuring the upstream and downstream
concentration of these particles with a light scatter-
ing photometer, the penetration can be determined
and the efficiency can be calculated.

Scan Tested HEPA Filters

Each Scan Tested HEPA filter has a minimum effi-
ciency of 99.99% on 0.30 micrometer particles.
Scan testing is in accordance with Section 6.2 of
IEST-RP-CC034.1, HEPA and ULPA Filters Leak
Tests. In the scan test, the filter is challenged with
a high concentration of an approved oil aerosol or
PSL (Polystyrene Latex Spheres). The media pack
and pack-to-frame seal is scanned using a pho-
tometer or particle counter to insure that there are
no leaks greater than .01% of the upstream con-
centration at 100 fpm face velocity. Scan testing is
only available for the 500°F model.

Sealant Types

Two types of sealants for high-temperature HEPA
filters are offered.

Silicone Sealant

This is a high temperature (RTV) silastic-sealant sil-
icone compound rated for continuous service up to
500°F(260°C). NOTE: This high-temperature
sealant is not UL 586 approved.

Glass Pack Sealant For Exhaust Air Only

The glass pack seal is rated for continuous service
up to 1,000°F(540°C) in exhaust air applications
only. It is a mat of submicron glass fibers that cre-
ates a seal when compressed between the filter
pack and filter frame. The glass packing is not an
adhesive seal but a mechanical seal that functions
much as the glass fiber medium of the filter itself.

NOTE: Due to the possibility that the glass pack
may shed glass fibers, the glass pack sealant
should be used for exhaust systems only.

Alpha HT

High Temperature HEPA Filters

Bulletin PB1403-0107

CFM CAPACITIES AND DIMENSIONS

Alpha HT Filter Dimensions and Capacities

Flanders Filters - Foremost in Air Filtration

Toll Free: 1-800-637-2803

®

F O R E M O S T I N A I R F I L T R A T I O N

Filter Depth

Filter Size and

Actual Face

CFM Capacity at Clean

Weight

(Inches)

Frame Depth

Size (Inches)

Pressure Drop, Inches w.g.

(Lb.)

Designator

.65

1.0

1.35

GG-F

24x24

650

1000

1300

38

GC-F

24x12

300

455

590

26

11-1/2

YY-F`

23-3/8x23-3/8

615

945

1235

37

YU-F

23-3/8x11-3/8

275

425

550

25

GN-F

24x30

830

1275

1655

45

CC-F

12x12

135

205

265

14

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