Nuclear AstroCel I0 pages

Better Air is Our Business

®

Nuclear AstroCel I
®

• ASME AG-1 Qualified
• Listed on U.S. Army Qualified Products List (QPL)
• UL 586 Qualified
• NQA-1 Quality Assurance Program

Design and Construction

Options

The AAF AstroCel I Nuclear Grade HEPA filter is designed to meet
all the requirements of ASME AG-1 and ASME N509 and is available
in Standard and High Capacity flow models.

Qualified options and combinations of materials available include:

AstroCel I Standard and High Capacity Nuclear Grade HEPA Filters
operate on the interception-diffusion principle to remove ultra fine
particles from ventilation and process air using a high media to face
area ratio by limiting air velocity through the media to 5 feet per
minute at rated airflow. The high density filtering media of sub-micron
glass fibers is folded into a closely pleated pack with pleats evenly
spaced by corrugated separators which support the media and allow
minimum resistance to airflow. The media pack is sealed into the filter
case sides with urethane adhesive. The case sides have rigid double
box flanges (#14 Gauge Stainless Steel) or rabbited and double nailed
corners (3/4" Fire-Retardant Plywood) for maximum resistance to
rough handling and distortion.
Neoprene gaskets with interlocking dovetailed corners or a channel
containing silicone gel are provided on one or both (gasket only)
faces for leak free sealing into housings or banks. Faceguards of
4x4 hardware cloth galvanized (standard) or Type 304 stainless
steel (optional) on both faces for media protection and added
protection from racking are provided. These filters are qualified
under UL Standard 586 and are so labeled. Each filter is factory
tested at 100% of rated airflow and at 20% of rated airflow
(125 CFM and larger) and individually labeled and identified with
a unique serial number and test results for penetration and resistance.
The characteristics of the media and construction of the media pack
allow the filter to be installed with airflow in either direction, regardless
of the direction tested.

Case:

#14 Ga. Type 409 Stainless Steel
#14 Ga. Type 304 Stainless Steel
3/4" Fire-Retardant Plywood

Separators:

0.0015" Aluminum
0.0001" Vinyl Coated Aluminum

Gasket:

1/4" x 3/4" Neoprene - Dovetailed Corners
Silicone Gel

Face Guards:

4 x 4 Galvanized Mesh
4 x 4 Type 304 Stainless Steel Mesh

Media:

Qualified to ASME AG-1 and listed on US Army QPL.
Each lot of media individually tested for wet and dry
tensile strength, PSL/PAO penetration, resistance,
and thickness.

Ratings:

25, 50, 125 and 1500 CFM @ 1.3 in. w.g.
500 and 1000 CFM @ 1.0 in. w.g.
Minimum 99.97% efficiency on 0.3 micron DOP

Sizes:

Standard per ASME AG-1
24" x 24" x 11 1/2" Actual
12" x 12" x 5 7/8" Actual
8" x 8" x 5 7/8" Actual
8" x 8" x 3 1/16" Actual
Other sizes available.

Quality
Assurance:

All AAF AstroCel I Nuclear Grade HEPA Filters are
designed, manufactured, and tested under a Nuclear
Quality Assurance Program meeting all requirements
of ASME NQA-1.

Codes:

Filters meet requirements of ASME N509-1989,
ASME AG-1, and DOE 3020.