Nuclear Grade Hepa Pb2016

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Nuclear Grade

HEPA FiltersPB-2016-0907

A Wholly Owned Subsidiary of Flanders Corporation

Nuclea Gade HEPA FiltesSquare, Rectangular, Round and Nipple-Connected

Filters Constructed and Tested in Accordance with

• ASME AG-1

• IEST-RP-CC001.4 Type B• MIL-STD-282

• DOE-STD-3020-2005

Flandes Filtes, Inc.



Quality Assurance Program

© COPYRIGHT 2007 By

Flanders/FFI Corporation

531 Flanders FIlters Road • Washington, NC 27889

Quaity Assuance

Any industry with dangerous process or exhaust

gases and/or particulates has a vital concernfor the health and safety of personnel. In ad-

dition to corporate concern, the United States

Government has dictated that safety equipment

meets minimum safety standards. Any equipment

sold to meet these minimum standards must be

manufactured using accepted Quality Control

procedures.

Flanders has developed a Quality Assurance

program to assure the product or service meets

these standards. This program addresses the en-

tire range of Flanders involvement, including thepurchase of raw materials, the shortage of these

raw materials, incorporation of these materials

into a product or service, testing this product or

service, then, shipping to its destination.

The Flanders Program has been audited many

times, and each time the program has been ac-

cepted. An uncontrolled copy of the program

manual is available with each request for Quality

Assurance information. Like any dynamic docu-

ment, the manual is continually being revised to

include recent issues of standards and specica-

tions in order that Flanders may use the latest

state-of-the-art methods in providing its products

and services.

The Quality Assurance Program at Flanders Filters

has been audited and approved numerous timesby the Nuclear Utilities Procurement and Inspec-

tion Committee, NUPIC. This committee was

established by nuclear electric utilities to ensure

that suppliers of goods and services meet all ap-

plicable regulatory and quality requirements.

Notes:

1. As part of our continuing program to improve

the design and quality of all our products, we

reserve the right to make such changes without

notice or obligation.

2. Flanders, through its limited warranty, guaran-

tees the products described herein will meet all

specications agreed to by the buyer and the

seller.

3. ASME N509 Nuclear Power Plant Air Cleaning

Units and Components.

4. ASME N510 Testing of Nuclear Air Treatment

Systems.

5. ASME AG-1 Code on Nuclear Air and Gas

Treatment



3

Nuclear Grade HEPA Filters

NOTICE . . . Comiance with instaation and oeation

standads must be met to ensue quaity efomance.

HEPA filters are factory tested to meet the

requirements of IEST-RP-CC001.4 filters

Test results appear on both the filter label

and the filter carton label. An additional

quality assurance test report is kept on

file and is available on request.

Flanders Filters, Inc. (FFI) recommends

that all HEPA filters be tested in place by

qualified personnel to ensure that the fil-ters have been correctly installed in the

containment housing.

Flanders/FFI service personnel are avail-

able for installations, supervision of in-

stallation, testing and certification of

compliance to industry and government

standards and instruction of the owner’s

personnel in testing and maintenance

procedures.

Flanders/FFI does not guarantee that

its equipment will operate at the per-

formance levels given on the identfica-

tion labels or in the catalog specfica-

tions under all conditions of installation

and use, nor does Flanders/FFI guar-

antee the suitability of its product for

the particular end use which may be

contemplated by the buyer.

For best results, it is recommendedthat the buyer supply complete infor-

mation about the operating conditions

of the ventilation system to Flanders/

FFI for evaluation.

When the system components are

supplied to the buyer or his agent for

final installation and assembly in the

field, it should be under the supervi-

sion of factory trained personnel.

Failure to adhere to this recommenda-tion or failure of the buyer to have fil-

ters timely retested and serviced will

nullify or limit any warranties which

might otherwise apply and may result

in a compromised installation.

I MP O

RT A NT

ME S S A GE



4

Quaity Assuance .........................................................................................Inside Front Cover

Imotant Message ...................................................................................................................3

Genea Infomation..................................................................................................................6

Comprehensive Factory Testing ......................................................................................6

Retesting by DOE Filter Test Facility ..............................................................................7

Design Qualification Tests ..............................................................................................7

Seismic Qualification ......................................................................................................7

Testing Service Available ...............................................................................................8

Fite Design and Constuction ...............................................................................................8

Filter Medium .................................................................................................................8

Two Types of Filter Pack Designs ..................................................................................8

Sealants/Adhesive ..........................................................................................................9

Case Material .................................................................................................................9

Case Styles ....................................................................................................................9

Faceguards ....................................................................................................................9

Fite Seection ........................................................................................................................10

Underwriters Laboratory UL 586 ..................................................................................10

Filter Selection ..............................................................................................................10

Standad Sizes and Caacities SEpArATOrlESS® Fites ................................................11

Standard SEPARATORLESS® Filters ...........................................................................11

Chart: Gel Seal Filters ..................................................................................................11

Chart: Gasket Seal Filters ............................................................................................11

SEpArATOrlESS® Media packs .........................................................................................12

Standard Sizes and Capacities ....................................................................................12

Diagram: Dimension ....................................................................................................12

Chart: 11-inch SEPARATORLESS® Filter Element .......................................................12

Chart: 4-inch SEPARATORLESS® Filter Element .........................................................12

Standad Sizes and Caacities Seaato-Tye Fites .....................................................13

Chart: Gel Seal Filters ..................................................................................................13

Chart: Gasket Seal Filters ............................................................................................13

Chart: 11-inch Separator-Type Filter Element ..............................................................14

Chart: 5 1/2-inch Separator-Type Filter Element .........................................................14

Chart: 2 3/4-inch Separator-Type Filter Element .........................................................14

High Temeatue Seaant .....................................................................................................15

Separator-Type Filters ..................................................................................................16

Supply or Exhaust Air 500ºF Gasket Seal or 390ºF Gel Seal ......................................16Chart: Separator-Type Filters Gel Seal and Gasket Seal .............................................16

Exhaust Air Only 1000ºF ...............................................................................................16

Chart: Separator-Type Filters Gasket Seal Only ..........................................................16

Nuclear Grade HEPA Filters - Table of Contents



5

Nuclear Grade HEPA Filters - Table of Conten

round Fites ...........................................................................................................................17

Diagram: Flanges ........................................................................................................17

Chart: SEPARATORLESS® Filters, Standard Sizes ......................................................17

Chart: Separator-Type Filters .......................................................................................17

Gel Seal ........................................................................................................................18

Gasket Seal ..................................................................................................................18

Lifting Bails ...................................................................................................................18

Faceguards ..................................................................................................................18

Drilled Flanges ..............................................................................................................18

UL 586 ...........................................................................................................................18

Model Numbers and Specifications .............................................................................18

Nie-Connected Fites .......................................................................................................19

Chart: N1 or N2 Filters with SEPARATORLESS® Filter Elements, Standard Sizes ......19

Chart: N1 or N2 Filters with Separator-Type Filter Elements, Standard Sizes ............19

Design Featues and Otions ................................................................................................20

Roughing Prefilter .........................................................................................................20

Diagram: Prefilter ..........................................................................................................20

Gasket Seal (N1 Filters Only) ........................................................................................20

Diagram: Wood Case or Metal Case ............................................................................20

Drilled Flanges ..............................................................................................................20

Diagram: Nipple-Connected Flange .............................................................................20

Diagram: Filter Face Flange .........................................................................................20

Slip-On Flanges ............................................................................................................20

Faceguards ..................................................................................................................20

UL 586 (N1 and N2 Filters) ...........................................................................................20Model Numbers and Specifications .............................................................................20

Mode Numbe Designating Deveoment ...........................................................................21

Filter Model Number .....................................................................................................21

To Order .......................................................................................................................21

Nuclear Filter Size Designators ....................................................................................21

Chart: Standard Size Designator ..................................................................................21

Mode Numbe Designating Chat .......................................................................................22

Suggested Secifications ......................................................................................................23

Envionmenta Condition .......................................................................................................24

Packaging and Palletizing ............................................................................................24

Diagram: Vertical Pleats ................................................................................................24receit, Stoage, Shef life ...................................................................................................25

Shelf Life Information ...................................................................................................25

BlU-JEl® Sea Data ...............................................................................................................26



6

Nuclear Grade HEPA Filters: General Information

Quaity Assuance

The Quality Assurance Program of Flanders Filters,

Inc. (FFI) meets or exceeds the basic requirements

of ASME NQA-1 and 10CFR50 APPENDIX B.Comehensive Factoy Testing

Nuclear Grade HEPA Filters meet the require-

ments for performance, testing and construction

specified in Section 4.2.2 of IEST-RP-CC001.4

for Type B HEPA filters. This section describes

performance levels and states, “A filter that has

been tested for overall penetration at rated flow

and at 20% of rated flow, in accordance with

Section 9.1.1 (Mil Std-282). The minimum filter

efficiency of encapsulated filter in this type is

99.97% on 0.3µm particles.Every FFI NuclearGrade HEPA filter is factory tested for penetration

and resistance to airflow at 100% of its rated air

flow prior to shipment. These values are recorded

on a barcoded serialized label that is applied to

each filter. Additionally, filters rated at 75 cfm and

greater are factory tested for penetration at 20% of

rated airflow. (This test is commonly known as the

two-flow test.) The maximum penetration allowed

at either flow is 0.03%. In recent years, HEPA filter

designs exceeding the original test methods for

flow capacities have been developed. Therefore,

Flanders uses one of two test methods to ensure

the performance of Nuclear Grade Filters. They

are described as follows:

The test method historically specified and use

by Flanders for most Nuclear Grade filters is

Mil-Std-282 (method 102.9.1). In this test an

approved aerosol is used to generate a nearly

monodisperse aerosol of approximately 0.3 mi-crometer diameter droplets. The penetration of

the aerosol through the filter is measured with

forward light scattering photometer. The mea-

suring instrument specified by Mil-Std 282 is a

Q-107 penetrometer. It was originally developed

by the U.S. Army prior to 1950. The measuring

instrument is limited by design to testing at flows

ranging from 15 cfm to 1100 cfm. Flanders uses

this instrument for all Nuclear Grade filters with

rated air flows ranging from 15 cfm to 1100 cfm.

For filters rated below 75 cfm, the 20% flow testcannot be performed accurately.

FFI Nuclear Grade Filters are produced in square,

rectangular, and nipple-connected designs.



7

Nuclear Grade HEPA Filters: General Informatio

HFATS Test

Los Alamos National Laboratory developed an

alternate test method in the 1980’s under con-

tract to the U.S. Department of Energy (DOE).

It is often referred to as the HFATS test (HighFlow Alternative Test System). It was developed

specifically to test filters rated at airflows high-

er than 1100 CFM, but it can be used for lower

flows. It is only limited by the size of the system

fan and the aerosol generator output. This meth-

od was later standardized in the publication of a

recommended practice, IEST-RP-CC007.1, Test-

ing ULPA Filters, published by the Institute of

Environmental Sciences and Technology. Cur-

rently, ASME AG-1 Section FC allows for testing

by this method. The filter is challenged with anacceptable polydispersed oil aerosol and the

penetration through the filter is measured with

a Laser Particle Counter. The Particle Counter

counts and sizes individual droplets in a size

range from 0.1 to 3.0 micrometers in diameter.

The ratio of the downstream counts to the up-

stream counts in each size range is the pen-

etration. Although this value is not equal to the

penetration measured by the Q-107, research

performed by Los Alamos National Laboratory

verified it to be very similar and the method to

be an acceptable alternative to the penetrationmeasured by Mil-Std-282 Test Method.

Since this system measures the penetration in

each size range, and a HEPA filter penetration

varies with particle size, the maximum allowable

penetration is 0.03% for the most penetrating

particle size (MPPS). Flanders Filters Inc. can

use this system to test filters that are rated at

flows higher than 1100 CFM, if specified by the

customer.

retesting by DOE Fite Test Faciities

DOE requires that nuclear facilities operated by

DOE contractors have their HEPA filters retested

at a Filter Test Facility operated for DOE. This

service must be arranged by the buyer. Filters

rejected at the test station as not conforming to

the purchase specifications and determined not

to have been damaged in shipment, will be re-

placed at no cost to the buyer. Filters must be

shipped directly from the factory to the retest

facility. If filters must be shipped to the retest

facility, the requirement must be specified when

quotations are requested. Filters requiring test

will be quoted and sold to end user only. Upon

successfully passing the testing at the retest fa-

cility, filters become the property of the end user

or buyer. The end-user or buyer must arrange

for their transport from the retest facility to the

end-user’s site.

Design Quaification Tests

Design qualification testing is a key element ofNuclear Grade filters. Since there is a wide va-

riety of filter types, sizes, and construction ma-

terials, purchasers shall clearly state required

design qualification tests within their solicita-

tions.These tests may include, but are not lim-

ited to those specified in ASME AG-1 Section

FC-5100. Section FC tests are defined only for

filter sizes specified in Table FC-4110 and may

not be applicable for round and nippleconnect-

ed filter designs. AG-1 requires design qualifi-

cation test to be performed by an independent

laboratory within 5 years prior to shipment.

Flanders has several models which meet these

requirements; please consult the factory for the

latest list of models which do. In addition, Flan-

ders has the capability to perform several of

the FC-5100 qualification tests, in-house, under

the Flanders quality assurance program. These

tests may be helpful to the purchaser for quali-

fying designs which do not meet the full require-

ments of ASME AG-1. Please consult the factory

for assistance in this matter.

Seismic Quaification

ASME AG-1 requires filters to be seismically

qualified per the purchaser specified loadings.

FFI has qualified various filter models per ASME

AG-1 Section FC - 4300. The test qualification



8

was performed as follows: A HEPA filter was in-

stalled in a Flanders/CSC bag-in bag-out con-

tainment housing and subjected to simulated

earthquake loading. No failure or damage was

observed during or subsequent to the simulatedevent. The load exceeded the current require-

ments for UBC Zone 4 loading.

Testing Sevice Avaiabe

Flanders service personnel are available for in-

stallation, supervision of installation, lter testing

and certication of compliance to industry and

government standards, and instruction of the

owner’s personnel in testing and maintenance

procedures. Contact the factory for details.

Fite Design and Constuction

Fite Medium

The lter medium in FFI’s Nuclear Grade l-

ter elements is glass (boron silicate microber)

and contains a waterproong binder which adds

strength under both wet and dry conditions. FFI

manufactures its own lter media to meet or ex-

ceed the requirements of ASME AG-1 Section

FC, Mandatory Appendix FC-I. Approved media,

formulated for resistance to airborne acids, are

also available; consult the factory.

Two Tyes of Fite pack Designs

Flanders Filters Inc. manufacturers SEPARA-

TORLESS® HEPA Filters and conventional Sepa-

rator-Style Filters. In a separator-style pack, the

filter media is folded over corrugated aluminum

separators with hemmed edges to separate the

pleats of the filter pack.

Flanders Filters manufactures its own filter me-

dia, enabling us to develop a unique manufac-

turing process for the production of SEPARA-

TORLESS® HEPA Filters. In one manufacturing

operation, Flanders Filters Inc. produces a self-supporting and self-separating Media Pack. The

SEPARATORLESS® Filter offers many advan-

tages over conventional separator-style HEPA

Filters:

• More usable media area for longer service

life and higher dust-holding capacity

• Reduced cost of ownership due to longer

service life

• Maximum utilization of the media

• 11 inches deep SEPARATORLESS® Pack

has approximately 400 sq. ft. of media ascompared to 240 sq. ft. for a conventional

separator-style filter.

• Can handle some harsh environments

which may attack aluminum separators

• Media pack can be incinerated

• Media is thicker than conventional media

used in separator-style HEPA Filters

Nuclear Grade HEPA Filters: Design and Construction

HEPA Filters SEPARATORLESS® HEPA lter with aformed, self-supporting pack

Conventional Separator-style HEPA lter with aluminum separators



9

Nuclear Grade HEPA Filters: Design and Constructio

Seaants/Adhesive

Fire-retardant solid urethane is used to bond the

lter element to its integral case. Maximum tem-

perature rating for this sealant is 250°F.

Case Mateia

Plywood 3 / 4- inch re-retardant plywood cases are

ideal for many applications, and are easier to in-

cinerate or breakdown for disposal than are metal

case lters. However, they are not recommended

for use in systems having high moisture content

or high temperature: they may warp or support

biological growth. Stainless steel case materials

should be used in moisture-laden applications.

Stainless Steel - 14-gauge Type 409 and 14-gauge

Type 304 stainless steel cases are available. The

Type 409 stainless steel replaced cadmium-plated

and chromized steel. However, Type 409 material

has a low resistance to caustic atmospheres. Type

304 stainless steel is recommended for those ap-

plications.

Case Stye

The technique used for sealing the lter in service

determines the selection of the lter case style.(See illustrations.)

Gel Seal — Metal case gel seal lters have a fab-

ricated channel ( 3 / 4” wide x 3 / 4” deep) located on

one face. Wood case lters have a routed channel

( 3 / 8” wide x 3 / 4” deep) on one face.

BLU-JEL® Seal was developed by Flanders and

is the standard gel seal material.

Gasket Seal — Metal case gasketed lters are pro-

vided with anges for the placement of the gasket

as specied by the customer. On wooden cases,

the gasket is applied to the face of the case.

Gasketed lters for normal service are supplied

with closed cell sponge neoprene ( 1 / 4” x 3 / 4”).

High-temperature lters require the special seal-

ants described on page 15. Specify upstream,downstream, or both for the location of the gasket

or gel seal within the model number.

Faceguads

The standard faceguard materials are 23-gauge

4 x 4 mesh, welded galvanized dipped steel or

18-gauge Type 304 stainless steel. Faceguards

protect the media, but are not a guarantee against

damage caused by mishandling.Note: Specify faceguard location as upstream, down-

stream or both.

A knife edge in the lter housing mates into a gellled channel provided on the lter. Flanders in-vented the uid seal in response to requirements

for an absolute seal in the most critical applications.In most cases, gel seal lters are also easier andquicker to change out than gasketed lters.

A lter clamping mechanism is typically used tomaintain sealing pressure on gasketed lters.Gasket seals have a tendency to develop bypassleaks, primarily because of compression set.

The Gel Seal The Gasket Seal

Filte

Gel SealChannel

Knife Edge

BLUE-JEL® Seal

GasketSeal

Filte



10

Undewites laboatoy, Ul 586

To be UL 586 classied, lters must be submit-

ted to Underwriters Laboratories for extensive

testing including spot ame, and environmentalexposure to heated air. A UL 586 classication is

accepted by the DOE as meeting the Heated Air

and Spot Flame Test requirements in ASME AG-1

for Nuclear Grade lters.

UL labels are optional. Some high-temperature

flters, and flters larger than 24” x 30” x 111 / 2” ,

are not eligible for UL 586.

Fite Seection

1. Standard SEPARATORLESS® maximum height

is 24-inches. When specifying a lter size,

the rst dimension is always the height of the

lter (the dimension parallel to the pleat of the

medium); the second dimension is always the

width of the lter; and, the third dimension is

the lter depth.

2. The lter sizes in Table FC-4110 do not include

all sizes offered by manufacturers or requested

by users today. The table is limited to nine (9)

sizes, perceived by the American Society of

Mechanical Engineers (ASME) to be standard.

For special sizes, not addressed by the table,contact the factory.

3. Of the sizes appearing in Table FC-4110, the

GG-F (24” x 24” x 111 / 2”) and GG-D (24” x 24”

x 5 7 / 8 ”) are the largest. Capacities for other

sizes are computed from one of these two,

depending on the lter element depth of the

unlisted lter and its effective face area relative

to the listed size. (The face area is obtained

by subtracting two inches from the height and

width dimensions to allow for the thickness of

the case and the pack-to-case sealant.)4. 11 1 / 2” deep lters are generally selected for

service where a minimum amount of space

relative to a maximum amount of airow is

required. Most often this is required in built-

up banks, walk-in plenums, or side-access

housings. Flanders’ GG-F size lter is most

frequently selected.

5. If lters are operated at higher ows, efciency

can decrease and resistance will increase.

Care should be taken if the customer is plan-

ning to operate a lter at higher than the rated

capacity to determine if hostile environmentalfactors, such as combined high operating ow

rate, water vapor condensation, and/or acid

vapors, will cause lter failure. For example,

water condensate on the lter media could

plug the element, causing failure.

A Z-drawing will be developed and become the

size designator, in the model number for any lter

which has special construction or testing require-

ments which are not covered in the Style Code

System. Example: Z07123

Imotant Note:

GG-F lters with SEPARATORLESS® media packs

are sold as Size 5, 6 or 7. Unless customer speci-

es to the contrary, the lter is tested and sold as

Size 5 (1000 cfm @ 1.0” w.g. maximum).

Nuclear Grade HEPA Filters: Filter Selection

“T”-clip on alignment mechanism(T-clips are factory installed.)



11

Type 409 S/S 0-007-W-42-03-NU-11-13-_ _-FU5

Type 304 S/S 0-007-W-43-03-NU-11-23-_ _-FU53 / 4” Fire-Retardant Plywood 0-007-W-04-00-NU-11-13-_ _-FU5

Type 409 S/S U-007-U-42-05-NU-51-13-_ _-FU5

Type 304 S/S U-007-U-43-05-NU-51-23-_ _-FU53 / 4” Fire-Retardant Plywood U-007-U-04-05-NU-51-00-_ _-FU5/

Type 409 S/S T-007-W-42-05-NU-51-13-_ _-FU5

Type 304 S/S T-007-W-43-05-NU-51-23-_ _-FU53 / 4” Fire-Retardant Plywood T-007-W-04-05-NU-51-13-_ _-FU5

Standad SEpArATOrlESS® Fites

Insert the desired Filter Size Designator from

the charts on page 12 at the end of the model

number.( Example: T-007-W-43-05-NU-51-23-GG-FU5)

Ge Sea Fites

Typical model numbers specifying lters with

galvanized or stainless steel faceguards on both

faces and with either BLU-JEL® Seal or a neo-

prene gasket located on the upstream face are

addressed below.

Gasket Sea Fites

Note: “T” prex in model number indicates T-clip requirement for gel seal-type lters used in side-

access housings. (See gel seal photo on page 10.)

Type 409 S/S 0-007-D-42-03-NU-11-13-_ _-DU5

Type 304 S/S 0-007-D-43-03-NU-11-23-_ _-DU53 / 4” Fire-Retardant Plywood 0-007-D-04-00-NU-11-13-_ _-DU5

Gasket Seal Filters Size, Material and Model NumberMedia Pack Depth

(inches)

Case Filter Material Model Number(typical)

Type 409 S/S T-007-D-42-05-NU-51-13-_ _-DU5

Type 304 S/S T-007-D-43-05-NU-51-23-_ _-DU53 / 4” Fire-Retardant Plywood T-007-D-04-05-NU-51-13-_ _-DU5

Gel Seal Filters Size, Material and Model Number

Media Pack Depth(inches)

Case Filter Material Model Number(typical)

4

5 1 / 2

11

11

Type 409 S/S T-007-U-42-05-NU-51-13-_ _-FU5

Type 304 S/S T-007-U-43-05-NU-51-23-_ _-FU53 / 4” Fire-Retardant Plywood T-007-U-04-05-NU-51-00-_ _-FU5

11

Nuclear Grade HEPA Filters: Filter Selectio

11



12

CC-F 12 12 111/ 2 200 1.0

CC-F 12 12 111/ 2 250 1.3

CG-F 12 24 111/ 2 455 1.0

GC-F 24 12 111/ 2 455 1.0

GE-F 24 18 111/ 2 725 1.0GG-F 24 24 111/ 2 1000 1.0

GG-F 24 24 111/ 2 1250 1.3

GG-F 24 24 111/ 2 1500 1.3

GN-F 24 30 111/ 2 1275 1.0

Standad Sizes and Caacities

Flanders manufactures standard square and

rectangular Nuclear Grade lters in a variety of

sizes and capacities. (Sizes and capacities forRound and Nipple connected lters are listed

in their respective sections in this bulletin.) The

type (SEPARATORLESS® or Separator-Type) and

depth of the lter element is a primary factor in

lter capacity.

NOTE: The maximum allowable resistance at

the Nominal Rated Capacity is 1.0-inch w.g. (or

1.3-inch w.g. for certain sizes listed in ASME

AG-1, Section FC, Table FC-4110).

SEPArATorLESS® Filte Sizes and Capacities

SEPArATorLESS® Filte Sizes and Capacities

Filte Size(designat)

Dimensins

(inches)H W D

Capacities(cfm)

Maximum Initialresistance(inches w.g.)

4-inch SEPArATorLESS® Filte Element

Filte Size(designat)

Dimensins

(inches)

H W D

Capacities(cfm)

Maximum Initialresistance

(inches w.g.)

Nuclear Grade HEPA Filters: SEPARATORLESS® Filter Selection

W D

H

Pack

Dept

BB-D 8 8 57/ 8 50 1.3

CC-D 12 12 57/ 8 125 1.3

GE-D 24 18 57/ 8 375 1.0

GG-D 24 24 57/ 8 500 1.0

GN-D 24 30 57/ 8 625 1.0



13

Nte: “T” prex in model number indicates T-clip requirement for gel seal-type lters used inside-access housings. (See gel seal photo on page 10)

Standad Seaato-Tye Fites

Insert the desired Filter Size Designator from the

charts on page 12 at the end of the model number.

(The Size Designator indicates whether a 51

/ 2- inchor 11-inch lter element is being ordered.) Typical

model numbers specifying lters with galvanized

or stainless steel faceguards on both faces and

BLU-JEL® Seal or a neoprene gasket located on

the upstream face are addressed below.

Gel Seal Filtes Gasket Seal Filtes

Gasket Seal Filtes Size, Mateial and Mdel Numbe

Media Pack Depth

(inches)

Case Filte Mateial Mdel Numbe

(typical)

Type 409 S/S T-007-C-42-05-NU-51-13 -_ _- DU5

Type 304 S/S T-007-C-43-05-NU-51-23 -_ _- DU53/ 4” Fire-Retardant Plywood T-007-C-04-05-NU-51-13 -_ _- DU5

Gel Seal Filtes Size, Mateial and Mdel Numbe

Media Pack Depth(inches)

Case Filte Mateial Mdel Numbe(typical)

Type 409 S/S T-007-C-42-05-NU-51-13 -_ _- FU5

Type 304 S/S T-007-C-43-05-NU-51-23 -_ _- FU53/ 4” Fire-Retardant Plywood T-007-C-04-05-NU-51-13 -_ _- FU5

5 1/ 2

5 1/ 2

11

11

Nuclear Grade HEPA Filters: Separator Filter Selectio

Type 409 S/S 0-007-C-42-03-NU-11-13 -_ _- DU5

Type 304 S/S 0-007-C-43-03-NU-11-23 -_ _- DU53/ 4” Fire-Retardant Plywood 0-007-C-04-00-NU-11-13 -_ _- DU5

Type 409 S/S 0-007-C-42-03-NU-11-13 -_ _- FU5

Type 304 S/S 0-007-C-43-03-NU-11-23 -_ _- FU53/ 4” Fire-Retardant Plywood 0-007-C-04-00-NU-11-13 -_ _- FU5



14

BB-D 8 8 57 / 8 50 1.3

CC-D 12 12 57 / 8 125 1.3

GE-D 24 18 57 / 8 375 1.0

GG-D 24 24 57 / 8 500 1.0

GN-D 24 30 57 / 8 625 1.0

Standard Separator-Type Filter Sizes and Capacities

CC-F 12 12 111 / 2 200 1.0

CC-F 12 12 111 / 2 250 1.3

CG-F 12 24 111 / 2 455 1.0

GC-F 24 12 111 / 2 455 1.0

GE-F 24 18 111 / 2 725 1.0

GG-F 24 24 111 / 2 1000 1.0

GG-F 24 24 111 / 2 1250 1.3

GG-F 24 24 111

/ 2 1500 1.3GN-F 24 30 111 / 2 1275 1.0

11-inch Seaato-Tye Fite Eement

Filter Size(designator)

Dimensions

(inches)H W D

Capacities(cfm)

Maximum InitialResistance(inches w.g.)

51 / 2 -inch Seaato-Tye Fite Eement


Dimensions

(inches)H W D

Capacities(cfm)

Maximum Initial

Resistance(inches w.g.)

BB-A 8 8 3 1 / 16 25 1.3

2 3 / 4-inch Seaato-Tye Fite Eement


Dimensions

(inches)H W D

Capacities(cfm)

Maximum Initial

Resistance(inches w.g.)

Nuclear Grade HEPA Filters: Standard Separator-Type Filter Selection



15

Standad High-Temeatue Fites

Flanders manufactures HEPA filters for

applications with high temperature re-

quirements up to 1000°F (540°C) for ex-haust air only and 500°F (260°C) for sup-

ply air. They do not meet all the qualification

requirements of ASME-AG1 Section FC. High-

temperature filters are available with gasket

or gel seal. (Filters with BLU-JEL® Seal have

a maximum service temperature of 392°F.)

Gasketed filters for high temperature ser-

vice are supplied with silicone sponge gas-

kets ( 1 / 4 inch thick x 3 / 4 inch wide). High Tem-

perature Nuclear Grade HEPA Filters meet the

requirements of IEST-RP-CC001.4 for Type B

Filters and are tested in accordance with MIL-Std-282. Two types of high temperature HEPA

filters are offered. The choice should be care-

fully made in accordance with the proposed

filter service requirements for the specific

application.

Siicone Seaant (Designato NE)

This is a high-temperature room-tempera-

ture vulcanizing (RTV) silastic-sealant silicone

compound rated for continuous service up to

500°F/260°C (supply air).

NOTE: This high-temperature sealant is UL 586

classied; however, it does not meet all the quali-

cation requirements of ASME-AG1 Section FC.

“NE” lters are eligible for UL586 labels.

Gass pack Seaant (Designato NG)

The glass pack seal is rated for continuous

service up to 1000°F/540°C in exhaust air ap-

plications only and with separator-type filter

elements only. A mat of submicron glass bers

creates a seal when compressed between the

lter pack and lter case. The glass packing isnot an adhesive seal but a mechanical seal that

functions much as the glass ber medium of the

lter itself.

Additional angle stiffeners are added to prevent

the lter pack from slipping at high pressure

drops.

Nuclear Grade HEPA Filters: High-Temperture

NOTE: Labels are not attached to 1000°F high

temperature lters.

NOTE: Due to the possibility of the glass pack

seals shedding glass bers, the glass pack sealant

should be used for exhaust systems only.

NOTES: _____________________________________

____________________________________________

____________________________________________

____________________________________________

____________________________________________

____________________________________________

____________________________________________

____________________________________________

____________________________________________

____________________________________________

____________________________________________

____________________________________________

____________________________________________

____________________________________________

____________________________________________

____________________________________________

____________________________________________

____________________________________________

____________________________________________

________________________________________________________________________________________

____________________________________________

____________________________________________

____________________________________________

____________________________________________

____________________________________________

____________________________________________

____________________________________________

____________________________________________

____________________________________________

____________________________________________

________________________________________________________________________________________

____________________________________________

____________________________________________

____________________________________________

____________________________________________

___________________________________________



16

Type 409 S/S T-007-C-42-05-NE-51-13-_ _-DU5 0-007-C-42-03-NE-31-13-_ _-D

Type 304 S/S T-007-C-43-05-NE-51-23-_ _-DU5 0-007-C-43-03-NE-31-23-_ _-D

Type 409 S/S T-007-C-42-05-NE-51-13-_ _-FU5 0-007-C-42-03-NE-31-13-_ _-F

Type 304 S/S T-007-C-43-05-NE-51-23-_ _-FU5 0-007-C-43-03-NE-31-23-_ _-F

Type 409 S/S 0-007-C-42-03-NG-00-23-_ _-F

Type 304 S/S 0-007-C-43-03-NG-00-23-_ _-F

Type 409 S/S 0-007-C-42-03-NG-00-23-_ _-D

Type 304 S/S 0-007-C-43-03-NG-00-23-_ _-D

Suy o Exhaust Ai

500° F Maximum (Gasket Sea) o 390°F

Maximum (Ge Sea)

Insert the desired Filter Size Designator from thechart on page 14 at the end of the model num-

ber. Typical model numbers specifying lters with

galvanized or stainless steel faceguards on both

faces and with BLU-JEL® Seal (for gel seal lters)

or silicone sponge (for gasket seal lters) locatedon the upstream face are addressed below.

Seaato-Tye Fites, Case Mateia and Mode Numbe

Media Pack

Depth(inches)

Case Filter

Material

Model Number

Gasket Seal(Max. 500° F, 260° C)

5 1 / 2

11

Model Number

Gel Seal(Max. 390° F, 200° C)

Seaato-Tye Fites Ony

Media Pack

Depth(inches)

Case Filter

Material

5 1 / 2

11

Model Number

Gasket Seal(Max. 390° F, 200° C)

Exhaust Ai Ony - 1000° F Maximum

Insert the desired Filter Size Designator, from the charts on page 14, at the end of the model number.

Model numbers specifying lters with stainless steel faceguards on both faces are addressed below.

Note: Not available in gel seal.

NOTE: These lters are shipped without gaskets, since none ofthe standard gasket materials are rated for 1000°F service. How-

ever, two woven glass gaskets may be provided with the lter if

requested. The gaskets are shipped unattached and must be in-

stalled with the lter. Filter Labels are also shipped unattached.

Nuclear Grade HEPA Filters: High Temperature

Nte: “T” prex in model number indicates T-clip requirement for gel seal-type lters used inside-access housings. (See gel seal photo on page 10)



17

A 6 5/ 8 8 5 1/ 4 3 1/ 16 20 1.0

B 6 5/ 8 8 8 5 1/ 2 35 1.0

C 10 5/ 8 12 8 5 1/ 2 100 1.0

round Fites

Round Nuclear Grade HEPA lters are available

with Flanders’ SEPARATORLESS® lter element

and with separator-type elements. Cases aremade of 14 gauge Type 304 or Type 409 stainless

steel, and are available for both gasket or uid seal

applications. Round lters are also manufactured

for high temperature applications. (See page 15

for information on high-temperature sealants.)

Round Nuclear Grade HEPA lter components are

materials specied in ASME AG-1 but the lters

are not tested for rough handling, wet over pres-

sure, or heated air or spot ame as required by

that specication. Flanders performs acceptance

testing of penetration and resistance only.

Standard ange placement for a single ange

rolled lter is upstream. Contact factory for alter-

nate placement.

ro

(NFlange)

r1(Single

Flange)

r2(DubleFlange)

r5(Gel

Seal)

SEpArATOrlESS® Fites Standad Sizes (contact factoy fo secia sizes)

Fite Size(designato)

Dimensions

(inches)

X Y ZNomina rated

Caacities(cfm)

Maximum Initia

resistance(inches w.g.)

Fite Eement

Deth(inches)

Seaato-Tye Fites Fite Size(designato)

Dimensions

(inches)X Y Z

Nomina rated

Caacities(cfm)

Maximum Initia

resistance(inches w.g.)

Fite Eement

Deth(inches)

B 6 5/ 8 8 8 4 35 1.0

C 10 5/ 8 12 8 4 100 1.0

Nuclear Grade HEPA Filters: Round Filters

Airflow

Airflow

Airflow

Airflow

X

Y

X

X

X

X

Y

Y

Z Z



18

Faceguads

The standard faceguard ma-

terials are 23-gauge 4 x 4

inch mesh, welded galvanizeddipped steel or 18-gauge Type

304 stainless steel. Faceguards


damage caused by mishandling.

Note: Specify faceguard location as upstream,

downstream or both.

Died Fanges

Drilled anges are avail-

able as an option. Flan-

ders’ standard pattern is

eight (8) 5 / 16-inch diame-

ter holes equally spaced

and centered on a 7 3 / 8 -inch diameter bolt circle

for sizes A and B, or a 11 5 / 16 -diameter bolt circle

for size C lters.

Note: Use the ‘D’ prex in the model number.

Nuclear Grade HEPA Filters: Round Filters

Ge Sea

Gel Seal filters are supplied with a 5 / 8 -inch

x 11 / 16 -inch deep channel on one face only. The

channel is factory-lled with Flanders’ BLU-JEL®

sealant.

Note: Designate R5 Case Style. Standard channel

location is upstream. (Face of ange)

Ul 586

For UL 586 classiication, lters must be submitted

to Underwriters Laboratories for extensive testingincluding spot ame and exposure to heated air.

A UL 586 classication listing is accepted by

DOE for meeting the Heated Air and Spot Flame

Test Requirement of Nuclear Grade HEPA lters.

NOTE: UL labels are optional and are applied only

if specied by the buyer.

Model Numbers and Specifcation

Note: To write a specication for Round Filters, usethe Designating Charts on pages 21 and 22 for de-

termining the model number. Fill in the numbered

locations in the Suggested Specication Text on

page 23 with the model number and other appro-

priate selections from the listing on page 17.

Channel

lifting BaisOptional lifting bails are available for easy lter-

removal in special applications.Note: Specify the “B” prex in the lter model-

number.

Face of Flange Back of Flange

Gasket Sea

Gaskets are made from 1 / 4-inch x 3 / 4 -inch closed

cell neoprene material. Gaskets may be located

on either side of the upstream ange. Contact

factory for downstream ange location.

Note: Designate R1 (one ange) or R2 (2 anges)

Case Style and specify location of the gasket as

face of ange, back of ange, face and back of

ange or faces of both anges in the model num-

ber. Detail any special placement requirements.

Gasket Location



19

BB-D 8 8 10 8 8 14 4 3 11/ 2 50 1.3

CC-D 12 12 12 12 12 18 4 4 11/ 2 125 1.3

CC-F 12 12 16 12 12 20 11 4 11/ 2 200 1.0CC-F 12 12 16 12 12 20 11 4 11/ 2 250 1.3

GG-D 24 24 12 24 24 14 4 12 4 500 1.0

GG-F 24 24 16 24 24 20 11 12 4 1000 1.0

GG-F 24 24 16 24 24 20 11 12 4 1250 1.3

GG-F 24 24 16 24 24 20 11 12 4 1500 1.3

BB-A 8 8 8 8 8 12 31/ 16 2 11/ 2 25 1.3BB-D 8 8 10 8 8 14 51/ 2 3 11/ 2 50 1.3

CC-D 12 12 12 12 12 18 51/ 2 4 11/ 2 125 1.3

CC-F 12 12 16 12 12 20 11 4 11/ 2 200 1.0

CC-F 12 12 16 12 12 20 11 4 11/ 2 250 1.3

GG-D 24 24 12 24 24 14 51/ 2 12 4 500 1.0

GG-F 24 24 16 24 24 20 11 12 4 1000 1.0

Max. InitialResistance(Inches w.g.)

N1 Filters

(inches) H W D

N2 Filters

(inches)

Filter Size

(designator)

Nominal RatedCapacity

(cfm)

X Y Z

(inches) H W D

Max. InitialResistance(Inches w.g.)

H W DN2 Filters

(inches)

Filter Size

(designator)

Nominal RatedCapacity

(cfm)

X Y Z

(inches)

Nipple Cnnected Filtes

Nipple Connected Nuclear Grade HEPA lters areavailable with one (N1) or two (N2) nipple connec-

tions, and with SEPARATORLESS

®

or separator-type lter elements. Case materials are 14-gaugeType 304 and 14-gauge Type 409 stainless steeland 3/ 4 - inch re retardant plywood. High tempera-ture models are also available. (See page 15 for

information on sealants.) Nipple-Connected ltersare made of materials specied in ASME AG-1 butare not tested for rough handling, wet over pres-

sure, or heated air or spot ange as required by

that specication. Flanders performs acceptancetesting for penetration and resistance prior to at-tachment of cover plates.

N2 FiltesTypical Wd Case Filte Illustated

N1 FiltesTypical Metal Case Filte Illustated

Nte: Standard Nipple-placement for N1 Filter is downstream. Contact factory for alternate placement. Whenordering N1 or N2 lters, specify size of nipple connections if Flanders’ standard sizes (see “Y” dimension) arenot appropriate for your application.

Nuclear Grade HEPA Filters: Nipple Connected Filter

N1 o N2 Fites with Seaato-Tye Fite Eements, Standad Sizes

Ai Fow

Fite

pack

H

W

X

D

Z

Y H

W D

Ai Fow

Fite

pack

X Z

Y

N1 o N2 Fites with SEpArATOrlESS® Fite Eements, Standad Sizes

H W DN1 Filters

(inches)



20

Roughing Preflter

The case depth dimension of N1 lters may be

extended 2-inches to accommodate a roughing

prelter. Indicate the ‘P’ prex in the model numberto specify this option. A special size designator is

required. Contact the factory for details.

Note: Prelter must be shipped loose for UL 586

listed units.

Preflter or Preflter

Flanders’standard patterns are as follows: 5/ 16 -inchdiameter holes equally spaced and centered on thelter face ange, or equally spaced and centered

on the nipple-connection ange.

Gasket Sea

Gaskets are made from 1 / 4 -inch thick x 3 / 4 -inch

wide closed cell neoprene material. Specify loca-

tion of the gasket as upstream or downstream, in

the lter model number.

Wd Case Metal Case

Si-On Fanges

Optional 150 pound slip-on anges for pipe nipple

connections shall be available in Type 304 stain-

less steel, and in any standard IPS size. Note:

Other sizes and types of anges are available per

customer specications.

FaceguadsThe standard faceguard materials are 23-gauge

4 x 4 mesh, welded galvanized dipped steel or

18-gauge Type 304 stainless steel. Faceguards


damage caused by mishandling.

Note: Specify faceguard location as upstream,

downstream or both.

Ul 586 (N1 and N2 Fites)

To be UL 586 classied, lters must be submitted

to Underwriters Laboratories for extensive testing

including spot ame and exposure to heated air. A

UL 586 listing is accepted by DOE for the Heated

Air and Spot Flame Test Requirement of Nuclear

Grade HEPA Filters. UL labels are optional and

are applied only if specied by the buyer.


Note: To write a specication for Nipple-Connect-ed Filters, use the Designating Charts on pages 21

and 22 to determine the model number. Fill in the

numbered locations in the Suggested Specica-

tion text on page 23 with the model number and

other appropriate selections from the listing on

page 12 for SEPARATORLESS® or page 14 for

Separator-type.

Note: Nipple-connected lters are not intended

to serve as containment housings.

Died Fanges

Standard anges may be located on the open

face or on the nipple connection. These anges

may be drilled in a standard pattern or according

to customer specications.

Nipple-Cnnectin Flange

Filte Face Flange

Nuclear Grade HEPA Filters: Design Features and Options

Air Flow 3/4 inch

Single-Turn

Flange

Air Flow



21

B = 8 A = 31/ 16

C = 12 D = 57/ 8

E = 18 D2= 77/ 8

G = 24 F = 111/ 2

N = 30 F2 = 131/ 2

U = 113/ 8

Y = 233/ 8

Example:GG-F = 24” H x 24” W x 111/ 2 D

T ode:

Specify the desired filter: Refer to the modelnumber charts in this bulletin and/or to the Model

Number Designating Chart on page 22. Separatelylist and explain any required options or any require-ments not addressed by the lter model number.

Nuclea Filte Size Designats

Standard Size Filters are designated using the fol-lowing Alphanumeric Code for the Height, Widthand Depth of the Filter:

Mdel Numbe Develpment

The Filte Mdel Numbe

The design and construction of Flanders’ NuclearGrade HEPA Filters are coded within the ltermodel number, which contains the following in-

formation:Hadwae—Clips, handles, bails, etc.Filte Medium—Standard or acid resistant.Pack Type—SEPARATORLESS®

or separator-

type.

Case Mateial—Stainless Steel or wood.Case Style—Gel or Elastomer gasket seal de-signs.Sealant—Material used to seal pack to caseGasket Type/LcatinFaceguad Type/LcatinFilte Size CdeUL Cde—For lters requiring UL labels. (standardsize lters only.) For odd size or lters requiring a“Z” drawing, the UL Code must be specied sepa-

rate from the lter Model Number.Example:

Standad Size Designato

Height and Width

Designatos(inches)

Deth(inches)

T - 007 - U - 43 - 05 - NU - 51 - 23 - GG - FU5

H a r d w a r e

F i l t e r M e d i u m

P a c k S t y l e

C a s e M a t e r i a l

C a s e S t y l e

S e a l a n t

G a s k e t T y p e /

L o c a t i o n

F a c e g u a r d

T y p e / L o c a t i o n

F i l t e r S i z e

C o d e

U L C o d e

Nuclear Grade HEPA Filters: Model Number Developmen



22

None 0Lifting Bail (for Round Filters) B

Drilled Flanges D2” Extended Case for Roughing Prelter P

Extractor T-Clips for Fluid Seal Filter TU-Handles on Wood-frame Filters for Flanders G1- housings U

Non-woven glass paper (boron silicate microber) 99.97% minimumefciency 007Same as 007, with additional treatment for resistance to HF 003

Same as 007, with additional treatment for resistance to NHO3 0104” deep lter pack (SEPARATORLESS®) D

11” deep Pureform® DYN-E2 lter pack (SEPARATORLESS®) U11” deep lter pack (SEPARATORLESS®) W

Pleated at sheet with corrugated aluminum separators C14-gauge Type 409 Stainless Steel (Bolted Construction) 4214-gauge Type 304 Stainless Steel (Bolted Construction) 43

14-gauge Type 304L Stainless Steel (Bolted Construction) 1214-gauge Type 316 Stainless Steel (Bolted Construction) 13

14-gauge Type 316L Stainless Steel (Bolted Construction) 153/4” re-retardant plywood 04

‘Box-Type’ Construction (for Wood Filters) 00Double-turn Flanges, both Faces (for Metal Filters) 03Channel for Gel Seal on One Face (Wood or Metal Filters) 05

Round Filter with No Flange RORound Filter with One Upstream Flange R1

Round Filter with Two Flanges R2Round Filter with Face Channel for Gel Seal R5

N1 Filter - One Downstream Nipple Connection N1N2 Filter - Two Nipple Connections N2

Fire-Retardant Solid Urethane NURTV Silastic Silicone for High Temperature Filters NE

Glass Packing for 1000°F Exhaust Filter NG

TYPE (1st Bx) LoCATIoN (2nd Bx)0. None 4. Glass packing1. Neoprene 5. BLU-JEL® Seal 0. None 2. Downstream face3. Silicone sponge X. (Special Material) 1. Upstream face 3. Both faces

TYPE (1st Bx) LoCATIoN (2nd Bx)0. None 0. None 2. Downstream face1. 23-Gauge Galvanized Steel 1. Upstream face 3. Both faces2. 18-gauge Stainless SteelX. (Special Material)

Seven spaces are allotted for lter size codes, although allspaces may not be required. Standard size designators

(GG-F, etc.) are entered ush left, including dashes. Specialsizes (Alphanumeric Designators and Z-drawings) are entered

ush left with the prexes (no dashes)

NOTE: UL Code is entered ush left in the remaining boxes. USE this UL Code when applicable:

U5 for UL 586.(Does not apply for Z-drawings)UL Cde

Pack tCase

Sealant

CaseMateial

SpecialHadwae

optins

FilteMedia

PackType

Case

Style

Gasket

Type/ Lcatin

FaceguadMateial/ Lcatin

EXAMPLE:

FilteSize

— T

0 0 7 —

4 —

4 3 —

0 5 —

N U —

5 1 —

2 3 —

U 5G G F —

Nuclear Grade HEPA Filters: Model Number Designating Chart



23

Suggested Specifcations

The lters shall be model *(1) Nuclear Grade as

manufactured by Flanders Filters, Inc. Washing-

ton, NC. The lter medium shall be all glass witha wet strength, water-repellent binder in accor-

dance with ASME AG-1 Section FC, Mandatory

Appendix FC-I.

To Secify SEpArATOrlESS® Fite Eement:

Each lter element shall be constructed without

the use of spacers of any kind, including separa-

tors, tape, string or strips of medium, by pleat-

ing a continuous sheet of a formed, corrugated

medium back and forth upon itself so that it is

self-supporting.

To Secify SEpArATOr-Tye Fite

Eement:

Each lter element shall be constructed by pleating

a continuous at sheet of medium over corrugated

.0015 inch minimum thick aluminum spacers

whose edges have been hemmed to resist tearing

the medium at the fold.

The element shall be permanently bonded to a

*(2) integral case with a re-retardant urethane

sealant. The perimeter of the lter face shall have*(3) to seal it to its mounting device in service.

Construction of the lter shall be in a accordance

with the essential construction requirements of

ASME AG-1 (latest issue).

Each lter shall be tested, while encapsulated,

for resistance to airow and penetration in accor-

dance with ASME AG-1 Section FC 5200 at the

nominal rated capacity listed in table FC-4110-1

and at 20% of that capacity for penetration only

(lters with rated capacity of 75 cfm or higher).

The penetration at both ows shall not exceed0.03%. (This paragraph may not apply to Round,

N1 or N2 lters.)

The HEPA filters shall comply with the per-

formance requirements as listed in ASME

AG-1 Section FC-5200. Each filter and filter

carton shall bear identical labels indicating

the filter model number, the serial number,

test air-flow direction and the resistance and

penetration readings at test ow taken for the

lter on the manufacturer’s Q107 penetrometer

or HFATS System. In addition, the manufacturer

shall provide a lter test report and a Certication

of Compliance report.

The manufacturer shall, upon request, submit

evidence that its lters have been qualied in ac-

cordance with ASME AG-1 or can reasonably be

expected to do so.

Filters that are 24” x 12” x 6” and larger shall be

packaged one lter per carton. Each lter shall

be encased in a anged, tighttting alignment

cushion sleeve that ts within the carton, leavinga dead-air space on four sides of the lter. The

top and the bottom of the lter shall be protected

with a cushion or comparible cushon design to

avoid the deleterious effects of shock, vibration,

physical damage, water vapor, salt spray, conden-

sation, and weather during shiping, handling, and

storage. Linerboard cartons shall be strapped to

a Flanders Type 2 pallet with 3 / 8-inch wood facing

on both faces.


Fill in the numbered locations on the Suggested

Specication Text by selecting from the corresponding

category below:

*(1) Filter model number

(See page 22)

*(2) Case material

14-gauge, Type 409 stainless steel (bolted)


14 gauge, Type 304L stainless steel (bolted)


14-gauge, Type 316L stainless steel (bolted)

3 / 4-inch thick re-retardant plywood

*(3) Case style

No anges

Two double turn anges

A 3 / 4-inch channel with gel sealant

A single metal-nipple connection

Two metal-nipple connections

Nuclear Grade HEPA Filters: Suggested Specifcation



24

Envionmenta Conditions

Heat resistance

In high-temperature applications, lter media will

exhibit a signicant loss of strength after the binderburns off. (This normally occurs in the 300°-325°F

range.) Flanders recommends only separator style

lters be used in high temperature applications.

Filters not specically designed for high tempera-

ture applications are nevertheless constructed

from self-extinguishing or noncombustible com-

ponents and will withstand periodic temperatures

up to continuous 250°F with no noticeable change

in pressure drop or penetration. However, ex-

tended service under such conditions can cause

accelerated aging of organic materials and may

subsequently contribute to lter failure.

Humidity and Wate resistance

HEPA lter media will tolerate high humidity (95%

±5%) and some direct wetting, but excessive

moisture, either from airborne droplets or con-

densation, can plug the lter and result in failure

by over-pressure. Wood cases are unsuitable for

high-moisture conditions, since wood expands or

warps when wet, and supports biological growth

under humid conditions. Metal case lters aremore suitable for moisture laden atmospheres.

Because aluminum separators can corrode in

some environments and slough particles down-

stream of the lter, SEPARATORLESS® lters are

also recommended for moist conditions, except

in high-temperature or caustic applications.

Chemica resistance

All materials have good resistance to most organic

solvents and are resistant to many weak organic

and inorganic alkalies and acids. Exposure toacids such as HF, and those with NOx radicals

occurs in nuclear systems fairly often and with

varying degrees of impact (HF attacks glass). In-

formation about the potential effects of humidity,various chemical agents, and heated air, and theinterrelationship of the construction materials, must

be determined by the user through testing.

packaging and paetizing

The successful delivery of undamaged HEPA lters

depends largely upon good packaging. Shipping

damage is minimized by encasing each lter in atight-tting alignment cushion that is located at its

top and bottom. This results in a dead-air space

around the lter to absorb impact. Flanders pack-

ages Nuclear Grade lters 24” x 12” x 11 1 / 2” and

larger in this manner.

All lter carton material is tested for strength and

certied to meet all construction requirements of

the applicable freight classication.

Additionally, all Nuclear Grade HEPA lters are pal-

letized for shipment in groups of cartoned ltersstacked side-by-side, with 3 / 8-inch wood facing at

the two most vulnerable ends and the aggregate

strapped to a wood pallet or crated.

Pleats

Vertical

Instaation

Note

HEPA lters should be installed with the pleats

aligned with the vertical axis when the airow is

horizontal. This prevents sagging and potential

tearing of the medium as the lter becomes

loaded with dust in-service.

Nuclear Grade HEPA Filters: Environmental Conditions



25

Nuclear Grade HEPA Filters: Receipt, Storage, Shelf Lif

receit and Stoage requiements

HEPA lters should be stored in their original car-

tons, in an environmentally controlled room.HEPA

lters should be oriented with their pleats vertical,

and stacked no more than three (3) cartons high

unless intermediate bracing or ooring is provided

to prevent the weight of the upper tier from bearing

on the lower tier. Unless there is obvious damage

to the cartons, HEPA lters should not be opened

prior to use, or removed from shipping pallets or

skids until immediately before installation.

Filter storage area should be periodically checked

to ensure lters are not exposed to detrimental

conditions. Storage areas should be unclutteredand permit easy access to lters. A lter-control

procedure is suggested for the storage area to

ensure lters are not removed from the area with-

out proper authority, and to prevent improper or

rejected items from being installed in the system.

Filters should be moved a minimum number of

times (receipt inspection, storage and release

for installation only) and handled in a manner

that does not damage them or their packaging. If

wrappings or cartons are removed for receiving

inspection, they should be replaced and positively

sealed immediately upon completion of the in-spection. Receiving and storage personnel shall

be informed of the necessity of proper handling of

all components, especially the HEPA lters. Care

must be taken to ensure the lter medium is not

touched in anyway.

Shef life Infomation

Flanders recommends that each lter is stored in

its original shipping carton to prevent exposure to

ultra violet rays and possible damage to the lter

medium. The lter should be stored in a controlledarea, 0°-120°F, and should not be exposed to

ozone depleting sources. If these parameters are

satised and storage requirements as detailed are

maintained, the lter shelf life should be three (3)

years from elastomer gasket cure date or three

(3) years from manufacturing date for gel seal

lters.

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26

BlU-JEl® Sea Data Sheet

The gel seal technique provides a simple solution

to a problem that has long been associated with

air lters used in critical applications: bypass leak-age at the interface of the lter and its housing or

supporting casework. This bypass can contribute

to high particle counts in clean rooms and laminar

ow work areas.

Bypass leakage occurs primarily where gaskets

are used to seal lters. Many factors contribute

to its occurrence: improper gasket joints; mating

anges that are not at or have been distorted

by clamping mechanisms used to compress the

gasket; memory loss or aging of the gasket mate-

rial; or, bad seals or welds in the lter mountingcasework.

The gel seal technique, rst developed and pat-

ented by Flanders in 1969, succeeds in eliminat-

ing bypass leakage because it avoids the major

causative factors: the use of gaskets and the need

for absolutely at mating surfaces. The technique

also eliminates clamping devices and allows easy

installation and replacement of lters.

Genea Descition

Flanders BLU-JEL® Seal is a unique, ice-blue sili-

cone gel specially designed to create and preserve

an airtight seal between high-efciency particulate

air lters and their holding cases or housings. The

gel is factory-installed and factory cured within the

perimeter channel of lters designed for gel seal

applications. The cured gel has the self-healing

quality of a liquid while retaining the stability and

non-ow characteristics of a solid. These proper-

ties are maintained at both high and low tempera-

ture extremes and are not lost even when aged

continuously at high temperatures. BLU-JEL® Seal

exhibits excellent bonding to many materials. It

is also highly self-adhesive, allowing knife edges

to be cleanly withdrawn. The hydrophobic nature

of the gel makes it ideally suited for applications

that require long-term sealing against moisture

and other atmospheric contaminants.

Temeatue range

The recommended constant operating tempera-

ture range for BLU-JEL® Seal is -70°F to +392°F.

Short terms (1-2 hours) at higher temperaturesshould be limited to 500°F. Exposure to either ex-

treme will not alter the properties of the gel when

returned to ambient temperature. Temperatures

below -70°F wil increase hardness; the gel will be-

come brittle at -90°F and will be prone to cracking

if subjected to mechanical shock. Continuous ex-

posure to temperatures above +392°F will result in

degradation of the polymer.

Fie and Exosion Data

Flash Point: Determined by Cleveland ASTM D92Open Cup Method. Result: No ash at 450°F.

Exosue to Fame

A ame exposure test evaluating BLU-JEL® Seal’s

ammability and self-extinguishing characteristics

was performed, following the same procedure

used in the Underwriters UL 94-VO test. The gel

turned to ash on the outer surface, but the inner

core remained normal. The gel maintained its

physical shape and did not run or melt. Based

upon the testing, it is concluded that BLU-JEL®

Seal is a self-extinguishing material that will per-form its designed function as a lter-to-housing

sealant until ame impingement totally turns the

sealant to ash.

Voatiity

The non-volatile content of BLU-JEL® Seal, as

determined by testing 2 grams for 2 hours at 302°F

(150°C), is 98%. The volatility rate of the gel, mea-

sured after it has been cured at the factory and is

ready for shipment, is 0.2%.

Nuclear Grade HEPA Filters: Blu-Gel® Seal Data



27

penetation

The effect of temperature on the hardness of

BLU-JEL® Seal has been tested using a Pen-

etrometer test machine. The following results areexpressed in points of penetration (mm x 10-1) as

measured by the machine: @-58°F: 35 @+77°F:

57 @+392°F: 34

Chemica resistance

Information on BLU-JEL® Seal’s resistance to a

wide variety of oils, fuels, hydraulic uids, sol-

vents, silicone uid, greases, food products, water

and steam, acids, bases, salts and other chemi-

cals is available from the factory upon request.

Nuclear Grade HEPA Filters: Blu-Gel® Seal Data

radiation Effects

The expected radiation resistance of BLU-JEL®

Seal is 20 megarads at room temperature, 10

megarads of radiation at 77°F. Radiation exposureat these levels will not affect the sealing properties

of the compound. Exposure to higher levels of

radiation and temperature will result in irreversible

brittleness. Further information on radiation testing

is available from the factory.

Non-Nutient

BLU-JEL® Seal is a non-nutrient and will not of

itself support biological growth. The compound

does not contain a fungicide.



Imotant Notice

For best results in the application of Flanders’ products, it is recommended that the buyer

supply complete information about the operating conditions of the ventilation system to

Flanders/FFI for prior evaluation. Flanders/FFI does not guarantee that its equipment

will operate at the performance levels given on the identication labels or in the catalog

specications under all conditions of installation and use, nor does Flanders/FFI guaran-

tee that suitability of its product for the particular end use which may be contemplated

by the buyer. When the system components are supplied to the buyer or his agent for

nal installation and assembly in the eld, it should be under the supervision of factorytrained personnel who are equipped to test the installation and certify its performance

and conformance to industry accepted specications. Failure to follow these procedures

may result in a compromised installation.

Telephone: 252-946-8081

Toll Free: 1 800 637 2803

Representatives of Flanders/FFI products are locat

throughout the world.

Your closest representative’s ofce may be found

contacting our manufacturing and sales departmen

Represented by:

Flanders Filters, Inc.

531 Flanders Filters Road

Washington, North Carolina 27889

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

Nuclear Grade Hepa Pb2016

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