Nuclear Grade HEPA Filters - Flanders/CSC

Nuclear Grade HEPA Filters: Round Filters
Gel Seal
Gel Seal filters are supplied with a 5 /8 -inch
x 11 /16 -inch deep channel on one face only. The
channel is factory-filled with Flanders’ BLU-JEL ®
sealant.
Note: Designate R5 Case Style. Standard channel
location is upstream. (Face of flange)
Gasket Seal
18
Channel
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 flange. Contact
factory for downstream flange location.
Note: Designate R1 (one flange) or R2 (2 flanges)
Case Style and specify location of the gasket as
face of flange, back of flange, face and back of
flange or faces of both flanges in the model number.
Detail any special placement requirements.
Gasket Location
Face of Flange Back of Flange
lifting Bails
Optional lifting bails are available for easy filterremoval
in special applications.
Note: Specify the “B” prefix in the filter modelnumber.
Faceguards
The standard faceguard materials
are 23-gauge 4 x 4
inch 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,
downstream or both.
Drilled Flanges
Drilled flanges are available
as an option. Flanders’
standard pattern is
eight (8) 5 /16-inch diameter
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 filters.
Note: Use the ‘D’ prefix in the model number.
Ul 586
For UL 586 classifiication, filters must be submitted
to Underwriters Laboratories for extensive testing
including spot flame and exposure to heated air.
A UL 586 classification listing is accepted by
DOE for meeting the Heated Air and Spot Flame
Test Requirement of Nuclear Grade HEPA filters.
NOTE: UL labels are optional and are applied only
if specified by the buyer.
Model Numbers and Specification
Note: To write a specification for Round Filters, use
the Designating Charts on pages 21 and 22 for determining
the model number. Fill in the numbered
locations in the Suggested Specification Text on
page 23 with the model number and other appropriate
selections from the listing on page 17.