weather resistant and equipped with weep holes. The instructions shall be
complete and detailed for the actual filtration system provided.
PART 2
PRODUCTS
2.1
STANDARD PRODUCTS
Components and equipment shall be standard products of a manufacturer
regularly engaged in the manufacturing of products that are of a similar
material, design, and workmanship. The standard products shall have been
in satisfactory commercial or industrial use for 5 years before bid
opening. The 5-year experience shall include applications of components
and equipment under similar circumstances and of similar size. The 5 years
must be satisfactorily completed by a product which has been sold or is
offered for sale on the commercial market through advertisements,
manufacturer's catalogs, or brochures. Products having less than a 5-year
field service record will be acceptable if a certified record of
satisfactory field operation, for not less than 15,000 hours exclusive of
the manufacturer's factory tests, can be shown. The equipment items shall
be supported by a service organization.
2.2
ASBESTOS PROHIBITION
Asbestos and asbestos-containing products shall not be used.
2.3
FILTRATION SYSTEM HOUSING
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NOTE: A bag-in/bag-out housing is primarily used
for filtration systems that continuously filter
contaminants. For filtration systems in standby
mode or that will not likely filter contaminants, a
bag-in/bag-out housing is not required. A
blow-through filtration system will be used when
located in a contaminated environment and a
draw-through filtration system arrangement will be
used when located in a clean environment.
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All housings shall be of [single] [50 mm 2 inch double] [100 mm 4 inch
double] wall construction, fabricated of a minimum 2 and 3 mm 12 and 14
gauge ASTM A 240/A 240M Type 304 stainless steel, with all pressure
boundary joints, seams, and penetrations welded airtight. The housing
shall conform to ASME N509. The housings shall be a [single] [dual] side
servicing bank type arrangement. A housing two or more filtration elements
wide shall be equipped with a filtration element removal rod. The housing
design pressure shall be 5,000 pascals 20 inches wg. The housing shall be
designed and constructed with an integral structural steel frame. Lifting
lugs with a minimum of 50 mm 2 inch diameter eyeholes, made of the same
material as the housing, shall be provided on the top of each filtration
unit. All portions of the filtration system housing shall be free of sharp
edges and burrs.
2.3.1
Filtration Element Access Door
Each filtration element location shall be provided with an access door to
remove the filtration element and replace it with another. Access doors
shall be [single-wall] [double-wall insulated] type and fully gasketed to
the filtration system housing. Each access door shall be rigid and
SECTION 15860A
Page 9
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