g.
Floor grating: FS RR-G-661
h.
Stair tread grating: FS RR-G-661
i.
Weather enclosure roof and top surface of appurtenant structures (
6.40 mm1/4 inch): ASTM A 242/A 242M, Type I, raised pattern plate.
2.1.2
Insulation
Insulate baghouse ductwork including [reverse air ductwork,] inlet manifold
ductwork, and outlet manifold ductwork, hoppers, housing, and weather
enclosure. Do not use materials containing asbestos, magnesium oxide, or
Mica. Provide the following materials and minimum thicknesses:
a.
Ductwork (80 mm3 inches): ASTM C 59/C 59M2, mineral fiber
blanket; or ASTM C 612, mineral fiber block.
b.
Hoppers (100 mm4 inches) (with 50 mm 2 inchair gap): ASTM C 533,
calcium silicate block; ASTM C 59/C 59M2, mineral fiber blanket;
or ASTM C 612, mineral fiber block.
c.
Housing (100 mm4 inches): ASTM C 533, calcium silicate block;
ASTM C 59/C 59M2, mineral fiber blanket; or ASTM C 612, mineral
fiber block.
d.
Weather enclosure (80 mm3 inches):
ASTM C 533, calcium silicate.
2.1.3
Casing
Case baghouse ductwork including [reverse air ductwork,] inlet manifold
ductwork, and outlet manifold ductwork, hoppers, housing, and weather
enclosure. Provide the following materials and minimum casing thicknesses:
a.
Top ductwork surface and weather enclosure roof (2 mm0.080 inch):
ASTM B 209M ASTM B 209, flat aluminum sheet supported to permit
use as a walking surface without causing distortion or damage.
b.
All other surfaces (100 mm4 inch rib) (1.25 mm 0.050 inch): ASTM
B 209M ASTM B 209, unpainted aluminum panel and stucco embossed.
2.2
BAGS AND HARDWARE
[2.2.1
Bags and Hardware, Reverse Air Cleaning System
**************************************************************************
NOTE: Select this paragraph or the paragraph below
entitled "Bags and Hardware, Pulse Jet Cleaning
System."
**************************************************************************
Provide glass fiber bags, 3 kg per sq m 9.5 oz per sq ft, 3 by 1 twill
weave, as specified in paragraph entitled "Design Criteria." Coat bags
with 100 percent Teflon B lubricant for 10 percent add on weight. Bags 305
mm 12 inches in diameter and maximum 10.70 meters 35 feet in length shall
have not less than eight 3 mm 1/8 inchsewn-in cadmium plated welded steel
anti-collapse rings. Bags 200 mm 8 inches in diameter and maximum 7.30
meters 24 feet in length shall have not less than five 3 mm 1/8 inch
sewn-in cadmium plated welded steel anti-collapse rings. Provide leakproof
quick release Type 301 stainless steel clamps to attach the lower portion
SECTION 15863N
Page 23
Previous Page
