SECTION 033000 - CAST-IN-PLACE CONCRETE

Sludge Treatment Project Engineered Container Retrieval and Transfer System January 2012
1. Perform a Structural Capability test of each completed damper assembly to minus 15.0
in. w.g in accordance with ASME AG-1 Section DA-5500, Section TA-4231, and Section
TA-4232 on the completed damper frame and blade prior to the final pressure decay leak
test. Submit certifications of the Structural Capability test.
L. Pressure Decay Leak Test:
1. Factory leak test each completed damper assembly to minus 12.5 in. w.g. in accordance
with ASME AG-1 Section DA-5130, Section DA-5141, Section TA-4233, Section TA-
4234, and Section TA-4235. Frame leak test acceptance criteria, damper shall be leakage
class (zero leakage) and seat leakage acceptance criteria shall be Leakage Class II at
design pressure in accordance with ASME AG-1 Appendix DA-I. Rectify and retest any
deficiency and work affected by such deficiency.
M. Submit Seat leakage, frame leakage, and pressure drop ratings in accordance with ASME AG-1
Section DA-4130.
N. Submit documentation required by ASME AG-1 subsection DA-4212.2
O. Submit certifications of materials in accordance with ASME AG-1 Section DA-3300.
2.4 CONTROL DAMPERS
A. Manufacturers: Subject to compliance with requirements, available manufacturers offering
products that may be incorporated into the Work include, but are not limited to, the following:
1. American Warming and Ventilating; a division of Mestek, Inc.
2. Greenheck Fan Corporation.
3. McGill AirFlow LLC.
4. METALAIRE, Inc.
5. Nailor Industries Inc.
6. Ruskin Company.
B. Low-leakage rating, with linkage outside airstream, and bearing AMCA's Certified Ratings Seal
for both air performance and air leakage.
C. Frames:
1. Hat Channel shaped.
2. Galvanized-steel channels, 0.064 inch thick.
3. Mitered and welded corners.
D. Blades:
1. Multiple blade with maximum blade width of 8 inches.
2. Parallel blade design.
3. Galvanized steel.
4. 0.064 inch thick.
5. Blade Edging: PVC coated polyester locked into blade edge.
6. Jamb Seals: Flexible metal compression type.
Contract 44577 KW Annex - Rev. E 44577-CSI-SPEC-001 233300 - 5