5
S
UBMITTAL
R
ECORD
FOR
D
URA
S
TACK
M
ODELS
DCL,
DAS1,
DIS1,
DIS2
AND
DIS4
M&G
D
URA
V
ENT
|
10
J
UPITER
L
ANE
|
A
LBANY
,
N
EW
Y
ORK
www.duravent.com
SECTION C - PIPE & FITTING JOINT ASSEMBLY
The ends of each inner pipe are made of flanges. All the joints between sections are
flange-to-flange of the inner pipe.
CAUTION: SHARP SHEET METAL, RISK OF CUTS WITH SLEEVES AND
SECTIONS.
All sections have an unattached alignment sleeve (See figure 5).
The alignment sleeve facilitates alignment of adjacent sections and
provides a backing for the sealant applied to flange face keeping it in the intended
location. It may either be placed on the outlet end section or in the
downstream section. It is not a required part, which means that it might not be used
at all.
Figure 5 – Feature Alignment Sleeve
SEALANT USAGE
Part No. S-650 –
(Permatex® Red High Temp Silicone) is red and is
one of our UL approved sealants for temperatures up to 650°F. Can
be used for V-Channel Bands and for weathering/sealing where
necessary.
Part No. S-2000 –
A high temperature pre-mixed sealant for flue gas
temperature up to 2000°F. S-2000 is water soluble and should not be
used where exposed to weather
Part No. S-375 –
(Nuflex 302 General Purpose) is a low temperature
grey silicone (450°F) only for weathering/sealing on outdoor seams
and Outer Band (BSE) where necessary.
STEP 1
Apply a continuous bead of S-650 or S-2000 sealant in the V-Clamp
grove of the locking band.
NOTE: Sealant is supplied by DuraVent
- individual tubes are marked
S-650
or
S-2000
. See
TABLE 6
for number of tubes per joint.
CAUTION: THE USE OF ANY OTHER SEALANT IS NOT RECOMMENDED, MAY VOID
CERTIFICATION AND MAY IMPAIR THE SEALING EFFECTIVENESS.
Figure
6
‐
Joint
Assembly
Step
1
STEP 2
Apply a continuous bead of S-650 or S-2000 sealant ¼” wide to one
of the flanges to be joined.
Figure
7
–
Joint
Assembly
Step
2
STEP 3
Join the two flanged ends of the duct section together and rotate
slightly to ensure complete coverage of sealant on flanges
Figure 8 – Joint Assembly Step 3
STEP 4
Install the V-Band around the flanges making sure the flanges are
located within the V-clamp
NOTE
: Do not locate V-Band hardware at the bottom side of the
horizontal duct joints
NOTE 1
: Light tapping with a hammer all around the band while
tightening bolts helps align and pull flanges together
Figure 9 – Joint Assembly Step 4
Removable
Alignment
sleeve
