DuraVent DURASTACK PRO DIS1 Series Manual de instrucciones - Página 4

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PRODUCT WEIGHTS
The average weight of the duct, per foot of length, can be estimated using the
following formula:
DCL
0.40
X
Diameter in
inches
Diameter in
DAS1
0.79
X
inches
Diameter in
DIS1
0.93
X
inches
Diameter in
DIS2
1.09
X
inches
Diameter in
DIS4
1.44
X
inches
Chimney design should provide adequate support to ensure components are not
overloaded.
THERMAL EXPANSION CALCULATIONS
Thermal expansion under normal operating temperatures can fatigue welds
causing leakage. It is necessary to calculate the thermal expansion between two
fixed points.
Formula: [Length (ft) / 100] x [Temperature Rise degrees F / 100]
Example: [50' / 100] x [75°F / 100] = 0.375" Expansion
If the computed expansions between the fixed points are greater than 0.375" -
DuraVent recommends an adjustable or bellow length be installed.
SUPPORT METHODS AND HEIGHT LIMITS
1.
Several support and guiding methods are used to anchor a chimney
against upward, downward and angular displacement.
2.
These supports and guides used with thermal expansion devices,
prevent bending stresses on the chimney elbows and joints.
3.
Supports and guiding methods and installation are described in
SECTION E-SUPPORTS. Certain limitations
installation of supports and guides. See Tables 3, 4 and 5 and
Figures showing MVS and H.
4.
It is recommended to apply an exterior grade high heat paint to any
plate supports,
full/half
aluminized outer maximum corrosion protection against the elements.
(Ex: Rust-Oleum V200 series High Heat Industrial Aerosol)
NOTE:
All the weight of the section is supported by the inner flue.
Never support any chimney pipe from the outer casing.
TABLE 3 – Height Limits for each Type of Support 
Flue 
Parts 
Diameter Ø 
(in) 
5 to 22 
Anchor Plate 
24 to 36 
5 to 22 
Anchor Plate 
with Length 
24 to 36 
Base Supported 
5 to 22 
Tee 
24 to 36 
5 to 22 
Wall Support 
24 to 36 
WARNING Do not attach any supports to combustible 
Dimensions are in inches (diameter) and feet (distance)
 
3 
 
= lbs per foot
= lbs per foot
= lbs per foot
= lbs per foot
= lbs per foot
apply for proper
angle
rings,
wall supports/guides,
HEIGHT (ft)
DCL 
DAS1 
DIS1 
DIS2 
DIS4 
264
133 
114 
97
73
161
82 
70 
59
45
281
142 
121 
103
78
172
87 
74 
63
48
102
52 
44 
37
28
63 
32 
27 
23
17
105
53 
45 
39
29
64 
32 
28 
24
18
S
R
UBMITTAL 
ECORD FOR 
M&G
D
 
URA
 
 
 
 
 
 
 
 
 
 
 
 
 
D
S
M
DCL,
DAS1,
DIS1,
URA
TACK 
ODELS 
 
 
V
|
10
J
L
|
A
,
ENT 
 
 
UPITER 
ANE 
 
LBANY
 
www.duravent.com 
DIS2
DIS4 
 
 AND 
N
Y
 
EW 
ORK