Embed Size (px)
Citation preview
8/10/2019 Pipe Support Spacings
http://slidepdf.com/reader/full/pipe-support-spacings 1/1
NATSPEC TECHnotes April 2009
© NATSPEC TECHnote NTN DES 019 is a guidance note for consideration Check www.natspec.com.au for latest version
PIPE SUPPORT SPACING
Pipe supports are required in various applications, many of which are governed by Australian and otherstandards. While it might be expected these standards would mandate similar spacing for the same pipe
material and contents (e.g. steel pipe carrying cold water), the controlling standards are not consistent, givingdifferent values for maximum support spacing. For example, AS 2118.9 requires a DN 100 copper sprinkler pipe
carrying water to have supports at 4.0 m centres but AS/NZS 3500.1 requires the same size pipe, carrying the
same water into the building, to have supports spaced at 3.0 m centres. The table below illustrates thesedifferences for horizontal pipe (some standards do not cover vertical pipe).
If an applicable standard is available, NATSPEC references it in the respective worksection. In other situationsspecifiers may use the table for guidance.
Maximum spacing of supports for horizontal and near horizontal pipes metres)
R
e
e
A S 2 0 3 2
T a b l e 6 . 2
A S 2 0 3 2
T a b l e 6 . 3
A S 2 1 1 8 . 9
T a b l e 2 . 6 . 1
A S 2 1 1 8 . 9
T a b l e 2 . 6 . 1
A S 2 1 1 8 . 9
T a b l e 2 . 6 . 1
A S 2 8 9 6
T a b l e 4 . 1
A S / N Z S 3 5 0 0 . 1
T a b l e 5 . 2
A S / N Z S 3 5 0 0 . 1
T a b l e 5 . 2
A S / N Z S 3 5 0 0 . 2
T a b l e 9 . 1
A S / N Z S 3 5 0 0 . 2
T a b l e 9 . 1
A S 4 0 4 1
T a b l e 3 . 2
8 . 2
A S 4 0 4 1
T a b l e 3 . 2
8 . 2
A S 4 8 0 9
T a b l e 6 . 2
A S 5 6 0 1
T a b l e 4 . 2
A S 5 6 0 1
T a b l e 4 . 2
A S H R A E
H a n d b o o k
H V A C S y s t e m s
a n d E q u i p m e n t
P
p
m
a
e
a
U P V C
U P V C
C o p p e r a
n d
l i g h t w a l l s t e e l
G a l v a n i z e d
s t e e l
P l a s t i c
C o p p e r
C o p p e r ,
c o p p e r a l l o y
U P V C ,
C P V C , P E
,
C o p p e r
U P V C
S t e e l
S t e e l
C o p p e r
S t e e l
C o p p e r
S t e e l
S t e e l
C o p p e r
S
a
d
C
e
s
W a t e r -
p r e s s u r e
L i q u i d -
n o n - p r e s s u r e
W a t e r
W a t e r
W a t e r
M e d i c a l g a s
W a t e r
W a t e r
W a t e r
W a t e r
W a t e r
S t e a m , g a s
o r a i r
W a t e r
F u e l g a s
F u e l g a s
W a t e r
S t e a m
W a t e r
10 0.5 1.5 0.5 1.5 2.0 1.5
15 0.6 1.5 1.5 0.6 1.5 2.0 1.5 2.1 2.4 1.5
18 1.5 0.6 1.5 1.5
20 0.7 1.5 4.0 0.7 1.8 1.5 0.7 2.0 3.0 1.5 2.5 1.5 2.1 2.7 1.5
25 0.75 2.0 4.0 0.75 2.0 2.0 0.75 2.4 3.3 2.0 2.5 2.0 2.1 2.7 1.8
32 0.85 0.9 2.5 5.0 0.85 2.0 2.5 0.85 2.7 3.7 2.5 3.0 2.5
40 0.9 1.0 2.5 5.0 0.9 2.5 2.5 0.9 3.0 1.0 3.0 4.0 2.5 3.0 2.5 2.7 3.7 2.4
50 1.05 1.0 3.0 5.0 1.05 2.5 3.0 1.05 3.0 1.0 3.4 4.5 3.0 3.0 3.0 3.0 4.0 2.4
65 1.2 1.2 3.0 5.0 1.2 2.5 3.0 1.2 3.0 1.2 3.7 5.0 3.0 3.0 3.4 4.3 2.7
80 1.35 1.2 4.0 5.0 1.35 3.0 3.0 1.35 3.0 1.2 3.9 5.1 4.0 4.0 3.7 4.6 3.0
90 na 1.2 4.0 5.0 1.4 3.0 3.0 1.4 3.0 1.2
100 1.5 1.2 4.0 5.0 1.5 4.0 3.0 1.5 3.0 1.2 4.3 5.2 4.0 4.0 4.3 5.2 3.7
125 1.7 1.2 4.0 6.0 1.7 3.0 1.7 3.0 1.2 4.0 4.0
150 2.0 1.2 4.0 6.0 2.0 3.0 2.0 3.0 1.2 5.2 6.5 4.0 4.0 5.2 6.4 4.3
200 2.3 1.5 4.0 6.0 6.0 7.5 4.0 4.0 5.8 7.3 4.9
N
m
i
n
p
p
s
z
D
m
m
)
500 3.0 1.5 4.0 6.0 10.0 13.0 9.1 11.9
Relevant standards
AS 2032 Installation of PVC pipe systems
AS 2118.9 Automatic fire sprinklers systems
AS 2896 Medical gas systems
AS/NZS 3500 Plumbing and drainage
AS/NZS 3500.1 Water services
AS/NZS 3500.2 Sanitary plumbing and
drainage
AS 4041 Pressure piping
AS 4809 Copper pipe and fittings
AS 5601 Gas installations
ASHRAE Handbook HVAC Systems and
Equipment. American Society of Heating,Refrigerating and Air-conditioning
Engineers
Relevant worksections
0721 Packaged airconditioners
0722 Room airconditioners
0751 Mechanical piping
0755 Medical gas systems
0821 Stormwater – buildings
0822 Wastewater
0823 Cold and heated water
0824 Fuel gas
0833 Sprinklers
