44
I-800
HANGER/SUPPORT SPACING
Since Victaulic FireLock CPVC Sprinkler System Pipe is rigid, it requires
fewer supports than flexible, plastic systems. Refer to the “Pipe Hangers”
section, starting on page 38, for details on hangers that are suitable for
specific installations.
• Vertical runs must be supported so that the weight of the run is not on a
fitting or a joint.
• Horizontal runs must be braced so that the stress loads (caused by
bending or snaking pipe) will not be placed on a fitting or a joint.
For information regarding bending or snaking Victaulic FireLock CPVC
Sprinkler System Pipe, refer to pages 49 and 50. Support spacing infor-
mation is shown in Table C on the following page.
Table A – Maximum Support Spacing Distance End Line
Sprinkler Drop Elbow
Note:
Support spacing can be increased by approximately 50% for lower pressures.
Pipe Size
Line pressure
< 100 psi
Line pressure
> 100 psi
Nominal Dia.
inches (mm)
Act. Outside Dia.
inches (mm)
3
/
4
1.050
9 inches
6 inches
(20)
(26,9)
1
1.315
12 inches
9 inches
(25)
(33,7)
1
1
/
4
1.660
16 inches
12 inches
(32)
(42,4)
1
1
/
2
– 2
1.900 – 2.375
24 inches
12 inches
(40 – 50)
(48,3 – 60,3)
Brace/Support
Brace/Support
Finished Ceiling Line
A*
B**
Any Distance
Between Supports
* Refer to Table A for values. ** Refer to Table B for values.
I-800 2755 Rev_I.fm Page 44 Tuesday, September 13, 2005 8:46 AM
