43
I-800
ENGINEERING DATA SECTION
Pipe and Fitting Specifications
Victaulic FireLock CPVC Sprinkler System Pipe is produced in SDR 13.5
dimensions, as specified in ASTM F-442.Victaulic FireLock CPVC Sprin-
kler System Fittings are produced in Schedule 40 and Schedule 80
dimensions, in accordance with ASTM F-437, ASTM F-438, and ASTM
F-439. These products are UL Listed FM/Approved for a rated working
pressure of 175 psi at 150°F for sprinkler service.
CPVC Fire Sprinkler Pipe Dimensions
Hydraulic Design
Hydraulic calculations for the sizing of a Victaulic FireLock CPVC Sprin-
kler System must be calculated using a Hazen-Williams C value of 150.
Pipe friction loss calculations must be made according to NFPA Standard
13.
The following table shows the allowance for friction loss for fittings,
expressed as equivalent length of pipe. For additional information
regarding friction loss, contact Victaulic.
Allowance for Friction Loss in Fittings
Equivalent feet of Pipe
SDR 13.5 (Ref. ASTM F442)
Weight
lbs/ft
Size
Nominal inches
(
mm)
Average OD
inches
Average ID
inches
3
/
4
1.050
0.874
0.168
(20)
1
1.315
1.101
0.262
(25)
1
1
/
4
1.660
1.394
0.418
(32)
1
1
/
2
1.900
1.598
0.548
(40)
2
2.375
2.003
0.859
(50)
³⁄₄
inch
1 inch
1
¹⁄₄
inches
1
¹⁄₂
inches
2 inches
Tee Run
1
1
1
1
1
Tee Branch
3
5
6
8
10
90° Elbow
7
7
8
9
11
45° Elbow
1
1
2
2
2
Coupling
1
1
1
1
1
I-800 2755 Rev_I.fm Page 43 Tuesday, September 13, 2005 8:46 AM