Watts LF757NDCDA - Manual (Page 3)

Capacity
Series LF757DCDA flow curves as tested by Underwriters Laboratory per UL 1469, 1996.
Flow characteristics collected using butterfly shutoff valves
* = Rated flow ** = UL Rated flow
Horizontal Vertical N - Pattern
kPa psi
96 14
83 12
69 10
55 8
41 6
28 4
14 2
0 0
0 50 100 150 200 250 300 350 gpm
0 190 380 570 760 950 1140 1330 lpm
15 fps
4.6 mps
kPa psi
83 12
69 10
55
8
41 6
28 4
14 2
0 0
0 100 200 300 400 500 gpm
0 380 760 1140 1520 1900 lpm
15 fps
4.6 mps
2 1 ⁄
2
"
3"
* kPa psi
83 12
69 10
55
8
41 6
28 4
14 2
0 0
0 300 600 900 1200 1500 gpm
0 1140 2280 3420 4560 5700 lpm
15 fps
4.6 mps
6"
kPa psi
83 12
69 10
55
8
41 6
28 4
14 2
0 0
0 500 1000 1500 2000 2500 gpm
0 1900 3800 5700 7600 9500 lpm
15 fps
4.6 mps
8"
kPa psi
165 24
138 20
110 16
83 12
55
8
28 4
0 0
0 100 200 300 400 500 600 700 800 gpm
0 380 760 1140 1520 1900 2280 2660 3040 lpm
15 fps
4.6 mps
4"
kPa psi
83 12
69 10
55
8
41 6
28 4
14 2
0 0
0 500 1000 1500 2000 2500 3000 3500 gpm
0 1900 3800 5700 7600 9500 11400 13300 lpm
fps
mps
10"
*
* *
* *
N
V
H
N
V
H
N
V
H
N
V
H
N
V
H
N
V
H
**
**
**
**
**
**
NOTICE
Inquire with governing authorities for local installation
requirements