Capacity, 6" (150mm), 8" (200mm) – Watts 957Z User Manual
Page 4: 4" (100mm), 4" bfg (100 mm) horizontal, 6" bfg (150 mm) horizontal
kPa psi
124 18
110 16
96 14
83 12
69 10
55
8
41
6
kPa psi
124 18
110 16
96 14
83 12
69 10
55
8
41
6
kPa psi
110 16
96 14
83 12
69 10
55
8
41
6
28
4
0
50
100
150
200
250
300
350 gpm
0
190
380
570
760
950
1140 1330 lpm
7.5 15
fps
2.3 4.6
mps
kPa psi
110 16
96 14
83 12
69 10
55
8
41
6
kPa psi
179 26
152 22
124 18
96 14
69 10
41
6
0 100 200 300 400
500
gpm
0
380
760
1140
1520
1900 lpm
7.5 15 fps
2.3 4.6 mps
2
1
⁄
2
" (65mm)
3" (80mm)
*
**
0 300 600 900 1200
1500
gpm
0 1140 2280 3420 4560
5700
lpm
7.5
15 fps
2.3
4.6 mps
6" (150mm)
*
*
0
500
1000
1500
2000
2500 gpm
0
1900
3800
5700
7600
9500 lpm
7.5
15 fps
2.3
4.6 mps
8" (200mm)
*
0
100
200
300
400
500
600
700 800 gpm
0
380
760 1140 1520 1900 2280 2660 3040 lpm
7.5 15
fps
2.3 4.6
mps
4" (100mm)
*
0
500 1000 1500 2000 2500 3000
3500
gpm
0 1900 3800 5700 7600 9500 11400 13300 lpm
7.5 fps
2.3 mps
10" (250mm)
*
**
**
**
**
**
kPa psi
124 18
110 16
96 14
83 12
69 10
55
8
41
6
Capacity
Series 957, 957N, 957Z flow curves as tested by Underwriters Laboratory per UL 1469, 1996.
Flow characteristics collected using butterfly shutoff valves
* = Rated flow ** = UL Rated flow
Horizontal
N-Pattern Z-Pattern
Z
N
H
Z
N
H
N
Z
H
N
Z
H
N
Z
H
N
Z
H
USC 6" C400BFG PSID
USC 4" C400BFG PSID
6" Colt BFG
0
2
4
6
8
10
12
14
16
0
200
400
600
800
1000
1200
1400
1600
Flow (GPM)
4" Colt BFGs
0
5
10
15
20
25
0
100
200
300
400
500
600
700
800
kPa psi
172 25
138 20
103 15
69 10
34
5
0 0
0 100 200 300 400 500 600 700 800
gpm
0
380
760
1140
1520
1900
2280 2680
3040 lpm
7.5 15
fps
2.3 4.6
mps
4" BFG (100 mm) Horizontal
USC 6" C400BFG PSID
USC 4" C400BFG PSID
6" Colt BFG
0
2
4
6
8
10
12
14
16
0
200
400
600
800
1000
1200
1400
1600
Flow (GPM)
4" Colt BFGs
0
5
10
15
20
25
0
100
200
300
400
500
600
700
800
kPa psi
110 16
96 14
83 12
69 10
55
8
41
6
28
4
14
2
0 0
0
200
400
600
800
1000
1200
1400 1600 gpm
0 760 1520 2280 3040 3800 4560 5300 6060
lpm
7.5
15 fps
2.3
4.6 mps
6" BFG (150 mm) Horizontal
**
**
*
*
ES-957/957N/957Z 1151
© 2012 Watts
USA: Tel. (978) 688-1811 • Fax: (978) 794-1848 • www.watts.com
Canada: Tel. (905) 332-4090 • Fax: (905) 332-7068 • www.watts.ca
A Watts Water Technologies Company