Hc c l l1 fbv-4 fbvs-4 i – Watts FBVS-4 User Manual
Page 2

Size (DN)
DimeNSioNS
Weight
C H I
L
L1
FBV-4 FBVS-4
in. mm in. mm in. mm in. mm in. mm in. mm lbs. kg. lbs.
kg..
1
⁄
4
8
1
13
⁄
16
46 3
7
⁄
16
87
7
⁄
16
11 1
3
⁄
4
45
—
—
0.4
0.16
—
—
3
⁄
8
10 1
13
⁄
16
46 3
7
⁄
16
87
1
⁄
2
13 1
3
⁄
4
44.7 — — 0.4 0.17 — —
1
⁄
2
15 1
13
⁄
16
46 3
7
⁄
16
87
1
⁄
2
13
2
50
2
1
⁄
16
53 0.4 0.18 0.4 0.16
3
⁄
4
20 2
1
⁄
16
53
3
15
⁄
16
101
11
⁄
16
18 2
1
⁄
4
57 2
5
⁄
8
67 0.6 0.27 0.5 0.24
1 25 2
7
⁄
16
62 4
1
⁄
4
108
15
⁄
16
24 2
13
⁄
16
71
3
4
⁄
16
83 1.1 0.49 1.0 0.44
1
1
⁄
4
32 2
1
⁄
2
64 4
1
⁄
4
108 1
3
⁄
16
31 3
1
⁄
8
80
3
11
⁄
16
93 1.5 0.68 1.4 0.64
1
1
⁄
2
40 3 76 5
5
⁄
16
135 1
7
⁄
16
37 3
7
⁄
16
88 4
3
⁄
16
107 2.3 1.06 2.1 0.95
2 50 3
1
⁄
2
89 6 153 2 51 4
1
⁄
8
105
5
5
⁄
16
135 3.7 1.69 3.8 1.74
2
1
⁄
2
65 4
1
⁄
16
104 7
3
⁄
8
188 2
1
⁄
2
64 5
5
⁄
16
134 6
3
⁄
16
158 7.9 3.57 7.2 3.27
3 80 4
1
⁄
2
114 7
3
⁄
4
197 3 76 6
1
⁄
8
155 7
1
⁄
4
184 11.8 5.37 11.0 4.99
Dimensions-Weights
Materials
Flow Curves
Valve Seat Rating
h
h
C
C
L
L1
FBV-4
FBVS-4
i
A. Handle Nut
Zinc plated carbon steel
B. Handle Assembly
Zinc plated carbon steel
with vinyl insulator
C. Packing Nut Brass
D. Stem Packing
Virgin PTFE
E. O-Ring
Fluorocarbon elastomer (FKM)
G. Stem
Machined Brass
H. Tag
Cardboard, Mylar coated both
sides
I. Body
Forged brass
J. Seats
Virgin PTFE
K. Ball
Chrome plated brass
L. Adaptor
Forged brass
i
50
100 200 300 400 500
°F
10 38
93
149
204 260
°C
bar psi
41.3 600
34.5 500
27.6 400
20.7 300
13.8 200
6.9 100
3.4 50
0 0
temperature
Pressure
2
2 4 5 6 7 8 9
20
30
50
80
200 400
600 800
2000
1
10
100
1000 5000
20
10
1
.1
Differential Pressure (psig)
Flow (gpm)
1
⁄
4
”
3
⁄
8
”
1
⁄
2
”
3
⁄
4
” 1” 1
1
⁄
4
” 1
1
⁄
2
“ 2” 2
1
⁄
2
” 3”
1
⁄
4
” – 2”
2
1
⁄
2
” – 3”
ES-FBV-4 1140
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