Hc c l l1 lffbv-4 lffbvs-4 i – Watts LFFBVS-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
LFFBV-4
LFFBVS-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 Lead Free* copper silicon alloy
J. Seats
Virgin PTFE
K. Ball
Chrome plated Lead Free* brass
L. Adaptor
Forged Lead Free* copper silicon alloy
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”
A
B
C
D
E
G
H
I
J
K
J
L
A
H
B
C
D
I
J
J
L
K
E
G
ES-LFFBV-4 1323
© 2013 Watts
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A Watts Water Technologies Company