Watts LFFBV - Manual (Page 2)

H
C
I
E
L
Valve Seat Rating
Pressure Drop
Flow – gpm
Pressure Drop vs. Flow
Materials
SIzE Max. BrEakaway/TorquE
in. mm in.-lbs N-m Cv
1 ⁄
2
15 60 6.8 15
3 ⁄
4
20 150 16.95 30
1 25 200 22.60 60
1 1 ⁄
4
32 250 28.25 110
1 1 ⁄
2
40 320 36.16 130
2 50 500 56.50 360
LFFBV
SIzE (DN) DIMENSIoNS wEIgHT
C E H I L
in. mm in. mm in. mm in. mm in. mm in. mm lbs. kg.
1 ⁄
2
15 1 3 ⁄
4
44 1 3 ⁄
32
28 3 3 ⁄
8
86 1 ⁄
2
13 2 3 ⁄
16
56 .6 .3
3 ⁄
4
20 2 1 ⁄
16
52 1 9 ⁄
32
33 3 5 ⁄
8
92 3 ⁄
4
19 2 9 ⁄
16
65 .8 .4
1 25 2 1 ⁄
2
64 1 7 ⁄
32
31 4 3 ⁄
8
111 1 25 3 1 ⁄
16
78 1.5 .7
1 1 ⁄
4
32 2 5 ⁄
8
67 1 9 ⁄
16
40 4 3 ⁄
8
111 1 1 ⁄
4
32 3 1 ⁄
2
89 2.5 1.1
1 1 ⁄
2
40 3 1 ⁄
8
79 1 15 ⁄
16
49 6 1 ⁄
8
156 1 1 ⁄
2
38 3 7 ⁄
8
98 3.5 1.6
2 50 3 1 ⁄
2
89 2 7 ⁄
32
56 6 1 ⁄
8
156 2 51 4 7 ⁄
16
113 5.5 2.5
1
⁄ 2
"
(15m
m)
3
⁄ 4
"
(20mm)
1"
(25
mm
)
2"
(5
0m
m
)
1 1
⁄ 2
" (4
0mm)
1 1
⁄ 4
"
(3
2m
m
)
20
10
8
6
4
3
2
1.0
.8
.6
.4
.3
.2
.1 3000 1000 800 600 400 300 200 100 80 60 40 30 20 10 8 6 4 3 2 .1
Flow
Pressure Drop
bar psi
41 600
34 500
28 400
21 300
14 200
7 100
3 50
0 0
0 50 100 150 200 250 300 350 400 450 °F
-18 10 38 66 93 121 149 177 204 232 °C
a
B
C
D
H
I
H
J
E
g
F
Valve Torque Rating
Dimensions — Weights
*Note: 1 gpm equals 3.785 liters per minute
1psi equals .07 bar
A Handle Nut Zinc plated carbon steel
B Handle Zinc plated carbon steel with vinyl
insulator
C Packing Nut Brass
D Stem Packing Virgin PTFE
E Thrust Washer Virgin PTFE
F Stem Brass
G Body Lead Free* silicon bronze
H Seats Virgin PTFE
I Ball Chrome plated Lead Free* brass
J Adapter Lead Free* silicon bronze
ES-LFFBV 1323 © 2013 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