213
Dixon Sanitary 2014
800.789.1718
Butterfly Valves
B51 Series Industrial Butterfly Valves
Technical Specifications
•
nominal size (inches): 1½" to 12"
•
nominal pressure:
200
PSI
•
body test pressure:
220
PSI
•
sealing test pressure: 1.1 x rated pressure
•
body material: various
•
disc material: various
•
shaft material: 416 stainless to ASTM A276
•
Buna-N temperature rating:
0
°F
to
180
°F
•
EPDM temperature rating:
-20
°F
to
250
°F
•
FKM temperature rating:
0
°F
to
350
°F
C
v
Values
Valve Sizing Coefficients (US-GPM / ΔP
Size
Disc Position (degrees)
90
°
80
°
70
°
60
°
50
°
40
°
30
°
20
°
10
°
1½"
130
105
75
50
35
25
12
5
2
2"
140
115
88
60
48
30
15
8
2
2½"
280
225
158
104
68
46
25
12
2
3"
460
365
250
152
98
63
35
16
2
4"
840
700
500
277
178
108
60
26
3
5"
1380
1140
770
431
258
170
100
40
4
6"
1840
1520
1030
555
356
220
130
52
7
8"
3300
2810
1880
1094
688
410
225
98
14
10"
5400
4500
2980
1744
1078
653
380
156
20
12"
8100
6740
4400
2544
1498
999
550
220
26
B51 Series Industrial Butterfly Valves
Dimensions
Handles
All dimensions are in inches, unless noted. Dimensions are approximate.
Engineering dimensions are available upon request. Specifications are subject to change without notice.
Gear Operators
Size
A
B
C
D
E
F Weight (lbs.)
1½"
.88
.35
1.25 8.00 9.00 1.00
1.00
2"
.88
.35
1.25 8.00 9.00 1.00
1.00
2½"
.88
.35
1.25 8.00 9.00 1.00
1.00
3"
.88
.35
1.25 8.00 9.00 1.00
1.00
4"
1.00
.43
1.38 10.60 12.00 1.13
2.00
6"
1.00
.55
1.38 10.60 12.00 1.13
2.00
8"
1.25
.67
1.75 12.60 14.00 1.38
3.00
•
1½"
to 8" valves ship with a 10 position trigger style handle
Size
DN
A
B
ØH Weight (lbs.)
Torque
(
in. lbs.)
1½"-3"
DN40-80 1.97 6.30 5.91
13.00
1330
4"
DN100
1.97 6.30 5.91
13.00
1330
5"-6"
DN125-150 1.97 6.30 5.91
13.00
1330
8"
DN200
2.60 8.86 9.84
26.00
2660
10"
DN250
2.60 8.86 9.84
26.00
2660
12"
DN300-350 2.60 8.86 11.80
31.00
6900
•
1½"
to 8" valves the gear operator is optional
•
10"
and 12" valves come standard with a gear operator
E
A
C
B
F
D
A
B
ØH
K