Catalog Section Thermowells
Flange Dimensions
Flange Weights
Metal Types
Thermometricscorp.com Dimensions for Class 1500 Flanges
Nom. Pipe Size
(inches)
O
Q*
R
X
No. and** Dia of Bolt Holes
Bolt Circle Dia.
YY*
H
J
Y*
B
YV
BB
Z
C
T
1/2
4.75
0.88
1.38
1.50
4-0.88
3.25
2.38
0.84
To Be
S
p
e
c
i
f
d
by
P
u
r
h
a
s
1.25
0.12
0.9
0.38
0.93
3/4
5.12
1.00
1.69
1.75
3.50
2.75
1.05
1.09
1.11
0.44
1.14
1
5.88
1.12
2.00
2.06
4-1.00
4.00
2.88
1.32
1.62
1.36
0.50
1.41
11/4
6.25
2.50
4.38
1.66
1.70
0.19
1.72
0.56
1.19
11/2
7.00
4-1.12
4.88
1.90
1.95
0.25
1.97
0.62
1.99
2
8.50
3.62
4.12
8-1.00
6.50
2.25
2.44
0.31
2.46
0.69
21/2
9.62
8-1.12
7.50
2.94
2.97
0.75
3.00
1.88
3
10.50
5.00
5.25
8-1.25
8.00
4.62
3.60
3.63
4
12.25
2.12
6.19
6.38
8-1.38
9.50
4.50
3.56
4.60
4.63
5
14.75
7.31
7.75
8-1.62
11.50
6.12
5.56
5.69
6
15.50
9.00
12-1.50
12.50
6.75
6.63
4.69
8
19.00
10.62
12-1.75
8.38
8.63
5.62
8.75
10
23.00
4.25
12.75
14.50
12-2.00
10.00
10.75
10.92
10.88
3.31
12
26.50
15.00
17.75
16-2.12
22.50
11.12
7.12
8.62
12.92
12.94
14
29.50
16.25
19.50
16-2.38
25.00
11.75
14.00
14.18
16
32.50
5.75
18.50
21.75
16-2.62
27.75
16.00
10.25
16.19
18
36.00
21.00
23.50
16-2.88
30.50
12.00
18.00
18.20
20
38.75
25.25
16-3.12
32.75
20.00
11.5
20.25
24
46.00
27.25
30.00
16-3.62
39.00
24.00
0.5
13.00
24.25
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