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75
cast iron
Malleable Iron
Cast Iron
Small Steel
Fittings
Pipe Nipples &
Pipe Couplings
Forged Steel
Fittings & Unions
Anvilets
Catawissa
J.B. Smith Products
Carton Information
Note:
See page 63 for pressure-temperature ratings.
figure 1018
Blind Flange
Pipe Size
I
Diam. of
Flange
O
Min. Flange
Thickness
Q
Wall
Thickness
V
Unit Weight
Black
Galv.
NPS DN
in
mm in
mm in
mm lbs
kg
lbs
kg
1
25 4
1
/
4
108
7
/
16
11
3
/
8
10 2.00 0.91 2.00 0.91
1
1
/
4
32 4
5
/
8
117
1
/
2
13
7
/
16
11 2.25 1.02 2.25 1.02
1
1
/
2
40
5 127
9
/
16
14
1
/
2
13 3.75 1.70 –
–
2
50
6 152
5
/
8
16
9
/
16
14 4.00 1.81 4.00 1.81
2
1
/
2
65
7 178
11
/
16
17
5
/
8
16 6.75 3.06 –
–
3
80 7
1
/
2
191
3
/
4
19
11
/
16
17 8.00 3.63 8.00 3.63
3
1
/
2
90 8
1
/
2
216
13
/
16
22
3
/
4
19 11.00 4.99 –
–
4 100 9 229
15
/
16
24
7
/
8
22 14.00 6.35 14.00 6.35
5 125 10 254
15
/
16
24
7
/
8
22 18.00 8.16 18.00 8.16
6 150 11 279 1
25
15
/
16
24 23.00 10.43 23.00 10.43
8 200 13
1
/
2
343 1
1
/
8
29 1
1
/
16
27 40.00 18.14 40.00 18.14
10 250 16 406 1
3
/
16
30 1
1
/
8
29 59.00 26.76 –
–
12 300 19 483 1
1
/
4
32
13
/
16
22 88.00 39.91 –
–
All Class 125 cast iron standard fanges have a fat face. Blind Flange 12 x 19 NPS supplied dished with inside radius to the pipe diameter. When ordering blind fanges, always give the outside diameters.
Iron Flanges
Class 125 (Standard)
Iron Flanges
Class 250 (Extra Heavy)
Class 125 (Standard) Iron Flanges are manufactured to American National Standard ASME B16.1.
QV
I
O
I
I
O
Q
V
10 x 16 (NPS) and smaller
12 x 19 (NPS) and larger
figure 1025
Companion Flange
Pipe Size
Diam. of
Flange
O
Min. Flange
Thickness
Q
Min. Hub
Diameter
X
Min. Length
Thru Hub
Y
Min. Length
of Threads
T
Diam. of
Raised Face
W
Unit Weight
Black
Galv.
NPS DN in
mm in
mm in
mm in
mm in
mm in
mm lbs
kg
lbs
kg
1
1
/
4
32 5
1
/
4
133
3
/
4
19 2
1
/
2
64 1 25 0.76 19 3
1
/
16
78 3.75 1.70 –
–
1
1
/
2
40 6
1
/
8
156
13
/
16
22 2
3
/
4
70 1
1
/
8
29 0.87 22 3
9
/
16
90 5.75 2.61 –
–
2 50 6
1
/
2
165
7
/
8
22 3
5
/
16
84 1
1
/
4
32 1.00 25 4
3
/
16
106 6.50 2.95 6.50 2.95
2
1
/
2
65 7
1
/
2
191 1 25 3
15
/
16
100 1
7
/
16
37 1.14 29 4
15
/
16
125 9.50 4.31 9.50 4.31
3 80 8
1
/
4
210 1
1
/
8
29 4
5
/
8
117 1
9
/
16
40 1.20 30 5
11
/
16
144 12.33 5.59 12.33 5.59
4 100 10 254 1
1
/
4
32 5
3
/
4
146 1
3
/
4
44 1.30 33 6
15
/
16
176 20.00 9.07 20.00 9.07
5 125 11 279 1
3
/
8
35 7 178 1
7
/
8
48 1.41 36 8
5
/
16
211 24.00 10.88 –
–
6 150 12
1
/
2
318 1
7
/
16
37 8
1
/
8
206 1
15
/
16
49 1.51 38 9
11
/
16
246 32.00 14.51 –
–
8 200 15 381 1
5
/
8
41 10
1
/
4
260 2
3
/
16
56 1.71 43 11
15
/
16
303 51.00 23.13 –
–
Y
T
Q
W
X
O