CAST IRON FLANGES
Class 125 (Standard)
1016
q FIGURE
Reducing Flange
Pipe
Size
X
Q Y
O
To order reducing companion flanges, specify threaded or
reduced size first, then the outside diameter of deisred flange.
For instance, if a reducing flange is required to connect a
5 NPS (125 DN) pipe to an 8 NPS (200 DN) valve or fitting
having a 131/2 inch (338 DN) OD flange, order 5 NPS x 131/2
inch (125 x 338 DN) reducing flange.
Diameter Min. Flange Min. Diam. Min. Length
of Flange Thickness of Hub
Thru Hub
O
Q
X
Y
NPS
DN
in
mm
1
11/4
25
32
5
127
9
/16
14
1
11/4
11/2
25
32
40
6
152
5
16
11/2
2
40
50
7
178
11
27
1
11/2
2
21/2
3
11/2
2
21/2
3
31/2
25
40
50
65
80
40
50
65
80
90
71/2
191
3
19
81/2
203
13
30
9
229
15
33
3
4
80
100
10
254
15
/16
33
11/2
2
21/2
3
4
5
40
50
65
80
100
125
11
279
1
25
11/8
29
16
406 13/16
30
19
483
11/4
32
2
3
4
5
6
50
80
100 131/2 343
125
150
6
8
6
8
150
200
150
200
in
/8
/16
/4
/16
/16
mm
in
mm
115/16
25/16
115/16
25/16
29/16
29/16
31/16
115/16
29/16
31/16
39/16
41/4
29/16
31/16
39/16
41/4
413/16
41/4
55/16
29/16
31/16
39/16
41/4
55/16
67/16
31/16
41/4
55/16
67/16
79/16
79/16
911/16
79/16
911/16
49
59
49
59
65
65
78
49
65
78
90
108
65
78
90
108
124
108
135
65
78
90
108
135
164
78
108
135
164
192
192
246
192
246
in
11
/16
13
/16
11
/16
13
/16
7
/8
7
/8
1
13
/16
7
/8
1
11/8
13/16
1
1
11/8
13/16
11/4
13/16
15/16
11/16
11/16
11/8
13/16
15/16
17/16
13/16
13/16
15/16
17/16
19/16
19/16
13/4
19/16
13/4
Unit Weight
Black Paint
Galvanized
mm
lbs
kg
lbs
kg
17
22
17
22
22
22
25
22
22
25
29
30
25
25
29
30
32
30
33
27
27
29
30
33
37
30
30
33
37
40
40
44
40
44
2.75
2.50
5.00
4.75
4.50
7.00
6.75
9.00
8.75
8.50
8.00
10.00
14.00
14.00
13.50
12.75
12.00
17.00
16.00
27.00
26.00
25.00
23.00
21.00
19.00
44.00
40.00
37.00
34.00
31.00
53.00
50.00
88.00
81.00
1.25
1.13
2.27
2.15
2.04
3.18
3.06
4.08
3.97
3.86
3.63
4.54
6.35
6.35
6.12
5.78
5.44
7.71
7.26
12.25
11.79
11.34
10.43
9.53
8.62
19.96
18.14
16.78
15.42
14.06
24.04
22.68
39.91
36.73
–
–
–
–
4.50
7.00
6.75
–
8.75
8.50
8.00
–
14.00
14.00
13.50
12.75
–
17.00
16.00
–
26.00
25.00
23.00
21.00
19.00
–
40.00
37.00
–
31.00
–
–
–
–
–
–
–
–
2.04
3.17
3.06
–
3.97
3.85
3.63
–
6.35
6.35
6.12
5.78
–
7.71
7.26
–
11.79
11.34
10.43
9.52
8.62
–
18.14
16.78
–
14.06
–
–
–
–
Note: See following page for pressure-temperature ratings.
PROJECT INFORMATION
APPROVAL STAMP
Contractor:
q Approved
q Approved as noted
q Not approved
Engineer:
Remarks:
Project:
Address:
Submittal Date:
Notes 1:
Notes 2:
PF-11.16
CAST IRON FLANGED FITTINGS AND FLANGES
Class 125 (Standard) and Class 250 (Extra Heavy)
For Listings/Approval Details and Limitations, visit our website at
www.anvilintl.com or contact an Anvil Sales Representative.
Specifications
All Cast Iron Flanged Fittings and Flanges in sizes listed are made to ASME
and are marked 125 or 250 for pipe sizes 12 NPS (300 DN) and smaller.
Unless otherwise specified, cast iron flanges and fittings are drilled and
faced in accordance with ASME B 16.1.
Coatings
Flanged fittings and flanges are available in both black painted and
galvanized. Consult an Anvil Representative for available sizes.
Sizes
Size of all flanged fittings and flanges scheduled indicates nominal
pipe diameter of ports. Standard reducing elbows carry the same
dimensions center-to-face as regular elbows of largest straight size.
Ordering
To order reducing companion flanges, specify threaded or reduced
size first, then the outside diameter of flange wanted. For instance,
if a reducing flange is required to connect a 5-inch pipe to an 8-inch
flanged valve or fitting having a 13 1/2 inch O.D. flange, order: 5 x 13 1/2
inch standard reducing flange.
Dimensions
Cast Iron Flanged Fittings and Cast Iron Flanges
(°F)
3
Bolt holes for bolts smaller than 1 /4 inches (44mm) in diameter
are drilled 1/8 inch larger than the bolt diameter; 1 3/4 inch (44mm)
and larger bolts have holes drilled 1/4 inch (6mm) larger than bolt
diameter. Bolt holes straddle the center line. Bolt holes are spot
faced on order only.
Tolerances
An inspection limit of plus or minus 1/32 inch (1mm) shall be allowed on
all center to contact surface dimensions for sizes up to and including
10 NPS (250 DN); plus or minus 1/16 inch (1.5mm) on sizes larger than 10
NPS (250 DN). Inspection limit of plus or minus 1/16 inch (1.5mm) shall
be allowed on all contact surface to contact surface dimensions for
sizes up to and including 10 NPS (250 DN); plus or minus 1/8 inch (3mm)
on sizes larger than 10 NPS (250 DN). The largest opening in the fitting
governs the tolerance to be applied to all openings.
Pressure*
Class 125
Class 250
1"–12"
1"–12"
Temperature
(°C)
-20° to 150° -28.9˚ to 65.6˚
200°
93.3˚
225°
107.2˚
250°
121.1˚
275°
135.0˚
300°
148.9˚
325°
162.8˚
350°
178.3˚
375°
190.6˚
400°
207.8˚
425°
218.3˚
450°
232.2˚
psi
bar
psi
bar
200
190
180
175
170
165
155
150
145
140
130
125
13.8
13.1
12.4
12.1
11.7
11.4
10.7
10.3
10.0
9.7
9.0
8.6
500
460
440
415
395
375
355
335
315
290
270
250
34.5
31.7
30.3
28.6
27.2
25.9
24.5
23.1
21.7
20.0
18.6
17.2
*Applies to fittings and flanges manufactured with ASTM A-126 Class B
material only.
Standards and Specifications
Dimensions
Material
Galvanizing**
Thread
Pressure Rating
CAST IRON FLANGES AND FLANGED FITTINGS
Class 125 (1"-12")
Class 250 (1"-12")
ASME B16.1
ASME B16.1
ASTM A- 126 (A) or (B)
ASTM A- 126 (A) or (B)
ASTM A-153
ASTM A-153
ASME B1.20.1
ASME B1.20.1
**ASTM B 633. Type I, SC 4, may be supplied as alternate zinc coating per applicable ASME B16 product standard.
PF-11.16
ASME B16.1
ASME B16.1