Page 94 - Mechanical Products Installation Handbook IH-1000M

86 GROOVED COUPLINGS Flange Drilling Specifications
(1 of 2)
Notes:
Valve Size
Dim. A Bolt Circle Diameter
Dim. B Bolt Hole Diameter
Qty. N Number of Bolt Holes
ANSI B16.1 (Class 125#)a
ISO 2084 (PN10) b
Nominal Inches DN
O.D. Inches mm
A Bolt Circle Dia.
B Bolt Hole Dia.
N Bolt Hole Qty.
A Bolt Circle Dia.
B Bolt Hole Dia.
N Bolt Hole Qty.
2
50
2.375
60,3
4.75
120,6
0.75
19,1
4
4.92
125,0
0.75
19,0
4
2-1/2
65
4
100
6
150
10
250
14
350
18
450
24
600
2.875
73,0
4.500
114,3
6.625
168,3
10.750
273,0
14.000
355,6
18.000
457,2
24.000
609,6
5.50 0.75
139,7 19,1
7.50 0.75
190,5 19,1
9.50 0.88
241,3 22,4
14.25 1.00
362,0 25,4
18.76 1.12
476,5 28,4
22.75 1.25
577,9 31,8
29.50 1.38
749,3 35,1
4
8
8
5.71
0.75 4
a. Same drilling as for B16.5 (Class 150#) and B16.42 (Class 250#).
b. Same drilling as for BS 4504 Section 3.2 (PN10) and DIN 2532 (PN10).
c. Same drilling as for BS 4504 Section 3.2 (PN16) and DIN 2532 (PN16).
12 13.78
0.91 12
16 22.24
1.10 20
145,0 19,0
3
80
3.500
88,9
6.00
152,4
0.75
19,1
4
6.30
160,0
0.75
19,0
8
7.09
0.75 8
180,0 19,0
5
125
5.563
141,3
8.50
215,9
0.88
22,4
8
8.27
210,0
0.75
19,0
8
9.45
0.91 8
240,0 23,0
8
200
8.625
219,1
11.75
298,5
0.88
22,4
8
11.61
295,0
0.91
23,0
8
350,0 23,0
12
300
12.750
323,9
17.00
431,8
1.00
25,4
12
15.75
400,0
0.91
23,0
12
12 18.11
0.91 16
460,0 23,0
16
400
16.000
406,4
21.25
539,8
1.12
28,4
16
20.28
515,0
1.10
28,0
16
565,0 28,0
20
500
20.000
508,0
25.00
635,0
1.25
31,8
20
24.41
620,0
1.10
28,0
20
20 28.54
1.22
20
725,0 31,0