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DIMENSIONS FOR GASKETS USED WITH ANSI B16.5
(Dimensions in mm)
DN

GASKET
CONTACT
WIDTH

GASKET
INSIDE
DIAMETER
GASKET
CONTACT
INSIDE
DIAMETER
CENTERING RING OUTSIDE DIAMETER d3
mm
in
W
d1
d2
150
lbs
300
lbs
400
lbs
600
lbs
900
lbs
1500
lbs
2500
lbs
15
20
25
32
½
¾
1
4.83
4.83
6.35
7.87
21.34
26.92
33.27
42.16
30.99
36.58
33.27
57.91
47.75
57.15
66.55
76.20
53.85
66.55
73.15
82.55
53.85
66.55
73.15
82.55
53.85
66.55
73.15
82.55
63.50
69.85
79.25
88.90
63.50
69.85
79.25
88.90
69.85
76.20
85.85
104.65
40
50
65
80

2

3
9.65
9.65
9.65
9.65
48.51
60.45
71.88
88.90
67.56
79.25
91.95
107.95
85.85
104.65
123.95
136.65
95.25
111.25
130.05
149.35
95.25
111.25
130.05
149.35
95.25
111.25
130.05
148.08
98.55
142.75
165.10
168.15
98.55
142.75
165.10
174.75
117.35
146.05
168.15
196.85
90
100
125
150

4
5
6
7.95
12.70
12.70
12.70
101.60
114.30
141.22
168.15
120.65
139.70
166.62
193.55
162.05
174.75
196.85
222.25
165.10
180.85
215.90
250.95
162.05
193.55
241.30
247.65
162.05
193.55
241.30
266.70
-
206.25
247.65
289.05
-
209.55
254.00
282.45
-
234.95
279.40
317.50
200
250
300
350
8
10
12
14
15.75
19.05
19.05
19.05
218.95
273.05
323.85
355.60

250.95
311.15
361.95
393.70

279.40
339.85
409.45
450.85
307.85
361.95
422.15
485.65
304.80
358.65
419.10
482.60
320.55
400.05
457.20
492.25
358.65
434.85
498.35
520.70
352.55
434.85
520.70
577.85
387.35
476.25
549.15
-
400
450
500
600
16
18
20
24
22.35
22.35
25.40
25.40
406.40
457.20
508.00
609.60
450.85
501.65
558.80
660.40
514.35
549.15
606.55
717.55
539.75
596.90
654.05
774.70
536.45
593.85
647.70
768.35
565.15
612.65
682.75
790.45
574.55
638.05
698.50
838.20
641.35
704.85
755.65
901.70
-
-
-
-


DIMENSIONS FOR GASKETS USED WITH ASME B16.47 SERIES A (FORMERLY MSS-SP44) AND BS 3293
(Dimensions in mm)
DN
GASKET
INSIDE
DIAMETER
GASKET
CONTACT
INSIDE
DIAMETER
GASKET OUTSIDE DIAMETER BY CLASS
mm
in
d1
d2
PN 20
150 lbs
PN 50
300 lbs
PN 68
400 lbs
PN 100
600 lbs
PN 150
900 lbs
650
700
750
26
28
30
690
740
800
740
790
850
772
829
880
832
895
949
829
889
943
864
911
968
880
943
1007
800
850
900
32
34
36
845
895
950
905
955
1010
937
987
1045
1003
1054
1114
1000
1051
1114
1019
1070
1127
1070.1
1134.6
1197.1
950
1000
1050
38
40
42
960
1015
1065
1020
1075
1125
1108
1159
1216
1051
1111
1162
1070
1124
1175
1102
1153
1216
1197
1248
1299
1100
1150
1200
44
46
48
1125
1175
1220
1185
1235
1290
1273
1324
1381
1216
1270
1321
1229
1286
1343
1267
1324
1388
1365
1432
1483
1250
1300
1350
50
52
54
1270
1320
1375
1350
1400
1455
1432
1489
1546
1375
1426
1489
1400
1451
1515
1445
1495
1553
-
-
-
1400
1450
1500
56
58
60
1430
1485
1535
1510
1565
1615
1603
1661
1711
1540
1591
1642
1565
1616
1680
1610
1661
1730
-
-
-


TOLERANCES
DESCRIPTION

d1

d2

d3
OUTER DIA UPTO 600MM (24")
± 0.8
± 0.8
-0.8/+0
OUTER DIA 600MM TO 1200MM
± 1.2
± 1.2
-0.8/+0
OUTER DIA ABOVE 1200MM
± 1.6
± 1.6
-1.2/+0