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FLAT RING GASKET DIMENSIONS TO ASME B16.21:2005
USED WITH ASME/ANSI B16.5 RAISED FACE FLANGES
(Dimensions in mm)
FULL FACE GASKET DIMENSIONS TO ASME B16.21:2005
USED WITH ASME/ANSI B16.5 FLAT FACE FLANGES
(Dimensions in mm)

NOMINAL
SIZE

ID
OD

NOMINAL
SIZE

ID
150 lbs
*300 lbs

DN
MM

NPS
in.

150 lbs
300 lbs
400 lbs
600 lbs
900 lbs

DN
MM

NPS
in.

OD
BCD
HOLE DIA.
BOLT HOLES
OD
BCD
HOLE DIA.
BOLT HOLES
15
20
25
½
¾
1
21.3
26.9
33.3
47.8
57.2
66.5
53.8
66.5
73.2
53.8
66.5
73.2
53.8
66.6
73.2
63.5
69.9
79.2
15
20
25
½
¾
1
21.3
26.9
33.3
88.9
98.6
108.0
60.5
69.9
79.2
15.9
15.9
15.9
4
4
4
95
117
123
67
83
89
16
19
19
4
4
4
32
40
50


2
42.2
48.5
60.5
76.2
85.9
104.6
82.6
95.3
111.3
82.6
95.3
111.3
82.6
95.3
111.3
88.9
98.6
142.7
32
40
50


2
42.2
48.5
60.5
117.6
127.0
152.4
88.9
98.6
120.7
15.9
15.9
19.1
4
4
4
133
155
165
98
114
127
19
22
19
4
4
8
65
80
90

3
73.2
88.9
101.6
124.0
136.7
162.1
130.0
149.4
165.1
130.0
149.4
162.1
130.0
149.4
162.1
165.1
168.1
-
65
80
90

3
73.2
88.9
101.6
177.8
190.5
215.9
139.7
152.4
177.8
19.1
19.1
19.1
4
4
8
190
209
228
149
168
184
22
22
22
8
8
8
100
125
150
4
5
6
114.3
141.2
168.1
174.8
196.9
222.2
180.8
215.9
251.0
177.8
212.9
247.7
193.5
241.3
266.7
206.2
247.7
289.1
100
125
150
4
5
6
114.3
141.2
168.1
228.6
254.0
279.4
190.5
215.9
241.3
19.1
22.4
22.4
8
8
8
254
279
317
200
235
270
22
22
22
8
8
12
200
250
300
8
10
12
218.9
273.1
323.9
279.4
339.9
409.7
307.8
362.0
422.1
304.8
358.6
419.1
320.5
400.1
457.2
358.6
434.8
498.3
200
250
300
8
10
12
218.9
273.1
323.9
342.9
406.4
482.6
298.5
362.0
431.8
22.4
25.4
25.4
8
12
12
381
444
520
330
387
451
25
29
32
12
16
16
350
400
450
14
16
18
355.6
406.4
457.2
450.9
514.4
549.1
485.6
539.8
596.9
482.6
536.4
593.9
492.3
565.2
612.6
520.7
574.5
638.0
350
400
450
14
16
18
355.6
406.4
457.2
533.4
596.9
635.0
476.3
539.8
577.9
28.6
28.6
31.8
12
16
16
584
647
711
514
572
629
32
35
35
20
20
24
500
600
20
24
508.0
609.6
606.6
717.6
654.1
774.7
647.7
768.4
682.8
790.4
698.5
838.2
500
600
20
24
508.0
609.6
698.5
812.8
635.0
749.3
31.8
35.1
20
20
774
914
686
813
35
41
24
24
* Q-GER INTERNAL MANUFACTURING SPECIFICATIONS

FLAT RING GASKET DIMENSIONS TO ASME B16.21:2005
USED WITH ASME B16.47 SERIES-A RAISED FACE FLANGES
(Dimensions in mm)

FLAT RING GASKET USED WITH RAISED FACE FLANGES

NOMINAL
SIZE

ID
OD

DN
MM

NPS
in.

150 lbs
300 lbs
400 lbs
600 lbs
550 1)
22 1)
558.8
660.4
704.9
701.8
733.6
650
700
750
26
28
30
660.4
711.2
762.0
774.7
831.9
882.7
835.2
898.7
952.5
831.9
892.0
946.2
866.6
914.4
971.6
800
850
900
32
34
36
812.8
863.6
914.4
939.8
990.6
1047.8
1006.3
1057.1
1117.6
1003.3
1054.1
1117.6
1022.4
1073.2
1130.3
950
1000
1050
38
40
42
965.2
1016.0
1066.8
1111.3
1162.1
1219.2
1054.1
1114.6
1165.4
1073.4
1127.3
1178.1
1104.9
1155.7
1219.2
FULL FACE GASKET USED WITH FLAT FACE FLANGES
1100
1150
1200
44
46
48
1117.6
1168.4
1219.2
1276.4
1327.2
1384.3
1219.2
1273.0
1323.8
1231.9
1289.1
1346.2
1270.0
1327.4
1390.7
1250
1300
1350
50
52
54
1270.0
1320.8
1371.6
1435.1
1492.3
1549.4
1378.0
1428.8
1492.3
1403.4
1454.4
1517.7
1447.8
1498.6
1555.8
1400
1450
1500
56
58
60
1422.4
1473.2
1524.0
1606.6
1663.7
1714.5
1543.1
1593.9
1644.7
1568.5
1619.3
1682.8
1612.9
1663.7
1733.6
NOTE: 1) NPS 22 is for reference only. Size not listed in ASME B16.47

FLAT RING GASKET DIMENSIONS TO ASME B16.21:2005
USED WITH ASME B16.47 SERIES-B RAISED FACE FLANGES
(Dimensions in mm)
FULL FACE GASKET DIMENSIONS TO ASME B16.47 SERIES-A
FLAT FACE FLANGES
(Dimensions in mm)

NOMINAL
SIZE

ID
OD

NOMINAL
SIZE

* 150 lbs
*300 lbs

DN
MM

NPS
in.

75 lbs
150 lbs
300 lbs
400 lbs
600 lbs

DN
MM

NPS
in.

ID
OD
BCD
HOLE DIA.
BOLT HOLES
ID
OD
BCD
HOLE DIA.
BOLT HOLES
550
22
558.8
749
692
35
20
558.8
838
743
41
24
650
700
750
26
28
30
660.4
711.2
762.0
708.2
759.0
809.8
725.4
776.2
827.0
771.7
825.5
886.0
746.3
800.1
857.3
765.0
819.2
879.3
650
700
750
26
28
30
660.4
711.2
762.0
870
927
984
806
864
914
35
35
35
24
28
28
700
750
805
971
1035
1092
876
940
997
45
45
48
28
28
28
800
850
900
32
34
36
812.8
863.6
914.4
860.6
911.4
973.1
881.1
935.0
987.6
939.8
993.6
1047.8
911.4
962.2
1022.4
933.5
997.0
1047.8
800
850
900
32
34
36
812.8
863.6
914.4
1060
1111
1168
978
1029
1086
42
42
42
28
32
32
860
905
955
1149
1206
1270
1054
1105
1168
51
51
54
28
28
32
950
1000
1050
38
40
42
965.2
1016.0
1066.8
1023.9
1074.7
1125.5
1044.4
1095.2
1146.0
1098.6
1149.4
1200.2
-
-
-
-
-
-
950
1000
1050
38
40
42
965.2
1016.0
1066.8
1238
1289
1346
1149
1200
1257
42
42
42
32
36
36
965
1015
1065
1168
1238
1289
1092
1156
1207
41
45
45
32
32
32
1100
1150
1200
44
46
48
1117.6
1168.4
1219.2
1181.1
1231.9
1282.7
1196.8
1255.8
1306.6
1251.0
1317.8
1368.6
-
-
-
-
-
-
1100
1150
1200
44
46
48
1117.6
1168.4
1219.2
1403
1454
1511
1315
1365
1422
42
42
42
40
40
44
1120
1170
1220
1352
1416
1466
1264
1321
1372
48
51
51
32
28
32
1250
1300
1350
50
52
54
1270.0
1320.8
1371.6
1333.5
1387.3
1438.1
1357.4
1408.2
1463.5
1419.4
1470.2
1555.8
-
-
-
-
-
-
1250
1300
1350
50
52
54
1270.0
1320.8
1371.6
1568
1625
1682
1480
1537
1594
48
48
48
44
44
44
1270
1320
1370
1530
1581
1657
1429
1480
1549
54
54
60
32
32
28
1400
1450
1500
56
58
60
1422.4
1473.2
1524.0
1495.6
1546.4
1597.2
1514.3
1579.6
1630.4
1593.9
1655.8
1704.8
-
-
-
-
-
-
1400
1450
1500
56
58
60
1422.4
1473.2
1524.0
1746
1803
1854
1651
1708
1759
48
48
48
48
48
52
1420
1475
1525
1708
1758
1809
1600
1651
1702
60
60
60
28
32
32
* Q-GER INTERNAL MANUFACTURING SPECIFICATIONS