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Ring gasket(RF) for JIS pipe flange unit:mm


specifi-cation diameter of flange
 inner diam-eter of gasket D1
D1
for whole space .largeness plane pressure flange.
smallness pressure plane flange
outer of gasket
pres
sure
2K
pres
sure
5K
pres
sure
10k
pres
sure
10k
pres
sure
16k
pres
sure
20k
pres
sure
30k
pres
sure
40k
pres
sure
63k
10
15
20
18
22
28
-
-
-
45
50
55
53
58
63
55
60
35
53
58
63
53
58
63
59
64
63
59
64
69
64
69
75
25
32
40
35
43
49
-
-
-
65
78
83
74
84
89
78
88
93
74
84
89
74
84
89
79
89
100
79
89
100
80
90
108
50
65
80
61
77
90
-
-
-
93
118
129
104
124
134
108
128
138
104
124
140
104
124
140
114
140
150
114
140
150
125
153
163
90
100
125
102
115
141
-
-
-
139
149
184
144
159
190
148
163
194
150
165
203
150
165
203
163
173
208
163
183
226
181
196
235
150
175
200
167
192
218
-
-
-
214
240
260
220
245
270
224
249
274
238
-
283
238
-
283
251
-
296
265
-
315
275
-
330
225
250
300
244
270
321
-
-
-
285
325
370
290
333
378
294
335
380
-
356
406
-
356
406
-
360
420
-
380
434
-
394
449
350
400
450
359
410
460
-
-
535
413
473
533
423
486
541
425
488
-
450
510
575
450
510
575
465
524
-
479
534
-
488
548
-
500
550
600
513
564
615
585
643
693
583
641
691
596
650
700
-
-
-
630
684
734
630
684
734
-
-
-
-
-
-
-
-
-
650
700
750
667
718
770
748
798
856
746
796
850
750
810
870
-
-
-
784
836
896
805
855
918
-
-
-
-
-
-
-
-
-
800
850
900
820
872
923
906
956
1006
900
950
1000
920
970
1020
-
-
-
945
995
1045
978
1038
1088
-
-
-
-
-
-
-
-
-
1000
1100
1200
1025
1130
1230
1106
1216
1326
1100
1210
1320
1124
1234
1344
-
-
-
1158
1258
1368
-
-
-
-
-
-
-
-
-
-
-
-

1300
1350
1400
1500

1335
1385
1435
1540

-
1481
-
1636

-
1475
-
1630

-
1498
-
1658

-
-
-
-

1474
1534
1584
1694

-
-
-
-

-
-
-
-

-
-
-
-

-
-
-
-


note The hard gasket includes the asbestos joint sheet -rubber mold cutting - inserted fabric rubber
          cutting , gracile gasket ,and TFE cutting gasket.
        The standard measurement table is same as reference table 2 of JIS B 2202-1984 pipe ' gasket
          of flange'
        The application flange is JIS B 2210, JIS B 2220, JIS B 2240
        The soft gasket can't be recommended at specification pressure of over 30K in principle.


Gasket(FF) for KS JIS pipe flange unit:mm

specifi-cation diameter of flange
inner diam-eter of gasket D1 pressure
2K Z 		5K 10K 16K
outer diam-eter of gasket D2
 center diam-eter of bolt hole
C
n Ąż h
outer diam-eter of gasket D2
 center diam-eter of bolt hole
C
n Ąż h
outer diam-eter of gasket D2
 center diam-eter of bolt hole
C
n Ąż h
outer of gasket
C
center diam-eter of bolt hole
C
n Ąż h
10A
15
20
18
22
28
-
-
-
-
-
-
-
-
-
75
80
85
55
60
65
4 Ąż 12
4 Ąż 12
4 Ąż 12
90
95
100
65
70
75
4 Ąż 15
4 Ąż 15
4 Ąż 15
90
95
100
65
70
75
4 Ąż 15
4 Ąż 15
4 Ąż 15
25
32
40
35
43
49
-
-
-
-
-
-
-
-
-
95
115
120
75
90
95
4 Ąż 12
4 Ąż 15
4 Ąż 15
125
135
140
90
100
105
4 Ąż 19
4 Ąż 19
4 Ąż 19
125
135
140
90
100
105
4 Ąż 19
4 Ąż 19
4 Ąż 19
50
65
80
61
77
90
-
-
-
-
-
-
-
-
-
130
155
180
105
130
145
4 Ąż 15
4 Ąż 15
4 Ąż 19
155
175
185
120
140
150
4 Ąż 19
4 Ąż 19
8 Ąż 19
155
175
200
120
140
160
8 Ąż 19
8 Ąż 19
8 Ąż 23
90
100
125
102
115
141
-
-
-
-
-
-
-
-
-
190
200
235
155
165
200
4 Ąż 19
8 Ąż 19
8 Ąż 19
195
210
250
160
175
210
8 Ąż 19
8 Ąż 19
8 Ąż 23
210
225
270
170
185
225
8 Ąż 23
8 Ąż 23
8 Ąż 25
150
175
200
167
192
218
-
-
-
-
-
-
-
-
-
265
300
320
230
260
280
8 Ąż 19
8 Ąż 23
8 Ąż 23
280
305
330
240
265
290
8 Ąż 23
12 Ąż 23
12 Ąż 23
305
-
350
260
-
305
12 Ąż 25
-
12 Ąż 25
225
250
300
244
270
321
-
-
-
-
-
-
-
-
-
345
385
430
305
345
390
12 Ąż 23
12 Ąż 23
12 Ąż 23
350
400
445
310
355
400
12 Ąż 23
12 Ąż 25
16 Ąż 25
-
430
480
-
380
430
-
12 Ąż 27
16 Ąż 27
350
400
450
359
410
460
-
-
605
-
-
555
-
-
16 Ąż 23
480
540
605
435
495
555
12 Ąż 25
16 Ąż 25
16 Ąż 25
490
560
620
445
510
565
16 Ąż 25
16 Ąż 27
20 Ąż 27
540
605
675
480
540
605
16 Ąż 33
16 Ąż 33
20 Ąż 33
500
550
600
513
564
615
655
720
770
605
665
715
20 Ąż 23
20 Ąż 25
20 Ąż 25
655
720
770
605
605
715
20 Ąż 25
20 Ąż 27
20 Ąż 27
675
745
795
620
680
730
20 Ąż 27
20 Ąż 33
24 Ąż 33
730
795
845
660
720
770
20 Ąż 33
20 Ąż 39
24 Ąż 39
650
700
750
667
718
770
825
875
945
770
820
880
24 Ąż 25
24 Ąż 25
24 Ąż 27
825
875
945
770
820
880
24 Ąż 27
24 Ąż 27
24 Ąż 33
845
905
970
780
840
900
24 Ąż 33
24 Ąż 33
24 Ąż 33
-
-
-
-
-
-
-
-
-
800
850
900
820
872
923
995
1045
1095
930
980
1030
24 Ąż 27
24 Ąż 27
24 Ąż 27
995
1045
1095
930
980
1030
24 Ąż 33
24 Ąż 33
24 Ąż 33
1020
1070
1120
950
1000
1050
24 Ąż 33
24 Ąż 33
28 Ąż 33
-
-
-
-
-
-
-
-
-
1000
1100
1200
1025
1130
1230
1195
1305
1420
1130
1240
1350
28 Ąż 27
28 Ąż 27
32 Ąż 27
1195
1305
1420
1130
1240
1350
28 Ąż 33
28 Ąż 33
32 Ąż 33
1235
1345
1465
1160
1270
1380
28 Ąż 39
28 Ąż 39
32 Ąż 39
-
-
-
-
-
-
-
-
-
1350
1500
1385
1540
1575
1730
1505
1660
32 Ąż 27
36 Ąż 27
1575
1730
1505
1660
32 Ąż 33
36 Ąż 33
1630
1795
1540
1700
36 Ąż 45
40 Ąż 45
-
-
-
-
-
-

note The soft gasket includes the asbestos joint sheet -rubber mold cutting - inserted fabric rubber
          cutting , gracile gasket ,and TFE cutting gasket.
        The standard measurement table is same as reference table1 JIS B 2202-1984pipe ' gasket of
          flange'
        The application flange is JIS B 2220, JIS B 2240
        The asbestos joint sheet can not be recommened for 2K and 5K. When used for 10K and 16K ,
          it is impossible to seal for gas.


For FF piping flange of whole space type gasket (FF) unit:mm

flange specification diameter
 Inner diameter of gasket D1
D1
75
150
300
A
B
outer diameter
of
D2
center diameter of
C
n Ąż h
outer diameter
of
D2
center diameter of
C
n Ąż h
outer diameter
of
D2
center diameter of
C
n Ąż h
15
20
25
1/2
3/4
1
22
28
34
-
-
-
-
-
-
-
-
-
89
98
108
60.3
69.9
79.4
4 Ąż 16
4 Ąż 16
4 Ąż 16
95
117
124
66.7
82.5
88.9
4 Ąż 16
4 Ąż 20
4 Ąż 20
(32)
40
50
(11/4)
11/2
2
44
49
61
-
-
-
-
-
-
-
-
-
117
127
152
88.9
98.4
120.6
4 Ąż 16
4 Ąż 16
4 Ąż 20
133
156
165
98.4
114.3
127.0
4 Ąż 20
4 Ąż 23
8 Ąż 20
65
80
(90)
21/2
3
(31/2)
77
90
103
-
-
-
-
-
-
-
-
-
178
191
216
139.7
152.4
177.8
4 Ąż 20
4 Ąż 20
8 Ąż 20
191
210
229
149.2
168.3
184.1
8 Ąż 23
8 Ąż 23
8 Ąż 23
100
(125)
150
4
(5)
6
116
143
169
-
-
-
-
-
-
-
-
-
229
254
279
190.5
215.9
241.3
8 Ąż 20
8 Ąż 23
8 Ąż 23
254
279
318
200.0
234.9
269.9
8 Ąż 23
8 Ąż 23
12 Ąż 23
200
250
300
8
10
12
220
275
326
-
-
-
-
-
-
-
-
-
343
406
483
298.4
361.4
431.8
8 Ąż 23
12 Ąż 26
12 Ąż 26
381
445
520
330.2
387.3
450.8
12 Ąż 26
16 Ąż 29
16 Ąż 32
350
400
450
14
16
18
358
408
459
-
-
-
-
-
-
-
-
-
535
595
635
476.2
539.7
577.8
12 Ąż 29
16 Ąż 29
16 Ąż 32
585
650
710
514.3
571.5
628.6
20 Ąż 32
20 Ąż 35
24 Ąż 35
500
600
650
20
24
26
510
612
663
-
-
762
-
-
723.9
-
-
36 Ąż 20
700
815
786
635.0
749.3
744.5
20 Ąż 32
20 Ąż 35
36 Ąż 23
775
915
867
685.8
812.8
803.3
24 Ąż 35
24 Ąż 42
32 Ąż 35
700
750
800
28
30
32
714
765
816
813
864
914
774.7
825.5
876.3
40 Ąż 20
44 Ąż 20
48 Ąż 20
837
887
941
795.3
846.1
900.1
40 Ąż 23
44 Ąż 23
48 Ąż 23
921
991
1054
857.2
920.8
977.9
36 Ąż 35
36 Ąż 39
32 Ąż 42
850
900
950
34
36
38
867
917
968
965
1033
1084
927.1
992.2
1043.0
52 Ąż 20
40 Ąż 23
40 Ąż 23
1005
1057
1124
957.3
1009.6
1070.0
40 Ąż 26
44 Ąż 26
40 Ąż 29
1108
1172
1222
1031.9
1089.0
1139.8
36 Ąż 42
32 Ąż 45
36 Ąż 45
1000
1050
1100
40
42
44
1019
1070
1121
1135
1186
1251
1093.8
1144.6
1203.3
44 Ąż 23
48 Ąż 23
36 Ąż 26
1175
1226
1276
1120.8
1171.6
1222.4
44 Ąż 29
48 Ąż 29
52 Ąż 29
1273
1334
1384
1190.6
1244.6
1295.4
40 Ąż 45
36 Ąż 48
40 Ąż 48
1150
1200
1250
46
48
50
1171
1222
1273
1302
1353
1403
1254.1
1604.9
1355.7
40 Ąż 26
44 Ąż 26
44 Ąż 26
1341
1392
1443
1284.3
1335.1
1385.9
40 Ąż 32
44 Ąż 32
48 Ąż 32
1460
1511
1562
1365.2
1416.0
1466.8
36 Ąż 51
40 Ąż 51
44 Ąż 51
1300
1350
1400
52
54
56
1324
1375
1425
1457
1508
1575
1409.7
1460.5
1520.8
48 Ąż 26
48 Ąż 26
40 Ąż 29
1494
1549
1600
1436.7
1492.2
1543.0
52 Ąż 32
56 Ąż 32
60 Ąż 32
1613
1673
1765
1571.6
1578.0
1651.0
48 Ąż 51
48 Ąż 51
36 Ąż 61
1450
1500
58
60
1476
1527
1626
1676
1571.6
1622.4
44 Ąż 29
44 Ąż 29
1675
1726
1611.3
1662.1
48 Ąż 35
52 Ąż 35
1827
1878
1712.9
1763.7
40 Ąż 61
40 Ąż 61

note The hard gasket includes asbestos joint sheet ,rubber mold cutting - inserted fabric rubber
          cutting , gracile gasket , TFE cutting gasket.
        This measurement table is same as standard measurement for whole space of JPI-7s-16-
          85'standard measurement of non-metal gasket for piping
        The application flange can be used for JPI-7s-15-85, JPI-7s-43-84 as well as ANSI B 16.5
         copper flange
       In case the asbestos joint sheet is used as FF , it is difficult to seal for fluid of gas type
       Because of having a specification diameter of ( ) , No using is better as possible as


for ANSI piping flange of whole space type gasket (FF) unit:mm

specification diameter of flange

inner diameter
D1

ANSI B 16.1 Cast Iron flange
ANSI B16.5 Steel flange
25
125
150

outer diameter
D2

center diameter
C

n Ąż h

outer diameter
D2

center diameter
C

n Ąż h

outer diameter
D2

center diameter
C

n Ąż h
1/2B
3/4
1
21.3
26.9
33.3
-
-
-
-
-
-
-
-
-
-
-
108.0
-
-
79.2
-
-
4 Ąż 15.7
88.9
98.6
108.0
60.5
69.8
79.2
4 Ąż 15.7
4 Ąż 15.7
4 Ąż 15.7
11/4
11/2
2
42.2
48.5
60.5
-
-
-
-
-
-
-
-
-
117.3
127.0
152.4
88.9
98.6
120.6
4 Ąż 15.7
4 Ąż 15.7
4 Ąż 19.0
117.3
127.0
152.4
88.9
98.6
120.6
4 Ąż 15.7
4 Ąż 15.7
4 Ąż 19.0
21/2
3
31/2
73.2
88.9
101.6
-
-
-
-
-
-
-
-
-
177.8
190.5
215.9
139.7
152.4
177.8
4 Ąż 19.0
4 Ąż 19.0
8 Ąż 19.0
177.8
190.5
215.9
139.7
152.4
177.8
4 Ąż 19.0
4 Ąż 19.0
8 Ąż 19.0
4
5
6
114.3
141.2
168.1
228.6
254.0
279.4
190.5
215.9
241.3
8 Ąż 19.0
8 Ąż 19.0
8 Ąż 19.0
228.6
254.0
279.4
190.5
215.9
241.3
8 Ąż 19.0
8 Ąż 22.4
8 Ąż 22.4
228.6
254.0
279.4
190.5
215.9
241.3
8 Ąż 19.0
8 Ąż 22.4
8 Ąż 22.4
8
10
12
218.9
273.0
323.8
342.9
406.4
482.6
298.4
362.0
431.8
8 Ąż 19.0
12 Ąż 19.0
12 Ąż 19.0
342.9
406.4
482.6
298.4
362.0
431.8
8 Ąż 22.4
12 Ąż 25.4
12 Ąż 25.4
342.9
406.4
482.6
298.0
362.0
431.8
8 Ąż 22.4
12 Ąż 25.4
12 Ąż 25.4
14
16
18
355.6
406.4
457.2
533.4
596.9
635.0
476.2
539.8
577.8
12 Ąż 22.4
16 Ąż 22.4
16 Ąż 22.4
533.4
596.9
635.0
476.2
539.8
577.8
12 Ąż 28.4
16 Ąż 28.4
16 Ąż 31.8
533.4
596.9
635.0
476.2
539.8
577.8
12 Ąż 28.4
16 Ąż 28.4
16 Ąż 31.8
20
24
30
508.0
609.6
762.0
698.5
812.8
984.2
635.0
749.0
914.4
20 Ąż 22.4
20 Ąż 22.4
28 Ąż 25.4
698.5
812.8
984.2
635.0
749.3
914.4
20 Ąż 31.8
20 Ąż 35.1
28 Ąż 35.1
698.5
812.8
-
635.0
749.3
-
20 Ąż 31.8
20 Ąż 35.1
-
36
42
48
914.4
1066.8
1219.2
1168.4
1346.2
1511.3
1085.8
1257.3
1422.4
32 Ąż 25.4
36 Ąż 28.4
44 Ąż 28.4
1168.4
1346.2
1511.3
1085.8
1257.3
1422.4
32 Ąż 41.1
36 Ąż 41.1
44 Ąż 41.1
-
-
-
-
-
-
-
-
-
54
60
72
1371.6
1524.0
1828.8
1682.8
1854.2
2197.0
1593.8
1759.0
2095.5
44 Ąż 28.4
52 Ąż 31.8
60 Ąż 31.8
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
84
96
2133.6
2438.4
2533.6
2876.6
2425.7
2755.9
64 Ąż 35.1
68 Ąż 35.1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-

note The hard gasket includes asbestos joint sheet ,rubber mold cutting - inserted fabric rubber
          cutting , gracile gasket , TFE cutting gasket.
        This measuremnet table is converted from "inch" measurement to "mm" measurement of ANSI
          B 1621-1976 Nonmetallic Flat Gaskets for Pipe Flange
        The applying flange isANSI B16.1(Cast Iron Flange) ANSI B 16.5(Steel Pipe Flange)
        The usage of asbestos joint can not recommended for class 25 flange.


For ring gasket (RF) JIS pipe flange unit:mm

flange specification diameter
for flate pressure flange
 for flange of large caliber
plug welding type
75
150
300
175
350
A
B
inner diam-eter
D1
outer diam-eter
D2
inner diam-eter
D1
outer diam-eter
D2
inner diam-eter
D1
outer diam-eter
D2
inner diam-eter
D1
outer diam-eter
D2
inner diam-eter
D1
outer diam-eter
D2
15
20
25
1/2
3/4
1
-
-
-
-
-
-
22
28
34
47
56
68
22
28
34
53
66
72
-
-
-
-
-
-
-
-
-
-
-
-
(32)
40
50
(11/4)
11/2
2
-
-
-
-
-
-
44
49
61
75
85
104
44
49
61
82
94
110
-
-
-
-
-
-
-
-
-
-
-
-
65
80
(90)
21/2
3
(31/2)
-
-
-
-
-
-
77
90
103
123
135
161
77
90
103
129
148
164
-
-
-
-
-
-
-
-
-
-
-
-
100
(125)
150
4
(5)
6
-
-
-
-
-
-
116
143
169
173
196
221
116
143
160
180
215
250
-
-
-
-
-
-
-
-
-
-
-
-
200
250
300
8
10
12
-
-
-
-
-
-
220
275
326
277
338
408
220
275
326
306
360
420
-
-
-
-
-
-
-
-
-
-
-
-
350
400
450
14
16
18
-
-
-
-
-
-
358
408
459
449
512
547
358
408
459
484
538
595
-
-
-
-
-
-
-
-
-
-
-
-
500
600
20
24
-
-
-
-
510
612
604
715
510
612
651
772
-
-
-
-
-
-
-
-
650
700
750
26
28
30
663
714
765
705
756
807
663
714
765
722
773
824
663
714
765
769
822
883
711
762
813
737
787
845
724
775
826
749
800
857
800
850
900
32
34
36
816
867
917
857
908
970
816
867
917
878
932
984
816
867
917
937
991
1045
864
911
962
895
949
1000
876
927
984
908
959
1022
950
1000
1050
38
40
42
968
1019
1070
1021
1072
1123
968
1019
1070
1042
1092
1143
968
1019
1070
1096
1146
1197
1013
1064
1118
1051
1102
1162
1035
1080
1130
1073
1124
1181
1100
1150
1200
44
46
48
1121
1171
1222
1178
1229
1280
1121
1171
1222
1194
1253
1304
1121
1171
1222
1248
1315
1365
1168
1219
1270
1213
1264
1314
1191
1241
1292
1241
1292
1343
(1250)
(1300)
1350
(50)
(52)
54
1273
1324
1375
1330
1384
1435
1273
1324
1375
1354
1405
1461
1273
1324
1375
1416
1467
1527
1321
1372
1422
1365
1422
1473
-
-
-
-
-
-
(1400)
(1450)
1500
(56)
(58)
60
1425
1476
1527
1492
1543
1594
1425
1476
1527
1511
1577
1625
1425
1476
1527
1591
1651
1702
-
-
1575
-
-
1620
-
-
-
-
-
-

note, The soft gasket includes asbestos joint sheet ,rubber mold cutting - inserted fabric rubber
           cutting , gracile gasket , TFE cutting gasket
        This measurement table is same as measurement of reference table 3-4 and JPI-7s-16-85
           'measurment of non mental gasket for pipe '
        The applying flange is JPI-7s-15-84, B 2210, JPI-7s-43-85 .But the ANSI-B16.5 steel flange ,
           API-stol 605-1980 and flange standard measurement of plug welding type can be used with
           TAYLOR FORGE flange
        The measurement of below () is applied with standard flange measurement of JPI-7s-43-72
        It is good for no using specification diameter of () as possible as .


For ring gasket (RF) JIS pipe flange unit:mm

flange specification diameter

150
300
A
B

inner diameter
D1

outer diameter
D2

inner diameter
D1

outer diameter
D2

15
20
25
1/2
3/4
1
25
33
38
47
56
66
25
33
38
53
66
72
(32)
40
50
(11/4)
11/2
2
48
54
73
75
85
104
48
54
73
82
94
110
65
80
(90)
21/2
3
(31/2)
86
108
121
123
135
161
86
108
121
129
148
164
100
(125)
150
4
(5)
6
132
160
190
173
196
221
132
160
190
180
215
250
200
250
300
8
10
12
238
287
344
277
338
408
238
287
344
306
360
420
350
400
450
14
16
18
376
427
490
449
512
547
376
427
490
484
538
595
500
600
20
24
535
643
604
715
535
643
651
772

note The gasket material is usually asbestos joint sheet , and the tickness of gasket is to be
          0.8mm or 1.5mm
        This measurement table is same as group 2 measurement of JPI-7s-16-85 'measurement of
          non mental gasket for pipe'
        The applying flange can be used JPI-7s015084, B 2210 as well as steel flange
        It is good for using measurement of group2 in order to seal for fluid of gas
        It is better not to use specification diameter of () as possible as .


Gasket for PTFE JIS pipe inserted shape and grooved shape unit:mm

flange specification diameter

inserted shape

grooved shape

outer diameter
of gasket D1

outer diameter
of gasket D2

outer diameter
of gasket D1

outer diameter
of gasket D2
10A
15
20
18
22
28
38
42
50
28
32
38
38
42
50
25
32
40
35
43
49
60
70
75
45
55
60
60
70
75
50
65
80
61
77
90
90
110
120
70
90
100
90
110
120
90
100
125
102
115
141
130
145
175
110
125
150
130
145
175
150
200
250
167
218
270
215
260
325
190
230
295
215
260
325
300
350
400
321
359
410
375
415
475
340
380
440
375
415
575
450
500
550
460
513
564
523
575
625
483
535
585
523
575
625
600
650
700
615
667
718
675
727
777
635
682
732
675
727
777
750
800
850
770
820
872
832
882
934
787
837
889
832
882
934
900
1000
1100
923
1025
1130
987
1092
1192
937
1042
1142
987
1092
1192
1200
1300
1350
1230
1335
1385
1292
1392
1442
1237
1337
1387
1292
1392
1442
1400
1500
1435
1540
1492
1592
1437
1537
1492
1592

note The gasket material is usually used with asbestos joint sheet
        This measurement table is same as measurement of reference table 2 of JIS B 2202-1984,
          KS B 1519-87 'gasket measurement of pipe flange'
        application flange is JIS B 2202, KS B 1519-87


PTFE MSS PIPE FLANGE unit:mm

flange specification diameter

outer diameter of gasket D1

outer diameter of gasket D2
150
300
12B
14
16
323.8
355.6
406.4
409.4
450.8
514.3
422.1
485.6
539.8
18
20
22
457.2
508.0
558.8
549.1
606.6
660.4
596.9
654.0
704.8
24
26
28
609.6
660.4
711.2
717.6
774.7
831.8
774.7
835.2
898.7
30
32
34
762.0
812.8
863.6
882.6
939.8
990.6
952.5
1006.3
1057.1
36
38
40
914.4
965.2
1016.0
1047.8
1111.2
1162.0
1117.6
1054.1
1114.6
42
44
46
1066.8
1117.6
1168.4
1219.2
1276.4
1327.2
1165.4
1219.2
1273.0
48
50
52
1219.2
1270.0
1320.8
1384.3
1435.1
1492.2
1323.8
1378.0
1428.8
54
56
58
60
1371.6
1422.4
1473.2
1524.0
1549.4
1606.6
1663.7
1714.5
1492.2
1543.0
1593.8
1644.6

note The soft gasket includes asbestos joint sheet
         ,rubber mold cutting - inserted fabric rubber
          cutting , gracile gasket , TFE cutting gasket
        This measuremnet table is converted from "inch"
          measurement to "mm" measurement of ANSI B
          1621-1976 Nonmetallic Flat Gaskets for Pipe
          Flanges
        application flange is MSS-SP-44-1982 Steel line
          Flange
union table for PTFE unit:mm

union specifi-
cation diameter

inner diameter
D1

outer diameter
D2

1/8B
1/4
3/8
13
17
21
18
23
28
1/2
3/4
1
25
31
39
32
39
48
11/4
11/2
2
47
54
66
57
64
78
21/2
3
31/2
82
96
100
96
111
126
4
5
6
122
151
178
141
170
200

note The joint sheet is used for gasket
         material generally.
        The standard measurement is
         established with nichias by standard
         of F type standard measurement of JIS
         B 230 screw type steel piping
        The gasket thickness is
         recommended at 2.0mm or 1.5mm