Studs and Rings Gaskets for API and ANSI Flanges
 
CLASS 150 ANSI 300 ANSI 600 ANSI
2000 API
900 ANSI
3000 API
1500 ANSI
5000 API
2500 ANSI 10,000 API 15,000 API 20,000 API CLASS
WORKING
PRESSURE
275 720 1400 ANSI
2000 API
2160 ANSI
5000 API
3600 ANSI
5000 API
7,000 10,000 15,000 20,000 WORKING
PRESSURE
SIZE NO. D. RF
L
RTJ
L.
RING
#
NO. D. RF
L
RTJ
L.
RING
#
NO. D. RF
L
RTJ
L.
RING
#
NO. D. RF
L
RTJ
L.
RING
#
NO. D. RF
L
RTJ
L.
RING
#
NO. D. RF
L
RTJ
L.
RING
#
NO. D. L RING
#
NO. D. L RING
#
NO. D. L RING
#
SIZE
1/2 4 1/2 2 1/4 4 1/2 2 1/2 3 R11 4 1/2 3 3 R11 4 3/4 4 4 R12 4 3/4 4 4 R12 4 3/4 4 3/4 4 3/4 R13 1/2
3/4 4 1/2 2 1/4 4 1/2 2 1/2 3 R11 4 1/2 3 3 R11 4 3/4 4 4 R12 4 3/4 4 4 R12 4 3/4 4 3/4 4 3/4 R13 3/4
1 4 1/2 2 1/2 3 R15 4 5/8 3 3 1/2 R16 4 5/8 3 1/2 3 1/2 R16 4 7/8 4 3/4 4 3/4 R16 4 7/8 4 3/4 4 3/4 R16 4 7/8 5 1/4 5 1/4 R18 1
1 1/4 4 1/2 2 1/2 3 R17 4 5/8 3 3 1/2 R18 4 5/8 3 3/4 3 3/4 R18 4 7/8 4 3/4 4 3/4 R18 4 7/8 4 3/4 4 3/4 R18 4 1 5 3/4 6 R21 1 1/4
1 1/2 4 1/2 2 3/4 3 1/4 R19 4 3/4 3 1/2 4 R20 4 3/4 4 4 R20 4 1 5 1/4 5 1/4 R20 4 1 5 1/4 5 1/4 R20 4 1 1/8 6 1/2 6 3/4 R23 1 1/2
1 13/16 8 3/4 5 1/4 Bx
151
8 7/8 5 1/2 Bx
151
8 1 7 1/2 Bx
151
1 13/16
2 4 5/8 3 3 1/2 R22 8 5/8 3 1/4 4 R23 8 5/8 4 4 1/4 R23 8 7/8 5 1/2 5 3/4 R24 8 7/8 5 1/2 5 3/4 R24 8 1 6 3/4 7 R26 2
2 1/16 8 3/4 5 1/4 Bx
152
8 7/8 6 Bx
152
8 1 1/8 8 1/4 Bx
152
2 1/16
2 1/2 4 5/8 3 1/4 3 3/4 R25 8 3/4 4 1/2 R26 8 3/4 4 1/2 4 3/4 R26 8 1 6 6 1/4 R27 8 1 6 6 1/4 R27 8 1 1/8 7 1/2 7 3/4 R28 2 1/2
2 9/16 8 3/4 - 5 R26 8 1 - 6 1/2 R27 8 1 - 6 1/2 R27 8 7/8 6 Bx
153
8 1 6 3/4 Bx
153
8 1 1/4 9 1/4 Bx
153
2 9/16
3 4 5/8 3 1/2 4 R29 8 3/4 4 4 3/4 R31 8 3/4 4 3/4 5 R31 8 7/8 5 1/2 5 3/4 R31 8 1 1/8 6 3/4 7 R35 8 1 1/4 8 1/2 8 3/4 R32 3
3 1/16 8 1 6 3/4 Bx
154
8 1 1/8 7 1/2 Bx
154
8 1 3/8 10 Bx
154
3 1/16
3 1/2 8 5/8 3 1/2 4 R33 8 3/4 4 1/4 5 R34 8 3/4 4 1/4 5 R34 8 7/8 5 1/4 5 1/2 R34 3 1/2
4 8 5/8 3 1/2 4 R36 8 3/4 4 1/4 5 R37 8 7/8 5 1/2 5 3/4 R37 8 1 1/8 6 1/2 6 3/4 R37 1 1/4 7 1/2 7 3/4 R39 8 1 1/2 9 3/4 10 1/4 R38 4
4 1/16 8 1 1/8 8 Bx
155
8 1 3/8 9 1/4 Bx
155
8 1 3/4 12 1/4 Bx
155
4 1/16
5 8 3/4 3 3/4 4 1/4 R40 8 3/4 4 1/2 5 1/4 R41 8 1 6 1/4 6 1/2 R41 8 1 1/4 7 1/4 7 1/2 R41 8 1 1/2 9 1/2 9 3/4 R44 8 1 3/4 11 1/2 12 1/4 R42 5
6 8 3/4 3 3/4 4 1/4 R43 12 3/4 4 3/4 5 1/2 R45 12 1 6 1/2 6 3/4 R45 12 1 1/8 7 1/2 7 1/2 R45 12 1 3/8 10 10 1/4 R46 8 2 13 1/2 14 R47 6
7 1/16 12 1 1/2 11 1/4 Bx
156
16 1 1/2 12 3/4 Bx
156
16 2 17 1/2 Bx
156
7 1/16
8 8 3/4 4 4 1/2 R48 12 7/8 5 1/4 6 R49 12 1 1/8 7 1/2 7 3/4 R49 12 1 3/8 8 1/2 8 3/4 R49 12 1 5/8 11 1/4 11 3/4 R50 12 2 15 15 1/2 R51 8
10 12 7/8 4 1/2 5 R52 16 1 6 6 3/4 R53 16 1 1/4 8 1/4 8 1/2 R53 16 1 3/8 9 9 1/4 R53 12 1 7/8 13 1/4 13 1/2 R54 12 2 1/2 19 20 R55 10
12 12 7/8 4 1/2 5 R56 16 1 1/8 6 1/2 7 1/4 R57 1 1/4 8 1/2 8 3/4 R57 20 1 3/8 9 3/4 10 R57 16 2 14 3/4 15 1/4 R58 12 2 3/4 21 22 R60 12
13 5/8 16 1 5/8 12 1/2 Bx
160
20 1 7/8 17 1/4 Bx
159
13 5/8
14 12 1 5 5 1/2 R59 20 1 1/8 6 3/4 7 1/2 R61 20 1 3/8 9 9 1/4 R61 20 1 1/2 10 1/2 11 R62 16 2 1/4 16 16 3/4 R63 14
16 16 1 5 1/4 5 3/4 R64 20 1 1/4 7 1/2 8 R65 20 1 1/2 9 3/4 10 R65 20 1 5/8 11 11 1/2 R66 16 1/2 17 1/2 18 1/2 R67 16
18 16 1 1/8 5 3/4 6 1/4 R68 24 1 1/4 7 1/2 8 1/4 R69 20 1 5/8 10 1/2 10 3/4 R69 20 1 7/8 12 3/4 13 1/4 R70 16 2 3/4 19 1/4 20 1/4 R71 18
20 20 1 1/8 6 6 1/2 R72 24 1 1/4 8 8 3/4 R73 24 1 5/8 11 1/4 11 1/2 R73 20 2 13 1/2 14 R74 16 3 21 22 1/4 R75 20
24 20 1 1/4 6 3/4 7 1/4 R76 24 1 1/2 9 10 R77 24 1 7/8 12 3/4 13 1/4 R77 20 2 1/2 17 17 3/4 R78 16 3 1/2 24 25 1/2 R79 24