API 6A R Series Octagonal Ring Joint Gasket

Ring Joint gasket come in two basic types, an oval cross section and an octagonal cross section .These basic shapes are used in pressures up to 10,000 psi. The dimensions are standardized and require specially grooved flanges. The octagonal cross section has a higher sealing efficiency than.

Product Details
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Ring Joint gasket come in two basic Shapes, one is oval cross section and another is octagonal cross section .

These basic shapes are used in pressures up to 10,000 psi. The dimensions are standardized and require specially grooved flanges. The octagonal cross section has a higher sealing efficiency than the oval and would be the preferred gasket.

 

However, only the oval cross section can be used in the old type round bottom groove. The newer flat bottom groove design will accept either the oval or the octagonal cross section. The sealing surfaces on the ring joint grooves must be smoothly finished to 63 micro inches and to be free of objectionable ridges, tool or chatter marks. They seal by an initial line contact or a edging action as the compressive forces are applied.

 

The hardness of the ring should always be less than the hardness of the flanges to prevent flange deformation. Dimensions for API ring joint gaskets and grooves are covered in ASME B16.20 and API6A

 

 We stocks a wide range of sizes and materials ready for immediate shipment from R11 to R105. Stock materials include large variety of metals.


1.Models

 

                                                          R OVAL       R OCTAGONAL     RX                 BX


2.Ring Joint Material and Hardness

 

  Material Identi-ficationDIN Material No.B.S. Material AISI-ASTM UNSHardness   (max)*Temperature   (0 C)* Density (gr/cm3)
Brinell   HBRockwell   BMinMax
Soft IronD---9056-605007.85
Low Carbon SteelS---12068-405007.85
ASTM A182-F5F51.7362-A182FS13072-406507.9
SS 304S3041.4301304S15/16/1330416083-2505507.9
SS 304LS304L1.4306304S11304L16083-2505507.9
SS 309S3091.4828304S2430916083-2505507.9
SS 316S3161.4401316S1631616083-10010007.9
SS 316LS316L1.4404316S11/13316L16083-1005507.9
SS 316TiS316TI1.4571320S31316Ti16083-1005507.8
SS 321S3211.4541321S12/49/8732116083-2505507.9 0
SS 347S3471.455347S3134716083-2505007.9
SS 410S4101.4410S2141017086-208507.8
254SMO6Mo1.4547-S3125418089-1005008
904LS904L1.4539-SUS890L18089-25010008
F51F511446231853S31803/32205230   99-403007.8
F53F5314410-S32750230   99-403007.8
F55F551.4501-S32760250   --403007.8
AluminiumAL   10503.02551BA9105030--2503002.71
SilverAg---28   --25075010.5
CopperCu2.009C106C1220080   --2504008.9
BrassCuZn3720321CZ108C2720060   --1003508.5
Nickel 200Ni   2002.40663072-76   NA11NO220011062-2506008.9
Monel 400MONEL4002.4363072-76   NA13NO4400160831256008.8
Inconel 600INC6002.48163072-76   NA14NO660016083-1009508.4
Inconel 625INC6252.48563072-76  NA 21NO662521095-504508.44
Inconel 718INC718--NO771816083-1259508.24
Incoloy 800INC8001.48763072-76   NA15NO880016083-1008508
Incoloy 825INC8252.48583072-76   NA16NO882519592-1004508.14
Hastelloy B2HB22.4617-NI066523099-2004509.2
HastelloyC276HC2762.4819-NI027621095-2004508.9
TitaniumTi23.7025TA2R50400215   96-2503504.5


3. The size Chart


3.1 Ring-joint gaskets, type R, dimensions according to ASME B16.20, API Std 6 A

for flanges to ASME B16.5 and ASME B16.47, series A

NPSclassRing no.Ring   dimensions
dmbhh1
1/2 300   to 600 R 11 34,13 6,35 11,11 9,52 
1/2 900,   1 500 R 12 39,68 7,93 14,28 12,7 
 1/22500R 1342,867,9314,2812,7
3/4 300   to 600 R 13 42,86 7,93 14,28 12,7 
3/4 900,   1500 R 14 44,45 7,93 14,28 12,7 
1   150R 1547,627,9314,2812,7
3/4 2500 R 16 50,8 7,93 14,28 12,7 
300   to 1500 R 16 50,8 7,93 14,28 12,7 
1 1/4150R 1757,157,9314,2812,7
2500 R 18 60,32 7,93 14,28 12,7 
1 1/4 300   to 1500 R 18 60,32 7,93 14,28 12,7 
1 1/2150R 1965,087,9314,2812,7
1 1/2 300   to 1500 R 20 68,26 7,93 14,28 12,7 
1 1/4 2500 R 21 72,23 11,11 17,46 15,87 
2   150R 2282,557,9314,2812,7
1 1/2 2500 R 23 82,55 11,11 17,46 15,87 
2 2300   to 600 R 23 82,55 11,11 17,46 15,87 
900,   1500R 2495,2511,1117,4615,87
2 1/2 150 R 25 101,6 7,93 14,28 12,7 
2500 R 26 101,6 11,11 17,46 15,87 
2 1/2300   to 600R 26101,611,1117,4615,97
2 1/2 900,   1500 R 27 107,95 11,11 17,46 15,87 
2 1/2 2500 R 28 111,12 12,7 19,05 17,46 
3   150R 29114,37,9314,2812,7
300   to 600 R 30 117,47 11,11 17,46 15,87 
300   to 900 R 31 123,82 11,11 17,46 15,87 
3   2500R 32127,012,719,0517,46
3  / 150 R 33 131,76 7,93 14,28 12,7 
3  / 300   to 600 R 34 131,76 11,11 17,46 15,87 
3   1500R 35136,5211,1117,4615,87
150 R 36 149,22 7,93 14,28 12,7 
300   to 900 R 37 149,22 11,11 17,46 15,87 
4   2500R 38157,1615,8722,2220,64
1500 R 39 161,92 11,11 17,46 15,87 
150 R 40 171,45 7,93 14,28 12,7 
5   300   to 900R 41180,9711,1117,4615,87
2500 R 42 190,5 19,05 25,4 23,81 
150 R 43 193,67 7,93 14,28 12,7 
5   1500R 44193,6711,1117,4615,87
300   to 900 R 45 211,13 11,11 17,46 15,87 
1500       2500R 46 211,13 12,7 19,05 17,46 
6   R 47228,619,0525,423,81
150 R 48 247,65 7,93 14,28 12,7 
300   to 900 R 49 269,87 11,11 17,46 15,87 
8   1500R 50269,8715,8722,2220,64
2500 R 51 279,4 22,22 28,57 26,99 
10 150 R 52 304,8 7,93 14,28 12,7 
10   300   to 900R 53323,8511   ,1117,4615,87
10 1500 R 54 323,85 15,87 22,22 20,64 
10 2500 R 55 342,9 28,57 36,51 34,92 
12   150R 56381,07,9314,2812,7
12 300   to 900 R 57 381,0 11,11 17,46 15,87 
12 1500 R 58 381,0 22,22 28,57 26,99 
14   150R 59396,877,9314,2812,7
12 2500 R 60 406,4 31,75 39,68 38,1 
14 300   to 600 R 61 419,1 11,11 17,46 15,87 
14   900R 62419,115,8722,2220,64
14 1500 R 63 419,1 25,4 33,33 31,75 
16 150 R 64 454,0 7,93 14,28 12,7 
16   300   to 600R 65469,911,1117,4615,87
16 900 R 66 469,9 15,87 22,22 20,64 
16 1500 R 67 469,9 28,57 36,51 34,92 
18   150R 68517,527,9314,2812,7
18 300   to 600 R 69 533,4 11,11 17,46 15,87 
18 900 R 70 533,4 19,05 25,4 23,81 
18   1500R 71533,428,5736,5134,92
20 150 R 72 558,8 7,93 14,28 12,7 
20 300   to 600   900R 73 584,2 12,7 19,05 17,46 
20   R 74584,219,0525,423,81
20 1500 R 75 584,2 31,75 39,68 38,1 
24 150 R 76 673,1 7,93 14,28 12,7 
24   300   to 600R 77692,1515,8722,2220,64
24 900 R 78 692,15 25,4 33,33 31   ,75 
24 1500 R 79 692,15 34,92 44,4541   ,27 
22   150R 80615,957,9312,7
22 300   to 600 R 81 635,0 14,28 19,05 
10000 R 82 57,15 11,11 15,87 
10000R 8463,511,1115,87
10000 R 85 79,37 12,7 17,46 
5   10000 R 86 90,49 15,87 20,63 
10000R 87100,0115,8720,63
10000 R 88 123,83 19,05 23,81 
10000 R 89 114,3 19,05 23,81 
10000R 90155,5822,2226,98
10000R 91 260,35 31,75 17,4638,1 
300,   400, 600R 92 228,6 11,11 15,87 
26   R 93749,319,0523,81
28 300,   400, 600 R 94 800,1 19,05 23,81 
30 300,   400, 600 R 95 857,25 19,05 23,81 
32   300,   400, 600R 96914,422,2226,98
34 300,   400, 600 R 97 965,2 22,22 26,98 
36 300,   400, 600 R 98 1022,35 22,22 26,98 
2000,   3000R 99234,9511,1115,87
26 900 R 100 749,3 28,57 34,92 
28 900 R 101 800,1 31,75 38,1 
30   900R 102857,2531,7538,1
32 900 R 103 914,4 31,75 38,1 
34 900 R 104 965,2 34,92 41,27 
36   900R 1051022,3534,9241,27

 

3.2  Ring-joint gaskets, type RX dimension chart, dimensions according to ASME B16.20, API Std 6 A  for flanges to ASME B16.5 and ASME B16.47, series A

 

Ring   dimensions
NPSclassRing   no.dbchh
1 1/22000,   3000, 5000RX   2076,28,734,6219,053,18
22000RX   2393,2711,916,4525,44,24
23000,   5000RX   24105,9711,916,4525,44,24
3 1/85000RX   25109,548,734,6219,053,18
2 1/22000RX   26111,9211,916,4525,43,78
2 1/23000,   5000RX   27118,2711,916,4525,44,24
32000,   3000RX   31134,5411,916,4525,44,24
35000RX   35147,2411,916,4525,44,24
42000,   3000RX   37159,9411,916,4525,44,24
45000RX   39172,6411,916,4525,44,24
52000,   3000RX   41191,6911,916,4525,44,24
55000RX   44204,3911,916,4525,44,24
62000,   3000RX   45221,8511,916,4525,44,24
65000RX   46222,2513,496,6828,584,78
8crossover   flangeRX   47245,319,8410,3441,286,88
82000,   3000RX   49280,5911,916,4525,44,24
85000RX   50283,3716,678,5131,755,28
102000,   3000RX   53334,5711,916,4525,44,24
105000RX   54337,3416,678,5131,755,28
122000,   3000RX   57391,7211,916,4525,44,24
145000RX   63441,7226,9914,7850,88,46
162000RX   65480,6211,916,4525,44,24
163000RX   66483,3916,678,5131,755,28
182000RX   69544,111,916,4525,44,24
183000RX   70550,119,8410,3441,286,88
202000RX   73596,113,496,6831,755,28
203000RX   74600,8719,8410,3441,286,88
RX 8267,8711,916,4525,44,24
RX   8474,2211,916,4525,44,24
RX 8590,0913,496,6825,44,24
RX 86103,5815,088,5128,584,78
RX   87113,115,088,5128,584,78
RX 88139,317,4610,3431,755,28
RX 89129,7818,2610,3431,755,28
RX   90174,6219,8412,1744,457,42
RX   91286,9430,1619,8145,247,54
1 1/45000RX   99245,6711,916,4525,44,24
RX   20151,465,743,211,31,45
1 3/5000RX   20562,315,563,0511,11,83
2 1/5000RX   21097,639,535,4119,053,18
45000RX   215140,8911,915,3325,44,24
4x 41/45000RX   215140,8911,915,3325,44,24

 

3.3 Ring-joint gasket, type BX Dimension chart, according to API Std 6 A for API 6BX flanges


 

NPS

 

class

 

Ring no

Ring dimensions

1* drilled ho

d1

b

h

111/16

10000, 15000

BX 150

72,19

9,30

9,30

1,6

113/16

10000, 15000, 20000

BX 151

76,40

9,63

9,63

1,6

2 1/

10000, 15000, 20000

BX 152

84,68

10,24

10,25

1,6

2 9/16

10000, 15000, 20000

BX 153

100,94

11,38

11,38

1,6

3 1/16

10000, 15000, 20000

BX 154

116,84

12,40

12,40

1,6

4 1/

10000, 15000, 20000

BX 155

147,96

14,22

14,22

1,6

7 1/16

10000, 15000, 20000

BX 156

237,92

18,62

18,62

3,2

9

10000, 15000

BX 157

294,46

20,98

20,98

3,2

11

10000, 15000

BX 158

352,04

23,14

23,14

3,2

13 5/

10000

BX 159

426,72

25,70

25,70

3,2

13 5/

5000

BX 160

402,59

13,74

23,83

3,2

16 3/

 

5000, 10000

BX 161

491,41

16,20

28,07

3,2

16 3/

BX 162

475,49

14,22

14,22

1,6

18 3/

5000

BX 163

556,16

17,37

30,10

3,2

18 3/

10000

BX 164

570,56

24,59

30,10

3,2

21 1/

5000

BX 165

624,71

18,49

32,03

3,2

21 1/4

10000

BX 166

640,03

26,14

32,03

3,2

26 3/

2000

BX 167

759,36

13,11

35,86

1,6

26 3/

3000

BX 168

765,25

16,05

35,86

1,6

5 1/8

10000

BX 169

173,52

12,93

15,84

1,6

9

 

 

2000,  3000

BX 170

218,03

14,22

14,22

1,6

11

BX 171

267,44

14,22

14,22

1,6

13 5/

BX 172

333,07

14,22

14,22

1,6

30

BX 303

852,75

16,97

37,95

1,6

* A compensating drilled hole on the periphery of the ring.

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