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Ring Joint Gasket R - Style No:TRTR

Ring Joint Gaskets are heavy duty, high-pressure gaskets largely used in offshore petrochemical applications.

They are precision-engineered components designed to be used in conjunction with precision-machined flanges.

All our Ring Joints are manufactured according to ASME B16.20 and API 6A.

Ring Joint Gasket Type R ( Oval/ Octagonal )

R Style is available in both oval and octagonal configurations, the octagonal type is recommended in higher sealing efficiency, both types are interchangeable on modern octagonal type grooved flanges. However,only the oval cross section can be used in the old type round bottom groove.

Drawing:


Pic:

Material:

Material

Brinell
Hardness

Temperature
Limitation

Ldentificati On

Soft Iron

90

-60 ~ 500 ℃

D

Low Carbon Steel

120

-40 ~ 500 ℃

S

4-6% Cr 1/2 %Mo

130

-250 ~ 500 ℃

F5

304

160

-250 ~ 550 ℃

S304

316

160

-110 ~ 550 ℃

S316

321

160

-250 ~ 550 ℃

S321

347

160

-250 ~ 550 ℃

S347

410

170

-20 ~ 500 ℃

S410

Monel (N04400)

135

450°℃

N04400

UNS N08904

180

400°℃

904L

Inconel 625

-

450°℃

625

Incoloy 825

-

450°℃

825

Hastelloy C-276

450°℃

C-276

Titanium

-

450°℃

吀I

Standard

Dimensions for Type R Octagonal and Oval Ring Gaskets to Suit ASME B16.20 and API 6A


 

 

 

 

 

Ring Number

Pitch Diameter of Ring (P)

Width of Ring (A)

Oval (B)

Octagonal (H)

Width of Flat on Octagonal Ring (C)

Radius in Octagonal Ring (R1)

mm

mm

mm

mm

mm

mm

R-11

34.14

6.35

11.2

9.7

4.32

1.5

R-12

39.7

7.95

14.2

12.7

5.23

1.5

R-13

42.88

7.95

14.2

12.7

5.23

1.5

R-14

44.45

7.95

14.2

12.7

5.23

1.5

R-15

47.63

7.95

14.2

12.7

5.23

1.5

R-16

50.8

7.95

14.2

12.7

5.23

1.5

R-17

57.15

7.95

14.2

12.7

5.23

1.5

R-18

60.33

7.95

14.2

12.7

5.23

1.5

R-19

65.1

7.95

14.2

12.7

5.23

1.5

R-20

68.28

7.95

14.2

12.7

5.23

1.5

R-21

72.24

11.13

17.5

16

7.75

1.5

R-22

82.55

7.95

14.2

12.7

5.23

1.5

R-23

82.55

11.13

17.5

16

7.75

1.5

R-24

95.25

11.13

17.5

16

7.75

1.5

R-25

101.6

7.95

14.2

12.7

5.23

1.5

R-26

101.6

11.13

17.5

16

7.75

1.5

R-27

107.95

11.13

17.5

16

7.75

1.5

R-28

111.13

12.7

19.1

17.5

8.66

1.5

R-29

114.3

7.95

14.2

12.7

5.23

1.5

R-30

117.48

11.13

17.5

16

7.75

1.5

R-31

123.83

11.13

17.5

16

7.75

1.5

R-32

127

12.7

19.1

17.5

8.66

1.5

R-33

131.78

7.95

14.2

12.7

5.23

1.5

R-34

131.78

11.13

17.5

16

7.75

1.5

R-35

136.53

11.13

17.5

16

7.75

1.5

R-36

149.23

7.95

14.2

12.7

5.23

1.5

R-37

149.23

11.13

17.5

16

7.75

1.5

R-38

157.18

15.88

22.4

20.6

10.49

1.5

R-39

161.93

11.13

17.5

16

7.75

1.5

R-40

171.45

7.95

14.2

12.7

5.23

1.5

R-41

180.98

11.13

17.5

16

7.75

1.5

R-42

190.5

19.05

25.4

23.9

12.32

1.5

R-43

193.68

7.95

14.2

12.7

5.23

1.5

R-44

193.68

11.13

17.5

16

7.75

1.5

R-45

211.15

11.13

17.5

16

7.75

1.5

R-46

211.15

12.7

19.1

17.5

8.66

1.5

R-47

228.6

19.05

25.4

23.9

12.32

1.5

R-48

247.65

7.95

14.2

12.7

5.23

1.5

R-49

269.88

11.13

17.5

16

7.75

1.5

Ring Number

Pitch Diameter of Ring (P)

Width of Ring (A)

Oval (B)

Octagonal (H)

Width of Flat on Octagonal Ring (C)

Radius in Octagonal Ring (R1)

mm

mm

mm

mm

mm

mm

R-50

269.88

15.88

22.4

20.6

10.49

1.5

R-51

279.4

22.23

28.7

26.9

14.81

1.5

R-52

304.8

7.95

14.2

12.7

5.23

1.5

R-53

323.85

11.13

17.5

16

7.75

1.5

R-54

323.85

15.88

22.4

20.6

10.49

1.5

R-55

342.9

28.58

36.6

35.1

19.05

2.3

R-56

381

7.95

14.2

12.7

5.23

1.5

R-57

381

11.13

17.5

16

7.75

1.5

R-58

381

22.23

28.7

26.9

14.81

1.5

R-59

396.88

7.95

14.2

12.7

5.23

1.5

R-60

406.4

31.75

39.6

38.1

22.33

2.3

R-61

419.1

11.13

17.5

16

7.75

1.5

R-62

419.1

15.88

22.4

20.6

10.49

1.5

R-63

419.1

25.4

33.3

31.8

17.3

2.3

R-64

454.03

7.95

14.2

12.7

5.23

1.5

R-65

469.9

11.13

17.5

16

7.75

1.5

R-66

469.9

15.88

22.4

20.6

10.49

1.5

R-67

469.9

28.58

36.6

35.1

19.81

2.3

R-68

517.53

7.95

14.2

12.7

5.23

1.5

R-69

533.4

11.13

17.5

16

7.75

1.5

R-70

533.4

19.05

25.4

23.9

12.32

1.5

R-71

533.4

28.58

36.6

35.1

19.81

2.3

R-72

558.8

7.95

14.2

12.7

5.23

1.5

R-73

584.2

12.7

19.1

17.5

8.66

1.5

R-74

584.2

19.05

25.4

23.9

12.32

1.5

R-75

584.2

31.75

39.6

38.1

22.33

2.3

R-76

673.1

7.95

14.2

12.7

5.23

1.5

R-77

692.15

15.88

22.4

20.6

10.49

1.5

R-78

692.15

25.4

33.3

31.8

17.3

2.3

R-79

692.15

34.93

44.5

41.4

24.82

2.3

R-80

615.95

7.95

--

12.7

5.23

1.5

R-81

635.00

14.30

--

19.1

9.58

1.5

R-82

57.15

11.13

--

16.0

7.75

1.5

R-84

63.50

11.13

--

16.0

7.75

1.5

R-85

79.38

12.70

--

17.5

8.66

1.5

R-86

90.50

15.88

--

20.6

10.49

1.5

R-87

100.03

15.88

--

20.6

10.49

1.5

R-88

123.83

19.05

--

23.9

12.32

1.5

R-89

114.30

19.05

--

23.9

12.32

1.5

Ring Number

Pitch Diameter of Ring (P)

Width of Ring (A)

Oval (B)

Octagonal (H)

Width of Flat on Octagonal Ring (C)

Radius in Octagonal Ring (R1)

mm

mm

mm

mm

mm

mm

R-90

155.58

22.23

--

26.9

14.81

1.5

R-91

260.35

31.75

--

38.1

22.33

2.3

R-92

228.60

11.13

--

16.0

7.75

1.5

R-93

749.30

19.05

--

23.9

12.32

1.5

R-94

800.10

19.05

--

23.9

12.32

1.5

R-95

857.25

19.05

--

23.9

12.32

1.5

R-96

914.40

22.23

--

26.9

14.81

1.5

R-97

965.20

22.23

--

26.9

14.81

1.5

R-98

1022.35

22.23

--

26.9

14.81

1.5

R-99

234.95

11.13

--

16.0

7.75

1.5

R-100

749.30

28.58

--

35.1

19.81

2.3

R-101

800.10

31.75

--

38.1

22.33

2.3

R-102

857.25

31.75

--

38.1

22.33

2.3

R-103

914.40

31.75

--

38.1

22.33

2.3

R-104

965.20

34.93

--

41.4

24.82

2.3

R-105

1022.35

34.93

--

41.4

24.82

2.3




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