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Ring Joint Gasket RX - Style No:TRTX

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 RX

RX is a pressure- energized adaptation of the standard Style R gasket.

The modified design uses a pressure - energized effect that improves

the efficiency of the seal as the internal pressure of the system increases.

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

Dimensions For Type RX Ring Gaskets Per ASME B16.20 and API 6A

API Ring Number

Sizes of Flange (Inches)

API Ring Number

Sizes of Flange (Inches)

2000 psi

2900 psi

3000 psi

2000 psi

2900 psi

3000 psi

RX 20

1 1/2

--

1 1/2

RX 65

16 3/4

--

--

RX 23

2 1/16

--

--

RX 66

--

--

16 3/4

RX 24

--

--

2 1/16

RX 69

18

--

--

RX 26

2 9/16

--

--

RX 70

--

--

18

RX 27

--

--

2 9/16

RX 73

21 1/4

--

--

RX 31

3 1/8

--

3 1/8

RX 74

--

--

20 3/4

RX 35

--

--

--

RX 82

--

1

--

RX 37

4 1/16

--

4 1/16

RX 84

--

1 1/2

--

RX 39

--

--

--

RX 85

--

2

--

RX 41

5 1/8

--

5 1/8

RX 86

--

2 1/2

--

RX 44

--

--

--

RX 87

--

3

--

RX 45

7 1/16

--

7 1/16

RX 88

--

4

--

RX 46

--

--

--

RX 89

--

3 1/2

--

RX 47

--

--

--

RX 90

--

5

--

RX 49

9

--

9

RX 91

--

10

--

RX 50

--

--

--

RX 99

8*

--

8*

RX 53

11

--

11

RX 201

--

--

--

RX 54

--

--

--

RX 205

--

--

--

RX 57

13 5/8

--

13 5/8

RX 210

--

--

--

RX 63

--

--

--

RX 215

--

--

--



Note:
(1) Rings RX-82 through RX-91 only require one pressure passage hole as illustrated.

The Center line of the hole shall be located at the midpoint of dimension C.
(2) Tolerance on these dimensions is (+0, -0.015”) (+0 mm,-0.38 mm).
(3) Tolerance on these dimensions is (+0.02”, -0) (+0.5 mm, -0 mm)
Tolerances:
OD = outside diameter of ring, +0.020”, -0 (+0.51 mm, -0 mm)
A = width of ring, +0.008”, -0 (+0.20 mm, -0 mm) variation in width throughout

the entire circumference of any ring shall not exceed 0.004” (0.10 mm) within these tolerances.
C = width of flat, +0.006”, -0 (+0.15 mm, -0 mm)
D = height of outside bevel, +0, -0.03” (+0 mm, -0.76 mm)
H = height of ring, +0.008”, -0 (+0.20 mm, -0 mm) variation in height througout

the entire circumference of any ring shall not exceed 0.004” (0.10 mm) within these tolerances.
R1 = radius of ring, ±0.02” (±0.5 mm)
E = hole size, ±0.02” (±0.5 mm) 23 deg = angle, ±1/2 deg (±0 deg 30 min)


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