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Ring Joint Gasket BX - Style No:TRTB

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 BX
BX XeʪQQIe ʜ`ʠeϡʲ 㸪QʬHQ 㸠e 㸜`I㸒HIeʲ ` 㸒Ne㸜` bH API 6A

and 㸠e designed Ne IQ N` XeʪQQIeϡʲ QQHʛQ IX HN 20,000 PSI. on both the inner

and outer diameters. All BX gaskets incorporate a pressure 㸚㸜` ٝN HN ʜ`QIe

equalization N XeʪQQIe H㸬H 㸴 trapped in the grooves.


1.Standard:API 6A
2.Material:CS,SS304,316,316L,Monel 400,F5,
3.Zinc plated:CS yellow or white
4.API 6A,ASMEB16.20


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

I

BX Ring Designations for API 6BX Flanges

API Ring Number

Nominal Flange Bore (Inches)

Weight

2000 psi

3000 psi

5000 psi

10000 psi

15000 psi

20000 psi

Kg

BX 150

--

--

--

1 11/16

1 11/16

0.134

BX 151

--

--

--

1 13/16

1 13/16

1 13/16

0.153

BX 152

--

--

--

2 1/16

2 1/16

2 1/16

0.193

BX 153

--

--

--

2 9/16

2 9/16

2 9/16

0.287

BX 154

--

--

--

3 1/16

3 1/16

3 1/16

0.398

BX 155

--

--

--

4 1/16

4 1/16

4 1/16

0.555

BX 156

--

--

--

7 1/16

7 1/16

7 1/16

1.882

BX 157

--

--

--

9

9

9

2.977

BX 158

--

--

--

11

11

11

4.364

BX 159

--

--

--

13 5/8

13 5/8

13 5/8

6.550

BX 160

--

--

13 5/8

--

--

--

3.068

BX 161

--

--

--

--

--

--

4.744

BX 162

--

--

16 3/4

16 3/4

--

--

1.989

BX 163

--

--

18 3/4

--

--

--

6.534

BX 164

--

--

--

18 3/4

18 3/4

--

9.545

BX 165

--

--

21 1/4

--

--

--

8.352

BX 166

--

--

--

21 1/4

--

--

12.500

BX 167

26 3/4

--

--

--

--

--

8.182

BX 168

--

26 3/4

--

--

--

--

11.136

BX 169

--

--

--

5 1/8

5 1/8

--

--

BX 170

6 5/8

6 5/8

BX 171

8 9/16

8 9/16

BX 172

11 5/32

11 5/32

BX 303

30

30

--

--

--

--

--



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 throughout 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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