API Flanges

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API Flanges Manufacturers
India, Oman, Saudi Arabia, United States

API 6A Socket Weld Flanges, API 6BX Threaded Flanges, API weld neck Flange, API Plate Flange, API slip on Flanges Supplier, API Spectacle blind Flanges Manufacturer in India.

API flanges refer to flanges that meet the standards set by the American Petroleum Institute (API). These flanges are typically used in applications related to the oil and gas industry, including pipelines, refineries, and petrochemical plants.

API flanges come in various sizes and pressure ratings, and are available in different materials such as carbon steel, stainless steel, and alloy steel. The most commonly used API flanges are the API 6A and API 16A flanges.

API 6A flanges are used for wellhead and Christmas tree equipment, while API 16A flanges are used for blowout preventers (BOPs) and their associated equipment. These flanges are designed to withstand high pressure and temperature conditions, and are subject to rigorous testing and certification procedures to ensure their safety and reliability.

API flanges are typically connected using bolts and nuts, and the sealing surfaces are usually machined to ensure a tight and leak-free connection. Proper installation and maintenance of API flanges are crucial to ensure their performance and safety in high-pressure applications.

API Flanges Supplier

SpecificationsDimensionsTolerancesThicknessMechanical PropertiesEquivalentPressure RatingsWeight ChartApplications

Ready Stock of API 6B Socket Weld Flange, Check Sizes And Dimensions Of API Forged Flanges, Suppliers of API Welding Neck Flange, API Ring Type Joint Orifice Flange, API 6A Blind Flanges.

API Flange Specifications

Size Range

1/2" (15 NB) to 48" (1200NB) DN10~DN5000

Class / Pressure Rating

150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.

Standards / Dimensions

ANSI/ASME B16.5, B16.36, B16.48, BS4504, BS 10, EN-1092, DIN, BS, GOST, MSS SP-44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605

Connection Type

Ring Joint Flange (RTJ), Flat Face Flange (FF), Raised Face Flange (RF), Male and Female Flange (M & F), Lap Joint Flange, Large and Small Tongue-and-Groove Flange (T & G)

API Flanges Dimensions

API 6A Type 6BX 15000PSI Blind / API 6A Welding Neck Flange Dimensions API 6A Type 6B 2000PSI Welding Neck Flange Dimensions API 6A Type 6BX 2000PSI Blind Flange Dimensions
API 6A Type 6B 3000PSI Blind / Welding Neck Flange Dimensions API 6A 3000 Flange Dimensions API 6A Type 6B 5000PSI Blind / Welding Neck Flange Dimensions
API 5000 Flange Dimensions API 6A Type 6BX 10000PSI Blind / Welding Neck Flange Dimensions MSS SP-44 API 6A Weld Neck / Blind / RTJ Flange Dimensions
DIMENSION OF 15000PSI(103.5MPA) TYPE 6BX BLIND AND API 6A WELDING NECK FLANGE
6BX BLIND AND API 6A WELDING NECK FLANGE
Size
B
OD
C
E1
Q
G
K
T
J1
J2
J3
J4
R
BC
N
H
Ring Number
1 13/16"
46.8
210
3
–
5.56
77.77
106
45.3
97.6
71.4
47.6
–
10
160.3
8
26
151
2 1/16"
53.2
220
3
–
5.95
86.23
114
50.8
111.1
82.5
54
–
10
174.6
8
26
152
2 9/16"
65.9
255
3
–
6.75
102.77
133
57.2
128.6
100
57.1
–
10
200
8
29
153
3 1/16"
78.6
290
3
–
7.54
119
154
64.3
154
122.2
63.5
–
10
230.2
8
32
154
4 1/16"
104
360
3
–
8.33
150.62
194
78.6
195.3
158.7
73
–
10
290.5
8
39
155
5 1/8"
131
420
3
9.5
9.53
176.66
225
98.5
244.5
200
81.8
6.4
16
342.9
12
42
169
7 1/16"
180.2
505
6
11.1
11.11
241.83
305
119.1
325.4
276.2
92.1
7.9
16
428.6
16
42
156
9 "
229.4
650
6
12.7
12.7
299.06
381
146.1
431.8
349.2
123.8
14.2
16
552.4
16
51
157
11"
280.2
815
6
14.3
14.29
357.23
454
187.4
584.2
427
235.7
12.7
16
711.2
20
54
158
13 5/8"
346.9
885
6
15.9
15.88
432.64
541
204.8
595.3
528.6
114.3
17.5
25
771.5
20
61
159
18 3/4"
477
1160
6
18.3
18.26
577.9
722
255.6
812.8
730.2
155.6
35.1
25
1016
20
80
164

1. RING NUMBER BX, 2. C should be the max value 3. Tolerance and Ring Gasket according to API 6A-20TH

DIMENSION OF 2000PSI (13.8MPA) TYPE 6B BLIND AND WELDING NECK API 6A FLANGE
Size
B
OD
C
K
P
E
T
Q
X
BC
N
H
LN
HL
JL
R/RX
2 1/16"
53.2
165
3
108
82.55
7.9
33.4
25.4
84
127
8
20
81
60.3
53.3
23
2 9/16"
65.9
190
3
127
101.6
7.9
36.6
28.6
100
149.2
8
23
88
73
63.5
26
3 1/8"
81.8
210
3
146
123.83
7.9
39.7
31.8
117
168.3
8
23
91
88.9
78.7
31
4 1/16"
108.7
275
3
175
149.23
7.9
46.1
38.1
152
215.9
8
26
110
114.3
103.1
37
5 1/8"
131
330
3
210
180.98
7.9
52.4
44.5
189
266.7
8
29
122
141.3
122.9
41
7 1/16"
181.8
355
6
241
211.15
7.9
55.6
47.6
222
292.1
12
29
126
168.3
147.1
45
9"
229.4
420
6
302
269.88
7.9
63.5
55.6
273
349.3
12
32
141
219.1
199.1
49
11"
280.2
510
6
356
323.85
7.9
71.5
63.5
343
431.8
16
35
160
273
248.4
53
13 5/8"
346.9
560
6
413
381
7.9
74.7
66.7
400
489
20
35
–
–
–
57
16 3/4"
426.2
685
6
508
469.9
7.9
84.2
76.2
495
603.2
20
42
–
–
–
65
21 1/4"
540.5
815
6
635
584.2
9.7
98.5
88.9
610
723.9
24
45
–
–
–
73
DIMENSION OF 2000PSI (13.8MPA) TYPE 6BX BLIND API 6A FLANGE
6BX BLIND API 6A FLANGE
Size
OD
C
E1
G
K
T
J1
J4
R
BC
N
H
BX
26 3/4"
1040
6
21.4
768.33
805
126.3
835.8
9.7
16
952.5
20
48
167
30"
1120
6
23
862.3
908
134.2
931.9
17.5
16
1039.8
32
45
303
DIMENSION OF 3000PSI (20.7MPA) TYPE 6B BLIND AND API 6A WELDING NECK FLANGE
Size
B
OD
C
K
P
E
T
Q
X
BC
N
H
LN
HL
JL
R/RX
2 1/16"
53.2
215
3
124
95.25
7.9
46.1
38.1
104.8
165.1
8
26
109.6
60.3
50
24
2 9/16"
65.9
245
3
137
107.95
7.9
49.3
41.3
123.8
190.5
8
29
112.7
73
59.7
27
3 1/8"
81.8
240
3
156
123.83
7.9
46.1
38.1
127
190.5
8
26
109.5
88.9
74.4
31
4 1/16"
108.7
290
3
181
149.23
7.9
52.4
44.4
158.8
235
8
32
122.2
114.3
98
37
5 1/8"
131
350
3
216
180.98
7.9
58.8
50.8
190.5
279.4
8
35
134.9
141.3
122.9
41
7 1/16"
181.8
380
6
241
211.15
7.9
63.5
55.6
235
317.5
12
32
147.6
168.3
147.1
45
9"
229.4
470
6
308
269.88
7.9
71.5
63.5
298.5
393.7
12
39
169.9
219.1
189.7
49
11"
280.2
545
6
362
323.85
7.9
77.8
69.9
368.3
469.9
16
39
192.1
273
237.2
53
13 5/8"
346.9
610
6
419
381
7.9
87.4
79.4
419.1
533.4
20
39
–
–
–
57
16 3/4"
426.2
705
6
524
469.9
11.2
100.1
88.9
508
616
20
45
–
–
–
66
20 3/4"
527.8
855
6
648
584.2
12.7
120.7
108
622.3
749.3
20
54
–
–
–
74

Find the largest ready stock of API 6A Flanges, API Flange Price List, API Slip On Flanges Dealer, API 6BX Reducing Flanges Stockist, Check Availability of API Threaded Flanges, API 6B RF Flanges Supplier, API Forged Flanges in Mumbai, India.

API 6A 3000 PSI FLANGE DIMENSIONS
API 6A 3000 PSI FLANGE DIMENSIONS
Size B OD C K P E T Q X BC N H LN HL JL R/RX
2 1/16" 53.2 215 3 124 95.25 7.9 46.1 38.1 104.8 165.1 8 26 109.6 60.3 50 24
2 9/16" 65.9 245 3 137 107.95 7.9 49.3 41.3 123.8 190.5 8 29 112.7 73 59.7 27
3 1/8" 81.8 240 3 156 123.83 7.9 46.1 38.1 127 190.5 8 26 109.5 88.9 74.4 31
4 1/16" 108.7 290 3 181 149.23 7.9 52.4 44.4 158.8 235 8 32 122.2 114.3 98 37
5 1/8" 131 350 3 216 180.98 7.9 58.8 50.8 190.5 279.4 8 35 134.9 141.3 122.9 41
7 1/16" 181.8 380 6 241 211.15 7.9 63.5 55.6 235 317.5 12 32 147.6 168.3 147.1 45
9" 229.4 470 6 308 269.88 7.9 71.5 63.5 298.5 393.7 12 39 169.9 219.1 189.7 49
11" 280.2 545 6 362 323.85 7.9 77.8 69.9 368.3 469.9 16 39 192.1 273 237.2 53
13 5/8" 346.9 610 6 419 381 7.9 87.4 79.4 419.1 533.4 20 39 – – – 57
16 3/4" 426.2 705 6 524 469.9 11.2 100.1 88.9 508 616 20 45 – – – 66
20 3/4" 527.8 855 6 648 584.2 12.7 120.7 108 622.3 749.3 20 54 – – – 74
DIMENSION OF 5000PSI (34.5MPA) TYPE 6B BLIND AND API 6A WELDING NECK FLANGE
Size
B
OD
C
K
P
E
T
Q
X
BC
N
H
LN
HL
JL
R/RX
2 1/16"
53.2
215
3
124
95.25
7.9
46.1
38.1
104.8
165.1
8
26
109.5
60.3
43.7
24
2 9/16"
65.9
245
3
137
107.95
7.9
49.3
41.3
123.8
190.5
8
29
112.7
73
54.9
27
3 1/8"
81.8
265
3
168
136.53
7.9
55.6
47.7
133.3
203.2
8
32
125.4
88.9
67.5
35
4 1/16"
108.7
310
3
194
161.93
7.9
62
54
161.9
241.3
8
35
131.8
114.3
88.1
39
5 1/8"
131
375
3
229
193.68
7.9
81
73.1
196.8
292.1
8
42
163.5
141.3
110.3
44
7 1/16"
181.8
395
6
248
211.15
9.7
92.1
82.6
228.6
317.5
12
39
181
168.3
132.6
46
9"
229.4
485
6
318
269.88
11.2
103.2
92.1
292.1
393.7
12
45
223.8
219.1
173.8
50
11"
280.2
585
6
371
323.85
11.2
119.1
108
368.3
482.6
12
51
265.1
273.1
216.7
54
API 6A 5000 PSI DIMENSIONS
API 6A 5000 PSI DIMENSIONS
Size B OD C K P E T Q X BC N H LN HL JL R/RX
2 1/16" 53.2 215 3 124 95.25 7.9 46.1 38.1 104.8 165.1 8 26 109.5 60.3 43.7 24
2 9/16" 65.9 245 3 137 107.95 7.9 49.3 41.3 123.8 190.5 8 29 112.7 73 54.9 27
3 1/8" 81.8 265 3 168 136.53 7.9 55.6 47.7 133.3 203.2 8 32 125.4 88.9 67.5 35
4 1/16" 108.7 310 3 194 161.93 7.9 62 54 161.9 241.3 8 35 131.8 114.3 88.1 39
5 1/8" 131 375 3 229 193.68 7.9 81 73.1 196.8 292.1 8 42 163.5 141.3 110.3 44
7 1/16" 181.8 395 6 248 211.15 9.7 92.1 82.6 228.6 317.5 12 39 181 168.3 132.6 46
9" 229.4 485 6 318 269.88 11.2 103.2 92.1 292.1 393.7 12 45 223.8 219.1 173.8 50
11" 280.2 585 6 371 323.85 11.2 119.1 108 368.3 482.6 12 51 265.1 273.1 216.7 54
DIMENSION OF 10000PSI(69.0MPA) TYPE 6BX BLIND AND API 6A WELDING NECK FLANGE
Size B OD C E1 Q G K T J1 J2 J3 J4 R BC N H BX
1 13/16" 46.8 185 3 – 5.56 77.77 105 42.1 88.9 65.1 48.5 – 10 146.1 8 23 151
2 1/16" 53.2 200 3 – 5.95 86.23 111 44.1 100 74.7 51.6 – 10 158.8 8 23 152
2 9/16" 65.9 230 3 – 6.75 102.77 132 51.2 120.7 92.1 57.2 – 10 184.2 8 26 153
3 1/16" 78.6 270 3 – 7.54 119 152 58.4 142.1 110.2 63.5 – 10 215.9 8 29 154
4 1/16" 104 315 3 – 8.33 150.62 185 70.3 182.6 146.1 73.1 – 10 258.8 8 32 155
5 1/8" 131 360 3 9.5 9.53 176.66 221 79.4 223.8 182.6 81 6.4 10 300 12 32 169
7 1/16" 180.2 480 6 11.1 11.11 241.83 302 103.2 301.6 254 95.3 9.7 16 403.2 12 42 156
9 " 229.4 550 6 12.7 12.7 299.06 359 123.9 374.7 327.1 93.7 9.7 16 476.3 16 42 157
11" 280.2 655 6 14.3 14.29 357.23 429 141.3 450.9 400.1 103.2 14.2 16 565.2 16 48 158
13 5/8" 346.9 770 6 15.9 15.88 432.64 518 168.3 552.5 495.3 114.3 17.5 16 673.1 20 51 159
16 3/4" 426.2 870 6 8.3 8.33 478.33 576 168.3 655.6 601.7 76.2 30.2 19 776.3 24 51 162
18 3/4" 477 1040 6 18.3 18.26 577.9 697 223.1 752.5 674.7 155.6 25.4 16 925.5 24 61 164
21 1/4" 540.5 1145 6 19.1 19.05 647.88 781 241.3 847.7 762 165.1 31.8 21 1022.4 24 67 166
MSS SP-44 API 6A WELD NECK / BLIND / RTJ FLANGE DIMENSIONS
MSS SP-44 API 6A WELD NECK / BLIND / RTJ FLANGE DIMENSIONS

Size

B

OD

C

E1

Q

G

K

T

J1

J2

J3

J4

R

BC

N

H

BX

1 13/16″

46.8

185

3

–

5.56

77.77

105

42.1

88.9

65.1

48.5

–

10

146.1

8

23

151

2 1/16″

53.2

200

3

–

5.95

86.23

111

44.1

100

74.7

51.6

–

10

158.8

8

23

152

2 9/16″

65.9

230

3

–

6.75

102.77

132

51.2

120.7

92.1

57.2

–

10

184.2

8

26

153

3 1/16″

78.6

270

3

–

7.54

119

152

58.4

142.1

110.2

63.5

–

10

215.9

8

29

154

4 1/16″

104

315

3

–

8.33

150.62

185

70.3

182.6

146.1

73.1

–

10

258.8

8

32

155

5 1/8″

131

360

3

9.5

9.53

176.66

221

79.4

223.8

182.6

81

6.4

10

300

12

32

169

7 1/16″

180.2

480

6

11.1

11.11

241.83

302

103.2

301.6

254

95.3

9.7

16

403.2

12

42

156

9 “

229.4

550

6

12.7

12.7

299.06

359

123.9

374.7

327.1

93.7

9.7

16

476.3

16

42

157

11″

280.2

655

6

14.3

14.29

357.23

429

141.3

450.9

400.1

103.2

14.2

16

565.2

16

48

158

13 5/8″

346.9

770

6

15.9

15.88

432.64

518

168.3

552.5

495.3

114.3

17.5

16

673.1

20

51

159

16 3/4″

426.2

870

6

8.3

8.33

478.33

576

168.3

655.6

601.7

76.2

30.2

19

776.3

24

51

162

18 3/4″

477

1040

6

18.3

18.26

577.9

697

223.1

752.5

674.7

155.6

25.4

16

925.5

24

61

164

21 1/4″

540.5

1145

6

19.1

19.05

647.88

781

241.3

847.7

762

165.1

31.8

21

1022.4

24

67

166

API 6A Flanges Tolerance

Nominal Size Of Bore Bore (Maximam) Outside Diameter (O.D.) Dimensional Tolerance Maximam Chamfer
B D D C
2000 PSI
26¾ 26.78 41 ± 0.12 0.25
30 30.03 44.19 ± 0.12 0.25
3000 PSI
26¾ 26.78 43.38 ± 0.12 0.25
30 30.03 46.68 ± 0.12 0.25
5000 PSI
13.3/8 13.66 26.5 ± 0.12 0.25
16¾ 16.78 30.38 ± 0.12 0.25
18¾ 18.78 35.62 ± 0.12 0.25
21¾ 21.28 39 ± 0.12 0.25
10000 PSI
1.13/16 1.84 7.38 ± 0.06 0.12
2.1/16 2.09 7.88 ± 0.06 0.12
2.9/16 2.59 9.12 ± 0.06 0.12
3.1/16 3.09 10.62 ± 0.06 0.12
4.1/16 4.09 12.44 ± 0.06 0.12
5.1/8 5.16 14.06 ± 0.06 0.12
7.1/16 7.09 18.88 ± 0.12 0.25
9 9.03 21.75 ± 0.12 0.25
11 11.03 25.75 ± 0.12 0.25
13.5/8 13.66 30.25 ± 0.12 0.25
16¾ 16.78 34.31 ± 0.12 0.25
18¾ 18.78 40.94 ± 0.12 0.25
21¼ 21.28 45 ± 0.12 0.25
15000 PSI
1.13/16 1.84 8.19 ± 0.06 0.12
2.1/16 2.09 8.75 ± 0.06 0.12
2.9/16 2.59 10 ± 0.06 0.12
3.1/16 3.09 11.31 ± 0.06 0.12
4.1/16 4.09 14.19 ± 0.06 0.12
5.1/8 5.16 16.5 ± 0.06 0.12
7.1/16 7.09 19.88 ± 0.12 0.25
9 9.03 25.5 ± 0.12 0.25
11 11.03 32 ± 0.12 0.25
13.5/8 13.66 34.88 ± 0.12 0.25
18¾ 18.78 45.75 ± 0.12 0.25
20000 PSI
1.13/16 1.84 10.12 ± 0.06 0.12
2.1/16 2.09 11.31 ± 0.06 0.12
2.9/16 2.59 12.81 ± 0.06 0.12
3.1/16 3.09 14.06 ± 0.06 0.12
4.1/16 4.09 17.56 ± 0.06 0.12
7.1/16 7.09 25.81 ± 0.12 0.25
9 9.03 31.69 ± 0.12 0.25
11 11.03 34.75 ± 0.12 0.25
13.5/8 13.66 45.75 ± 0.12 0.25
Nominal
Size
and
Bore		 Dia
Raised
Face		 Total
THK		 Large
Dia
Hub		 Small
Dia
Hub
F T A E
2000 PSI
26¾ 31.69 4.97 32.91 29.25
30 35.75 5.28 36.69 32.8
3000 PSI
26¾ 32.75 6.34 34.25 30.56
30 36.31 6.58 38.19 34.3
5000 PSI
13.3/8 18 4.44 18.94 16.69
16¾ 21.06 5.13 21.88 20.75
18¾ 24.69 6.53 26.56 23.56
21¾ 27.62 7.12 29.88 26.75
10000 PSI
1.13/16 4.12 1.66 3.5 2.56
2.1/16 4.38 1.73 3.94 2.94
2.9/16 5.19 2.02 4.75 3.62
3.1/16 6 2.3 5.59 4.34
4.1/16 7.28 2.77 7.19 5.75
5.1/8 8.69 3.12 8.81 7.19
7.1/16 11.88 4.06 11.88 10
9 14.12 4.88 14.75 12.88
11 16.88 5.56 17.75 15.75
13.5/8 20.38 6.62 21.75 19.5
16¾ 22.69 6.62 25.81 23.69
18¾ 27.44 8.78 29.62 26.56
21¼ 30.75 9.5 33.38 30
15000 PSI
1.13/16 4.19 1.78 3.84 2.81
2.1/16 4.5 2 4.38 3.25
2.9/16 5.25 2.25 5.06 3.94
3.1/16 6.06 2.53 6.06 4.81
4.1/16 7.62 3.09 7.69 6.25
5.1/8 8.88 3.88 9.62 7.88
7.1/16 12 4.6 12.81 10.88
9 15 5.75 17 13.75
11 17.88 7.38 23 16.81
13.5/8 21.31 8.06 23.44 20.81
18¾ 28.44 10.06 32 28.75
20000 PSI
1.13/16 4.62 2.5 5.25 4.31
2.1/16 5.19 2.81 6.06 5
2.9/16 5.94 3.12 6.81 5.69
3.1/16 6.75 3.38 7.56 6.31
4.1/16 8.62 4.19 9.56 8.12
7.1/16 13.88 6.5 15.19 13.31
9 17.38 8.06 18.94 16.88
11 19.88 8.81 22.31 20
13.5/8 24.19 11.5 27.31 24.75

API 6A Flanges Thickness

NPS (Normal Pipe Size) "A"
(O.D.) Outside Daimeter		 "B"
(Thick.)		 "C"
(RF Daimeter)		 "D"
(B.C.D.)		 # Bolt
Holes		 Diameter of
Bolt Holes		 Apprx.
Weight In KG
1/2" 3-1/2 7/16 1-3/8 2-3/8 4 5/8 2
3/4" 3-7/8 1/2 1-11/16 2-3/4 4 5/8 2
1" 4-1/4 9/16 2 3-1/8 4 5/8 2
1-1/4" 4-5/8 5/8 2-1/2 3-1/2 4 5/8 3
1-1/2" 5 11/16 2-7/8 3-7/8 4 5/8 3
2" 6 3/4 3-5/8 4-3/4 4 3/4 4
2-1/2" 7 7/8 4-1/8 5-1/2 4 3/4 7
3" 7-1/2 15/16 5 6 4 3/4 9
3-1/2" 8-1/2 15/16 5-1/2 7 8 3/4 13
4" 9 15/16 6-3/16 7-1/2 8 3/4 17
5" 10 15/16 7-5/16 8-1/2 8 7/8 20
6" 11 1 8-1/2 9-1/2 8 7/8 27
8" 13-1/2 1-1/8 10-5/8 11-3/4 8 7/8 47
10" 16 1-3/16 12-3/4 14-1/4 12 1 67
12" 19 1-1/4 15 17 12 1 123
14" 21 1-3/8 16-1/4 18-3/4 12 1-1/8 139
16" 23-1/2 1-7/16 18-1/2 21-1/4 16 1-1/8 187
18" 25 1-9/16 21 22-3/4 16 1-1/4 217
20" 27-1/2 1-11/16 23 25 20 1-1/4 283
24" 32 1-7/8 27-1/4 29-1/2 20 1-3/8 415

API Flanges Mechanical Properties

Test Pressure 3,000 PSI 4,500 PSI 7,500 PSI 15,000 PSI 22,500 PSI 30,000 PSI
Maxi. Working Pressure 2,000 PSI 3,000 PSI 5,000 PSI 10,000 PSI 15,000 PSI 20,000 PSI
Temperature Rating K (-60 Deg C) TO Y (+345 Deg C) K (-60 Deg C) To Y (+345 Deg C) K (-60 Deg C) To Y (+345 Deg C) K (-60 Deg C) To Y (+345 Deg C) K (-60 Deg C) To Y (+345 Deg C) K (-60 Deg C) To Y (+345 Deg C)
Product Specification Levels 1, 2, 3 & 4 1, 2, 3 & 4 1, 2, 3 & 4 1, 2, 3 & 4 1, 2, 3 & 4 1, 2, 3 & 4

API 6A Flanges Equivalent

Weld Neck, Integral, Blinds, Equivalent
Maximam
Working
Pressure		 2000
PSI		 3000
PSI		 5000
PSI
Test Pressure 3000 PSI 4500 PSI 7500 PSI
Product
Spec
Levels		 1, 2, 3 and 4 1, 2, 3 and 4 1, 2, 3 and 4
API
Temperature
Rating		 K (-60 ° C)
to
Y (+345 ° C)		 K (-60 ° C)
to
Y (+345 ° C)		 K (-60 ° C)
to
Y (+345 ° C)
Integral, Blind, Target Blind and Test Flanges
Minimam Yield 60 000 PSI 60 000 PSI 60 000 PSI
Minimam Tensile 85 000 PSI 85 000 PSI 85 000 PSI
Material API 60K API 60K API 60K

API Flanges Pressure Ratings

Flange Size
Working Pressure (PSI)
Outside Diameter
Number of Bolt Holes
Diameter of Bolt Holes
Length of Bolts
API Ring Gasket
1-13/16"
10,000
7-3/8"
8
3/4"
5-1/4"
BX-151
1-13/16"
15,000
8-3/16"
8
7/8"
6"
BX-151
1-13/16"
20,000
10-1/8"
8
1"
7-3/4"
BX-151
2-1/16"
2,000
6-1/2"
8
5/8"
5/8"
R-23
2-1/16"
3,000/5,000
8-1/2"
8
7/8"
7/8"
R-24
2-1/16"
10,000
7-7/8"
8
3/4"
3/4"
BX-152
2-1/16"
15,000
8-3/4"
8
7/8"
7/8"
BX-152
2-1/16"
20,000
11-5/16"
8
1-1/8"
1-1/8"
BX-152
2-9/16"
2,000
7-1/2"
8
3/4"
5-1/4"
R-26
2-9/16"
3,000/5,000
9-5/8"
8
1"
7"
R-27
2-9/16"
10,000
9-1/8"
8
7/8"
6-1/4"
BX-153
2-9/16"
15,000
10"
8
1"
7"
BX-153
2-9/16"
20,000
12-13/16"
8
1-1/4"
9-1/2"
BX-153
3-1/8"
2,000
8-1/4"
8
3/4"
5-1/2"
R-31
3-1/8"
3,000
9-1/2"
8
7/8"
6-1/4"
R-31
3-1/8"
5,000
10-1/2"
8
1-1/8"
7-3/4"
R-35
3-1/16"
10,000
10-5/8"
8
1"
7-1/4"
BX-154
3-1/16"
15,000
11-5/16"
8
1-1/8"
8"
BX-154
3-1/16"
20,000
14-1/16"
8
1-3/8"
10-3/4"
BX-154
4-1/16"
2,000
10-3/4"
8
7/8"
6-1/4"
R-37
4-1/16"
3,000
11-1/2"
8
1-1/8"
7-1/2"
R-37
4-1/16"
5,000
12-1/4"
8
1-1/8"
8-3/8"
BX-155
4-1/16"
20,000
17-9/16"
8
1-3/4"
12-3/4"
BX-155
5-1/8"
5,000
14-3/4"
8
1-1/2"
10-3/4"
R-44
7-1/16"
2,000
14"
12
1"
7-1/2"
R-45
7-1/16"
3,000
15"
12
1-1/8"
8-1/2"
R-45
7-1/16"
5,000
15-1/2"
12
1-3/8"
11-1/4"
R-46
7-1/16"
10,000
18-7/8"
12
1-1/2"
11-3/4"
BX-156
7-1/16"
15,000
19-7/8"
16
1-1/2"
13"
BX-156
7-1/16"
20,000
24-13/16"
16
2"
17-3/4"
BX-156
9"
2,000
16-1/2"
12
1-1/8"
8-1/2"
R-49
9"
3,000
18-1/2"
12
1-3/8"
9-1/2"
R-49
9"
5,000"
19"
12
1-5/8"
12-1/2"
R-50
9"
10,000
21-3/4"
16
1-1/2"
13-1/4"
BX-157
9"
15,000
25-1/2"
16
1-7/8"
16"
BX-157
11"
2,000
20"
16
1-1/4"
9-1/4"
R-53
11"
3,000
21-1/2"
16
1-3/8"
10"
R-53
11"
5,000
23"
12
1-7/8"
14-1/4"
R-54
11"
10,000
25-3/4"
16
1-3/4"
15-3/8"
BX-158
11"
15,000
32"
20
2"
19-1/2"
BX-158
13-5/8"
2,000
22"
20
1-1/4"
9-1/2"
R-57
13-5/8"
3,000
24"
20
1-3/8"
10-3/4"
R-57
13-5/8"
5,000
26-1/2"
16
1-5/8"
12-3/4"
BX-160
13-5/8"
10,000
30-1/4"
20
1-7/8"
17-3/4"
BX-159
13-5/8"
15,000
34-7/8"
20
2-1/4"
21"
BX-159
16-3/4"
2,000
27"
20
1-1/2"
10-3/4"
R-65
16-3/4"
3,000
27-3/4"
20
1-5/8"
12-1/4"
R-66
16-3/4"
5,000
30-3/8"
16
1-78"
14-3/4"
BX-162
16-3/4"
10,000
34-5/16"
24
1-7/8"
17-3/4"
BX-162
18-3/4"
5,000
35-5/8"
20
2"
18"
BX-163
16-3/4"
10,000
40-15/16"
24
2-1/4"
23"
BX-164
20-3/4"
3,000
33-3/4"
20
2"
15-1/4"
R-74
21-1/4"
2,000
32"
24
1-5/8"
12-1/2"
R-73
21-1/4"
5,000
39"
24
2"
19"
BX-165
21-1/4"
10,000
45"
24
2-1/2"
24-3/4"
BX-166
26-3/4"
2,000
41"
20
1-3/4"
14-1/4"
BX-167
21-1/4"
3,000
43-3/8"
24
2"
17-1/2"
BX-168

API 6A Flanges Bolt And Ring Chart

API 6A Flanges Bolt And Ring Chart

API 6A Adapter Flanges Torque Values

API 6A Flanges Torque Values

API 6B Flanges Weight Chart

NPS In Inch. DN In MM Flange Outside Daimeter A In MM Flange Thickness D In MM API 6a SORF Flange Weight In KG API 6a WN Flange Weight In KG API 6a BLRF Flange Weight In KG
1/ 2 15 88.9 11.2 0.4 0.5 0.4
3/ 4 20 98.6 12.7 0.6 0.7 0.6
1 25 108 14.2 0.8 1 0.9
1 1/ 4 32 117.3 15.7 1 1.3 1.2
1 1/ 2 40 127 17.5 1.3 1.7 1.5
2 50 152.4 19.1 2.1 2.6 2.4
2 1/ 2 65 177.8 22.4 3.3 4.1 3.9
3 80 190.5 23.9 3.9 4.9 4.9
3 1/ 2 90 215.9 23.9 4.8 6.1 6.2
4 100 228.6 23.9 5.3 6.8 7.0
5 125 254 23.9 6.1 8.6 8.6
6 150 279.4 25.4 7.5 10.6 11.3
8 200 342.9 28.4 12.1 17.6 19.6
10 250 406.4 30.2 16.5 24 28.6
12 300 482.6 31.8 26.2 36.5 43.2
14 350 533.4 35.1 34.6 48.4 58.1
16 400 596.9 36.6 44.8 60.6 76.1
18 450 635 39.6 48.9 68.3 93.7
20 500 698.5 42.9 61.9 84.5 122.0
24 600 812.8 47.8 86.9 115 185.0

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API Flanges Applications

Australia, Afghanistan, Algeria, Angola, Argentina, Armenia, Azerbaijan, Bahrain, Bangladesh, Benin,
Bhutan, Botswana, Brazil, Brunei, Burkina Faso, Cambodia, Cameroon, Canada, Central Africa Republic,
Chad, Chile, Colombia, Cuba, Cyprus, DRC, Djibouti, Egypt, Equatorial Guinea, Eritrea, Eswatini,
Ethiopia, Fiji, Finland, France, Georgia, Germany, Ghana, Greece, Hungary, Iceland, Indonesia, Iran,
Iraq, Ireland, Israel, Italy, Japan, Jordan, Kazakhstan, Kenya, Kuwait, Kyrgyzstan, Laos, Lebanon,
Lesotho, Liberia, Libya, Lithuania, Madagascar, Malawi, Malaysia, Maldives, Mali, Mexico, Morocco,
Mozambique, Mauritania, Myanmar, Namibia, Nepal, Netherlands, New Zealand, Nigeria, Norway, Oman,
Panama, Peru, Philippines, Poland, Portugal, Palestine, Qatar, Russia, Rwanda, Romania, Saudi Arabia,
Senegal, Sierra Leone, Singapore, Slovakia, Somalia, South Africa, South Korea, South Sudan, Spain,
Sri Lanka, Sweden, Switzerland, Syria, Taiwan, Tajikistan, Tanzania, Tasmania, Thailand, The Gambia,
Timor-Leste, Togo, Tunisia, Turkey, Turkiye, Turkmenistan, Uganda, Uzbekistan, United Arab Emirates (UAE),
United Kingdom (UK), United States (US), Venezuela, Vietnam, Yemen, Zambia, Zimbabwe

Abu Dhabi, Amsterdam, Abuja, Accra, Addis Ababa, Ahmedabad, Algiers, Amman, Ankara, Antananarivo,
Ashgabat, Asmara, Astana, Athens, Baghdad, Baku, Bamako, Bandar Seri Begawan, Bangkok, Bangui,
Banjul, Beirut, Bengaluru, Berlin, Bishkek, Bloemfontein, Bogotá, Bern, Brasília, Bratislava,
Bucharest, Budapest, Buenos Aires, Cairo, Canberra, Cape Town, Caracas, Chennai, Coimbatore, Dakar,
Damascus, Dhaka, Dili, Djibouti city, Dodoma, Doha, Dublin, Dushanbe, Freetown, Gaborone, Ghaziabad,
Guwahati, Hanoi, Harare, Havana, Helsinki, Hobart, Hyderabad, Indore, Jaipur, Jakarta, Jerusalem,
Juba, Jurong East, Kabul, Kampala, Kanpur, Kathmandu, Kigali, Kinshasa, Kochi, Kolkata, Kuala Lumpur,
Kuwait City, Lisbon, Lilongwe, Lima, Lobamba, Lomé, London, Luanda, Lucknow, Lusaka, Malabo, Madrid,
Malé, Mexico City, Manama, Moscow, Manila, Maputo, Maseru, Mbabane, Mogadishu, Monrovia, Mumabi,
Muscat, Nagpur, Nairobi, New Delhi, Niamey, Nicosia, Noida, Nouakchott, N’Djamena, Oslo, Ottawa,
Ouagadougou, Panama City, Paris, Patna, Phnom Penh, Porto-Novo, Pretoria, Pune, Rabat, Reykjavík,
Riyadh, Rome, Sana’a, Santiago, Sri Jayawardenepura Kotte, Stockholm, Seoul, Singapore, Surat,
Suva, Taipei City, Tashkent, Tokyo, Tbilisi, Tehran, Thimphu, Tripoli, Tunis, Vientiane, Vilnius,
Visakhapatnam, Warsaw, Washington D.C., Wellington, Windhoek, Yaoundé, Yerevan, Naypyidaw

API Flanges Price

Omaa Metal Sources is API 6A langes Exporters and Suppliers in the US, UK, South Africa, Saudi Arabia, Singapore, UAE, Oman, South Korea, Turkey, Bahrain, Malaysia, Philippines, Thailand, Norway, Indonesia, Iraq, Yemen, Bangladesh, Nigeria, Egypt, Peru, Ghana, Morocco, Etc.

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