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API 6A Type 6B 2000 psi(13.8 MPa) RTJ Blind Flange Dimensions and Drawing
API 6A Type 6B 2000 psi(13.8 MPa) RTJ Blind Flange Dimensions and Drawing
Size
Inside
Diameter
Outside
Diameter
Maximum
Chamfer
RTJ Face
Diameter
Pitch
Diameter
Depth
Flange
Thickness
Bolt Circle
Diameter
Number
of Holes
Diameter
of Holes
Ring
Number
NPS
B
OD
C
K
P
E
T
BC
N
H
R / RX
2-1/16"
53.2
165
3
108
82.55
7.9
33.4
127.0
8
20.0
23
2-9/16"
65.9
190
3
127
101.60
7.9
36.6
149.2
8
23.0
26
3-1/8"
81.8
210
3
146
123.83
7.9
39.7
168.3
8
23.0
31
4-1/16"
108.7
275
3
175
149.23
7.9
46.1
215.9
8
26.0
37
5-1/8"
131.0
330
3
210
180.98
7.9
52.4
266.7
8
29.0
41
7-1/16"
181.8
355
6
241
211.15
7.9
55.6
292.1
12
29.0
45
9"
229.4
420
6
302
269.88
7.9
63.5
349.3
12
32.0
49
11"
280.2
510
6
356
323.85
7.9
71.5
431.8
16
35.0
53
13-5/8"
346.9
560
6
413
381.00
7.9
74.7
489.0
20
35.0
57
16-3/4"
426.2
685
6
508
469.90
7.9
84.2
603.2
20
42.0
65
21-1/4"
540.5
815
6
635
584.20
9.7
98.5
723.9
24
45.0
73
Notes: 1) All dimensions are in mm unless otherwise specified.
2) Tolerances and ring gaskets are according to API 6A.
|
Size
|
Inside
Diameter |
Outside
Diameter |
Maximum
Chamfer |
RTJ Face
Diameter |
Pitch
Diameter |
Depth
|
Flange
Thickness |
Bolt Circle
Diameter |
Number
of Holes |
Diameter
of Holes |
Ring
Number |
|
NPS
|
B
|
OD
|
C
|
K
|
P
|
E
|
T
|
BC
|
N
|
H
|
R / RX
|
|
2-1/16"
|
53.2
|
165
|
3
|
108
|
82.55
|
7.9
|
33.4
|
127.0
|
8
|
20.0
|
23
|
|
2-9/16"
|
65.9
|
190
|
3
|
127
|
101.60
|
7.9
|
36.6
|
149.2
|
8
|
23.0
|
26
|
|
3-1/8"
|
81.8
|
210
|
3
|
146
|
123.83
|
7.9
|
39.7
|
168.3
|
8
|
23.0
|
31
|
|
4-1/16"
|
108.7
|
275
|
3
|
175
|
149.23
|
7.9
|
46.1
|
215.9
|
8
|
26.0
|
37
|
|
5-1/8"
|
131.0
|
330
|
3
|
210
|
180.98
|
7.9
|
52.4
|
266.7
|
8
|
29.0
|
41
|
|
7-1/16"
|
181.8
|
355
|
6
|
241
|
211.15
|
7.9
|
55.6
|
292.1
|
12
|
29.0
|
45
|
|
9"
|
229.4
|
420
|
6
|
302
|
269.88
|
7.9
|
63.5
|
349.3
|
12
|
32.0
|
49
|
|
11"
|
280.2
|
510
|
6
|
356
|
323.85
|
7.9
|
71.5
|
431.8
|
16
|
35.0
|
53
|
|
13-5/8"
|
346.9
|
560
|
6
|
413
|
381.00
|
7.9
|
74.7
|
489.0
|
20
|
35.0
|
57
|
|
16-3/4"
|
426.2
|
685
|
6
|
508
|
469.90
|
7.9
|
84.2
|
603.2
|
20
|
42.0
|
65
|
|
21-1/4"
|
540.5
|
815
|
6
|
635
|
584.20
|
9.7
|
98.5
|
723.9
|
24
|
45.0
|
73
|
Materials for API 6A Type 6B 2000 psi(13.8 MPa) RTJ Blind Flange
1) Alloy Steel: ASTM A182 Grade F1 / F5 / F9 / F11 / F22 / F91
2) Carbon Steel: ASTM A105 / A105N, ASTM A694 Grade F42 / F46 / F52 / F56 / F60 / F65 / F70
ASTM A350 Grade. LF2
3) Stainless Steel: ASTM A182 Grade F304 / F304L, F316/ F316L, F310, F309, F317L, F321, F904L, F347
4) Duplex Stainless Steel: ASTM A182 Grade F44 / F45 / F51 / F53 / F55 / F61 / F60
5) Nickel Alloys: ASTM B472, ASTM B564, ASTM B160
Monel 400, Nickel 200, Inconel 825, Inconel 601, Hastelloy C276, Alloy 31,
Alloy 20, Inconel 625, Inconel 600
6)Copper Alloys: ASTM B61 / B152 / B151 / B62
Views: 11411 Author：METALS INDUSTRIAL Date:2015/02/12