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Product Grid
Blind Flanges (BLRF)
Founded in 1991 and built over the years with air and creativity, orbit engineering co. is a powerhouse manufacturer, supplier of Blind Flanges that stand for quality and convenience. We go the extra mile to usher the best services to our customers. Our Blind Flanges are mostly used to seal the end or opening of a pipe, which is why they come without a bore. This is handy for inspection and pressure tests, as it allows quick access to the pipe.
Product Structure
Standard Specication For Blind Flanges
Dimensions : ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
Size : 1/2″ (15 NB) to 48″ (1200NB)
Class : 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.
DIN : DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629,
DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636,DIN2637, DIN2638, DIN2673
BS : BS4504 , BS4504, BS1560, BS10
Flange Face Type : Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Material & Grades of Blind Flanges (BLRF) :
Carbon Steel Blind Flanges :
ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F706
Low Temperature Carbon Steel Blind Flanges : ASTM A350, LF2, LF3
Alloy Steel Blind Flanges :
ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91
Technical Parameters
Dimensions Blind Flanges & Stud Bolts ASME B16.5
NPS 1/2
| CL | 150 | 300 | 600 | 900 | 1500 | 2500 |
| DIA D |
90 | 95 | 95 | 120 | 120 | 135 |
| B | 9.6 | 12.7 | 14.3 | 22.3 | 22.3 | 30.2 |
| 11.2 | 14.3 | 20.7 | 28.7 | 28.7 | 36.6 | |
| DIA G |
35.1 | 35.1 | 35.1 | 35.1 | 35.1 | 35.1 |
| DIA K |
60.3 | 66.7 | 66.7 | 82.6 | 82.6 | 88.9 |
| NO. L |
4 | 4 | 4 | 4 | 4 | 4 |
| DIA L |
15.9 | 15.9 | 15.9 | 22.2 | 22.2 | 22.2 |
| Stud Bolts Diameter x Length | ||||||
| DIA (in) |
1/2 | 1/2 | 1/2 | 3/4 | 3/4 | 3/4 |
| Len mm |
55 | 65 | 75 | 110 | 110 | 120 |
Notes:
- Dimensions are in millimeters unless otherwise indicated.
- The length of the Stud Bolt does not include the height of the chamfers (points).
|
ANSI/ASME/ASA B16.5 150lb/sq.in. Flange BLIND-RF
|
|||||||
|
ø
|
D
|
b
|
g
|
k
|
Holes
|
l
|
Kg.
|
|
1/2″
|
88,9
|
11,1
|
34,9
|
60,3
|
4
|
15,9
|
0,400
|
|
3/4″
|
98,4
|
12,7
|
42,9
|
69,8
|
4
|
15,9
|
0,700
|
|
1″
|
107,9
|
14,3
|
50,8
|
79,4
|
4
|
15,9
|
0,900
|
|
1 1/4″
|
117,5
|
15,9
|
63,5
|
88,9
|
4
|
15,9
|
1,300
|
|
1 1/2″
|
127,0
|
17,5
|
73,0
|
98,4
|
4
|
15,9
|
1,600
|
|
2″
|
152,4
|
19,0
|
92,1
|
120,6
|
4
|
19,0
|
2,600
|
|
2 1/2″
|
177,8
|
22,2
|
104,8
|
139,4
|
4
|
19,0
|
4,100
|
|
3″
|
190,5
|
23,8
|
127,0
|
152,4
|
4
|
19,0
|
5,000
|
|
3 1/2″
|
215,9
|
23,8
|
139,7
|
177,8
|
8
|
19,0
|
6,400
|
|
4″
|
228,6
|
23,8
|
157,2
|
190,5
|
8
|
19,0
|
7,100
|
|
5″
|
254,0
|
23,8
|
185,7
|
215,9
|
8
|
22,2
|
9,000
|
|
6″
|
279,4
|
25,4
|
215,9
|
241,3
|
8
|
22,2
|
11,800
|
|
8″
|
342,9
|
28,6
|
269,9
|
298,4
|
8
|
22,2
|
21,000
|
|
10″
|
406,4
|
30,2
|
323,4
|
361,9
|
12
|
25,4
|
30,000
|
|
12″
|
482,6
|
31,7
|
381,0
|
431,8
|
12
|
25,4
|
45,000
|
|
14″
|
533,4
|
34,9
|
412,7
|
476,2
|
12
|
28,6
|
59,000
|
|
16″
|
596,9
|
36,5
|
469,9
|
539,9
|
16
|
28,6
|
79,000
|
|
18″
|
635,0
|
39,7
|
533,4
|
577,8
|
16
|
31,7
|
97,000
|
|
20″
|
698,5
|
42,9
|
584,2
|
635,0
|
20
|
31,7
|
124,000
|
|
22″
|
749,3
|
46,0
|
641,2
|
692,1
|
20
|
34,9
|
151,000
|
|
24″
|
812,8
|
47,6
|
692,1
|
749,3
|
20
|
34,9
|
188,000
|
|
ANSI/ASME/ASA B16.5 300lb/sq.in. Flange BLIND-RF
|
|||||||
|
ø
|
D
|
b
|
g
|
k
|
Holes
|
l
|
Kg.
|
|
1/2″
|
95,2
|
14,3
|
34,9
|
66,7
|
4
|
15,9
|
0,700
|
|
3/4″
|
117,5
|
15,9
|
42,9
|
82,5
|
4
|
19,0
|
1,200
|
|
1″
|
123,8
|
17,5
|
50,8
|
88,9
|
4
|
19,0
|
1,500
|
|
1 1/4″
|
133,3
|
19,0
|
63,5
|
98,4
|
4
|
19,0
|
2,000
|
|
1 1/2″
|
155,6
|
20,6
|
73,0
|
114,3
|
4
|
22,2
|
2,900
|
|
2″
|
165,1
|
22,2
|
92,1
|
127,0
|
8
|
19,0
|
3,400
|
|
2 1/2″
|
190,5
|
25,4
|
104,8
|
149,2
|
8
|
22,2
|
5,100
|
|
3″
|
209,5
|
28,6
|
127,0
|
168,3
|
8
|
22,2
|
7,000
|
|
3 1/2″
|
228,6
|
30,2
|
139,7
|
184,1
|
8
|
22,2
|
8,900
|
|
4″
|
254,0
|
31,7
|
157,2
|
200,0
|
8
|
22,2
|
11,800
|
|
5″
|
279,4
|
34,9
|
185,7
|
234,9
|
8
|
22,2
|
15,500
|
|
6″
|
317,5
|
36,5
|
215,9
|
269,9
|
12
|
22,2
|
21,300
|
|
8″
|
381,0
|
41,3
|
269,9
|
330,2
|
12
|
25,4
|
35,200
|
|
10″
|
444,5
|
47,6
|
323,8
|
387,3
|
16
|
28,6
|
57,000
|
|
12″
|
520,7
|
50,8
|
381,0
|
450,8
|
16
|
31,7
|
82,000
|
|
14″
|
584,2
|
54,0
|
412,7
|
514,3
|
20
|
31,7
|
106,000
|
|
16″
|
647,7
|
57,1
|
469,9
|
571,5
|
20
|
34,9
|
140,000
|
|
18″
|
711,2
|
60,3
|
533,4
|
628,6
|
24
|
34,9
|
178,000
|
|
20″
|
774,7
|
63,5
|
584,2
|
685,8
|
24
|
34,9
|
223,000
|
|
22″
|
838,2
|
66,7
|
641,2
|
742,9
|
24
|
41,3
|
270,000
|
|
24″
|
914,4
|
69,8
|
692,1
|
812,8
|
24
|
41,3
|
345,000
|
|
ANSI/ASME/ASA B16.5 600lb/sq.in. Flange BLIND-RF
|
|||||||
|
ø
|
D
|
b
|
g
|
k
|
Holes
|
l
|
Kg.
|
|
1/2″
|
95,2
|
14,3
|
34,9
|
66,7
|
4
|
15,9
|
0,700
|
|
3/4″
|
117,5
|
15,9
|
42,9
|
82,5
|
4
|
19,0
|
1,200
|
|
1″
|
123,8
|
17,5
|
50,8
|
88,9
|
4
|
19,0
|
1,500
|
|
1 1/4″
|
133,3
|
20,6
|
63,5
|
98,4
|
4
|
19,0
|
2,000
|
|
1 1/2″
|
155,6
|
22,2
|
73,0
|
114,3
|
4
|
22,2
|
3,200
|
|
2″
|
165,1
|
25,4
|
92,1
|
127,0
|
8
|
19,0
|
4,300
|
|
2 1/2″
|
190,5
|
28,6
|
104,8
|
149,2
|
8
|
22,2
|
6,000
|
|
3″
|
209,5
|
31,7
|
127,0
|
168,3
|
8
|
22,2
|
8,000
|
|
3 1/2″
|
228,6
|
34,9
|
139,7
|
184,1
|
8
|
25,4
|
10,500
|
|
4″
|
273,0
|
38,1
|
157,2
|
215,9
|
8
|
25,4
|
18,000
|
|
5″
|
330,2
|
44,4
|
185,7
|
266,7
|
8
|
28,6
|
28,500
|
|
6″
|
355,6
|
47,6
|
215,9
|
292,1
|
12
|
28,6
|
35,500
|
|
8″
|
419,1
|
55,6
|
269,9
|
349,2
|
12
|
31,7
|
58,000
|
|
10″
|
508,0
|
63,5
|
323,8
|
431,8
|
16
|
34,9
|
98,000
|
|
12″
|
558,8
|
66,7
|
381,0
|
488,9
|
20
|
34,9
|
125,000
|
|
14″
|
603,2
|
69,8
|
412,7
|
527,0
|
20
|
38,1
|
151,000
|
|
16″
|
685,8
|
76,2
|
469,9
|
603,2
|
20
|
41,3
|
215,000
|
|
18″
|
742,9
|
82,5
|
533,4
|
654,0
|
20
|
44,4
|
287,000
|
|
20″
|
812,8
|
88,9
|
584,2
|
723,9
|
24
|
44,4
|
366,000
|
|
22″
|
869,9
|
95,2
|
641,2
|
777,9
|
24
|
47,6
|
437,000
|
|
24″
|
939,8
|
101,6
|
692,1
|
838,2
|
24
|
50,8
|
532,000
|
Application
ANSI B16.5 Blind Flanges Application
ASME B16.5 Blind Flanges are known to deliver exceptional performance and are generally developed for
meeting the demands. We offer a broad range of Flat Faced Blind Flanges through a network of stock keeping branches. These Blind Flange is use in various industries like :
Stainless Steel Blind Flanges uses in Oil and Gas Pipeline
Blind Raised Face Flanges uses in Chemical Industry
Alloy Steel BLRF Flanges uses in Plumbing
Flat Faced Blind Flanges uses in Heating
Blind Pipe Flanges uses in Water Supply Systems
ANSI B16.5 Blind Forged Flanges uses in Power Plant
Blind Plate Flanges uses in Paper & Pulp Industry
Blind Flange uses in General Purpose Applications
Steel Blind Flanges uses in Fabrication Industry
Blind Flange uses in Food Processing Industry
Blind Flanges uses in Structural Pipe
Related products
ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F706
Products
