Shop No.9, 12/22, Bhabha chawl, 13th Khetwadi Lane, Mumbai - 400 004.
+91 98204 39990|   info@hindustanpipes.co.in|   www.hindustanpipes.co.in

Blind Flange


Hindustan pipes & Fittings is a dynamic group, which was established over a decade ago to cater to growing demands of Blind Flanges standards in ASME / ANSI B16.5 Flanges,ASME/ANSI B16.47 etc in all materials like Stainless Steel , Carbon Steel & High Nickel Alloys. We Manufacture, Export and Supply flanges which meets with national and international quality standards and producing base which owns equipments conforming to international technical level and is well equipped with a whole set of advanced plasma refining equipments.
We export our high quality Blind flanges to Kuwait, Egypt and Qatar.

specifications of Blind Flanges

Range: ½” (15 NB) to 48” (1200NB)
Pressure Ratings: 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS ASA 150, ASA 300, PN 6,10,16,25, 40,64,100,160 ETC. available with NACE MR 01-75

 

DIMENSIONS OF Blind Flanges

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


 

Dimensional Tolerances of Blind Flanges ASME B16.5

Outside Diameter
≤ 24 = 1.6 mm | > 24 = ± 3.2 mm
Inside Diameter
not applicable
Diameter of Contact Face
1.6 mm Raised Face = ± 0.8 mm
6.35 mm Raised Face, Tongue & Groove / Male-Female = ± 0.4 mm
Outside Diameter of Hub
≤ 12 = + 2.4 mm / - 1.6 mm | ≥ 14 = ± 3.2 mm
Diameter of Counterbore
not applicable
Drilling
Bolt Circle = 1.6 mm | Bolt Hole Spacing = ± 0.8 mm
Eccentricity of Bolt Circle with Respect to Facing
≤ 2½ = 0.8 mm max. | ≥ 3 = 1.6 mm max.
Thickness
≤ 18 = + 3.2 mm / - 0 | ≥ 20 = + 4.8 mm / - 0
Length thru Hub
≤ 18 = + 3.2 mm / - 0.8 mm | ≥ 20 = + 4.8 mm / - 1.6 mm

Notes
1. Dimensions are in millimeters unless otherwise indicated.
2. The length of the stud bolt does not include the height of the chamfers (points).

 

Packaging of Blind Flanges

Packaging: Blind Flanges is sleeved into plastic bag individually, ten pieces wrapped with water-proof material, bundled with nylon rope. Clear labels are tagged on the outside of the package for easy identification of the quantity and product I.D. Great care is taken during operation and transportation.

Prevent any damage.
During transportation items are tagged, packed in plastic bags and closed in carton boxes or seaworthy wooden cases.

plywood case,pallet and according to customer's requirment

Marking: Blind Flanges are marked with alloy name, outside diameter, wall thickness and heat number. Additional information like standard and alloy numbers can be added on request.

 

MATERIALS OF Blind Flanges

Stainless Steel
Blind Flanges

Carbon Steel
Blind Flanges

Duplex & Super duplex Steel
Blind Flanges

Nickel Alloy
Blind Flanges

Inconel
Blind Flanges

Incoloy
Blind Flanges

Hastelloy
Blind Flanges

Monel
Blind Flanges