Shop No.9, 12/22, Bhabha chawl, 13th Khetwadi Lane, Mumbai - 400 004.
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SPECTACLE BLIND FLANGES


Hindustan pipes & Fittings is a dynamic group, which was established over a decade ago to cater to growing demands of Spectacle 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 Spectacle Blind flanges to Kuwait, Egypt and Qatar.

SPECIFICATIONS OF ASME B16.48 SPECTACLE 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

 

Flange Facing Types

America Series:
Flat face(FF),Raised face(RF),Tongue(T),Groove(G),Female(F),Male(M),Ring type joints face(RJ/RTJ)

Europe Series:
Type A(Flat Face),Type B(Raised Face),Type C(Tongue),Type D(Groove),Type E(Spigot),Type F(Recess),Type G(O-Ring Spigot),Type H(O-Ring Groove)

 

DIMENSIONS OF ASME B16.48 SPECTACLE 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 Tolerance of ASME B16.5 Weld Neck Flanges

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).

 

MATERIALS OF BLIND FLANGES

Stainless Steel Blind Flanges

Carbon steel Blind Flanges

Duplex Steel Blind Flanges

Nickel Alloy Blind Flanges

Inconel Blind flanges

Incoloy Blind Flanges

Hastelloy Blind Flanges

Monel Blind Flanges