ASME B16.5 Blind Flanges, ASME / ANSI B16.5 Blind Flanges ,ASME 16.47 Blind Flanges at best price.

DM Special Steel Ltd offer a wide selection of ASME B16.5 Blind Flanges , Industrial Blind Flanges

 

  Blind Flanges

DM Special Steel Ltd manufacturer & exporter of Blind Flanges availbale in various forms and size, standards like ASME B16.5 flanges, ASME B16.47 Flanges.We also offer custom-made Blind flanges that have been widely appreciated by our clients.
Blind Flange is a Flange which has no bore hole and consequently it is used to close the end of a piping system. The Blind Flange is sometimes machined to accept a pipe of the nominal size to which reduction is being made. The Blind Flange reduction can be either threaded or welded. A Blind Flange also allows easy access to a line once it has been sealed.

Specifications of  Blind Flanges
Dimensions of  Blind Flanges
Production of  Blind Flanges
Packaging of  Blind Flanges
Materials of  Blind Flanges

 

Specifications of Blind Flanges

Size : ½" (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.

Available ASTM standard:

ASTM / ASME SB 564 / 160 / 472.
ASTM / ASME SB 61 / 62 / 151 / 152
ASTM / ASME A/SA 182 UNS F 44, F 45, F51, F 53, F 55, F 60, F 61.
ASTM SA 240, ASTM A182
ASTM SA 182 F1/F5/F9/F11/F22/F91
ASTM A 105 Gr. F42/46/52/56/60/65/70
ASTM A350 LF2/A350 LF3

Dimensions of Blind Flanges ASME B16.5

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).

 

 

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Production of Blind Flanges

Blind Flanges production and processing of finished solution treatment must be enclosed , so that product performance is optimal. At DM Special Steel Ltd Factory owned pneumatic marking machine, all flanges are available to customers free typing products, customers can be requested marked material, pressure , caliber, production standards or customer to provide own special text.
Production and processing is completed will use ultrasonic cleaners to clean the product in order to ensure clean surface free of dust and impurities without oil.

Applications Of Blind Flanges
  • Industrial Blind Flanges used in Chemical and petrochemical processing
  • Industrial Blind Flanges used in electronics
  • Industrial Blind Flanges used in processing equipment for maintaining product purity in handling foods, synthetic fibers
  • Industrial Blind Flanges used in marine and offshore engineering
Characteristics of Blind Flanges
  • Indutsrial Blind Flanges is highly resistant to various reducing chemicals
  • Indutsrial Blind Flanges is excellent resistance to caustic alkalies
  • Indutsrial Blind Flanges is high electrical conductivity
  • Indutsrial Blind Flanges is excellent corrosion resistance to distilled and natural waters
  • Indutsrial Blind Flanges is resistance to neutral and alkaline salt solutions
  • Indutsrial Blind Flanges is excellent resistance to dry fluorine
  • Indutsrial Blind Flanges is widely used to handle caustic soda
  • Indutsrial Blind Flanges is good thermal, electrical and magnetostrictive properties
  • Indutsrial Blind Flanges is offers some resistance to hydrochloric and sulfuric acids at modest temperatures and concentrations

 

Packaging of Blind Flanges

At DM Special Steel Ltd will be special Blind flanges with plastic cover to ensure the integrity of sealing surface. Bubble bag, then put in to export wooden neatly in to products during transportation to prevent bumps , scratches and other situations encountered or as per customer requirement.

 

 

 

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