How do you verify the authenticity of the spectacle blind flange supplier?
To verify the authenticity of a flange spectacle flange supplier, you can conduct thorough research on them. But for that, you will have to find a list of spectacle blind flange supplier in UAE, and check their websites, reviews and customer feedback. Once you have shortlisted some, request relevant certifications to ensure their compliance with quality management standards. You can also consider conducting a site audit to assess their manufacturing capabilities and quality control processes. Alternatively, you can visit platforms that list top suppliers of spectacles flange like Schulzmaan. These platforms only list the most reputed and reliable spec blind flange supplier and save a lot of your time and effort.
What are some cost-saving tips when purchasing stainless steel spectacle blind flange?
What is the purpose of the solid plate and the open ring in a ASME B16.48 spectacle blind flange?
The solid plate acts as a barrier and completely blocks the flow when installed. The open ring in an ASME B16.48 spectacle blind flange allows visual confirmation of the flow status by creating a gap. This configuration is versatile for operations where temporary flow monitoring or isolation is required in a piping system.
Table of content
Spectacle Blind Flanges
Size
Class
ASTM
ASME
Specifications | Spectacle Blind Flange |
---|---|
Size | 1/2” to 60”, DN 12mm to DN 1500mm |
Class | Class 150 to Class 2,500, PN 2.5 to PN 250 |
Equipment | Pushing Machine Press machine electric bevelling machine |
Supporting Material For Flanges | Gasket/ Ring Joint/ Flanges Bolts |
Certificate | ISO |
Methods Of Forging | Casting Forging Rolling Cutting |
Testing | Hydrostatic testing machine Magnetic particle detector Direct-reading Spectrograph UI trasonic flaw detector |
Description | Price In US ($) |
---|---|
A182 GR.F316L, FLANGE-SPECTACLE BLIND, ASME CLASS 1500 RTJ | US $51.03 Per KG |
A182 GR.F51/F60, FLANGE-SPECTACLE BLIND, ASME CLASS 900 RTJ | US $657.33 Per KG |
SIZE: 323.90MM,150 FF ASME B16.48, CUNI 90/10, SOLID SPECTACLE BLIND FLANGE, ASTM C70600 | US $1164.43 Per KG |
SIZE: 267.00MM,150 FF ASME B16.48, CUNI 90/10, SOLID SPECTACLE BLIND FLANGE, ASTM C70600 | US $1552.57 Per KG |
ASTM C70600, SIZE: 108.00MM,150 FF ASME B16.48, CUNI 90/10, SOLID SPECTACLE BLIND FLANGE | US $174.94 Per KG |
ASTM C70600, SIZE: 108.00MM, 150, FF CUNI 90/10, SOLID SPECTACLE BLIND FLANGE, ASME B16.48 | US $349.87 Per KG |
SA182F316/316L, 25NB, SPECTACLE BLIND, SERRATED FLAT FACE, #300 | US $3669.42 Per KG |
40NB, SPECTACLE BLIND, FLANGES, SA182F316/316L, SERRATED FLAT FACE, #300, ASME B16.48 | US $5889.65 Per KG |
20NB, SPECTACLE BLIND, /316L, SERRATED FLAT FACE, #300, ASME B16.48 | US $1691.72 Per KG |
ASTM B124 C11000 ,RF, ASME B16.48, COPPER, SOLID SPECTACLE BLIND FLANGE, SIZE:60.32MM OD | US $44.41 Per KG |
A182 GR.F51/F60, FLANGE-SPECTACLE BLIND, ASME CLASS 1500 RTJ | US $127.15 Per KG |
SIZE: 267.00MM,150 FF ASME B16.48, CUNI 90/10, SOLID SPECTACLE BLIND FLANGE, ASTM C70600 | US $1552.67 Per KG |
CARBON STEEL : DN 650, SPECTACLE BLIND FLANGE #150 | US $683.01 Per KG |
SPECTACLE-BLIND, 2 Inch, 600LB, RF, A515 GR 70 B16.48 | US $151.48 Per KG |
SPECTACLE-BLIND, 2 Inch, 150LB, RF, B462 UNS N08020 B16.48 | US $405.33 Per KG |
Types Of ASME B16.48 Spectacle Flange
Spectacle Blind
Carbon Steel Spectacle Blind Flanges
Stainless Steel Spectacle Blind Flanges
Spectacle Flanges
SA 516 Gr 70 Spectacle Blind Flange
Stainless Steel Spade Blinds
Paddle Blind Flanges
Line Blanks Flanges
Figure-8 Blind Flanges
Paddle Blind Flanges
ASME B16.48 Spectacle Blind Flanges
Spade Blind Flanges
Spectacle Blind Open
Paddle Blind And Spacer
Piping Spectacle Blind
ASTM A105 Spectacle Blind Flanges
SS 316 Spectacle Blind Flanges
A105 Carbon Steel Figure 8 Spectacle Blind
ASME B16.48 Spectacle Blind Flange Dimensions
Class 150 Spectacle Blind Flange Dimensions
NPS | Class 150 | |||||
(A) | (B) | (C) | (D) | (E) | (F) | |
1/2" | 5/8 | 1-3/4 | 2-3/8 | 5/8 | 1-1/2 | 1/4 |
3/4" | 13/16 | 2-1/8 | 2-3/4 | 5/8 | 1-1/2 | 1/4 |
1" | 1-1/8 | 2-1/2 | 3-1/8 | 9/16 | 1-1/2 | 1/4 |
1-1/4" | 1-5/8 | 2-7/8 | 3-1/2 | 9/16 | 1-1/2 | 1/4 |
1-1/2" | 1-7/8 | 3-1/4 | 3-7/8 | 9/16 | 1-1/2 | 1/4 |
2" | 2-3/8 | 4 | 4-3/4 | 11/16 | 2 | 1/4 |
2-1/2" | 2-7/8 | 4-3/4 | 5-1/2 | 11/16 | 2 | 1/4 |
3" | 3-1/2 | 5-1/4 | 6 | 11/16 | 2-1/2 | 1/4 |
3-1/2" | 4 | 6-1/4 | 7 | 3/4 | 2-1/2 | 3/8 |
4" | 4-1/2 | 6-3/4 | 7-1/2 | 3/4 | 2-1/2 | 3/8 |
5" | 5-9/16 | 7-5/8 | 8-1/2 | 7/8 | 3 | 3/8 |
6" | 6-5/8 | 8-5/8 | 9-1/2 | 7/8 | 3 | 1/2 |
8" | 8-5/8 | 10-7/8 | 11-3/4 | 7/8 | 3 | 1/2 |
10" | 10-3/4 | 13-1/4 | 14-1/4 | 1 | 4 | 5/8 |
12" | 12-3/4 | 16 | 17 | 1 | 4 | 3/4 |
14" | 14 | 17-5/8 | 18-3/4 | 1-1/8 | 4-1/4 | 3/4 |
16" | 16 | 20-1/8 | 21-1/4 | 1-1/8 | 4-1/4 | 7/8 |
18" | 18 | 21-1/2 | 22-3/4 | 1-1/4 | 4-1/2 | 1 |
20" | 20 | 23-3/4 | 25 | 1-1/4 | 4-3/4 | 1-1/8 |
24" | 24 | 28-1/8 | 29-1/2 | 1-3/8 | 5-1/2 | 1-1/4 |
Class 300 Spectacle Blind Flanges Dimensions
NPS | Class 300 | |||||
(A) | (B) | (C) | (D) | (E) | (F) | |
1/2" | 5/8 | 2 | 2-5/8 | 5/8 | 1-1/2 | 1/4 |
3/4" | 13/16 | 2-1/2 | 3-1/4 | 3/4 | 1-1/2 | 1/4 |
1" | 1-1/8 | 2-3/4 | 3-1/2 | 11/16 | 1-1/2 | 1/4 |
1-1/4" | 1-5/8 | 3-1/8 | 3-7/8 | 11/16 | 1-1/2 | 1/4 |
1-1/2" | 1-7/8 | 3-5/8 | 4-1/2 | 7/8 | 2 | 1/4 |
2" | 2-3/8 | 4-1/4 | 5 | 3/4 | 2 | 3/8 |
2-1/2" | 2-7/8 | 5 | 5-7/8 | 7/8 | 2-1/2 | 3/8 |
3" | 3-1/2 | 5-3/4 | 6-5/8 | 7/8 | 2-1/2 | 3/8 |
3-1/2" | 4 | 6-3/8 | 7-1/4 | 7/8 | 2-1/2 | 1/2 |
4" | 4-1/2 | 7 | 7-7/8 | 7/8 | 2-1/2 | 1/2 |
5" | 5-5/8 | 8-3/8 | 9-1/4 | 7/8 | 3 | 5/8 |
6" | 6-5/8 | 9-3/4 | 10-5/8 | 7/8 | 3 | 5/8 |
8" | 8-5/8 | 12 | 13 | 1 | 3-1/2 | 7/8 |
10" | 10-3/4 | 14-1/8 | 15-1/4 | 1-1/8 | 4 | 1 |
12" | 12-3/4 | 16-1/2 | 17-3/4 | 1-1/4 | 4 | 1-1/8 |
14" | 14 | 19 | 20-1/4 | 1-1/4 | 4-3/4 | 1-1/4 |
16" | 16 | 21-1/8 | 22-1/2 | 1-3/8 | 4-7/8 | 1-1/2 |
18" | 18 | 23-3/8 | 24-3/4 | 1-3/8 | 4-1/2 | 1-5/8 |
20" | 20 | 25-5/8 | 27 | 1-3/8 | 4-3/4 | 1-3/4 |
24" | 24 | 30-3/8 | 32 | 1-5/8 | 5-1/2 | 2 |
Class 600 Spectacle Blind Flanges Dimensions
NPS | Class 600 | |||||
(A) | (B) | (C) | (D) | (E) | (F) | |
1/2" | 5/8 | 2 | 2-5/8 | 5/8 | 1-1/2 | 1/4 |
3/4" | 13/16 | 2-1/2 | 3-1/4 | 3/4 | 1-1/2 | 1/4 |
1" | 1-1/8 | 2-3/4 | 3-1/2 | 3/4 | 2-1/4 | 1/4 |
1-1/4" | 1-7/16 | 3-1/8 | 3-7/8 | 3/4 | 2-1/4 | 3/8 |
1-1/2" | 1-11/16 | 3-5/8 | 4-1/2 | 7/8 | 2-5/8 | 3/8 |
2" | 2-1/8 | 4-1/4 | 5 | 3/4 | 2-1/4 | 3/8 |
2-1/2" | 2-5/8 | 5 | 5-7/8 | 7/8 | 2-5/8 | 1/2 |
3" | 3-1/4 | 5-3/4 | 6-5/8 | 7/8 | 2-5/8 | 1/2 |
3-1/2" | 3-3/4 | 6-1/4 | 7-1/4 | 1 | 3 | 5/8 |
4" | 4-1/4 | 7-1/2 | 8-1/2 | 1 | 3 | 5/8 |
5" | 5-1/4 | 9-3/8 | 10-1/2 | 1-1/8 | 3-3/8 | 3/4 |
6" | 6-3/8 | 10-3/8 | 11-1/2 | 1-1/8 | 3-3/8 | 7/8 |
8" | 8-3/8 | 12-1/2 | 13-3/4 | 1-1/4 | 3-3/4 | 1-1/8 |
10" | 10-7/16 | 15-5/8 | 17 | 1-3/8 | 4-1/8 | 1-3/8 |
12" | 12-3/8 | 17-7/8 | 19-1/4 | 1-3/8 | 4-1/8 | 1-5/8 |
14" | 13-5/8 | 19-1/4 | 20-3/4 | 1-1/2 | 4-1/2 | 1-3/4 |
16" | 15-5/8 | 22-1/8 | 23-3/4 | 1-5/8 | 4-7/8 | 2 |
18" | 17-5/8 | 24 | 25-3/4 | 1-3/4 | 5-1/4 | 2-1/8 |
20" | 19-5/16 | 26-3/4 | 28-1/2 | 1-3/4 | 5-1/4 | 2-1/2 |
24" | 23-1/2 | 31 | 33 | 2 | 6 | 2-7/8 |
Class 900 Spectacle Blind Flanges Dimensions
NPS | Class 900 | |||||
(A) | (B) | (C) | (D) | (E) | (F) | |
1/2" | 0.625 | 2.375 | 3.25 | - | 1.50 | 1/4 |
3/4" | 0.0825 | 2.625 | 3.50 | 0.875 | 1.625 | 1/4 |
1" | 1.05 | 3.0 | 4.0 | 1.0 | 2.25 | 1/4 |
1-1/4" | 1.44 | 3.375 | 4.375 | 1.0 | 2.25 | 3/8 |
1-1/2" | 1.68 | 3.5 | 4.875 | 1.125 | 2.625 | 3/8 |
2" | 2.16 | 5.5 | 6.5 | 1.0 | 2.25 | 1/2 |
2-1/2" | 2.64 | 6.375 | 7.5 | 1.125 | 2.625 | 1/2 |
3" | 3.25 | 6.5 | 7.5 | 1.0 | 2.625 | 5/8 |
4" | 4.25 | 8.0 | 9.25 | 1.25 | 3.0 | 3/4 |
5" | 5.3 | 9.625 | 11.0 | 1.375 | 3.375 | 7/8 |
6" | 6.36 | 11.25 | 12.5 | 1.25 | 3.375 | 1 |
8" | 8.33 | 14.0 | 15.5 | 1.5 | 3.75 | 1-3/8 |
10" | 10.42 | 17.0 | 18.5 | 1.5 | 4.125 | 1-5/8 |
12" | 12.39 | 19.5 | 21.0 | 1.5 | 4.125 | 1-7/8 |
14" | 13.62 | 20.375 | 22.0 | 1.625 | 4.5 | 2-1/8 |
16" | 15.62 | 22.5 | 24.25 | 1.75 | 4.875 | 2-3/8 |
18" | 17.62 | 25.0 | 27.0 | 2.0 | 5.25 | 2-5/8 |
20" | 19.56 | 27.375 | 29.5 | 2.125 | 5.25 | 2-7/8 |
24" | 23.5 | 32.875 | 35.5 | 2.625 | 6.0 | 3-1/2 |
Class 1500 Spectacle Blind Flanges Dimensions
NPS | Class 1500 | |||||
(A) | (B) | (C) | (D) | (E) | (F) | |
1/2" | 0.625 | 2.375 | 3.25 | - | 1.50 | 1/4 |
3/4" | 0.82 | 2.625 | 3.50 | 0.875 | 1.625 | 3/8 |
1" | 1.05 | 3.0 | 4.0 | 1.0 | 2.5 | 3/8 |
1-1/4" | 1.375 | 3.375 | 4.375 | 1.0 | 2.5 | 3/8 |
1-1/2" | 1.61 | 3.75 | 4.875 | 1.125 | 2.75 | 1/2 |
2" | 2.07 | 5.5 | 6.5 | 1.0 | 2.75 | 1/2 |
2-1/2" | 2.47 | 6.375 | 7.5 | 1.125 | 3.0 | 5/8 |
3" | 3.07 | 6.75 | 8.0 | 1.25 | 3.0 | 3/4 |
4" | 4.03 | 8.125 | 9.5 | 1.375 | 3.5 | 7/8 |
5" | 5.05 | 9.875 | 11.5 | 1.625 | 3.5 | 1-1/8 |
6" | 6.06 | 11.0 | 12.5 | 1.5 | 3.5 | 1-3/8 |
8" | 7.98 | 13.75 | 15.5 | 1.75 | 4.0 | 1-5/8 |
10" | 10.02 | 17.0 | 19.0 | 2.0 | 4.5 | 2 |
12" | 11.94 | 20.375 | 22.5 | 2.125 | 4.5 | 2-3/8 |
14" | 13.12 | 22.625 | 25.0 | 2.375 | 5.0 | 2-5/8 |
16" | 15.0 | 25.125 | 27.75 | 2.625 | 5.25 | 3 |
18" | 16.88 | 27.625 | 30.5 | 2.875 | 5.75 | 3-3/8 |
20" | 18.81 | 29.625 | 32.75 | 3.125 | 6.0 | 3-3/4 |
24" | 22.62 | 35.375 | 39.0 | 3.625 | 7.0 | 4-3/8 |
Class 2500 Spectacle Blind Flanges Dimensions
NPS | Class 2500 | |||||
(A) | (B) | (C) | (D) | (E) | (F) | |
1/2" | 0.625 | 2.625 | 3.5 | - | 1.50 | 3/8 |
3/4" | 0.82 | 2.875 | 3.75 | 0.875 | 1.625 | 3/8 |
1" | 1.05 | 3.25 | 4.25 | 1.0 | 2.5 | 3/8 |
1-1/4" | 1.38 | 4.0 | 5.125 | 1.125 | 2.5 | 1/2 |
1-1/2" | 1.61 | 4.5 | 5.75 | 1.25 | 2.75 | 5/8 |
2" | 2.07 | 5.625 | 6.75 | 1.125 | 2.75 | 5/8 |
2-1/2" | 2.47 | 6.5 | 7.75 | 1.25 | 3.0 | 3/4 |
3" | 3.07 | 7.625 | 9.0 | 1.375 | 3.0 | 7/8 |
4" | 4.03 | 9.125 | 10.75 | 1.625 | 3.5 | 1-1/8 |
5" | 5.05 | 10.875 | 12.75 | 1.875 | 3.5 | 1-3/8 |
6" | 6.06 | 12.375 | 14.5 | 2.125 | 3.5 | 2 |
8" | 7.81 | 15.125 | 17.25 | 2.125 | 4.0 | 2-1/8 |
10" | 9.75 | 18.625 | 21.25 | 2.625 | 4.5 | 2-5/8 |
12" | 11.37 | 21.5 | 24.375 | 2.875 | 4.5 | 3-1/8 |
DN | Normal Pipe Size | Weight As Per Kilogram |
---|---|---|
15 | 1/2 | |
20 | 3/4 | 0.4 |
25 | 1 | 0.6 |
40 | 1 1/2 | 0.8 |
50 | 2 | 1.7 |
80 | 3 | 4.6 |
100 | 4 | 6.5 |
150 | 6 | 11.9 |
200 | 8 | 30 |
250 | 10 | 58 |
300 | 12 | 101 |
Spectacle Blind Thickness Calculation
NPS | OD | ID | Center Line | Thickness | Width Of Web |
---|---|---|---|---|---|
inch | A | B | C | t | W |
1/2″ | 45 | 16 | 60 | 3 | 38 |
3/4″ | 54 | 21 | 70 | 3 | 38 |
1″ | 64 | 27 | 80 | 3 | 38 |
1-1/4″ | 73 | 42 | 90 | 6.4 | 38 |
1-1/2″ | 83 | 48 | 100 | 6.4 | 38 |
2″ | 102 | 61 | 120 | 6.4 | 51 |
2-1/2″ | 107 | 73 | 140 | 6.4 | 51 |
3″ | 133 | 89 | 150 | 6.4 | 64 |
3-1/2″ | 159 | 102 | 175 | 9.7 | 64 |
4″ | 172 | 114 | 190 | 9.7 | 64 |
5″ | 194 | 141 | 215 | 9.7 | 76 |
6″ | 219 | 168 | 240 | 12.7 | 76 |
8″ | 276 | 219 | 300 | 12.7 | 76 |
10″ | 337 | 273 | 360 | 15.7 | 102 |
12″ | 406 | 324 | 430 | 19.1 | 102 |
14″ | 448 | 356 | 475 | 19.1 | 108 |
16″ | 511 | 406 | 460 | 22.4 | 108 |
18″ | 546 | 457 | 580 | 25.4 | 114 |
20″ | 603 | 508 | 635 | 28.4 | 121 |
24″ | 714 | 610 | 750 | 31.8 | 140 |
API 590 Spectacle Blind Dimensions
DN | D | B | Q | L | T1 | G | T | KG |
15 | 38 | 17 | 10 | 60 | 4 | 12 | 8 | 0.24 |
20 | 48 | 23 | 15 | 60 | 4 | 12 | 8 | 0.31 |
25 | 58 | 29 | 15 | 60 | 4 | 12 | 8 | 0.4 |
40 | 78 | 43 | 15 | 60 | 4 | 14 | 8 | 0.62 |
50 | 88 | 55 | 15 | 60 | 6 | 14 | 8 | 0.78 |
80 | 124 | 83 | 30 | 60 | 6 | 18 | 8 | 1.35 |
100 | 144 | 108 | 30 | 70 | 6 | 18 | 8 | 1.67 |
200 | 254 | 210 | 40 | 70 | 8 | 18 | 12 | 6.64 |
300 | 363 | 312 | 40 | 80 | 8 | 22 | 15 | 15.77 |
400 | 463 | 393 | 50 | 80 | 10 | 22 | 18 | 31.07 |
500 | 568 | 495 | 50 | 80 | 10 | 22 | 22 | 54.91 |
600 | 667 | 597 | 50 | 80 | 10 | 27 | 25 | 82.84 |
Stainless Steel Spectacle Blind Flanges Gasket
Class 150 Blanks Flange For Use With RF Flanges Dimensions
ID B, Normal Pipe Size millimeter | OD, O, millimeter | Centerline Dimension, A, millimeter | Thickness, t, millimeter | Web Width, W, millimeter |
1⁄2 | 45 | 60 | 3.0 | 38 |
3⁄4 | 54 | 70 | 3.0 | 38 |
1 | 64 | 80 | 3.0 | 38 |
11⁄4 | 73 | 90 | 6.4 | 38 |
11⁄2 | 83 | 100 | 6.4 | 38 |
2 | 102 | 120 | 6.4 | 51 |
21⁄2 | 107 | 140 | 6.4 | 51 |
3 89 | 133 | 150 | 6.4 | 64 |
31⁄2 | 159 | 175 | 9.7 | 64 |
4 | 172 | 190 | 9.7 | 64 |
5 | 194 | 215 | 9.7 | 76 |
6 | 219 | 240 | 12.7 | 76 |
8 | 276 | 300 | 12.7 | 76 |
10 | 337 | 360 | 15.7 | 102 |
12 | 406 | 430 | 19.1 | 102 |
14 | 448 | 475 | 19.1 | 108 |
16 | 511 | 460 | 22.4 | 108 |
18 | 546 | 580 | 25.4 | 114 |
20 | 603 | 635 | 28.4 | 121 |
24 | 714 | 750 | 31.8 | 140 |
Figure-8 Blind Flanges Application
applied to permanently separating pipesystems
Applicable Line Blanks Dimensional Standards
Dimensional Standards
What is the role of pressure in the performance of a carbon steel spectacle blind flange?
The carbon steel spectacle blind flange can withstand and contain the pressure within the piping system when the blind plate is in place. This will ensure a reliable and leak proof seal. The pressure rating of the flange determines its maximum working pressure capacity. Selecting the appropriate pressure rating is essential to maintain the integrity and safety of the piping system.
How does the ASME B16.48 standard affect the design of figure 8 blind flange?
The ASME B16.48 standard provides guidelines for the design and dimensions of a figure 8 blind flange. It specifies the requirements for flange sizes, pressure ratings, facing types and materials used. The standard ensures that the flanges meet the necessary standards for compatibility, interchangeability and structural integrity.
Difference between ASME class 150 and ASME class 300 pressure rating in spectacle flanges
The difference between ASME Class 150 and 300 pressure ratings in spectacle flanges is in their maximum working pressure capacities. The higher-pressure rating of Class 300 flanges makes them suitable for higher pressure applications than Class 150 flanges.