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Stainless Steel Spade Blinds and ASTM A105 Figure 8 Spectacle Blind manufacturer in India


Spectacle Blind Flange



Spectacle Blind Specification


Specification Spectacle Blind Flange
Spectacle Blind Flange Uses Spectacle Blinds are simple safety devices that are installed between two pipe flanges.
Size Chart 1/2 Inch to 36 Inch, (Customized Up to 48")
Thickness Sch 10S To SCH 180
Supporting Material Gasket/ Ring Joint/ Flange Bolts
Test Certificates EN 10204/3.1B
Raw Materials Certificate
100% Radiography Test Report
Third Party Inspection Report, etc
Production Technique Forged/ Heat treated and machined
Manufacturer of Forged/ Threaded/ Screwed / Plate
Manufacturer Pressure Class Class 150 (lb) up to 24"
Class 300 (lb) up to 20"
Class 600 (lb) up to 20"
Class 900 (lb) up to 16"
Class 1500 (lb) up to 10"
Class 2500 (lb) up to 8"
Flange Test Hydrostatic testing machine/ UI trasonic flaw detector/ X-ray detector/ Direct-reading Spectrograph/ Magnetic particle detector
Flange Equipment Pushing Machine/ electric bevelling machine/ Press machine/ Bending machine/ Sand-blasting machine etc
Coating Anti-rust Paint/ Zinc Plated/ Oil Black Paint/ Yellow Transparent/ Cold and Hot Dip Galvanized
Application Bitumen upgraders
Heavy oil refineries.
Nuclear power (mostly seamless).
Petrochemicals and acids.
  • Price stability can be seen in Spectacle Blind Flange manufacturers in India
  • ASME B16.48 have high corrosion resistance, particularly to stress corrosion cracking
  • Buy from Spectacle Blind manufacturers in India for factory price

Contact directly an ASTM A350 LF2 Spec Blinds and SS 304 Spectacle Blind Flange manufacturer in India for lowest price and fast delivery


Spectacle Blind Price


Type Of Flange Size In Inch SCH Class Grade Price In INR (India) Per Piece
Spectacle Blind Flange 4 40 150 ASTM A105 A105 674.00
- 6 40 150 - 898.00
- 8 40 150 - 1254.00
- 10 40 150 - 1563.00
- 12 80 300 - 2231.00
- 14 80 300 - 2987.00
- 16 80 300 - 3676.00
- 18 80 300 - 4327.00
Spectacle Blind Flange 20 80 300 ASTM A105 A105 6743.00

Carbon Steel Paddle Blind Flanges and 316 Stainless Steel Slip Blind export with Visual, dimensional, thickness control


ASME 16.48 Spectacle Blind Flange Dimensions


ASME 16.48 Spectacle Blind Flange Dimensions

Size in InchSize in MMInner DiameterOuter Diameter (O.D.)Center-CenterWall ThicknessWidth Of WebWeb ThicknessHole DiameterSpectacle Blind Weight in (KG)Paddle Blank Weight in (KG)Paddle Spacer Blank Weight (Kg)
1/215164560338215.8750.070.030.03
3/420215470338215.8750.10.050.04
125276480338215.8750.140.070.06
1 1/4324273906.438415.8750.350.210.14
1 1/24048831006.438415.8750.460.270.18
250611021206.451419.050.680.410.26
2 1/265731071406.451419.050.70.460.24
380891331506.464419.051.10.710.39
3 1/2901021591759.764519.052.441.540.9
41001141721909.764519.052.811.81.01
51301411942159.776522.2253.372.291.08
615016821924012.776722.2255.393.821.57
820021927630012.7761022.2258.326.072.25
1025027333736015.71021225.415.0411.193.84
1230032440643019.11021525.426.9519.777.18
1435035644847519.11081528.57532.9424.078.87
1640040651154022.41081728.57550.2736.7313.54
1845045754658025.41142031.7561.7947.5514.23
2050050860363528.41212231.7583.6764.8518.82
2460061071475031.81402434.925129.3101.827.49

Spectacle Blind Uses And Application


Spectacle Blind Uses And Application
  • Specialty Chemicals
  • Power Generation
  • Condensers
  • Chemical Equipment
  • Gas Processing
  • Pulp and Paper Industry
  • Sea Water Equipment
  • Pharmaceutical Equipment
  • Off-Shore Oil Drilling Companies
  • Petrochemicals
  • Heat Exchangers
  • Pharmaceuticals

Spectacle Blind Weight


DN NPS Weight In KG
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

Check Alloy Steel Spectacle Blind purpose and dimensions of ASTM A182 F11 Spade Blind Flange and 316 SS Spectacle Blank with sealing face

Types Of Blinds In Piping


Stainless Steel Spectacle Blind Flanges

Stainless Steel Spectacle Blind Flanges

Carbon Steel Spectacle Blind Flanges

Carbon Steel Spectacle Blind Flanges

Spectacle Blind

Spectacle Blind

Spectacle Flange

Spectacle Flange

Spectacle Blinds

Spectacle Blinds

Pn16 Spectacle Blind Flanges

Pn16 Spectacle Blind Flanges

Stainless Steel Spade Blinds

Stainless Steel Spade Blinds

 Carbon Steel Paddle Blind Flanges

Carbon Steel Paddle Blind Flanges

Duplex Spec Blinds

Duplex Spec Blinds

Super Duplex Spade Blind Flanges

Super Duplex Spade Blind Flanges

Titanium Slip Blind Flanges

Titanium Slip Blind Flanges

Mild Steel Spectacle Blank

Mild Steel Spectacle Blank

Nickel Alloy Figure 8 Blind Flanges

Nickel Alloy Figure 8 Blind Flanges

 Copper Spectacle Blind Open

Copper Spectacle Blind Open

Inconel Paddle Blind And Spacer

Inconel Paddle Blind And Spacer

Ductile Iron Spectacles For Blind

Ductile Iron Spectacles For Blind

 Gi Spectacle Blind And Spacer

Gi Spectacle Blind And Spacer

Aluminum Slip Blind Plate

Aluminum Slip Blind Plate

Alloy Steel Piping Spectacle Blind

Alloy Steel Piping Spectacle Blind

 ASTM A105 Spectacle Blind Figure 8

ASTM A105 Spectacle Blind Figure 8

A350 LF2 Spade Spacer Spectacle Blind

A350 LF2 Spade Spacer Spectacle Blind

SS 304 Pipe Skillet Blind

SS 304 Pipe Skillet Blind

 316 SS Vented Blind Flanges

316 SS Vented Blind Flanges

UNS S31803 Spade Line Blinds

UNS S31803 Spade Line Blinds

A182 Gr F316 Spectacle Blind

A182 Gr F316 Spectacle Blind

 ASTM A105 Figure 8 Spectacle Blind

ASTM A105 Figure 8 Spectacle Blind

316 Stainless Steel Slip Blind

316 Stainless Steel Slip Blind


Spectacle Blind Installation


Spectacle Blind Installation

Spectacle Blind Thickness


Spectacle Blind Thickness

API 590 Spectacle Blind Dimensions

  • Face: FF
  • Size: 10 Inch (DN250)
  • Standards: API 590
  • Pressure: 600LB (PN100)
  • Materials: ASTM A105

API 590 Spectacle Blind Dimensions

DN(D)(B)(Q)(L)(T1)(G)(T)(Kilogram)
153817106041280.24
204823156041280.31
255829156041280.4
407843156041480.62
508855156061480.78
8012483306061881.35
100144108307061881.67
2002542104070818126.64
30036331240808221515.77
400463393508010221831.07
500568495508010222254.91
600667597508010272582.84

30 Inch Spectacle Blind Dimensions


30 Inch Spectacle Blind Dimensions

Normal Size       Weights  
  23,4
12 1/21.053 1/8 1/441 1/2…….111
1 1/23 1/41.93 7/8 1/441 1/2……..111
242.384 3/4 1/442……..212
2 1/24 3/42.885 1/2 1/442……..223
35 1/43.56 1/442 1/2……..223
46 3/44.57 1/2 3/842 1/2……..325
68 5/86.629 1/2 1/243……..7410
810 7/88.6211 3/4 1/243…….14720
1013 1/410.7514 1/4 5/854………261235
121612.7517 3/454……..452162
1417 1/21418 3/4 3/454 1/4……..532474
16201621 1/4 7/854 1/41 1/29240127
1821 3/81822 3/4154 1/21 1/210539139
2023 5/820251 1/854 3/41 1/214550188
24282429 1/21 1/455 1/21 1/224580315
3034 1/230361 5/855 1/21 1/2437128555
36413642 3/4265 1/21 3/4757203945

Spectacle Blind Gasket


Spectacle Blind Gasket

Paddle Blind Flange Dimensions


Paddle Blind Flange Dimensions

SIZEODThicknessWeight
1/21-3/41/41
3/42-1/81/41
12-1/21/41
1-1/42-7/81/41
1-1/23-1/41/41
241/42
2-1/24-3/41/42
35-1/41/42
3-1/26-1/43/84
46-3/43/85
57-5/83/86
68-5/81/210
810-7/81/215
1013-1/45/826
12163/447
1417-5/83/456
1620-1/87/884

Slip Blind Flange Dimensions


Slip Blind Flange Dimensions

ASME B16.48 Standard


ASME B16.48 Standard

Spectacle Blind Flange Drawing


Spectacle Blind Flange Drawing

Spectacle Blind Flange Hs Code


HS Code Description
73072100 SPECTACLE BLIND RTJ 2 CLASS 600# ASTM A240 UNS S31254

Spectacle Blind Flange ASME B16.48 Manufacturing Process


Spectacle Blind Flange ASME B16.48 Manufacturing Process

Raw Material

  • Raw Materia
  • Materia Dimension And Visual
  • Materia Quantity
Spectacle Blind Flange ASME B16.48 Manufacturing Process

Inspection

  • Chemical And Mechanical Analysis
  • Analysis Of Preservation Certificate
Spectacle Blind Flange ASME B16.48 Manufacturing Process

Cutting

  • Cut Surface
  • Marking
  • Weight Measuring
Spectacle Blind Flange ASME B16.48 Manufacturing Process

Forging Flanges

  • Grade Of Material
  • Control Flanges Temperature
Spectacle Blind Flange ASME B16.48 Manufacturing Process

Heat Treatment

  • Flanges Solution Treatment
  • Flanges Mechanical Test
  • Normalizing
Spectacle Blind Flange ASME B16.48 Manufacturing Process

Forging Rolling Of Flanges

  • Check Dimension
  • Check Marking
  • Check Weight
Spectacle Blind Flange ASME B16.48 Manufacturing Process

Final Inspection Of Pipe Flanges

  • Test Of Visual
  • Test Of Nondestructive
Spectacle Blind Flange ASME B16.48 Manufacturing Process

Rust Prevention

  • View Preserve
  • Marking
  • Heat Number
Spectacle Blind Flange ASME B16.48 Manufacturing Process

Packaging

  • Specification Of Packing
  • Inspection Of Packing
  • Delivery Time And Day

How To Calculation Spectacle Blind Flange Thickness?


How To Calculation Spectacle Blind Flange Thickness

Class 150 Spectacle Blind Flange Dimensions


Class 150 Spectacle Blind Flange Dimensions

Normal Pipe Size
Class 150
FLANGES
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 Flange Dimensions


Class 300 Spectacle Blind Flange Dimensions

Normal Pipe Size
Class 300
FLANGES
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 Flange Dimensions


Class 600 Spectacle Blind Flange Dimensions

Normal Pipe Size
Class 600
FLANGES
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 Flange Dimensions


Class 900 Spectacle Blind Flange Dimensions

Normal Pipe Size
Class 900
FLANGES
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 Flange Dimensions


Class 1500 Spectacle Blind Flange Dimensions

Normal Pipe Size
Class 1500
FLANGES
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 Flange Dimensions


Class 2500 Spectacle Blind Flange Dimensions

Normal Pipe Size
Class 2500
FLANGES
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

ASME B16.48 Facing Types


ASME B16.48 Facing Types
Vishal Steel offer best price of Flat Face FF and Raised Face A182 Gr F316 Figure 8 Blind Flange, Duplex UNS S31803 Paddle Blind and Spacer material in India

Figure 8 Spectacle Blind Marking Method


The marking shall be applied by steel stamping or other marking device that leaves a legible imprint. When marking on the blind portion of the blanks, low stress marking shall be used and shall not impinge on the gasket seating surface.


Dimensions Of Class 150 Blanks For Use With Raised Face Flanges


Dimensions Of Class 150 Blanks For Use With Raised Face Flanges

Dimensions Of Class 150 Female Ring-Joint Facing Figure-8 Blanks


Dimensions Of Class 150 Female Ring-Joint Facing Figure-8 Blanks

Dimensions Of Class 150 Male Ring-Joint Facing Figure-8 Blanks


Dimensions Of Class 150 Male Ring-Joint Facing Figure-8 Blanks

Blank Flange Vs. Blind Flange


Blank flange : are used to seal the end of a pipe line or fittings.

Blind flange : is basically a flange that does not have a hub or a bored center.


Spectacle Blind Flange Purpose

  • Spectacle Blinds are simple safety devices that are installed between two pipe flanges
  • open end is installed as a spacer to allow uninterrupted flow.
  • stop the flow in the pipeline, the blind end is rotated into place between the flanges