Spectacle Blind Flange

Spectacle Blind Flange

Spectacle Blind Flange at a Glance

  • Specification : ASME B16.48
  • Class : 150 LBS to 2500 LBS
  • Face Type : Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
  • MTC : EN 10204 3.1 & 3.2
  • Schedule : SCH 10 / 10S to SCH 160
  • Sealing Face Finish : Ra 3.2µm-6.3µm


ASME B16.48 Spectacle Blind Flange Manufacturer in India

Spectacle Blind Flanges

Spectacle Blind Flanges

Slip Blind Flange

Slip Blind Flange

Paddle Blind Flanges

Paddle Blind Flanges

Table Of Content


Spectacle Blind Flanges Specification
Sizes

Spectacle Blind Flanges Sizes

  • 1/2" to 48"
  • 15 NB - 1200NB








Pressure Class

Spade Blinds Pressure Class

  • CL 150
  • CL 2500
  • CL 300
  • CL 1500
  • CL 400
  • CL 900
  • CL 600



Manufacturing Technique

Manufacturing Technique of Spectacle Blinds

  • Casting
  • Forged Spectacle Flange (Strongest Choice)
  • Plate
  • CNC Machined Spectacle Blind From Bar Stock
Packaging and Marking

Packaging and Marking of Spectacle Flange

  • Bore (if Applicable)
  • Pressure Rating Designation
  • Material Specification
  • Sizes
  • Heat Code
Test

PN16 Spectacle Blind Flange Testd

  • Magnetic Particle Detector
  • Direct-reading Spectrograph
  • X-ray Detector
  • UI Trasonic Flaw Detector
  • Hydrostatic Testing Machine
Coating

Paddle Blind Flanges Coating

  • Anti-rust Paint
  • Oil Black Paint
  • Zinc Plated
  • Cold and Hot Dip Galvanized
  • Yellow Transparent



Test Certificates

Test Certificates of Spade Blind Flange

  • EN 10204/3.1B
  • Raw Materials Certificate
  • Third Party Inspection Report
  • 100% Radiography Test Report
Production Technique

Production Technique Vented Blind Flange

  • Heat treated
  • Forged
  • Machined





Face Type

Face Type for Paddle Blind Flanges

  • Lap-Joint Face
  • Small Tongue
  • Flat Face
  • Male/Female Face
  • Raised face
  • Ring-Joint Face
  • Tongue and Groove Face
Material

Spade Blinds Material

  • Nickel Alloy Steel
  • Copper Nickel Steel
  • Stainless Steel
  • Copper Steel
  • Carbon Steel
  • Titanium Steel
  • Alloy Steel
  • Ductile Iron Steel
  • Duplex / Super Duplex Steel
Testing Requirements

Testing Requirements for Spectacle Blinds

  • MTC EN 10204 type 3.1
  • Tensile Test
  • NACE MR0175
  • Hardness Test
  • Impact Test
  • ISO 15156
  • Shell Pressure Test
Applications

Applications of Paddle Blind Flanges

  • Offshore
  • Petroleum Plants
  • Petrochemical
  • Seawater
  • Marine Applications



Other Dimensional Standards

Other Dimensional Standards of Spec Blind

  • JIS
  • AWWA
  • AS2129
  • SABS
  • GOST
  • UNI
  • EN
Sealing Face Finish

Sealing Face Finish of PN16 Spectacle Blind Flange

  • Ra 3.2µm-6.3µm
  • Spiral Finish





JIS

JIS of Spectacle Flange

  • 5 K
  • 10 K
  • 16 K
  • 20 K
  • 30 K
  • 40 K
  • 63 K


Origin

Origin of Paddle Blind Flanges

  • West Europe
  • Korean
  • Japan
  • USA
  • Indian



Equipment

Equipment of Spade Blind Flange

  • Sand-blasting Machine
  • Bending Machine
  • Pushing Machine
  • Electric Bevelling Machine
  • Press Machine
Surface Finish

Slip Blind Flange Surface Finish

  • Convex Surface
  • Grooved Surface
  • Ring Joint Surface
  • Flat Surface



Aesteiron Recent Export Orders

switzerland
Supplied Stock Of Spectacle Blind Flanges to Switzerland

Supplied Stock Of Spectacle Blind Flanges to Switzerland

uae
Exported Paddle Blind Flanges to UAE

Exported Paddle Blind Flanges to UAE

For Delivery to Your Location, Click Here.


Manufacturer of Stainless Steel Spec Blind Flange, check Figure 8 Blind Flange Dimensions

Class 150 Dimensions

Dimensions of Spectacle Blind Flange

NPS Web Width of W OD of A Thick of T Center Line of C Inner Dia of B
5 76 194 9.7 215 141
24 140 714 31.8 750 610
1/2 38 45 3 60 16
20 121 603 28.4 635 508
3/4 38 54 3 70 21
18 114 546 25.4 580 457
1 38 64 3 80 27
4 64 172 9.7 190 114
16 108 511 22.4 460 406
1.1/4 38 73 6.4 90 42
3.1/2 64 159 9.7 175 102
14 108 448 19.1 475 356
3 64 133 6.4 150 89
1.1/2 38 83 6.4 100 48
6 76 219 12.7 240 168
12 102 406 19.1 430 324
2 51 102 6.4 120 61
10 102 337 15.7 360 273
2.1/2 51 107 6.4 140 73
8 76 276 12.7 300 219

Find ISO 6164 Square Flange their Advantages

Advantages of Using Spectacle Flange

  • Safety
  • Cost-Effectiveness
  • Versatility
  • Ease of Use
  • Improved Performance
  • Durability

Carbon Steel Spectacle Blind Flange for Pressure Vessels and Petrochemical Plants
Applications of Spectacle Blind Flange

Manufacturer of ASME B16.48 Spectacle Blind Flange in India, Choose the Right Grade and Temperature Ratings

Temperature Range

Alloy Gr. WNR UNS DIN Casting Spectacle Blind Flange Forged Spectacle Blind Flange Temp Range
Alloy Steel Spectacle Blind Flange AISI 4130 Spectacle Blind Flanges 1.7218 G41300 – ASTM A217/M ASTM A182
  • 1650 to 1700°F
  • 899 to 927°C
Alloy Steel Chrome Moly Spectacle Blind Flange 9Cr-1Mo-V 1.4903 X 10 CrMoVNb 9 1 A217-C12A A182 Grade F91
  • High pressure boilers
1.1/4Cr-1/2Mo 1.7335 K11572 13CRM044 ASTM A217 WC6 ASTM A182 Grade F11 cl2
  • 1100ºF
  • Up to 593ºC
5Cr-1/2Mo 1.7362 K41545 12CRMO195 ASTM A217 Gr C5 ASTM A182 Gr F5/F5a
  • High temp boiler/ refinery application
2.1/4Cr-1Mo 1.7380 K21590 10CRM0910 ASTM A217 Gr WC9 ASTM A182 Gr F22 cl3
  • 1100ºF
  • Up to 593ºC
9Cr-1Mo 1.7386 K90941 X 12 CrMo 9 1 A217-C12 A182 Grade F9
  • High temp erosive refinery application
Moly Steel Spectacle Blind Flange C-1/2Mo 1.5415 K12822 15M03 ASTM A217-WC1 ASTM A182 Grade F1 cl2
  • 875ºF
  • Up to 470ºC*

Raised Face Spectacle Blind (RF) Height
Raised Face Spectacle Blind Class Height
600 LB 1/4″
2500 LB 1/4″
150 LB 1/6″
1500 LB 1/4″
300 LB 1/6″
900 LB 1/4″
400 LB 1/4″

Weight Chart of Spectacle Blind Flange
NPS in (Inches) CLASS 300 CLASS 2500 CLASS 150 CLASS 900 CLASS 600 CLASS 1500
5 7.93 34.01 4.34 18.15 15.34 23.62
4 4.73 20.45 3.52 11.45 9.00 13.58
3-1/2 3.93 – 3.00 – 6.46 –
24 269.41 – 139.19 619.04 447.64 936.93
1/2 0.25 0.72 0.12 0.46 0.38 0.46
20 170.85 – 90.98 361.74 299.91 569.25
3/4 0.38 0.89 0.17 0.61 0.57 0.79
18 133.67 – 68.18 278.80 210.36 457.52
1 0.46 1.19 0.23 0.80 0.73 1.05
16 102.25 – 55.11 208.72 171.78 339.62
1-1/4 0.56 2.14 0.49 1.37 1.24 1.40
14 71.30 – 36.80 156.56 116.37 245.28
1-1/2 0.76 3.17 0.63 1.73 1.65 2.08
12 47.11 268.26 30.31 130.89 94.88 182.62
2 1.46 4.90 0.96 3.98 2.33 4.04
10 31.63 171.27 17.59 88.31 64.41 108.77
2-1/2 1.98 7.50 1.07 5.21 3.61 6.21
8 21.16 94.12 10.19 53.48 35.75 60.13
3 2.61 11.81 1.59 6.68 4.87 8.47
6 10.56 49.98 6.66 27.04 21.06 34.45

Spade Blind Thickness
Nominal Pipe Size in (Inches) Thickness Outside Dia
3 1/2 3/8 6 1/4
12 3/4 16
5 3/8 7 5/8
24 1 1/4 28 1/8
4 3/8 6 3/4
1/2 5/16 1 3/4
3 5/16 5 1/4
22 1 1/4 25 7/8
3/4 5/16 2 1/8
20 1 1/8 23 3/4
1 5/16 2 1/2
18 1 21 1/2
1 1/4 5/16 2 7/8
16 7/8 20 1/8
6 1/2 8 5/8
1 1/2 5/16 3 1/4
14 3/4 17 5/8
2 5/16 4
10 5/8 13 1/4
2 1/2 5/16 4 3/4
8 1/2 10 7/8

Face Types of ASME B16.48 Spectacle Blind Flange
Face Types of Spectacle Blind Flange

Spectacle Blind HSN Code
Grade HSN Code
Spectacle Blind Flanges 73079190

Grooved Spectacle Blind Flange Weight Chart
Nominal Pipe Size
(Inches)		 DN
(MM)		 Flange Thick D
(MM)		 Flange Outer Dia
A (MM)		 Blind Flange Weight (Kgs) Weld Neck Flange Weight (Kgs) Slip on Flange Weight (Kgs)
4 100 23.9 228.6 7.0 6.8 5.3
24 600 47.8 812.8 185.0 115 86.9
6 150 25.4 279.4 11.3 10.6 7.5
1/ 2 15 11.2 88.9 0.4 0.5 0.4
3 80 23.9 190.5 4.9 4.9 3.9
20 500 42.9 698.5 122.0 84.5 61.9
3/ 4 20 12.7 98.6 0.6 0.7 0.6
18 450 39.6 635 93.7 68.3 48.9
1 25 14.2 108 0.9 1 0.8
16 400 36.6 596.9 76.1 60.6 44.8
3 1/ 2 90 23.9 215.9 6.2 6.1 4.8
1 1/ 4 32 15.7 117.3 1.2 1.3 1
14 350 35.1 533.4 58.1 48.4 34.6
5 125 23.9 254 8.6 8.6 6.1
1 1/ 2 40 17.5 127 1.5 1.7 1.3
12 300 31.8 482.6 43.2 36.5 26.2
2 50 19.1 152.4 2.4 2.6 2.1
10 250 30.2 406.4 28.6 24 16.5
2 1/ 2 65 22.4 177.8 3.9 4.1 3.3
8 200 28.4 342.9 19.6 17.6 12.1

Size Chart of Paddle Blind Flange
Hole Dia
Size in (INCHES) Size in (MM) CL 600 CL 1500 CL 150 CL 2500 CL 300 CL 900
8 200 31.75 44.45 22.225 53.975 25.4 38.1
24 600 50.8 92.075 34.925  – 41.275 66.675
5 125 28.575 41.275 22.225 47.625 22.225 34.925
1/2 15 15.875 22.225 15.875 22.225 15.875 22.225
4 100 25.4 34.925 19.05 41.275 22.225 31.75
20 500 44.45 79.375 31.75  – 34.925 53.975
3/4 20 19.05 22.225 15.875 22.225 19.05 22.225
18 450 44.45 73.025 31.75  – 34.925 50.8
1 25 19.05 25.4 15.875 25.4 19.05 25.4
16 400 41.275 66.675 28.575  – 34.925 44.45
6 150 28.575 38.1 22.225 53.975 22.225 31.75
1 1/4 32 19.05 25.4 15.875 28.575 19.05 25.4
14 350 38.1 60.325 28.575  – 31.75 41.275
3 80 22.225 31.75 19.05 34.925 22.225 25.4
1 1/2 40 22.225 28.575 15.875 31.75 22.225 28.575
12 300 34.925 53.975 25.4 73.025 31.75 38.1
3 1/2 90 25.4  – 19.05 – 22.225  –
2 50 19.05 25.4 19.05 28.575 19.05 25.4
10 250 34.925 50.8 25.4 66.675 28.575 38.1
2 1/2 65 22.225 28.575 19.05 31.75 22.225 28.575

Spectacle Blind Flange Isometric Symbol
Isometric Symbol of Spectacle Blind Flange

Supporting Material of Stainless Steel Spectacle Blind Flange
  • Flanges
  • Stud Bolts
  • Gaskets

Carbon Steel Spectacle Flange Gaskets
  • Semi-metallic Gaskets
  • Flat Face Gaskets
  • Ring Joint Gaskets

Flanges

Other Products

Why Aesteiron?

  • Distributor of USA, Japan and European Mills for Seamless Pipes and Steel Plates
  • Only Indian Company who has Weekly 3 Shipment to Saudi Arabia, Netherlands and USA
  • Vast experience as an Exporter of Industrial Long and Flat Products in India
  • Keep Ex-Stock of Nickel Alloys Make Special Metals, USA
  • Supply Europe, USA, Japan and Korea Origin Material
  • Local Distributor in Houston (USA)
  • 350+ Clients in Atlanta, California, Wisconsin, Texas, Kansas, Indiana, Florida
  • Get Price, availability, and shipping information Via WhatsApp and Email in Maximum 2 Hrs
  • DFARS compliant Pipe, Fittings and Sheets for oil and gas companies
  • Weekly Delivery in Tanzania, Sharjah, Dubai, Qatar and Cape Town
  • Special Price for Steel Suppliers, Wholesalers, Importer, Stockholder, Traders and Stockist in USA
  • Known for Best quality of Steel Fittings, Flanges and Pipes
  • Offer MTC 3.1/3.2 and Third Party Inspection at Lowest Price
  • Specialized in supplying Large Diameter Steel Pipes with wear-resistant coating
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Project Reference

Project Refrence

Tools & Downloads

Conclusion

Different Types, Faces, and Pressure Ratings of Spectacle Blind Flange Are Available. Utilized Mostly in the Oil and Gas and Petrochemical Industries.

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