Blind Flanges Manufacturer

Katariya Steel Distributors is a supremely leading manufacturer, exporter and supplier of Blind Flanges. We manufacture our products with premium quality raw materials that are available in the market. Being one of India’s most reputable suppliers of Blind Flanges, we supply them at a competitive price range.

Blind Flanges are known to function similarly to a plug or a cap. It is used to terminate the end of a piping system. These Blind Flanges are basically a flange that does not have a hub or a boring centre. These Blind flanges have a face thickness of a flange, a matching face type and a similar bolting pattern. These Blind flanges allow easy entrance to the interior of a vessel or pipe, unlike a cap that is welded.

Blind Raised Face Flanges, Flat Face Blind Flanges, BLFF Flanges, Blind Flanges, Stainless Steel 8 Inch Blind Flange, RF Blind Flange, Blind Plate Flange, Carbon Steel 6 Inch Blind Flange, BLRF Flange, Blind Flanges Supplier, Blind Flanges Manufacturer in Mumbai, India.

These Blind Flanges are quite versatile and they can also be used to seal a nozzle opening on a pressure vessel. These flanges are mostly used for testing the flow of a certain gas or liquid through a pipe or a vessel. Blind flanges are popularly used for high-pressure applications. They are made in all steel material grades like stainless steel, carbon steel and alloy steel. We make sure that all our products go through a number of tests to ensure their quality, safety and durability. We verify all our products before supplying them to our prestigious customers.

Blind flanges can handle high-pressure applications, making them useful in a wide range of industries. Pipe engineering businesses, public services, waterworks, power generating industry, shipbuilding, piping systems, pharmaceutical industry, oil refineries, petrochemical industry, and many more industries use these flanges. These blind flanges have a variety of advantages and capabilities, making them quite handy. They can work in high-pressure and high-temperature environments without breaking down. Blind flanges of the highest quality are provided to our customers.

What are the features of rf blind flange?

An rf blind flange is a specialized type of pipe flange designed for piping systems and pressure vessels. They are made up of two pieces that clamp together tightly and can be used to keep pipes, valves, and other components separated while ensuring the pressure inside the system remains intact. One distinct feature of RF blind flanges is that they do not include a bore or center hole—making them ideal for full-closure applications such as plugging off an unused port or line. Additionally, RF blind flanges typically have raised faces on both sides, which offer extra support and sealing capabilities when matched to a companion flange and gasket of similar dimensions. Finally, these flanges are incredibly reliable due to their low cost and easy installation compared to other traditional flanges.

What are the uses of alloy steel 4 inch blind flanges?

Alloy steel 4 inch blind flanges are incredibly useful in various piping systems, providing durability and stability. From plumbing applications to automotive and aerospace industries, these flanges help connect two pipes or tubes without using extra space or materials. Since they come in multiple dimensions and pressure ratings, they can be used to support light-duty tasks and more demanding applications requiring corrosion resistance and high tensile strength. With their reliable sealing abilities, relatively low cost, and easy maintenance and installation methods, alloy steel 4 inch blind flanges have become an essential component for many industries. They are sure to remain a favorite for years to come.

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Specification For Blind Flanges

Dimensions ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
Size 1/2" (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.
DIN DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636,DIN2637, DIN2638, DIN2673
BS BS4504 , BS4504, BS1560, BS10
Flange Face Type Flate Face (FF), Raised Face (RF)

Blind Flange Price List

asme b16.5 class 300 blind flange
FOB Price: US $1-2100 / Ton

ansi class 150 4" blind flange
FOB Price: US $600-1500 / Ton

forged b16.5 150lbs blind flange
FOB Price: US $0.1-266 / Piece

rf/ff blind flange pn16
FOB Price: US $600-8000 / Ton

6 inch blind flanges
FOB Price: US $0.12-150 / Piece

8" blind flange
FOB Price: US $1000-2500 / Ton

asme b16.5 ss 316 blind flange
FOB Price: US $1-500 / Piece

bs4504 pn16 blind flange high quality
FOB Price: US $1100.00-1450.00 / Ton

Ready Stock Of Blind Flanges Supplier

  • Incoloy 800 Blind Flange
  • Stainless Steel Blind Flange
  • ANSI/ASME B16.5 Raised Face Blind Flanges
  • ASME B16.5 Blind Flanges
  • SS 304L Blind (BLRF) Flanges
  • Copper Nickel BLRTJ Flanges
  • ASTM A350 Low Temperature Steel Blind Flanges
  • Hastelloy C22 Blind Flanges
  • Alloy 825 Blind Flanges
  • Stainless Steel 304H Blind Flanges
  • Monel 400 Blind Flange
  • Titanium Grade 2 / 5 Blind Flanges
  • Inconel 601 Blind Flanges
  • SS Industrial Blind Plate Flange
  • Type of Monel K500 Blind Flanges
  • Alloy Steel Blind Flanges
  • Carbon Steel BLFF Flanges
  • Carbon Steel A105 Blind Flanges
  • Super Duplex Steel S32760 Blind Flanges
  • Stainless Steel 316TI Blind Flanges
  • 625 Inconel Blind Raised Face Flanges
  • Duplex Steel S32205 Blind Flanges

Blind Flange Dimensions - Class 150

Size
in Inch
Size
in mm
Outer
Dia.
Flange
Thick.
RF
Dia.
RF
Height
PCD No of
Bolts
Bolt Size
UNC
Machine Bolt
Length
RF Stud
Length
Hole Size ISO Stud
Size
Weight
in kg
A B C D E
1/2 15 90 9.6 34.9 2 60.3 4 1/2 50 55 5/8 M14 0.9
3/4 20 100 11.2 42.9 2 69.9 4 1/2 50 65 5/8 M14 0.9
1 25 110 12.7 50.8 2 79.4 4 1/2 55 65 5/8 M14 0.9
1 1/4 32 115 14.3 63.5 2 88.9 4 1/2 55 70 5/8 M14 1.4
1 1/2 40 125 15.9 73 2 98.4 4 1/2 65 70 5/8 M14 1.8
2 50 150 17.5 92.1 2 120.7 4 5/8 70 85 3/4 M16 2.3
2 1/2 65 180 20.7 104.8 2 139.7 4 5/8 75 90 3/4 M16 3.2
3 80 190 22.3 127 2 152.4 4 5/8 75 90 3/4 M16 4.1
3 1/2 90 215 22.3 139.7 2 177.8 8 5/8 75 90 3/4 M16 5.9
4 100 230 22.3 157.2 2 190.5 8 5/8 75 90 3/4 M16 7.7
5 125 255 22.3 185.7 2 215.9 8 3/4 85 95 7/8 M20 9.1
6 150 280 23.9 215.9 2 241.3 8 3/4 85 100 7/8 M20 11.8
8 200 345 27 269.9 2 298.5 8 3/4 90 110 7/8 M20 20.5
10 250 405 28.6 323.8 2 362 12 7/8 100 115 1 M24 32
12 300 485 30.2 381 2 431.8 12 7/8 100 120 1 M24 50
14 350 535 33.4 412.8 2 476.3 12 1 115 135 1 1/8 M27 64
16 400 595 35 469.9 2 539.8 16 1 115 135 1 1/8 M27 82
18 450 635 38.1 533.4 2 577.9 16 1 1/8 125 145 1 1/4 M30 100
20 500 700 41.3 584.2 2 635 20 1 1/8 140 160 1 1/4 M30 130
24 600 815 46.1 692.2 2 749.3 20 1 1/4 150 170 1 3/8 M33 196

Class 300 Blind Flange Dimensions

Size
in Inch
Size
in mm
Outer
Dia.
Flange
Thick.
RF
Dia.
RF
Height
PCD No of
Bolts
Bolt Size
UNC
Machine Bolt
Length
RF Stud
Length
Hole
Size
ISO Stud
Size
Weight
in kg
A B C D E
1/2 15 95 12.7 34.9 2 66.7 4 1/2 55 65 5/8 M14 1.4
3/4 20 115 14.3 42.9 2 82.6 4 5/8 65 75 3/4 M16 1.4
1 25 125 15.9 50.8 2 88.9 4 5/8 65 75 3/4 M16 1.4
1 1/4 32 135 17.5 63.5 2 98.4 4 5/8 70 85 3/4 M16 1.8
1 1/2 40 155 19.1 73 2 114.3 4 3/4 75 90 7/8 M20 2.7
2 50 165 20.7 92.1 2 127 8 5/8 75 90 3/4 M16 3.7
2 1/2 65 190 23.9 104.8 2 149.2 8 3/4 85 100 7/8 M20 5.5
3 80 210 27 127 2 168.3 8 3/4 90 110 7/8 M20 7.3
3 1/2 90 230 28.6 139.7 2 184.2 8 3/4 95 110 7/8 M20 9.6
4 100 255 30.2 157.2 2 200 8 3/4 95 115 7/8 M20 12.3
5 125 280 33.4 185.7 2 235 8 3/4 110 120 7/8 M20 15.9
6 150 320 35 215.9 2 269.9 12 3/4 110 120 7/8 M20 22.7
8 200 380 39.7 269.9 2 330.2 12 7/8 120 140 1 M24 36
10 250 445 46.1 323.8 2 387.4 16 1 140 160 1 1/8 M27 57
12 300 520 49.3 381 2 450.8 16 1 1/8 145 170 1 1/4 M30 84
14 350 585 52.4 412.8 2 514.4 20 1 1/8 160 180 1 1/4 M30 113
16 400 650 55.6 469.9 2 571.5 20 1 1/4 165 190 1 3/8 M33 134
18 450 710 58.8 533.4 2 628.6 24 1 1/4 170 195 1 3/8 M33 181
20 500 775 62 584.2 2 685.8 24 1 1/4 185 205 1 3/8 M33 230
24 600 915 68.3 692.2 2 812.8 24 1 1/2 205 230 1 5/8 M39 359

Class 400 Blind Flange Dimensions

Size
in Inch
Size
in mm
Outer
Dia.
Flange
Thick.
RF
Dia.
RF
Height
PCD No of
Bolts
Bolt Size
UNC
RF Stud
Length
Hole
Size
ISO Stud
Size
Weight
in kg
A B C D E
1/2 15 95 14.3 34.9 7 66.7 4 1/2 75 5/8 M14 1.5
3/4 20 115 15.9 42.9 7 82.6 4 5/8 90 3/4 M16 1.5
1 25 125 17.5 50.8 7 88.9 4 5/8 90 3/4 M16 1.8
1 1/4 32 135 20.7 63.5 7 98.4 4 5/8 95 3/4 M16 2.3
1 1/2 40 155 22.3 73 7 114.3 4 3/4 110 7/8 M20 3.7
2 50 165 25.4 92.1 7 127 8 5/8 110 3/4 M16 4.6
2 1/2 65 190 28.6 104.8 7 149.2 8 3/4 120 7/8 M20 6.8
3 80 210 31.8 127 7 168.3 8 3/4 125 7/8 M20 9.1
3 1/2 90 230 35 N/A 7 184.2 8 7/8 140 1 M24 13.2
4 100 255 35 157.2 7 200 8 7/8 140 1 M24 15
5 125 280 38.1 185.7 7 235 8 7/8 145 1 M24 20
6 150 320 41.3 215.9 7 269.9 12 7/8 150 1 M24 28
8 200 380 47.7 269.9 7 330 12 1 170 1 1/8 M27 46
10 250 445 54 323.8 7 387.4 16 1 1/8 190 1 1/4 M30 71
12 300 520 57.2 381 7 450.8 16 1 1/4 205 1 3/8 M33 102
14 350 585 60.4 412.8 7 514.4 20 1 1/4 210 1 3/8 M33 132
16 400 650 63.5 469.9 7 571.5 20 1 3/8 220 1 1/2 M36 168
18 450 710 66.7 533.4 7 628.6 24 1 3/8 230 1 1/2 M36 207
20 500 775 69.9 584.2 7 685.8 24 1 1/2 240 1 3/4 M39 266
24 600 915 76.2 692.2 7 812.8 24 1 3/4 265 1 7/8 M45 405

Class 600 Blind Flange Dimensions

Size in Inch Size in mm Outer Dia. Flange Thick. RF Dia. RF Height PCD No of Bolts Bolt Size UNC RF Stud Length Hole Size ISO Stud Size Weight in kg
A B C D E
1/2 15 95 14.3 34.9 7 66.7 4 1/2 75 5/8 M14 1.4
3/4 20 115 15.9 42.9 7 82.6 4 5/8 90 3/4 M16 1.4
1 25 125 17.5 50.8 7 88.9 4 5/8 90 3/4 M16 1.8
1 1/4 32 135 20.7 63.5 7 98.4 4 5/8 95 3/4 M16 2.3
1 1/2 40 155 22.3 73 7 114.3 4 3/4 110 7/8 M20 3.7
2 50 165 25.4 92.1 7 127 8 5/8 110 3/4 M16 4.6
2 1/2 65 190 28.6 104.8 7 149.2 8 3/4 120 7/8 M20 6.8
3 80 210 31.8 127 7 168.3 8 3/4 125 7/8 M20 9.1
3 1/2 90 230 35 N/A 7 184.2 8 7/8 140 1 M24 13.2
4 100 275 38.1 157.2 7 215.9 8 7/8 145 1 M24 18.7
5 125 330 44.5 185.7 7 266.7 8 1 165 1 1/8 M27 31
6 150 355 47.7 215.9 7 292.1 12 1 170 1 1/8 M27 39
8 200 420 55.6 269.9 7 349.2 12 1 1/8 190 1 1/4 M30 64
10 250 510 63.5 323.8 7 431.8 16 1 1/4 215 1 3/8 M33 105
12 300 560 66.7 381 7 489 20 1 1/4 220 1 3/8 M33 134
14 350 605 69.9 412.8 7 527 20 1 3/8 235 1 1/2 M36 161
16 400 685 76.2 469.9 7 603.2 20 1 1/2 255 1 5/8 M39 225
18 450 745 82.6 533.4 7 654 20 1 5/8 275 1 3/4 M42 286
20 500 815 88.9 584.2 7 723.9 24 1 5/8 285 1 3/4 M42 368
24 600 940 101.6 692.2 7 838.2 24 1 7/8 330 2 M48 568

Class 900 Blind Flange Dimensions

Size in Inch Size in mm Outer Dia. Flange Thick. RF Dia. RF Height PCD No of Bolts Bolt Size UNC RF Stud Length Hole Size ISO Stud Size Weight in kg
A B C D E
1/2 15 120 22.3 34.9 7 82.6 4 3/4 110 7/8 M20 1.8
3/4 20 130 25.4 42.9 7 88.9 4 3/4 115 7/8 M20 2.7
1 25 150 28.6 50.8 7 101.6 4 7/8 125 1 M24 3.6
1 1/4 32 160 28.6 63.5 7 111.1 4 7/8 125 1 M24 4.1
1 1/2 40 180 31.8 73 7 123.8 4 1 140 1 1/8 M27 5.9
2 50 215 38.1 92.1 7 165.1 8 7/8 145 1 M24 10.1
2 1/2 65 245 41.3 104.8 7 190.5 8 1 160 1 1/8 M27 16
3 80 240 38.1 127 7 190.5 8 7/8 145 1 M24 13
4 100 290 44.5 157.2 7 235 8 1 1/8 170 1 1/4 M30 24.5
5 125 350 50.8 185.7 7 279.4 8 1 1/4 190 1 3/8 M33 39.5
6 150 380 55.6 215.9 7 317.5 12 1 1/8 190 1 1/4 M30 53
8 200 470 63.5 269.9 7 393.7 12 1 3/8 220 1 1/2 M36 91
10 250 545 69.9 323.8 7 469.9 16 1 3/8 235 1 1/2 M36 132
12 300 610 79.4 381 7 533.4 20 1 3/8 255 1 1/2 M36 189
14 350 640 85.8 412.8 7 558.8 20 1 1/2 275 1 5/8 M39 237
16 400 705 88.9 469.9 7 616 20 1 5/8 285 1 3/4 M42 273
18 450 785 101.6 533.4 7 685.8 20 1 7/8 325 2 M48 367
20 500 855 108 584.2 7 749.3 20 2 350 2 1/8 M52 463
24 600 1040 139.7 692.2 7 901.7 20 2 1/2 440 2 5/8 M64 875

Class 1500 Blind Flange Dimensions

Size in Inch Size in mm Outer Dia. Flange Thick. RF Dia. RF Height PCD No of Bolts Bolt Size UNC RF Stud Length Hole Size ISO Stud Size Weight in kg
A B C D E
1/2 15 120 22.3 34.9 7 82.6 4 3/4 110 7/8 M20 1.8
3/4 20 130 25.4 42.9 7 88.9 4 3/4 115 7/8 M20 2.7
1 25 150 28.6 50.8 7 101.6 4 7/8 125 1 M24 3.7
1 1/4 32 160 28.6 63.5 7 111.1 4 7/8 125 1 M24 4.1
1 1/2 40 180 31.8 73 7 123.8 4 1 140 1 1/8 M27 5.9
2 50 215 38.1 92.1 7 165.1 8 7/8 145 1 M24 10.1
2 1/2 65 245 41.3 104.8 7 190.5 8 1 160 1 1/8 M27 15.9
3 80 265 47.7 127 7 203.2 8 1 1/8 180 1 1/4 M30 21.8
4 100 310 54 157.2 7 241.3 8 1 1/4 195 1 3/8 M33 33
5 125 375 73.1 185.7 7 292.1 8 1 1/2 250 1 5/8 M39 64
6 150 395 82.6 215.9 7 317.5 12 1 3/8 260 1 1/2 M36 75
8 200 485 92.1 269.9 7 393.7 12 1 5/8 290 1 3/4 M42 136
10 250 585 108 323.8 7 482.6 12 1 7/8 335 2 M48 232
12 300 675 123.9 381 7 571.5 16 2 375 2 1/8 M52 314
14 350 750 133.4 412.8 7 635 16 2 1/4 405 2 3/8 M56 443
16 400 825 146.1 469.9 7 704.8 16 2 1/2 445 2 5/8 M64 591
18 450 915 162 533.4 7 774.7 16 2 3/4 495 2 7/8 M72 795
20 500 985 177.8 584.2 7 831.8 16 3 540 3 1/8 M76 1022
24 600 1170 203.2 692.2 7 990.6 16 3 1/2 615 3 5/8 M90 1648

Blind Flange Applications and Uses

Aerospace Industry

Oil & Gas Industry

Petrochemical Industry

Construction Industry

Mining Industry

Domestic Supply of Blind Flange

  • Thane
  • Pune
  • Indore
  • Chennai
  • Nagpur
  • Ludhiana
  • Ranchi
  • Rajkot
  • Hyderabad
  • Kolkata
  • Jaipur
  • Haryana
  • Secunderabad
  • Surat
  • Howrah
  • Gurgaon
  • New Delhi
  • Noida
  • Faridabad
  • Navi Mumbai
  • Jamshedpur
  • Ahmedabad
  • mumbai
  • Ernakulam
  • Kanpur
  • Bhopal
  • Chandigarh
  • Bengaluru
  • Visakhapatnam
  • Thiruvananthapuram
  • Pimpri-Chinchwad
  • Nashik

International Supply of Blind Flange

  • India India
  • Japan Japan
  • Russia Russia
  • United States United States
  • Saudi Arabia Saudi Arabia
  • Kuwait Kuwait
  • Singapore Singapore
  • Malaysia Malaysia
  • Germany Germany
  • Italy Italy
  • China China
  • UK UK
  • Canada Canada
  • Iran Iran
  • Thailand Thailand
  • South Korea South Korea
  • Turkey Turkey
  • Morocco Morocco
  • Costa Rica Costa Rica
  • Kazakhstan Kazakhstan
  • Philippines Philippines
  • Egypt Egypt
  • Vietnam Vietnam
  • Oman Oman
  • Australia Australia
  • Qatar Qatar
  • Portugal Portugal
  • Mexico Mexico
  • Brazil Brazil
  • France France
  • South Africa South Africa
  • Jordan Jordan
  • Spain Spain
  • Hong Kong Hong Kong
  • Netherlands Netherlands
  • Indonesia Indonesia
  • Taiwan Taiwan
  • Nigeria Nigeria
  • Bangladesh Bangladesh
  • Iraq Iraq
  • Ukraine Ukraine
  • Poland Poland
  • Romania Romania
  • Cyprus Cyprus
  • Angola Angola
  • Colombia Colombia
  • Norway Norway
  • Chile Chile
  • Tobago Tobago
  • Greece Greece
  • Czechia Czechia
  • Belgium Belgium
  • Sri Lanka Sri Lanka
  • Myanmar Myanmar
  • Venezuela Venezuela

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Steel Works

Expert & Professional
Workers

Very Reasonable
Price