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BLRF Flange / Blind Flange

Blind Flanges Suppliers in India

ANSI/ASME B16.5/B16.47 Blind Flanges
BLRF Flanges Manufacturers in Mumbai India

We offer Comprehensive Range of Blind Flanges in SS 304/304L, SS 316/316L as per the international quality standards – ANSI B16.5, ANSI B16.47, ANSI B16.36, ANSI B16.48, BS 4504, EN1092, UNI 2277/2278, DIN, JIS, SABS1123, GOST-12820 in Class – 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS.

We are Most Reliable and PED Certified Stockists, Manufacturers, and Exporters of ASME B16.47/ANSI B16.5 BLRF Flange, MSS SP-44 Blind Flange, DIN86029 PN10 Blind Flange, Series A & B Blind Flange.

Table Of Content

SPECIALIST AND INDIA’S LARGEST MANUFACTURING FIRM OF HIGH QUALITY ANSI B16.5 / ASME B16.47 BLIND FLANGE IN STAINLESS STEEL(SS), CARBON STEEL(CS), ALLOY STEEL(AS), HASTELLOY, MONEL, INCONEL, TITANIUN, DUPLEX STEEL, NICKEL ALLOY, SUPER DUPLEX STEEL, INCOLOY, ALLOY 20, 254 SMO, COPPER NICKEL, ALUMINIUM, BRONZE, MILD STEEL(MS), BRASS, ETC.
Industries We Served Happily

We keep huge preminum quality product stock of Class 150 Blind Flat Faced Flange, Raised Face Blind Flange, Blind Forged Flange, Blind Plate Flange, Class 300, 600, 900, 1500 Blind Flange. Get here at Market Leading Prices in Mumbai, India.

Blind Flanges Specifications

Type Blind Flange
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.
Dimensions ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
Standard ANSI B16.5, ANSI B16.47, ANSI B16.36, ANSI B16.48, BS 4504, EN1092, UNI 2277/2278, DIN, JIS, SABS1123, GOST-12820
BS BS4504 , BS4504, BS1560, BS10
DIN DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636,DIN2637, DIN2638, DIN2673
Coating / Surface Treatment Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized
In Form SORF, WNRF, BLRF, SWRF, LAP Joint, Threaded, Reducing, Spectacle, etc
Flange Face Type Flat Face (FF), Raise Face (RF), Ring Joint (RJT)
Connection Type Ring Type Joint, Lap-Joint Face, Raised Face, Flat Face, Large Male-Female, Small Male-Female, Large Tongue & Groove, Small Tongue & Groove
Usage Oil Field, Offshore, Water System, Shipbuilding, Natural Gas, Electric Power, Pipe Projects etc.
Packing No Fumigate or Fumigate Plywood/Wood Pallet or Case

We are one of the renowned Suppliers, Manufacturers of a good range of Blind Flanges. Our company is considered one among the reliable exporters of a large amount of ASME B16.5 Blind Flange. This Blind Flange include grades like 304, 304L, 304H, 316, 316L, 316H. The whole range of Blind Flanges are being manufactured by making use of the best grade staple that is procured form reliable vendor base of the industry. We’ve employed a team of highly experienced and professional procurement agents. They ensure to source this Blind Flange from the simplest manufacturer of the industry. They’re known to form use of the foremost latest and complicated machinery and equipment to fabricate these products. We provide a variety of blinds flanges that are precision-engineered using the highest quality staple. Our range is in compliance with set industrial standards and known for accurate size and sturdiness. Further, our blind flanges are available in several specifications to suit the numerous requirements of our clients. We provide these SS Blind Flange at affordable prices as per standard norms.

A Blind flange is round plate which has all the relevant boltholes but no center hole, and since of this feature this flange is employed to shut off the ends of a piping systems. It also permits quick access to the inside of a line or vessel once it’s been sealed and must be reopened. The difference is that a blind flange has no opening for fluids to undergo . Instead, it’s placed in between two open flanges, which stops the flow through a pipe. Repeatedly this sort of blockade is used when adding another line onto an existing pipeline or when a replacement valve is being added.

Blind flanges are commonly utilized in petrochemical, pipe engineering, public services and water works. A blind flange is beneficial for creating repairs to a pipeline further up the road. In fact, during construction of a pipeline, a blind flange could also be built into the ultimate length of pipe. This enables for expansion or continuation of the pipeline just by adding onto the flange.

Without a blind flange, it might be next to impossible to repair to perform ongoing maintenance to a pipeline unless the flow was shut off at an earlier valve, which could affect miles of pipeline. The utilization of Blind Flanged pipe has significantly sped up the method for constructing pipelines. It’s also made the task of repair and sectional replacement easier. Sections of pipe can now be assembled anywhere within the world and shipped to the work site. Once there, they will simply be bolted in place, and therefore, the repair is completed.

Check Blind Flange Dimentions Table:

ASME B16.5 Blind Flanges Dimensions

ANSI B16.47 Stainless Steel Blind Flanges Manufacturing Standards

ASME Standard ANSI B16.5, ANSI B16.47, ANSI B16.36, ANSI B16.48, BS 4504, UNI 2277/2278,, JIS, SABS1123, GOST-12820
DIN Standard DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636,DIN2637, DIN2638, DIN2673
EN Standard EN1092
ASTM A182 – ASME SA182 Standard Specification for Wrought Austenitic SS Pipe Flanges
MSS SP-44 Blind Flange

Blind Flanges Materials and Grades

Stainless Steel Blind Flange
ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H,904L
Carbon Steel Blind Flange
ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52
Low Temperature Blind Flange
ASTM A350 LF2, LF3, LF6
Alloy Steel Blind Flange
ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91
Duplex & Super Duplex Steel Blind Flange
ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61
Nickel Alloy Blind Flange
UNS 10276 (HASTELLOY C 276), UNS 6625 (INCONEL 625), UNS 6601 (INCONEL 601), UNS 6600 (INCONEL 600), UNS 8825 (INCONEL 825), UNS 8020 (ALLOY 20 / 20 CB 3), UNS 4400 (MONEL 400), UNS 2201 (NICKEL 201), ASTM / ASME SB 336 UNS 2200 (NICKEL 200)
High Yield Blind Flanges
ASTM A694 F42, F52, F60, F65, F70

ANSI B16.5 Blind Flange Weight

ASME/ANSI B16.5 150lb Blind Flange Weight
Pipe Normal Diam. O.D. Flange Thk. Of Flange Min Diameter of Raised Face Diam.of BoltCircle Diam.of BoltHoles Numberof Bolts Diam. ofBolts(inch) KG LB
inch dn O C G BC BH BN BD
1/2″ 15 89.00 11.20 35.10 60.50 15.80 4 1/2″ 0.5 1.1
3/4″ 20 98.50 12.70 42.90 69.90 15.80 4 1/2″ 0.8 1.8
1″ 25 108.00 14.20 50.80 79.30 15.80 4 1/2″ 0.9 2
1-1/4″ 32 117.50 15.70 63.50 88.90 15.80 4 1/2″ 1.3 2.9
1-1/2″ 40 127.00 17.50 73.20 98.60 15.80 4 1/2″ 1.6 3.5
2″ 50 152.50 19.10 91.90 120.70 19.10 4 5/8″ 2.6 5.7
2-1/2″ 65 178.00 22.40 104.60 139.70 19.10 4 5/8″ 4.1 9
3″ 80 190.50 23.90 127.00 152.40 19.10 4 5/8″ 5..1 11.2
3-1/2″ 90 216.00 23.90 139.70 177.80 19.10 8 5/8″ 6.5 14.3
4″ 100 228.50 23.90 157.20 190.50 19.10 8 5/8″ 7.5 16.5
5″ 125 254.00 23.90 185.70 215.90 22.40 8 3/4″ 9.2 20.3
6″ 150 279.50 25.40 215.90 241.30 22.40 8 3/4″ 11.8 26
8″ 200 343.00 28.40 269.70 298.50 22.40 8 3/4″ 20.4 45
10″ 250 406.50 30.20 323.90 362.00 25.40 12 7/8″ 31 68
12″ 300 482.50 31.80 381.00 431.80 25.40 12 7/8″ 47 103
14″ 350 533.50 35.10 412.80 476.30 28.50 12 1″ 60 132
16″ 400 597.00 36.60 469.90 539.80 28.50 16 1″ 81 178
18″ 450 635.00 39.60 533.40 577.90 31.80 16 1 1/8″ 93 205
20″ 500 698.50 42.90 584.20 635.00 31.80 20 1 1/8″ 127 280
24″ 600 813.00 47.80 692.20 749.30 35.10 20 1 1/4″ 190 419
ASME/ANSI B16.5 300lb Blind Flange Weight
Pipe Normal Diam. Approx. Weight O.D. Flange Thk. Of Flange Min Diameter of Raised Face Diam.of BoltCircle Diam.of BoltHoles Numberof Bolts Diam. ofBolts(inch)
inch dn KG/PCS LB/PCS O C G BC BH BN BD
1″ 25 1.5 3.3 124. 0 17.5 50.8 88.9 19.1 4 5/8″
1-1/4″ 32 2 4.4 133. 5 19.1 63.5 98.6 19.1 4 5/8″
1-1/2″ 40 2.9 6.4 155. 5 20.6 73.2 114.3 22.4 4 5/8″
2″ 50 3.5 7.7 165. 0 22.4 91.9 127 19.1 8 5/8″
2-1/2″ 65 5.3 11.7 190. 5 25.4 104.6 149.4 22.4 8 3/4″
1/2″ 15 0.8 1.8 95.5 14.2 35.1 66.5 15.7 4 1/2″
14″ 350 108 238 584. 0 53.8 412.8 514..4 31.8 20 1 1/8″
16″ 400 139 306 647. 5 57.2 469.9 571.5 35.1 20 1 1/4″
18″ 450 178 392 711. 0 60.5 533.4 628.7 35.1 24 1 1/4″
3/4″ 20 1.2 2.6 117. 5 15.7 42.9 82.6 19.1 4 5/8″
3″ 80 7.2 15.9 209. 5 28.4 127 168.1 22.4 8 3/4″
3-1/2″ 90 9.2 20.3 228. 5 30.2 139.7 184.2 22.4 8 3/4″
4″ 100 12.2 26.8 254. 0 31.8 157.2 200.2 22.4 8 3/4″
5″ 125 16 35.2 279. 5 35.1 185.7 235 22.4 8 3/4″
6″ 150 22 48.4 317. 5 36.6 215.9 269.7 22.4 12 3/4″
8″ 200 36 79.5 381. 0 41.1 269.7 330.2 25.4 12 7/8″
10″ 250 55 121 444. 5 47.8 323.9 387.4 28.4 16 1″
12″ 300 82.5 182 520. 5 50.8 381 450.9 31.8 16 1 1/8″
20″ 500 228 503 774. 5 63.5 584.2 685.8 35.1 24 1 1/4″
24″ 600 350 772 914. 5 69.9 692.2 812.8 41.1 24 1 1/2″
ASME/ANSI B16.5 600lb Blind Flange Weight
Pipe Normal Diam. O.D. Flange Thk. Of Flange Min Diameter of Raised Face Diam.of BoltCircle Diam.of BoltHoles Numberof Bolts Diam. ofBolts(inch) Approx. Weight
inch dn O C G BC BH BN BD KG/PCS LB/PCS
1″ 25 124. 0 17.5 50.8 88.9 19.1 4 5/8″ 1.7 3.7
1-1/4″ 32 133. 5 20.6 63.5 98.6 19.1 4 5/8″ 2.4 5.3
1-1/2″ 40 155. 5 22.4 73.2 114.3 22.4 4 3/4″ 3.4 7.5
2″ 50 165. 0 25.4 91.9 127 19.1 8 5/8″ 4.4 9.7
2-1/2″ 65 190. 5 28.4 104.6 149.4 22.4 8 3/4″ 6.8 15
3″ 80 209. 5 31.8 127 168.1 22.4 8 3/4″ 8.9 19.7
3-1/2″ 90 228. 5 35.1 139.7 184.2 25.4 8 7/8″ 12.7 28
4″ 100 273. 0 38.1 157.2 215.9 25.4 8 7/8″ 18.6 41
1/2″ 15 95.5 14.2 35.1 66.5 15.7 4 1/2″ 0.8 1.8
3/4″ 20 117. 5 15.7 42.9 82.6 19.1 4 5/8″ 1.4 3.1
14″ 350 603. 5 69.9 412.8 527.1 38.1 20 1 3/8″ 158 348
16″ 400 686. 0 76.2 469.9 603.3 41.1 20 1 1/2″ 225 496
18″ 450 743. 0 82.6 533.4 654.1 44.5 20 1 5/8″ 285 628
20″ 500 813. 0 88.9 584.2 723.9 44.5 24 1 5/8″ 365 805
24″ 600 940. 0 101.6 692.2 838.2 50.8 24 1 7/8″ 532 1170
5″ 125 330. 0 44.5 185.7 266.7 28.4 8 1″ 30.8 68
6″ 150 355. 5 47.8 215.9 292.1 28.4 12 1″ 38 83.6
8″ 200 419. 0 55.6 269.7 349.3 31.8 12 1 1/8″ 62.2 137
10″ 250 508. 0 63.5 323.9 431.8 35.1 16 1 1/4″ 102 225
12″ 300 559. 0 66.5 381 489 35.1 20 1 1/4″ 132 291
ASME/ANSI B16.5 1500lb Blind Flange Weight
Pipe Normal Diam. O.D. Flange Thk. Of Flange Min Diam.ofHub Diam.of BoltCircle Diam.of BoltHoles Numberof Bolts Diam. ofBolts(inch) Approx. Weight
inch dn O C X BC BH BN BD KG/PCS LB/PCS
1″ 25 149.4 28.4 52.3 101.6 25.4 4 7/8″ 3.7 8.1
1-1/4″ 32 158.8 28.4 63.5 111.3 25.4 4 7/8″ 4.3 9.5
1-1/2″ 40 177.8 31.8 69.9 124 28.4 4 1″ 5.9 13
2″ 50 215.9 38.1 104.6 165.1 25.4 8 7/8″ 11.3 24.9
1/2″ 15 120.7 22.4 38.1 82.6 22.4 4 3/4″ 1.9 4.2
3/4″ 20 130 25.4 44.5 88.9 22.4 4 3/4″ 2.7 6
2-1/2″ 65 244.3 41.1 124 190.5 28.4 8 1″ 16 35.2
3″ 80 266.7 47.8 133.4 190.5 25.4 8 7/8″ 19.5 43
8″ 200 482.6 91.9 292.1 393.7 38.1 12 1 3/8″ 125 275
10″ 250 584.2 108 368.3 469.9 38.1 16 1 3/8″ 215 474
12″ 300 673.1 124 450.9 533.4 38.1 20 1 3/8″ 316 697
4″ 100 311.2 53.8 162.1 235 31.8 8 1 1/8″ 33 72.8
5″ 125 374.7 73.2 196.9 279.4 35.1 8 1 1/4″ 60 132
6″ 150 393.7 82.6 228.6 317.5 31.8 12 1 1/8″ 75 165
18″ 450 914.4 162.1 596.9 685.8 50.8 20 1 7/8″
20″ 500 984.3 177.8 641.4 749.3 53.8 20 2″
14″ 350 749.3 133.4 495.3 558.8 41.1 20 1 1/2″
16″ 400 825.5 146.1 552.5 616 44.5 20 1 5/8″
24″ 600 1168.4 203.2 762 901.7 66.5 20 2 1/2″
ASME/ANSI B16.5 2500lb Blind Flange Weight
Pipe Normal Diam. O.D. Flange Thk. Of Flange Min Diam.of BoltCircle Diam.of BoltHoles Numberof Bolts Diam. ofBolts(inch) KG LB
inch dn O C BC BH BN BD
1″ 25 158.8 35.1 108 25.4 4 7/8″ 5 12
1-1/4″ 32 184.2 38.1 130 28.4 4 1″ 8 18
1-1/2″ 40 203.2 44.5 146.1 31.8 4 1 1/8″ 11 25
1/2″ 15 133.4 30.2 88.9 22.4 4 3/4″ 3 7
3″ 80 304.8 66.5 228.6 35.1 8 1 1/4″ 39 86
4″ 100 355.6 76.2 273.1 41.1 8 1 1/2″ 60 133
5″ 125 419.1 91.9 323.9 47.8 8 1 3/4″ 101 223
3/4″ 20 139.7 31.8 95.3 22.4 4 3/4″ 4.5 10
8″ 200 552.5 127 438.2 53.8 12 2″ 242 533
10″ 250 673.1 165.1 539.8 66.5 12 2 1/2″ 465 1023
12″ 300 762 184.2 619.3 73.2 12 2 3/4″ 665 1463
2″ 50 235 50.8 171.5 28.4 8 1″ 17 38
2-1/2″ 65 266.7 57.2 196.9 31.8 8 1 1/8″ 25 55
6″ 150 482.6 108 368.3 53.8 8 2″ 156 345

Blind Flanges Dimensions Tolerance

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 mm6.35 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 mmEccentricity 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

Advantages of Blind Flanges

  • Blind Flanges are convenient to install
  • They can save a good amount of time and money
  • A much more cost efficient way to seal a pipe when doing repairs

Stainless Steel Blind Flanges Types and Forms Availability

Stainless Steel 304 Blind Flanges Stainless Steel 304L Blind Flanges
Stainless Steel 304H Blind Flanges Stainless Steel 310 Blind Flanges
Stainless Steel 310S Blind Flanges Stainless Steel 310H Blind Flanges
Stainless Steel 316 Blind Flanges Stainless Steel 316L Blind Flanges
Stainless Steel 316H Blind Flanges Stainless Steel 316Ti Blind Flanges
Stainless Steel 317 Blind Flanges Stainless Steel 317L Blind Flanges
Stainless Steel 321 Blind Flanges Stainless Steel 321H Blind Flanges
Stainless Steel 347 Blind Flanges Stainless Steel 446 Blind Flanges
Stainless Steel 410 Blind Flanges Stainless Steel 904L Blind Flanges

Top Nations We Export and Supply Forged Blind Flanges

  • Afghanistan
  • Algeria
  • Angola
  • Argentina
  • Australia
  • Austria
  • Azerbaijan
  • Bahrain
  • Bangladesh
  • Belarus
  • Belgium
  • Bhutan
  • Bolivia
  • Brazil
  • Bulgaria
  • Canada
  • Chile
  • China
  • Colombia
  • Costa Rica
  • Croatia
  • Czech Republic
  • Denmark
  • Ecuador
  • Egypt
  • Estonia
  • Finland
  • France
  • Gabon
  • Ghana
  • Greece
  • Hong Kong
  • Hungary
  • India
  • Indonesia
  • Iran
  • Iraq
  • Israel
  • Italy
  • Japan
  • Jordan
  • Kazakhstan
  • Kenya
  • Kuwait
  • Lebanon
  • Libya
  • Lithuania
  • Malaysia
  • Mexico
  • Mongolia
  • Morocco
  • Netherlands
  • New Zealand
  • Nigeria
  • Norway
  • Oman
  • Pakistan
  • Peru
  • Philippines
  • Poland
  • Portugal
  • Qatar
  • Romania
  • Russia
  • Saudi Arabia
  • Serbia
  • Singapore
  • Slovakia
  • South Africa
  • South Korea
  • Spain
  • Sri Lanka
  • Sweden
  • Switzerland
  • Taiwan
  • Thailand
  • Trinidad & Tobago
  • Tunisia
  • Turkey
  • Ukraine
  • United Arab Emirates (UAE)
  • United Kingdom (UK)
  • United States (US)
  • Venezuela
  • Vietnam
  • Yemen
  • Aberdeen
  • Abu Dhabi
  • Afghanistan
  • Ahmedabad
  • Ahvaz
  • Al Jubail
  • Al Khobar
  • Algiers
  • Ankara
  • Atyrau
  • Bangkok
  • Bengaluru
  • Bhopal
  • Bogota
  • Brisbane
  • Busan
  • Cairo
  • Calgary
  • Caracas
  • Chandigarh
  • Chennai
  • Chiyoda
  • Coimbatore
  • Colombo
  • Courbevoie
  • Dallas
  • Dammam
  • Doha
  • Dubai
  • Edmonton
  • Ernakulam
  • Faridabad
  • Geoje-si
  • Gimhae-si
  • Granada
  • Gurgaon
  • Hanoi
  • Haryana
  • Ho Chi Minh City
  • Hong Kong
  • Houston
  • Howrah
  • Hyderabad
  • Indore
  • Istanbul
  • Jakarta
  • Jeddah
  • Karachi
  • Kolkata
  • Kuala Lumpur
  • Kuwait City
  • La Victoria
  • Lagos
  • Lahore
  • London
  • Los Angeles
  • Ludhiana
  • Madrid
  • Manama
  • Melbourne
  • Mexico City
  • Milan
  • Montreal
  • Moscow
  • Mumbai
  • Muscat
  • Navi Mumbai
  • New Delhi
  • New York
  • Noida
  • Perth
  • Petaling Jaya
  • Pimpri-Chinchwad
  • Port-of-Spain
  • Pune
  • Rajkot
  • Rio de Janeiro
  • Riyadh
  • Santiago
  • Secunderabad
  • Seoul
  • Sharjah
  • Singapore
  • Surat
  • Sydney
  • Tehran
  • Thane
  • Thiruvananthapuram
  • Toronto
  • Ulsan
  • Vadodara
  • Visakhapatnam
  • Vung Tau

Stainless Steel Blind Flanges Applications

Off-Shore Oil Drilling Companies Power Generation Gas Processing Petrochemicals
Pharmaceutical Equipment Specialty Chemicals Chemical Equipment Pharmaceuticals
Pulp & Paper Industry Sea Water Equipment Heat Exchangers Condensers

Call +91 99679 94496 / +91-22-2388 3775 / 76 OR
Email us at sales@petromatco.com for quick response

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