IBR Approved Flanges Manufacturers In India

IBR Approved Flanges for Boilers and Steam Pipeline

Get IBR Approved Flange Fast Delivery And Best Price, Specification List Of IBR Pipe Reducing Flange.

IBR Flange Manufacturers


IBR or as known as the Indian Boiler Regulation defines a set of standards which could be used as a guideline for several aspects such as product design, product construction, including its inspection and testing methods as well. According to the regulation, the Central Boiler Board or CBB appoints a company, which will then certify these IBR Approved Blind Flanges. Industries that deal with energy and power generation, as well as nuclear energy, require superior quality products that have been produced by IBR Pipe Flange Manufacturers In India. These manufacturers may use various standards including API, AISI, BS, ASTM, ASME, ANSI, DIN, JIS, MSSP or even NACE in the production of these flanges. Since they are international standards, the Low Alloy Steel IBR Approved Flange must also be sent with a test certificate that has been issued. Typically various alloys like stainless steel, monel, Hastelloy, carbon steels in addition to low alloy steels are used in the manufacture of good quality IBR Flange. The flanges are available in different pressure ratings. For instance, the buyer may purchase Carbon Steel IBR SORF Flanges in any of the following classes i.e. 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS and 2500 LBS. The pressure ratings are issued in pounds. Under each material, the grades used to produce them can vary, depending on the application it is to be used for. For e.g. Stainless Steel IBR Flanges could be produced from alloy grades - 304, 304L, 304H, 316, 316L and 316H.




IBR Pipe Reducing Flange Specification Format

Specification: ASME B16.5 IBR Flange
UNI 6Bar 10Bar 16Bar 25Bar 40Bar
Coating Oil Black Paint, Cold and Hot Dip Galvanized, Anti-rust Paint, Zinc Plated, Yellow Transparent
Test Certificates EN 10204/3.1B
Raw Materials Certificate
100% Radiography Test Report
Third Party Inspection Report, etc
Size Chart 1/2" to 48"
Most common types of Flange Forged / Threaded / Screwed / Plate
Pressure Rating ANSI Class 150 LBS, 900 LBS, 2500 LBS, 1500 LBS, 300 LBS, 600 LBS
JIS 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K
Standards BS, ISO 70051, DIN, BS 10, B16.47 Series A & B, API 605, API 6A, EN, ASME B16.47A/B, DIN, EN 1092-1, BS 1042, API7S-43, ASME B16.36, EN-1092, BS1560-3.1, API7S-15, B16.48, ASME/ANSI B16.5, MSS SP44, BS 4504, JIS B2220, GOST, API 590
Connect Type/ Flange Face Type Large Tongue & Groove, Lap-Joint Face (LJF), Small Male-Female (SMF), Flat Face (FF), Raised Face (RF), Small Tongue, Ring Type Joint (RTJ), Large Male-Female (LMF), Groove
Production technique
  • Forged, Heat treated and machined
EN 10Bar 16Bar 6Bar 25Bar 40Bar
IBR Flange Manufacturers In India

Trusted IBR Stainless Steel Flanges Suppliers In India, Standard Dimensions Of IBR Carbon Steel Flanges.


IBR Approved Blind Flanges Dimensions Chart

CLASS Normal Size Of Pipe IBR SORF Flange IBR NPT Flange IBR SW Flange IBR Loose Flange IBR BLRF Flange IBR WN Flange
150# ½ 1 1 2 1 2 2
¾ 2 2 2 2 2 2
1 2 2 2 2 2 3
3 3 3 3 3 3
3 3 3 3 4 4
2 5 5 5 5 5 6
8 8 8 8 7 10
3 9 9 9 9 9 11.5
11 12 11 11 13 12
4 13 13 13 13 17 16.5
5 15 15 15 15 20 21
6 19 19 19 19 27 26
8 30 30 30 30 47 42
10 43 43 43 43 70 54
12 64 64 64 64 123 88
14 90 90 90 105 140 114
16 106 98 98 140 180 140
18 130 130 130 160 220 165
20 165 165 165 195 285 197
22 185 185 185 245 355 225
24 220 220 220 275 430 268
CLASS Normal Size Of Pipe IBR SORF Flanges IBR NPT Flanges IBR SW Flanges IBR Loose Flanges IBR BLRF Flanges IBR WN Flanges
300# ½ 2 2 3 2 2 2
¾ 3 3 3 3 3 3
1 3 3 3 3 4 4
4.5 4.5 4 4.5 6 5
6.5 6.5 6 6.5 7 7
2 7 7 7 7 8 9
10 10 10 10 12 12
3 13 14 13 14.5 16 18
17 17 17 17 21 20
4 23.5 24 22 24 28 26.5
5 29 31 28 28 37 36
6 39 39 39 39 50 45
8 58 58 58 58 81 69
10 81 81 81 91 124 100
12 115 115 115 140 185 142
14 165 165 165 190 250 206
16 210 220 190 234 315 250
18 253 280 250 305 414 320
20 315 325 315 375 515 400
22 370 370 370 435 640 465
24 490 490 475 550 800 580
CLASS Normal Size Of Pipe IBR SORF Flanges IBR NPT Flanges IBR SW Flanges IBR Loose Flanges IBR BLRF Flanges IBR WN Flanges
600# ½ 2 2 2 2 3 3
¾ 3 3 3 3 4 4
1 4 4 4 4 4 4
5 5 5 5 6 6
7 7 7 7 8 8
2 9 9 9 9 10 12
13 13 13 12 15 18
3 16 16 16 15 20 23
21 21 21 20 29 26
4 37 37 37 36 41 42
5 63 63 63 63 68 68
6 80 80 80 78 86 81
8 115 15 15 112 140 120
10 177 177 177 195 231 190
12 215 215 215 240 295 226
14 259 259 259 290 378 347
16 366 366 366 400 527 481
18 476 476 476 469 665 555
20 612 612 612 604 855 690
22 590 590 590 670 1000 720
24 876 876 876 866 1250 977
IBR Flange Manufacturers In India

Rajveer Stainless And Alloy IBR Flange Manufacturers In India, Check IBR Approved Blind Flanges Pressure Rating Formula.


IBR Approved Weld Neck Flange Pressure Rating

Temperature °F 150# 300# 400# 600# 900# 1500# 2500#
-20 to 100 275 720 960 1440 2160 3600 6000
200 230 600 800 1200 1800 3000 5000
300 205 540 720 1080 1620 2700 4500
400 190 495 660 995 1490 2485 4140
500 170 465 620 930 1395 2330 3880
600 140 435 580 875 1310 2185 3640
650 125 430 575 860 1290 2150 3580
700 110 425 565 850 1275 2125 3540
750 95 415 555 830 1245 2075 3460
800 80 405 540 805 1210 2015 3360
850 65 395 530 790 1190 1980 3300
900 50 390 520 780 1165 1945 3240
950 35 380 510 765 1145 1910 3180
1000 20 320 430 640 965 1605 2675
1050 20 310 410 615 925 1545 2570
1100 20 255 345 515 770 1285 2145
1150 20 200 265 400 595 995 1655
1200 20 155 205 310 465 770 1285
1250 20 115 150 225 340 565 945
1300 20 85 115 170 255 430 715
1350 20 60 80 125 185 310 515
1400 20 50 65 95 145 240 400
1450 15 35 45 70 105 170 285
1500 10 25 35 55 80 135 230
IBR Flange Manufacturers In India

We Maintain Good Stock Of IBR Approved Weld Neck Flange, IBR Approved Alloy Steel Flange Weight Chart According to ASME B16.5.

IBR RTJ Flange Schedule Chart

Standard Class Dia. Bolt Circle Dia. Number of Bolts Bolt Size Dia. of Bolt Hole
AS4087 PN14 95 67 4 M12 14
AS 2129 Flange Table C 95 67 4 13 14
Table D 95 67 4 13 14
Table E 95 67 4 13 14
Table F 95 67 4 13 14
Table H 114 83 4 16 17
Table J 114 83 4 16 17
ANSI B16.5 ANSI 150 89 60 4 13 16
ANSI 300 95 67 4 13 16
ANSI 600 95 67 4 13 16
ANSI 900 121 83 4 19 22
ANSI 1500 121 83 4 19 22
ISO 7005 (DIN) Flange PN6 80 55 4 M10 11
PN10 95 65 4 M12 14
PN16 95 65 4 M12 14
PN20 90 60.5 4 M14 16
PN25 95 65 4 M12 14
PN40 95 65 4 M12 14

We Provide IBR RTJ Flange 3rd Party Testing, ANSI B16.5 IBR Flange Manufacturers In India

Rajveer Stainless And Alloy Provide Different Types Of IBR Approved Flange In India

IBR Approved Blind Flanges

IBR Approved Blind Flanges

IBR Approved Slip On Flanges

IBR Approved Slip On Flanges

IBR Approved Weld Neck Flanges

IBR Approved Weld Neck Flanges

IBR Approved Socket Weld Flanges

IBR Approved Socket Weld Flanges

IBR Approved Reducing Flanges

IBR Approved Reducing Flanges

IBR Approved Flat Face Flange

IBR Approved Flat Face Flange

IBR Approved Ring Type Joint Flange

IBR Approved Ring Type Joint Flange

IBR Approved Raised Face Flange

IBR Approved Raised Face Flange

IBR Approved Orifice Flange

IBR Approved Orifice Flange

IBR Approved Spectacle Flange

IBR Approved Spectacle Flange

IBR Approved Forged Flange

IBR Approved Forged Flange

IBR Approved Threaded Flange

IBR Approved Threaded Flange