ANSI B16.5 Class 150 Blind Flanges Manufacturer & Supplier

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ANSI B16.5 Class 150 Blind Flanges

India’s Leading ANSI B16.5 Alloy Steel Class 150 Blind Flanges Supplier in india, Class 150 BLRF Flange at Low Price, Buy Stainless Steel ANSI B16.5 Class 150 Blind Flange Manufacturer, BS4504 Blind Flange Manufacturer & Supplier in India.

Kanak Steel & Engg Co. is a prominent manufacturer and trader of ANSI B16.5 Class 150 Blind Flanges, which are likewise broadly utilized in specific industries for pipe connection.

However, it gives a one-piece and self-strengthened connection, wherein the sphere-formed layout of it we could the use of mechanical burning machinery. Meanwhile, the layout of such flanges set away the use of automated burning tools. Monel Alloy ANSI B16.5 Class 150 Blind Flanges are smooth to get to in different desires which include temperature and stress particulars, collectively with unique header, department wall depth. They have effective seamless manufacture, accurateness and dimensional sturdiness.

It is broadly used for in industries pipe connection, and are reasonably trouble-loose to put in and remove. Tools whilst weighed down with needed flanges, they’re related to the stopgap valve in a water tight way. It presents a one-piece and self-assist connection, wherein round layout of it lets in the use of mechanical burning tools. Hastelloy Alloy ANSI B16.5 Class 150 Blind Flanges is broadly used for connection in pipes and tubes in numerous industries, wherein it presents a one-piece and self-strengthened connection. Also, it’s miles typically used for Thermowell and instrumentation connections. Nonetheless it is able to as nicely be used for a drainage connection whilst an opening isn’t always handy at the same time as the usage of Welded.

However, if used for lateral correlations, then they’re pretty accessible to satisfy specific reinforcement requirements. It has been made up in this kind of way with admire to lessen the pressure awareness and pipe stresses features. The weld right here is successful sufficient to examine through consultant weld scrutiny strategies which include ultrasound and radiography inspections. Nickel Alloy ANSI B16.5 Class 150 Blind Flanges are used to attach the vital nicely and are as nicely being designed to attach an exceptional deal of types of specific length and duration sensors and wells. It is likewise held through a superb conserving hex-socket related to an execution rod that passes all of the mode within the route of a sealed nicely housing.

Largest Manufacturer & Supplier of ANSI B16.5 Class 150 Blind Flange Standards, DIN 2573 Blind Flange Supplier, Jis B2220, EN1092-1 Blind Flange Supplier, CF8M Class 150 Blind Flanges in Mumbai, India.

Specification Of ANSI B16.5 Class 150 Blind Flange

ANSI B16.5 Class 150 Blind Flange Standards ANSI B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ANSI Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JIS B2220, BS1560-3.1, API7S-15, API7S-43, API 605, EN1092
ANSI B16.5 Class 150 Blind Flange Pressure Rating ANSI Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
ANSI B16.5 ANSI B16.5 Class 150 Blind Flange Size Chart 1/2″ (15 NB) to 48″ (1200 NB) DN10~DN5000
ANSI B16.5 Class 150 Blind Flange Pressure Calculation in DIN 6 Bar, 10Bar, 16Bar, 25Bar, 40Bar / PN6 PN10 PN16 PN25 PN40, PN64
JIS 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K
UNI 6Bar 10Bar 16Bar 25Bar 40Bar
EN 6Bar 10Bar 16Bar 25Bar 40Bar
Coating Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized
Most common types of ANSI B16.5 Class 150 Blind Flange Forged / Threaded / Screwed / Plate
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
Connect Type/ Flange Face Type Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, , Groove
Special design As per your drawing

AS, ANSI, BS, DIN and JIS
15 NB (1/2″) to 200 NB (8″)
Equal and Reducing Configurations
Test Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector
Equipment Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc
Origin Indian / West Europe / Japan / USA / Korean
Manufacturer of ANSI, DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc.
ANSI B16.5 Class 150 Blind Flange : -BS Flange, EN Flange, API 6A Flanges, ANSI Flanges, ANSI Flanges, DIN Flanges, EN1092-1 Flanges, UNI Flanges, JIS/ KS Flanges, BS4504 Flanges, GB Flanges, AWWA C207 Flanges, GOST Flanges, PSI Flangse

  • B.S: BS4504 , BS3293, BS1560, BS10
  • AS 2129: Table D; Table E; Table H
  • ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
  • ANSI : ANSI B16.5, ANSI B16.47 (API 605), MSS SP44, ANSI B16.36, ANSI B16.48
  • ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48
  • American standard (ANSI)
  • German (DIN)
  • British standard (BS)
  • DIN: DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636, DIN 2637, DIN 2638 ANSI B16.5 Class 150 Blind Flange
  • The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276
ANSI B16.5 Class 150 Blind Flange Uses & application
  • Bitumen upgraders.
  • Heavy oil refineries.
  • Nuclear power (mostly seamless).
  • Petrochemicals and acids.
Export to Ireland, Singapore, Indonesia, Ukraine, Saudi Arabia, Spain, Canada, USA, Brazil, Thailand, Korea, Iran, India, Egypt, Oman, Dubai, Peru, etc
Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175

Manufacturing ANSI B16.5 Class 150 Blind Flanges Specification

Nominal Pipe Size Outside Diameter (O) Thickness (T) Raised Face Diameter (R) Length Thru Hub (Y) Point of Weld (A) Hub Diameter (X) Bore (B) Approximate Weight (lbs) Bolt Circle (C) Number of Holes Diameter of Holes
1/2 3.50 0.44 1.38 1.88 0.84 1.19 0.62 2 2.38 4 0.63
3/4 3.88 0.50 1.69 2.06 1.05 1.50 0.82 2 2.75 4 0.63
1 4.25 0.56 2.00 2.19 1.32 1.94 1.05 3 3.13 4 0.63
1 1/4 4.63 0.63 2.50 2.25 1.66 2.31 1.38 3 3.50 4 0.63
1 1/2 5.00 0.69 2.88 2.44 1.90 2.56 1.61 4 3.88 4 0.63
2 6.00 0.75 3.63 2.50 2.38 3.06 2.07 6 4.75 4 0.75
2 1/2 7.00 0.88 4.13 2.75 2.88 3.56 2.47 8 5.50 4 0.75
3 7.50 0.94 5.00 2.75 3.50 4.25 3.07 10 6.00 4 0.75
3 1/2 8.50 0.94 5.50 2.81 4.00 4.81 3.55 12 7.00 8 0.75
4 9.00 0.94 6.19 3.00 4.50 5.31 4.03 15 7.50 8 0.75
5 10.00 0.94 7.31 3.50 5.56 6.44 5.05 19 8.50 8 0.88
6 11.00 1.00 8.50 3.50 6.63 7.56 6.07 24 9.50 8 0.88
8 13.50 1.13 10.63 4.00 8.63 9.69 7.98 39 11.75 8 0.88
10 16.00 1.19 12.75 4.00 10.75 12.00 10.02 52 14.25 12 1.00
12 19.00 1.25 15.00 4.50 12.75 14.38 12.00 80 17.00 12 1.00
14 21.00 1.38 16.25 5.00 14.00 15.75 13.25 110 18.75 12 1.13
16 23.50 1.44 18.50 5.00 16.00 18.00 15.25 140 21.25 16 1.13
18 25.00 1.56 21.00 5.50 18.00 19.88 17.25 150 22.75 16 1.25
20 27.50 1.69 23.00 5.69 20.00 22.00 19.25 180 25.00 20 1.25
22 29.50 1.81 25.25 5.88 22.00 24.25 21.25 225 27.25 20 1.38
24 32.00 1.88 27.25 6.00 24.00 26.13 23.25 260 29.50 20 1.38

ANSI B16.5 Class 150 Blind Flanges Dimensions & Weight Chart

ANSI B16.5 150lb/sq.in. Blind Flange BL-RF
ø D b g m J h k Holes l Kg.
1/2″ 88,9 11,1 34,9 30,2 22,3 15,9 60,3 4 15,9 0,400
3/4″ 98,4 12,7 42,9 38,1 27,7 15,9 69,8 4 15,9 0,700
1″ 107,9 14,3 50,8 49,2 34,5 17,5 79,4 4 15,9 0,800
1 1/4″ 117,5 15,9 63,5 58,8 43,2 20,6 88,9 4 15,9 1,100
1 1/2″ 127,0 17,5 73,0 65,1 49,5 22,2 98,4 4 15,9 1,400
2″ 152,4 19,0 92,1 77,8 62,0 25,4 120,6 4 19,0 2,200
2 1/2″ 177,8 22,2 104,8 90,5 74,7 28,6 139,7 4 19,0 3,600
3″ 190,5 23,8 127,0 107,9 90,7 30,2 152,4 4 19,0 4,100
3 1/2″ 215,9 23,8 139,7 122,2 103,4 31,7 177,8 8 19,0 5,200
4″ 228,6 23,8 157,2 134,9 116,1 33,3 190,5 8 19,0 5,600
5″ 254,0 23,8 185,7 163,6 143,8 36,5 215,9 8 22,2 6,300
6″ 279,4 25,4 215,9 192,1 170,7 39,7 241,3 8 22,2 7,500
8″ 342,9 28,6 269,9 246,1 221,5 44,4 298,4 8 22,2 12,600
10″ 406,4 30,2 323,8 304,8 276,3 49,2 361,9 12 25,4 18,500
12″ 482,6 31,7 381,0 365,1 327,1 55,6 431,8 12 25,5 28,000
14″ 533,4 34,9 412,7 400,0 359,1 57,1 476,2 12 28,6 36,000
16″ 596,9 36,5 469,9 457,2 410,5 63,5 539,7 16 28,6 46,000
18″ 635,0 39,7 533,4 504,8 461,8 68,3 577,8 16 31,7 50,000
20″ 698,5 42,9 584,2 558,8 513,1 73,0 635,0 20 31,7 64,000
22″ 749,3 46,0 641,2 609,6 564,4 79,4 692,1 20 34,9 72,000
24″ 812,8 47,6 692,1 663,6 615,9 82,5 749,3 20 34,9 89,000

B16.5 Class 150 Blind Flange Material

Carbon Steel ANSI B16.5 Class 150 Blind Flange ASTM/ANSI A/SA105 A/SA105N & A/SA216-WCB, DIN 1.0402, DIN 1.0460, DIN 1.0619, Die Steel, ASTM A105 / ANSI SA105, A105N, ASTM A350 LF2 / ANSI SA350, High Yield CS ASTM A694 / A694 (F52 F56 F60 F65 F70 F80)
Stainless Steel ANSI B16.5 Class 150 Blind Flange ASTM/ANSI A/SA182 F304, F304L, F316, F316L, ASTM/ANSI A/SA351 CF8, CF3, CF8M, CF3M, DIN 1.4301, DIN 1.4306, DIN 1.4401, DIN 1.4404, DIN 1.4308, DIN 1.4408, DIN 1.4306, DIN 1.4409
Alloy Steel ANSI B16.5 Class 150 Blind Flange ASTM A182 / ANSI SA182 F5, F9, F11, F12, F22, F91
Titanium ANSI B16.5 Class 150 Blind Flange ASTM B381 / ANSI SB381, Titanium Gr. 1, Titanium Gr. 2, Titanium Gr. 4, Titanium Gr. 5, Titanium Gr. 7
ASTM  R50250/GR.1 | R50400/GR.2 | R50550/GR.3 | R50700/GR.4 | GR.6 |R52400/GR.7 | R53400/GR.12 | R56320/GR.9 |R56400/GR.5
Copper ANSI B16.5 Class 150 Blind Flange T1, T2, C10100, C10200, C10300, C10400, C10500, C10700, C10800, C10910,C10920, TP1, TP2, C10930, C11000, C11300, C11400, C11500, C11600, C12000,C12200, C12300, TU1, TU2, C12500, C14200, C14420, C14500, C14510, C14520, C14530, C17200, C19200, C21000, C23000, C26000, C27000, C27400, C28000, C33000, C33200, C37000, C44300, C44400, C44500, C60800, C63020, C68700, C70400, C70600, C70620, C71000, C71500, C71520, C71640, etc
Copper Nickel ANSI B16.5 Class 150 Blind Flange ASTM / ANSI SB 61 / 62 / 151 / 152, Copper Nickel 90/10 (C70600 ), Cupro Nickel 70/30 (C71500), UNS C71640
Brass ANSI B16.5 Class 150 Blind Flange 3602 / 2604 / H59 / H62 / etc.
Inconel ANSI B16.5 Class 150 Blind Flange ASTM B564 / ANSI SB564, Inconel 600, 601, 625, 718, 783, 690, x750 ANSI B16.5 Class 150 Blind Flange
Hastelloy ANSI B16.5 Class 150 Blind Flange ASTM B564 / ANSI SB564, Hastelloy C276 (UNS N10276), C22 (UNS N06022), C4, C2000, B2, B3, X Flanges
Monel ANSI B16.5 Class 150 Blind Flange ASTM B564 / ANSI SB564, Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500)
Alloy 20 ANSI B16.5 Class 150 Blind Flange ASTM B462 / ANSI SB462, Carpenter® 20 Alloy, Alloy 20Cb-3
Aluminium ANSI B16.5 Class 150 Blind Flange 5052 /6061/ 6063 / 2017 / 7075 / etc.
Nickel ANSI B16.5 Class 150 Blind Flange ASTM B564 / ANSI SB564, Nickel 200, Nickel 201, Nickel 205, Nickel 205LC
Duplex ANSI B16.5 Class 150 Blind Flange S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Super Duplex ANSI B16.5 Class 150 Blind Flange S32750 / S32760 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Incoloy ANSI B16.5 Class 150 Blind Flange ASTM B564 / ANSI SB564, Incoloy 800, 800H, 800HT (UNS N08800), 825 (UNS N08825), 925 Flanges
254 Smo ANSI B16.5 Class 150 Blind Flange ASTM A182 / ANSI SA182, SMO 254/6Mo, UNS S31254, DIN 1.4547
Nimonic ANSI B16.5 Class 150 Blind Flange Nimonic 75, Nimonic 80A, Nimonic 90
Other ANSI B16.5 Class 150 Blind Flange material Tin bronze, Aluminum bronze, Lead bronze

Weight Chart of ANSI B16.5 Class 150 Blind Flange

Flange Weights by Pressure Class and Size
Pipe Size 150 # 300 # 600 # 900 # 1500 # 2500 #
WN SO BLD WN SO BLD WN SO BLD WN SO BLD WN SO BLD WN SO BLD
1/2″ 2 1 1 2 1 1 2 2 2 SEE 1500 # WEIGHTS 5 4 4 7 7 7
3/4″ 2 2 2 3 3 3 4 3 3 SEE 1500 # WEIGHTS 6 5 6 8 8 8
1″ 3 2 2 4 3 3 4 4 4 SEE 1500 # WEIGHTS 9 8 8 12 11 11
1 1/2″ 4 3 3 7 6 6 8 7 8 SEE 1500 # WEIGHTS 13 12 13 25 22 23
2″ 6 5 5 9 7 8 12 9 10 SEE 1500 # WEIGHTS 25 25 25 42 37 39
2 1/2″ 8 7 7 12 10 12 18 13 15 SEE 1500 # WEIGHTS 36 36 35 52 55 56
3″ 10 8 9 15 13 16 23 16 20 31 26 29 48 48 48 94 83 86
4″ 15 13 17 25 22 27 42 37 41 53 53 54 73 73 73 145 125 130
5″ 19 15 20 32 28 35 68 63 68 86 83 87 130 130 140 245 210 225
6″ 24 19 26 42 39 50 81 80 86 110 110 115 165 165 160 380 325 345
8″ 39 30 45 67 58 81 120 115 140 175 170 200 275 260 300 580 485 530
10″ 52 43 70 91 81 124 190 170 230 260 245 290 455 435 510 1075 930 1025
12″ 80 64 110 140 115 185 225 200 295 325 325 415 690 580 690 1525 1100 1300
14″ 110 90 140 180 165 250 280 230 355 400 400 520 940 NA 975 NA NA NA
16″ 140 98 180 250 190 295 390 330 495 495 425 600 1250 NA 1300 NA NA NA
18″ 150 130 220 320 250 395 475 400 630 680 600 850 1625 NA 1750 NA NA NA
20″ 180 165 285 400 315 505 590 510 810 830 730 1075 2050 NA 2225 NA NA NA
22″ 225 185 355 465 370 640 720 590 1000 NA NA NA NA NA NA NA NA NA
24″ 260 220 430 580 475 790 830 730 1250 1500 1400 2025 3325 NA 3625 NA NA NA

ANSI B16.5 #150 Blind Flange Pressure Ratings

Pressure-Temperature Ratings for ASTM Group 2-1.1 Materials
Working pressure by Classes, BAR
Temp
-29 °C		 150 300 400 600 900 1500 2500
38 19.6 51.1 68.1 102.1 153.2 255.3 425.5
50 19.2 50.1 66.8 100.2 150.4 250.6 417.7
100 17.7 46.6 62.1 93.2 139.8 233 388.3
150 15.8 45.1 60.1 90.2 135.2 225.4 375.6
200 13.8 43.8 58.4 87.6 131.4 219 365
250 12.1 41.9 55.9 83.9 125.8 209.7 349.5
300 10.2 39.8 53.1 79.6 119.5 199.1 331.8
325 9.3 38.7 51.6 77.4 116.1 193.6 322.6
350 8.4 37.6 50.1 75.1 112.7 187.8 313
375 7.4 36.4 48.5 72.7 109.1 181.8 303.1
400 6.5 34.7 46.3 69.4 104.2 173.6 289.3
425 5.5 28.8 38.4 57.5 86.3 143.8 239.7
450 4.6 23 30.7 46 69 115 191.7
475 3.7 17.4 23.2 34.9 52.3 87.2 145.3
500 2.8 11.8 15.7 23.5 35.3 58.8 97.9
538 1.4 5.9 7.9 11.8 17.7 29.5 49.2
Temp
°C		 150 300 400 600 900 1500 2500
Pressure-Temperature Ratings for ASTM Group 2-2.3 Materials
Working pressure by Classes, BAR
Temp
-29 °C		 150 300 400 600 900 1500 2500
38 15.9 41.4 55.2 82.7 124.1 206.8 344.7
50 15.3 40 53.4 80 120.1 200.1 333.5
100 13.3 34.8 46.4 69.6 104.4 173.9 289.9
150 12 31.4 41.9 62.8 94.2 157 261.6
200 11.2 29.2 38.9 58.3 87.5 145.8 243
250 10.5 27.5 36.6 54.9 82.4 137.3 228.9
300 10 26.1 34.8 52.1 78.2 130.3 217.2
325 9.3 25.5 34 51 76.4 127.4 212.3
350 8.4 25.1 33.4 50.1 75.2 125.4 208.9
375 7.4 24.8 33 49.5 74.3 123.8 206.3
400 6.5 24.3 32.4 48.6 72.9 121.5 202.5
425 5.5 23.9 31.8 47.7 71.6 119.3 198.8
450 4.6 23.4 31.2 46.8 70.2 117.1 195.1
Temp
°C		 150 300 400 600 900 1500 2500

ANSI B16.5 #150 Blind Flange Schedule Chart

BLRF FLANGES BORES (in inchines)
Nom
Pipe
Size		 Outside
Diam		 Sched
10		 Sched
20		 Sched
30		 Std.
Wall		 Sched
40		 Sched
60		 Extra
Strong		 Sched
80		 Sched
100		 Sched
120		 Sched
140		 Sched
160		 Double
Extra
Strong
1/2” 0.840 0.674 – – 0.622 0.622 – 0.546 0.546 – – – 0.464 0.252
3/4” 1.050 0.884 – – 0.824 0.824 – 0.742 0.742 – – – 0.612 0.434
1” 1.315 1.097 – – 1.049 1.049 – 0.957 0.957 – – – 0.815 0.599
1.1/4” 1.660 1.442 – – 1.380 1.380 – 1.278 1.278 – – – 1.160 0.896
1.1/2” 1.900 1.682 – – 1.610 1.610 – 1.500 1.500 – – – 1.338 1.100
2” 2.375 2.157 – – 2.067 2.067 – 1.939 1.939 – – – 1.687 1.503
2.1/2” 2.875 2.635 – – 2.469 2.469 – 2.323 2.323 – – – 2.125 1.771
3” 3.500 3.260 – – 3.068 3.068 – 2.900 2.900 – – – 2.624 2.300
3-1/2” 4.000 3.760 – – 3.548 3.548 – 3.364 3.364 – – – – 2.728
4” 4.500 4.260 – – 4.026 4.026 – 3.826 3.826 – 3.624 – 3.438 3.152
5” 5.563 5.295 – – 5.047 5.047 – 4.813 4.813 – 4.563 – 4.313 4.063
6” 6.625 6.357 – – 6.065 6.065 – 5.761 5.761 – 5.501 – 5.187 4.897
8” 8.625 8.329 8.125 8.071 7.981 7.981 7.813 7.625 7.625 7.437 7.187 7.001 6.813 6.875
10” 10.750 10.420 10.250 10.136 10.020 10.020 9.750 9.750 9.562 9.312 9.062 8.750 8.500 8.750
12” 12.750 12.390 12.250 12.090 12.000 11.938 11.626 11.750 11.374 11.062 10.750 10.500 10.126 10.750
14” 14.000 13.500 13.376 13.250 13.250 13.124 12.812 13.000 12.500 12.124 11.814 11.500 11.188 –
16” 16.000 15.500 15.376 15.250 15.250 15.000 14.688 15.000 14.312 13.938 13.564 13.124 12.812 –
18” 18.000 17.500 17.376 17.124 17.250 16.876 16.500 17.000 16.124 15.688 15.250 14.876 14.438 –
20” 20.000 19.500 19.250 19.000 19.250 18.812 18.376 19.000 17.938 17.438 17.000 16.500 16.062 –
24” 24.000 23.500 23.250 22.876 23.250 22.624 22.062 23.000 21.562 20.938 20.376 19.876 19.312 –
30” 30.000 29.376 29.000 28.750 29.250 – – 29.000 – – – – – –
36” 36.000 35.376 35.000 34.750 35.250 34.500 – 35.000 – – – – – –
42” 42.000 – – – 41.250 – – 41.000 – – – – – –

Dimension Tolerance Class 150 Blind Flanges

Certificate Plate Thickness in mm Width in mm Length in mm
Outside Diameter When O is 24″ or less.
When O is over 24″.		 ±0.06″ ±0.12″ ±1.6 mm ±3.2 mm
Diameter of Contact Face 0.06″ (1.6 mm) raised face.
0.25″ (6.4 mm) raised face.		 ±0.03″ ±0.02″ ±0.8 mm ±0.5mm
Diameter of Hub at Point of Welding NPS 5 and smaller.
NPS 6 and larger.		 +0.09″, -0.03″ +0.16″, -0.03″ +2.4 mm, -0.8mm +4.0 mm, -0.8 mm
Inside Diameter NPS 10, 12, 18, 20 and larger. +0.03″ +0.06″ +0.12″, -0.06″ +0.8 mm +1.6 mm +3.2 mm, -1.6 mm
Diameter of Hub at Base Hub Base is 24″or less.
Hub Base is over 24″.		 +0.06″ +0.12″ +1.6 mm +3.2 mm
Thickness NPS 18 and smaller.
NPS 20 and larger.		 +0.12″ +0.19″ +3.2 mm +4.8 mm
Drilling and Facings Bolt circle diameter Bolt Hole Spacing ±0.06″ ±0.03″ ±1.6 mm ±0.8 mm
Eccentricity of Bolt Circle and Facing NPS 2 1/2 and smaller.
NPS 3 and larger.		 ±0.03″ ±0.06″ ±0.8 mm ±1.6 mm
Length Through Hub NPS 10 and smaller.
NPS 12 and larger.		 ±0.06″ ±0.12″ ±1.6 mm ±3.2 mm

Types of ANSI B16.5 Alloy Steel Class 150 Blind Flanges We Supply

ANSI B16.5 150LB Blind Flange Supplier in Mumbai 150lb Blind Flange Manufacturer in India
BS4504 Blind Flange BS3293 Blind Flange
BS1560 Blind Flange ANSI B16.5 Class 150 Blind Flange Pn10
ANSI B16.5 Class 150 Blind Flange CF3M Din 2628 300# Blind Flange
Blind Flanges Din 2629 Supplier BS4504 PN16 BLRF Flanges