Industrial Pipe Flange

Stainless Steel Blind Flange

ANSI B16.5 Class 150 and CL 300 Blind Flange manufacturer in India, buy Carbon Steel BLRF Flange at factory price in Mumbai


Blind flanges, unlike it's other counterpart flanges, has no hollow core. The primary function of a blind flange is to seal or shut off a piping system. In addition to being constructed in a standard size, the Carbon Steel BLRF Flange Dimensions could be customised to meet the requirements of the buyer. The most common material that is highly demanded the manufacture of the ASME B16.5 Blind Flange includes stainless steel and carbon steel. Property wise, both a Stainless Steel Blind Flange differ from a carbon steel one. This is only because of their chemistry. While carbon steels use only carbon and iron as their alloying content a stainless steel ANSI B16.5 Threaded Blind Flange contains multiple alloyants, thereby effectively increasing its mechanical properties.

On the other hand, using carbon steel for the production of a 4 inch Slip On Blind Flange drastically reduces it's cost, making it a highly valued material. Since flanges deal with stresses or pressure applied on them it is necessary to select the appropriate material in combination with the Raised Face Blind Flange Pressure Ratinge. While the pressure rating for these flanges ranges between 150 to class 2500, different industries have different pressure ratings.

ASME B16.5 Blind Flange

ASME B16.5 Blind Flange

1/2 x 600# CS Flange BLRF

1/2" x 600# CS Flange BLRF

Stainless Steel Blind Flange Manufacturers

Stainless Steel Blind Flange


Blind Flange manufacturers in India
Table of Contents


Specification List Of 6 Inch Stainless Steel Blind Flange, Contact US Today For EN 1092 Carbon Steel Blind Flange, We Provide Mechanical Joint Blind Flange 3rd Party Testing.


ANSI B16.5 BLRF Flange Material Specification

Specification : ASME B16.5 Blind Flange
Size Chart 1/2" to 48"
Standards MSS S44, ISO70051, EN-1092, DIN, ANSI, ASME/ANSI B16.5/16.36/16.47A/16.47B, BS1560-3.1, ANSI/ASME B16.5, B16.47 Series A & B, B16.48, API7S-15, EN1092, API7S-43, API605, BS4504
EN Standards 40Bar 25Bar 10Bar 16Bar 6Bar
Most common types Threaded / Forged / Plate /Screwed
Japanese Standards 16 K 20 K, 5K, 10 K, 40 K, 30 K, 63 K
UNI Standards 25Bar 6Bar 40Bar 10Bar 16Bar
Manufacturing Shapes Ring Type Joint, Flat Face, Raised Face, Lap-Joint Face, Small Tongue, Large Tongue & Groove, Large Male-Female, Groove, Small Male-Female
Pressure Rating ANSI 600 LBS, 2500 LBS 900 LBS, 1500 LBS, Class 150 LBS, 300 LBS
Production technique
  • Heat treated, Forged and machined
Stainless Steel Blind Flange Manufacturers

Types of Blind Flange


1/2 x 600#, A182 F11 Flat Face BLRF Flange

1/2" x 600#, A182 F11 Flat Face BLRF Flange

6 Inch DIN 2656, ASTM A350 Blind Flange

6 Inch DIN 2656, ASTM A350 Blind Flange

6 inch, 125LB, SCH10, C110, Ductile Iron Blind Flange

6 inch, 125LB, SCH10, C110, Ductile Iron Blind Flange

4 inch, SCH80s,300#, Full Body Threaded Blind Flange

4 inch, SCH80s,300#, Full Body Threaded Blind Flange

24 Inch Class 300, Rf, RF API 6 Blind Flange

24 Inch Class 300, Rf, RF, API 6 Blind Flange

1 Inch RTJ, CL300, Raised Face, LF2 Blind Flange

1 Inch RTJ, CL300, Raised Face, LF2 Blind Flange

40 Inch, 150LB, Flat Face, ASTM A182 F304 Blind Pipe Flanges

40 Inch, 150LB, Flat Face, ASTM A182 F304 Blind Pipe Flanges

18 Inch (450NB), NACE MR-01-75, 600LB, UNS NO 8825, Inconel 600 B564 Raised Face Blind Flange

18 Inch (450NB), 600LB, UNS NO 8825, Inconel 600 B564 RF Blind Flange

DN15-DN60, 300LB (PN50), RF, ASTM A694 F60 Weld Neck Blind Flnages

DN15-DN60, 300LB (PN50), RF, ASTM A694 F60 Weld Neck Blind Flnages

2 Inch, Standard EN 10204-3.1, Class Rating 600, RF BLRF Connection

2 Inch, Standard EN 10204-3.1, Class Rating 600, RF BLRF Connection

PN50 30 600#, SCH120, DN300, Copper Blind Flange

PN50 30 600#, SCH120, DN300, Copper Blind Flange

4 Inch, Class 300, SCH40, ASME B16.5, Stainless Steel Blind Flange

4 Inch, Class 300, SCH40, ASME B16.5, Stainless Steel Blind Flange

6 Inch, Pressure PN100, BS EN 10204-3.1, DN50, A105N Carbon Steel Blind Flange

6 Inch, Pressure PN100, BS EN 10204-3.1, DN50, A105N Carbon Steel Blind Flange

3 inch, 900LB, Raised Face, DN500, PN20, Mechanical Joint BLRF

3 inch, 900LB, Raised Face, DN500, PN20, Mechanical Joint BLRF

10 Inch, 400LB, PN100, DN250, RF, ASTM A105N Pipe Blind Flange

10 Inch, 400LB, PN100, DN250, RF, ASTM A105N Pipe Blind Flange

2 inch, SCH 180s, DN100, PN20, F316L Stainless Steel Blind Flange

2 inch, SCH 180s, DN100, PN20, F316L Stainless Steel Blind Flange

3 inch, Class 1500, DN100, PN20, Raised Face BLRF Flange

3 inch, Class 1500, DN100, PN20, Raised Face BLRF Flange

4 inch, 2500#, SCh 10, DN50, NPT Blind Flange

4 inch, 2500#, SCh 10, DN50, NPT Blind Flange

2 inch, Class 300, ASTM A182 F316L RF Socket Blind Flange

2 inch, Class 300, ASTM A182 F316L RF Socket Blind Flange

2 inch, FF, 150#, Weldneck Blind Flange

2 inch, FF, 150#, Weldneck Blind Flange


ASME B16.5 Blind Flange Dimensions

ASME B16.5 Blind Flange Dimensions

Refer Class 150 Blind Flange Dimensions And 300# Blind Flange Dimensions, Weight Chart Of Copper Blind Flange.


Class 150 Blind Flange Dimensions Table

Normal Pipe Size "A"
(O.D.)		 "B"
(Thick.)		 "C"
(RF Dia.)		 "D"
(B.C.D.)		 # Bolt
Holes		 Dia. of
Bolt Holes		 Approx.
Weight
1/2" 3-1/2 7/16 1-3/8 2-3/8 4 5/8 2
3/4" 3-7/8 1/2 1-11/16 2-3/4 4 5/8 2
1" 4-1/4 9/16 2 3-1/8 4 5/8 2
1-1/4" 4-5/8 5/8 2-1/2 3-1/2 4 5/8 3
1-1/2" 5 11/16 2-7/8 3-7/8 4 5/8 3
2" 6 3/4 3-5/8 4-3/4 4 3/4 4
2-1/2" 7 7/8 4-1/8 5-1/2 4 3/4 7
3" 7-1/2 15/16 5 6 4 3/4 9
3-1/2" 8-1/2 15/16 5-1/2 7 8 3/4 13
4" 9 15/16 6-3/16 7-1/2 8 3/4 17
5" 10 15/16 7-5/16 8-1/2 8 7/8 20
6" 11 1 8-1/2 9-1/2 8 7/8 27
8" 13-1/2 1-1/8 10-5/8 11-3/4 8 7/8 47
10" 16 1-3/16 12-3/4 14-1/4 12 1 67
12" 19 1-1/4 15 17 12 1 123
14" 21 1-3/8 16-1/4 18-3/4 12 1-1/8 139
16" 23-1/2 1-7/16 18-1/2 21-1/4 16 1-1/8 187
18" 25 1-9/16 21 22-3/4 16 1-1/4 217
20" 27-1/2 1-11/16 23 25 20 1-1/4 283
24" 32 1-7/8 27-1/4 29-1/2 20 1-3/8 415
Stainless Steel Blind Flange Manufacturers


Carbon Steel 300# Blind Flange Dimensions

Normal Pipe Size "A"
(O.D.)		 "B"
(Thick.)		 "C"
(RF Dia..)		 "D"
(B.C.D.)		 # Bolt
Holes		 Dia. of
Bolt Holes		 Approx.
Weight
1/2" 3-3/4 9/16 1-3/8 2-5/8 4 5/8 2
3/4" 4-5/8 5/8 1-11/16 3-1/4 4 3/4 3
1" 4-7/8 11/16 2 3-1/2 4 3/4 4
1-1/4" 5-1/4 3/4 2-1/2 3-7/8 4 3/4 6
1-1/2" 6-1/8 13/16 2-7/8 4-1/2 4 7/8 7
2" 6-1/2 7/8 3-5/8 5 8 3/4 8
2-1/2" 7-1/2 1 4-1/8 5-7/8 8 7/8 12
3" 8-1/4 1-1/8 5 6-5/8 8 7/8 16
3-1/2" 9 1-3/16 5-1/2 7-1/4 8 7/8 21
4" 10 1-1/4 6-3/16 7-7/8 8 7/8 28
5" 11 1-3/8 7-5/16 9-1/4 8 7/8 37
6" 12-1/2 1-7/16 8-1/2 10-5/8 12 7/8 48
8" 15 1-5/8 10-5/8 13 12 1 79
10" 17-1/2 1-7/8 12-3/4 15-1/4 16 1-1/8 122
12" 20-1/2 2 15 17-3/4 16 1-1/4 183
14" 23 2-1/8 16-1/4 20-1/4 20 1-1/4 241
16" 25-1/2 2-1/4 18-1/2 22-1/2 20 1-3/8 315
18" 28 2-3/8 21 24-3/4 24 1-3/8 414
20" 30-1/2 2-1/2 23 27 24 1-3/8 515
24" 36 2-3/4 27-1/4 32 24 1-5/8 800
Stainless Steel Blind Flange Manufacturers


ASTM A105 CS Flange BLRF Weight Chart According to ASME B16.5

ASME B16.5 Blind Flange Pressure With Weight and Size
NPS 150LB 300LB 600LB 900LB 1500LB 2500LB
Weld Neck SORF BLRF Weld Neck SORF BLRF Weld Neck SORF BLRF Weld Neck SORF BLRF Weld Neck SORF BLRF Weld Neck SORF BLRF
1/2" 2 1 1 2 1 1 2 2 2 Class 1500 WEIGHTS 5 4 4 7 7 7
3/4" 2 2 2 3 3 3 4 3 3 Class 1500 WEIGHTS 6 5 6 8 8 8
1" 3 2 2 4 3 3 4 4 4 Class 1500 WEIGHTS 9 8 8 12 11 11
1 1/2" 4 3 3 7 6 6 8 7 8 Class 1500 WEIGHTS 13 12 13 25 22 23
2" 6 5 5 9 7 8 12 9 10 Class 1500 WEIGHTS 25 25 25 42 37 39
2 1/2" 8 7 7 12 10 12 18 13 15 Class 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


Class 600 Stainless Steel Blind Flange Dimensions

ASME B16.5 Blind Flange 600 Dimensions
ø D b g k Holes l Kg.
1/2" 95,2 14,3 34,9 66,7 4 15,9 0,700
3/4" 117,5 15,9 42,9 82,5 4 19,0 1,200
1" 123,8 17,5 50,8 88,9 4 19,0 1,500
1 1/4" 133,3 20,6 63,5 98,4 4 19,0 2,000
1 1/2" 155,6 22,2 73,0 114,3 4 22,2 3,200
2" 165,1 25,4 92,1 127,0 8 19,0 4,300
2 1/2" 190,5 28,6 104,8 149,2 8 22,2 6,000
3" 209,5 31,7 127,0 168,3 8 22,2 8,000
3 1/2" 228,6 34,9 139,7 184,1 8 25,4 10,500
4" 273,0 38,1 157,2 215,9 8 25,4 18,000
5" 330,2 44,4 185,7 266,7 8 28,6 28,500
6" 355,6 47,6 215,9 292,1 12 28,6 35,500
8" 419,1 55,6 269,9 349,2 12 31,7 58,000
10" 508,0 63,5 323,8 431,8 16 34,9 98,000
12" 558,8 66,7 381,0 488,9 20 34,9 125,000
14" 603,2 69,8 412,7 527,0 20 38,1 151,000
16" 685,8 76,2 469,9 603,2 20 41,3 215,000
18" 742,9 82,5 533,4 654,0 20 44,4 287,000
20" 812,8 88,9 584,2 723,9 24 44,4 366,000
22" 869,9 95,2 641,2 777,9 24 47,6 437,000
24" 939,8 101,6 692,1 838,2 24 50,8 532,000


Global Suppliers of 4 inch To 24 inch Aluminum Blind Flange In India, PN16 Threaded Blind Flange PDO Certified & Tested Materials, Stainless Steel Blind Flange Manufacturers, ASME b16.5 Ductile Iron Blind Flange For Fastest Delivery To Our Customers.

En 1092 Class 1500 Blind Flange Dimensions


NPS Diameter O.D. Flanges Thick. Of Flanges Min Dia. of Hub Dia. of Bolt Circle Dia. of Bolt Holes Number of Bolts Dia. of Bolts(inch) Approx. Weight
in. dn O C X BC BH BN BD KG/PCS LB/PCS
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
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
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
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
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
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
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
24 600 1168.4 203.2 762 901.7 66.5 20 2 1/2


Stainless Steel Blind Flange manufacturers in India, Check DIN Raised Face Blind Flange Pressure Class, One Stop Shop For All JIS Alloy Steel BLRF Flange Material In Mumbai.

Raised Face Blind Flange Dimensions 2500


NPS Dia. Outer Dia. Flanges Thk. Of Flanges Min Dia. of Bolt Circle Dia. of Bolt Holes Num. of Bolts Dia. of Bolts(inch) KG LB
inch. dn O C BC BH BN BD
1/2 15 133.4 30.2 88.9 22.4 4 3/4 3 7
3/4 20 139.7 31.8 95.3 22.4 4 3/4 4.5 10
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
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
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
6 150 482.6 108 368.3 53.8 8 2 156 345
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


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