Blind Flanges Suppliers + Asme b16.5 Blind Flanges Weight & dimensions

Manufacturers/exporters of High Quality Blind Flanges in Mumbai India

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Ramesh Steel is India based company, a largely diversified Blind flanges manufacturer company in india, A majority of our business originates from the India, Ramesh Steel has the capability to manufacture Blind Flanges for all pressure ratings including 75#, 125#, 150#, 175#, 250#, 300#, 350#, 400#, 600#, 900#, 1500#, and 2500#.suppliers of blind flanges in singapore malaysia houston brisbane uae.

Ramesh Steel Corporation offer blind plate flanges manufactured at our facility to companies in various industries including shipbuilding, petrochemical plants, power generation, oil refineries, waste water treatment plants, paper mills, pharmaceutical plants and turnkey projects among others.

Ramesh Steel Corporation is a specialised manufacturers of high quality ASME/ANSI/DIN industrial blind flanges in India. Ramesh Steel Corporation offer immediate delivery programs for standard size of carbon steel blind flanges and stainless steel blind flanges. Plate blind flanges manufactured in special stainless steel grades, nickel alloy and alloy steel can be supplied with just in time programs.

Our products are widely exported to countries and regions such as the United States, Europe, Russia, Turkey, houston,texas Malaysia, the UAE, Saudi Arabia, India, Brazil, Chile, Mexico, South Africa, Jordan, Tunisia, Vietnam, Indonesia, Thailand, Singapore, Colombia, and Sri Lanka.

Our blind flanges are available with raised or RTJ faces and also with female threads. Blind flanges can be supplied with or without hub as per the customer requirements.

Commonly referred as blanking flanges, Blind pipe flanges are widely used in high pressure applications. Blind flanges are generally used to seal the end of a piping system to prevent flow of liquids or gases. The use of blind flanges allows ease of access to a piping system once it has been closed.

Production Range of Blind Flanges, BL Forged Flanges

Blind Flange Size EN 1092-1 (Type 05)

The charts show the blind flange dimensions and weights according to the EN 1092-1 type 05, the European specification for steel flanges.

BLIND FLANGE DIMENSIONS PN 6

EN 1092-1 Type 05

Flange DN
Nominal Diameter
Flange Stud Bolts Flange Weight
k D b d2 Thread Bolt holes KG
15 55 80 12 11 M10 4 0,438
20 65 90 14 11 M10 4 0,657
25 75 100 14 11 M10 4 0,821
32 90 120 14 14 M12 4 1,180
40 100 130 14 14 M12 4 1,390
50 110 140 14 14 M12 4 1,620
65 130 160 14 14 M12 4 2,140
80 150 190 16 18 M16 4 3,430
100 170 210 16 18 M16 4 4,220
125 200 240 18 18 M16 8 6,100
150 225 265 18 18 M16 8 7,510
200 280 320 20 18 M16 8 12,300
250 335 375 22 18 M16 12 18,500
300 395 440 22 22 M20 12 25,500
350 445 490 22 22 M20 12 31,800
400 495 540 22 22 M20 16 38,500
450 550 595 24 22 M20 16 51,200
500 600 645 24 22 M20 20 60,100
600 705 755 30 26 M24 20 103,000
700 810 860 40 26 M24 24 178,000
800 920 975 44 30 M27 24 252,000
900 1020 1075 48 30 M27 24 336,000
1000 1120 1175 52 30 M27 28 435,000
1200 1340 1405 60 33 M30 32 717,000
1400 1560 1630 68 36 M33 36 1.094,000
1600 1760 1830 76 36 M33 40 1.545,000
1800 1970 2045 84 39 M36 44 2.131,000
2000 2180 2265 92 42 M39 48 2.862,000

BLIND FLANGE DIMENSIONS PN 10

EN 1092-1 Type 05

Flange DN
Nominal Diameter
Flange Stud Bolts Flange Weight
k D b d2 Thread Bolt holes KG
200 295 340 24 22 M20 8 16,500
250 350 395 26 22 M20 12 24,100
300 400 445 26 22 M20 12 30,800
350 460 505 26 22 M20 16 39,600
400 515 565 26 26 M24 16 49,400
450 565 615 28 26 M24 20 63,000
500 620 670 28 26 M24 20 75,200
600 725 780 34 30 M27 20 124,000
700 840 895 38 30 M27 24 183,000
800 950 1015 48 33 M30 24 297,000
900 1050 1115 50 33 M30 28 374,000
1000 1160 1230 54 36 M33 28 492,000
1200 1380 1455 66 39 M36 32 842,000

 

BLIND FLANGE DIMENSIONS PN 16

EN 1092-1 Type 05

Flange DN
Nominal Diameter
Flange Stud Bolts Flange Weight
k D b d2 Thread Bolt holes KG
15 65 95 16 14 M12 4 0,813
20 75 105 18 14 M12 4 1,140
25 85 115 18 14 M12 4 1,380
32 100 140 18 18 M16 4 2,030
40 110 150 18 18 M16 4 2,350
50 125 165 18 18 M16 4 2,880
65 145 185 18 18 M16 4 3,643
80 160 200 20 18 M16 8 4,610
100 180 220 20 18 M16 8 5,650
125 210 250 22 18 M16 8 8,130
150 240 285 22 22 M20 8 10,500
200 295 340 24 22 M20 12 16,200
250 355 405 26 26 M24 12 25,000
300 410 460 28 26 M24 12 35,100
350 470 520 30 26 M24 16 48,000
400 525 580 32 30 M27 16 63,500
450 585 640 40 30 M27 20 96,600
500 650 715 44 33 M30 20 133,000
600 770 840 54 36 M33 20 226,000
700 840 910 58 36 M33 24 285,000
800 950 1025 62 39 M36 24 388,000
900 1050 1125 64 39 M36 28 483,000
1000 1170 1255 68 42 M39 28 640,000
1-Blind flange, 2-Stud Bolt, 3-Gasket, 4-Other flange

1-Blind flange, 2-Stud Bolt, 3-Gasket, 4-Other flange



Size: 1/2″ (15 NB) to 48″ (1200NB)

Standards: ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings

Pressure Ratings: Class 150, Class 300, Class 400, Class 600, Class 900, Class1500, Class 2500 | PN6, PN10, PN16, PN25, PN40, PN64 etc.

Carbon Steel Blind Flanges: ASTM A105/A105N, A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, A694 F42, F46, F48, F50, F52, F56, F60, F65, F70, A516.60, 65, 70 (Spectacle Blind Flange, Spacer Ring/Spade Flange), Steel RST37.2, C22.8

Stainless Steel Blind Flanges: ASTM A182 F202, F304/304L/304H, F316/316L, F316H, F316TI, F310, F321, F904L
Alloy Steel Blind Flanges: ASTM A182 F1, F5, F9, F11, F22, F91

Special Alloy Blind Flanges: Duplex, Super Duplex, Nickel Alloys

Flange Face Type: Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Coating/Surface Treatment: Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized
Value Added Services: CNC Machining, Customised Flanges

FORM
Slip On - SORF, Weld Neck - WNRF, Socket Weld - SWRF, BLIND - BLRF, Lapped Joint, Screwed, Long Weld Neck, Reducing, Spectacle, Ring Joint, Drowing

Blind Flanges

Our range of Blind Flanges and NPT flanges are manufactured as per international quality standards and is available in various dimensions. Our Blind Flanges are used with their main advantage being that they can be used for extraordinary circumstances and in highly volatile areas where welding is hazardous. Our NPT Blind Flanges can attached to the pipe without welding. These are low maintenance Blind Flanges made from high quality raw material, that are available at fair prices. We ensure timely delivery of the products within stipulated time frame.

Stainless Steel : Blind Flanges ASTM A 182, Blind Flanges A 240
Forged Flanges Grade : : ANSI B 16.5

Blind Flanges F 304
Blind Flanges 304L
Blind Flanges 304H
Blind Flanges 316
Blind Flanges 316L
Blind Flanges 316Ti
Blind Flanges 310
Blind Flanges 310S
Blind Flanges 321
Blind Flanges 321H
Blind Flanges 317
Blind Flanges 347
Blind Flanges 347H
Blind Flanges 904L

PRESSURE CLASS 
Blind Flanges 150 LBS 
Blind Flanges 300 LBS
Blind Flanges 400 LBS 
Blind Flanges 600 LBS
Blind Flanges 900 LBS 
Blind Flanges 1500 LBS 
Blind Flanges 2500 LBS

ANSI B 16.5 Class 150 lb - Blind Flanges

The wide range of ANSI B 150 Class- Blind Flanges offered by us is in conformation with international quality standards. These are designed as per the standards set by various national and international authorities and are manufactured using high grade steel. Our range of flanges is highly acknowledged in the domestic and global markets, due to features such as application specific design and corrosion resistance.

Blind Flanges ::

Blind Flanges are widely used in special circumstances with their main advantage being that they can be attached to the pipe without welding. We are one of the leading manufacturer and supplier of steel threaded flanges in India, we can supply stainless steel, carbon steel and nickel alloy threaded flanges.

ANSI B 16.5 Class 300 - Blind Flanges
We are a leading manufacturer and exporter of a wide range of ANSI B 16.5 Class 300 - Blind Flanges, which has dimensions that corresponds to the inside diameter of the pipe and has a standard wall thickness of 40S. The weights of these flanges are based as per the clients’ requirements.

ANSI B 16.5 Class 600 - Blind Flanges
We have with us a range of ANSI B 16.5 Class 600 - Blind Flanges that are manufactured using high grade steel. These flanges are suitable to be used in low pressure services at ambient temperature. Designed using advanced technology, our range is widely appreciated for dimensional accuracy, corrosion resistance and high durability. Further, we also make sure that these flanges meet the international quality standards.

ANSI B 2500 Class - Blind Flanges
Another range of threaded flanges offered by us is ANSI B 2500 Class- Blind Flanges. These conform to ASME B1. 20.1 NTP threads, the only exceptions are small male and female plain face threaded flanges which use NPSL locknut threads. The flanges offered by us are offered in numerous specifications and can be further customized as per the requirements of our clients.

ANSI B 16.5 Class 300 Blind Flanges
The ANSI B 300 Class Blind Flanges offered by us conforms to the ASME B1. 20.1 NTP threads. Designed as per the industry established parameters, these are fabricated using high grade raw material. These flanges are counter-bored and are chamfered to the counter bore at an angle of 450 (approx). Our range of threaded flanges finds application in numerous industries and is known for optimum performance and durability.

DIMENSIONS ----- blind flanges asme b16.5 dimensions , blind flanges ansi b16.5 dimensions,

Blind Flanges Class 150LB

Blind forged flanges of class 150LB

Standard ASME B16.5
Core Material Carbon steel and stainless steel
Connecting Finish Stock finish, spiral serration (or phonographic), concentric serration and smooth surface
blind flanges class 150lb
Size
inch
D
mm
G
mm
t
mm
1/2 89 35.1 11.2
3/4 99 42.9 12.7
1 108 50.8 14.2
117 63.5 15.7
127 73.2 17.5
2 152 91.9 19.1
178 104.6 22.4
3 191 127.0 23.9
216 139.7 23.9
4 229 157.2 23.9
5 254 185.7 23.9
6 279 215.9 25.4
8 343 269.7 28.4
10 406 323.9 30.2
12 483 381.0 31.8
14 533 412.8 35.1
16 597 469.9 36.6
18 635 533.4 39.6
20 699 584.2 42.9
24 813 692.2 47.8
Size Drilling Bolting
inch Bolt circle
Ø
mm
Qty
of
holes
Holes
Ø
mm
Bolt
Ø
inch
Length
mach bolt
(RF)
Length
stud bolt 
(RF)
Length
stud bolt
(RJ)
1/2 60.5 4 15.7 1/2 50.8 57.2 -
3/4 69.9 4 15.7 1/2 50.8 63.5 -
1 79.2 4 15.7 1/2 57.2 63.5 76.2
88.9 4 15.7 1/2 57.2 69.9 82.6
98.6 4 15.7 1/2 63.5 69.9 82.6
2 120.7 4 19.1 5/8 69.9 82.6 95.3
139.7 4 19.1 5/8 76.2 88.9 101.6
3 152.4 4 19.1 5/8 76.2 88.9 101.6
177.8 8 19.1 5/8 76.2 88.9 101.6
4 190.5 8 19.1 5/8 76.2 88.9 101.6
5 215.9 8 22.4 3/4 82.6 95.3 108.0
6 241.3 8 22.4 3/4 82.6 101.6 114.3
8 298.5 8 22.4 3/4 88.9 108.0 120.7
10 362.0 12 25.4 7/8 101.6 114.3 127.0
12 431.8 12 25.4 7/8 101.6 120.7 133.4
14 476.3 12 28.4 1 114.3 133.4 146.1
16 539.8 16 28.4 1 114.3 133.4 146.1
18 577.9 16 31.8 11/8 127.0 146.1 158.8
20 635.0 20 31.8 11/8 139.7 158.8 171.5
24 749.3 20 35.1 152.4 171.5 184.2

Blind Flanges Class 300LB

Blind forged flanges of class 300LB

Standard ASME B16.5
Core Material Carbon steel and stainless steel
Connecting Finish Stock finish, spiral serration (or phonographic), concentric serration and smooth surface
blind flanges class 300lb
Size
inch
D
mm
G
mm
t
mm
1/2 95 35.1 14.2
3/4 117 42.9 15.7
1 124 50.8 17.5
133 63.5 19.1
155 73.2 20.6
2 165 91.9 22.4
191 104.6 25.4
3 210 127.0 28.4
229 139.7 30.2
4 254 157.2 31.8
5 279 185.7 35.1
6 318 215.9 36.6
8 381 269.7 41.1
10 445 323.9 47.8
12 521 381.0 50.8
14 584 412.8 63.8
16 648 469.9 57.2
18 711 533.4 60.5
20 775 584.2 63.5
24 914 692.2 69.9
Size Drilling Bolting
inch Bolt circle
Ø
mm
Qty
of
holes
Holes
Ø
mm
Bolt
Ø
inch
Length
mach bolt
(RF)
Length
stud bolt 
(RF)
Length
stud bolt
(RJ)
1/2 66.5 4 15.7 1/2 57.2 63.5 76.2
3/4 82.6 4 19.1 5/8 63.5 76.2 88.9
1 88.9 4 19.1 5/8 63.5 76.2 88.9
98.6 4 19.1 5/8 69.9 82.6 95.3
114.3 4 22.4 3/4 76.2 88.9 101.6
2 127.0 8 19.1 5/8 76.2 88.9 101.6
149.4 8 22.4 3/4 82.6 101.6 114.3
3 168.1 8 22.4 3/4 88.9 108.0 120.7
184.2 8 22.4 3/4 95.3 108.0 127.0
4 200.2 8 22.4 3/4 95.3 114.3 127.0
5 235.0 8 22.4 3/4 108.0 120.7 133.4
6 269.7 12 22.4 3/4 108.0 120.7 139.7
8 330.2 12 25.4 7/8 120.7 139.7 152.4
10 387.4 16 28.4 1 139.7 158.8 171.5
12 450.9 16 31.8 11/8 146.1 171.5 184.2
14 514.4 20 31.8 11/8 158.8 177.8 190.5
16 571.5 20 35.1 165.1 190.5 203.2
18 628.7 24 35.1 171.5 196.9 209.6
20 685.8 24 35.1 184.2 203.2 222.3
24 812.8 24 41.1 203.2 228.6 254.0

Blind Flanges Class 600LB

Blind forged flanges of class 600LB

Standard ASME B16.5
Core Material Carbon steel and stainless steel
Connecting Finish Stock finish, spiral serration (or phonographic), concentric serration and smooth surface
blind flanges class 600lb
Size
inch
D
mm
G
mm
t
mm
1/2 95 35.1 14.2
3/4 117 42.9 15.7
1 124 50.8 17.5
133 63.5 20.6
155 73.2 22.4
2 165 91.9 25.4
191 104.6 28.4
3 210 127.0 31.8
229 139.7 35.1
4 273 157.2 38.1
5 330 185.7 44.5
6 356 215.9 47.8
8 419 269.7 55.6
10 508 323.9 63.5
12 559 381.0 66.5
14 603 412.8 69.9
16 686 469.9 76.2
18 743 533.4 82.6
20 813 584.2 88.9
24 940 692.2 101.6
Size Drilling Bolting
inch Bolt circle
Ø
mm
Qty
of
holes
Holes
Ø
mm
Bolt
Ø
inch
Length
mach bolt
(RF)
Length
stud bolt 
(RF)
Length
stud bolt
(RJ)
1/2 66.5 4 15.7 1/2 76.2 69.9 76.2
3/4 82.6 4 19.1 5/8 88.9 82.6 88.9
1 88.9 4 19.1 5/8 88.9 82.6 88.9
98.6 4 19.1 5/8 95.3 88.9 95.3
114.3 4 22.4 3/4 108.0 101.6 108.0
2 127.0 8 19.1 5/8 108.0 101.6 108.0
149.4 8 22.4 3/4 120.7 114.3 120.7
3 168.1 8 22.4 3/4 127.0 120.7 127.0
184.2 8 25.4 7/8 139.7 133.4 139.7
4 215.9 8 25.4 7/8 146.1 139.7 146.1
5 266.7 8 28.4 1 165.1 158.8 165.1
6 292.1 12 28.4 1 171.5 165.1 171.5
8 349.3 12 31.8 11/8 190.5 184.2 196.9
10 431.8 16 35.1 215.9 209.6 215.9
12 489.0 20 35.1 222.3 215.9 222.3
14 527.1 20 38.1 13/8 235.0 228.6 235.0
16 603.3 20 41.1 254.0 247.7 254.0
18 654.1 20 44.5 15/8 273.1 266.7 273.1
20 723.9 24 44.5 15/8 285.8 279.4 292.1
24 838.2 24 50.8 17/8 330.2 323.9 336.6

Blind Flanges Class 900LB

Blind forged flanges of class 900LB

Standard ASME B16.5
Core Material Carbon steel and stainless steel
Connecting Finish Stock finish, spiral serration (or phonographic), concentric serration and smooth surface
blind flanges class 900lb
Size
inch
D
mm
G
mm
t
mm
1/2 121 35.1 22.4
3/4 130 42.9 25.4
1 149 50.8 28.4
159 63.5 28.4
178 73.2 31.8
2 216 91.9 38.1
244 104.6 41.1
3 241 127.0 38.1
4 292 157.2 44.5
5 349 185.7 50.8
6 381 215.9 55.6
8 470 269.7 63.5
10 546 323.9 69.9
12 610 381.0 79.2
14 641 412.8 85.9
16 705 469.9 88.9
18 787 533.4 101.6
20 857 584.2 108.0
24 1041 692.2 139.7
Size Drilling Bolting
inch Bolt circle
Ø
mm
Qty
of
holes
Holes
Ø
mm
Bolt
Ø
inch
Length
mach bolt
(RF)
Length
stud bolt 
(RF)
Length
stud bolt
(RJ)
1/2 82.6 4 22.4 3/4 108.0 101.6 108.0
3/4 88.9 4 22.4 3/4 114.3 108.0 114.3
1 101.6 4 25.4 7/8 127.0 120.7 127.0
111.3 4 25.4 7/8 127.0 120.7 127.0
124.0 4 28.4 1 139.7 133.4 139.7
2 165.1 8 25.4 7/8 146.1 139.7 146.1
190.5 8 28.4 1 158.8 152.4 158.8
3 190.5 8 25.4 7/8 146.1 139.7 146.1
4 235.0 8 31.8 11/8 171.5 165.1 171.5
5 279.4 8 35.1 190.5 184.2 190.5
6 317.5 12 31.8 11/8 190.5 184.2 196.9
8 393.7 12 38.1 13/8 222.3 215.9 222.3
10 469.9 16 38.1 13/8 235.0 228.6 235.0
12 533.4 20 38.1 13/8 254.0 247.7 254.0
14 558.8 20 41.1 273.1 266.7 292.1
16 616.0 20 44.5 15/8 285.8 279.4 298.5
18 685.8 20 50.8 17/8 323.9 317.5 333.6
20 749.3 20 53.8 2 349.3 342.9 362.0
24 901.7 20 66.5 438.2 431.8 457.2

 

Our Product Range
Slip On Flanges Welding Neck Flanges Long Welding Neck Flanges Blind Flanges
Lap Joint Flanges Socket Weld Flanges Threaded Flanges Collar Flanges
Flat Face Flanges Raised Face Flanges Ring Type Joint Flanges Spectacle Blind Flanges
Plate Flanges Flat Flanges Orifice Flanges Stainless Steel 304 Flanges
Stainless Steel 304L Flanges Stainless Steel 316L Flanges Stainless Steel 317 Flanges Stainless Steel 317L Flanges
API flange ASME flange BS Flange GOST Flange
DIN Flange AWWA Flange Flanges (ANSI) Flanges (ISO - TS)
Australia Flange AS2129 Japanese Flange JIS2220 ANSI B16.5 / B16.47 / B16.48 / B16.36 Flanges UNI Flange