ASME B16.36 Flanges

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ASME B16.36 Flanges

ASME B16.36 Orifice Flange, ASME B16.36 weld neck Flange, ASME B16.36 Socket Weld Flanges, ASME B16.36 slip on Flanges Supplier, ANSI B16.36 Flanges, ASME B16.36 Spectacle blind Flanges Manufacturer in India.

ASME B16.36 is a standard published by the American Society of Mechanical Engineers (ASME) that covers flanges for orifice flange assemblies. Orifice flange assemblies are used in piping systems to measure fluid flow rates by means of an orifice plate installed between two flanges.

ASME B16.36 flanges are designed to be used with orifice meters, which are devices used to measure the flow rate of fluids in a pipeline. These flanges are specifically designed to work with orifice plates, which are thin plates with a hole in the center that is installed in the pipeline. As fluid flows through the orifice plate, the pressure differential across the plate is measured to determine the flow rate of the fluid.

The ASME B16.36 standard covers flanges for orifice metering applications in sizes from NPS 1/2 through NPS 24. The flanges are available in three pressure ratings: Class 300, Class 400, and Class 600. The standard also specifies the dimensions, tolerances, materials, marking, and testing requirements for these flanges.

ASME B16.36 flanges are typically made from materials such as carbon steel, stainless steel, or alloy steel. They are available in various types, including weld neck, slip-on, threaded, and lap joint flanges.

Overall, ASME B16.36 flanges are a crucial component in orifice metering applications, and their compliance with the ASME standard ensures their reliability and durability in these critical applications.

ASME B16.36 Flanges, ASME B16.36 Class 150 Flanges Manufacturers and Suppliers

SpecificationsDimensionsWeight ChartApplications

ASME B16.36 Class 300 Flanges, Ready Stock of ASME B16.36 Socket Weld Flange, ANSI B16.36 Class 150 Flanges, Suppliers of ASME B16.36 Welding Neck Flange, ASME B16 36 Ring Type Joint Orifice Flange, Check Sizes And Dimensions Of ASME B16.36 Forged Flanges.

ASME B16.36 Flange Specifications

Size Range

1/2" (15 NB) to 48" (1200NB) DN10~DN5000

Class / Pressure Rating

150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.

Standards / Dimensions

ANSI/ASME B16.5, B16.36, B16.48, BS4504, BS 10, EN-1092, DIN, BS, GOST, MSS SP-44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605

Connection Type

Ring Joint Flange (RTJ), Flat Face Flange (FF), Raised Face Flange (RF), Male and Female Flange (M & F), Lap Joint Flange, Large and Small Tongue-and-Groove Flange (T & G)

ASME B16.36 Flanges Dimensions

ASME B16.36 Class 300 Orifice Weld Neck RF Flanges ASME B16.36 Class 600 Orifice Weld Neck RF Flanges
ASME B16.36 Class 900 Orifice Weld Neck RF Flanges ASME B16.36 Class 1500 Orifice Weld Neck RTJ Flanges
ASME B16.36 Class 2500 Orifice Weld Neck RF Flanges
ASME B16.36 CLASS 300 ORIFICE WELD NECK RF FLANGES DIMENSIONS AND TECHNICAL DRAWINGS
ASME B16.36 CLASS 300 orifice Weld Neck Flange with RF
NPS HUB DIA DIA RF OUT SIDE DIA MIN THK FLG HGT FLG HUB DIA DIA OF TAB
A R O T H X Tg
1 33.4 50.8 125 36.6 81 54 6.4
1½ 48.3 73.0 155 36.6 84 70 6.4
2 60.3 92.1 165 36.6 84 84 6.4
2½ 73.0 104.8 190 36.6 87 100 6.4
3 88.9 127.0 210 36.6 87 117 9.5
4 114.3 157.2 255 36.6 90 146 12.7
6 168.3 215.9 320 36.6 98 206 12.7
8 219.1 269.9 380 39.7 110 260 12.7
10 273.0 323.8 445 46.1 116 321 12.7
12 323.8 381.0 520 49.3 129 375 12.7
14 355.6 412.8 585 52.4 141 425 12.7
16 406.4 469.9 650 55.6 144 483 12.7
18 457.0 533.4 710 58.8 157 533 12.7
20 508.0 584.2 775 62.0 160 587 12.7
24 610.0 692.2 915 68.3 167 702 12.7
NPS BOLT CIRCLE NO OF BOLTS DIA OF HOLES DIA STUD BOLTS STUD BOLT LENGTH
1 88.9 4 11/16 5/8 125
1½ 114.3 4 13/16 3/4 135
2 127.0 8 11/16 5/8 125
2½ 149.2 8 13/16 3/4 135
3 168.3 8 13/16 3/4 135
4 200.0 8 13/16 3/4 135
6 269.9 12 7/8 3/4 135
8 330.2 12 1 7/8 145
10 387.4 16 1.1/8 1 165
12 450.8 16 1¼ 1.1/8 180
14 514.4 20 1¼ 1.1/8 185
16 571.5 20 1.3/8 1¼ 195
18 628.6 24 1.3/8 1¼ 205
20 685.8 24 1.3/8 1¼ 215
24 812.8 24 1.5/8 1½ 240
General Note:
  • Height of Raised Face (RF) in CLASS 300 is 2 mm.
  • All other dimensions are in accordance with ASME B16.5.
  • Dimensions are in millimeters, except for bolts and bolt holes.
  • Ring joint flanges larger than NPS 3 will require angular meter taps.
  • Bolt lengths for raised face flanges include allowance for orifice and gasket thickness of 6 mm (0.25 in.) for NPS 1 to NPS 12. Bolt lengths for ring-type joint flanges include allowance of 15 mm (0.62 in.) for NPS 1 to NPS 3.
  • Other NPT sizes may be furnished if required.
  • The length of the Stud Bolt does not include the height of the chamfers (points).
  • Bore (B) is to be specified by the purchaser.
ASME B16.36 CLASS 600 ORIFICE WELD NECK RF FLANGES DIMENSIONS AND TECHNICAL DRAWINGS
ASME B16.36 CLASS 600 orifice Weld Neck Flange with RF
NPS DIA
RF		 OUT
SIDE
DIA		 MIN
THK
FLG		 HGT
FLG		 HUB
DIA		 HUB
DIA		 DIA OF
TAB
R O T H X A Tg
1 50.8 125 36.6 81 54 33.5 6.4
1½ 73.0 155 36.6 84 70 48.3 6.4
2 92.1 165 36.6 84 84 60.3 6.4
2½ 104.8 190 36.6 87 100 73.0 6.4
3 127.0 210 36.6 87 117 88.9 9.5
4 157.2 275 38.1 102 152 114.3 12.7
6 215.9 355 47.7 117 222 168.3 12.7
8 269.9 420 55.6 133 273 219.1 12.7
10 323.8 510 63.5 152 343 273.0 12.7
12 381.0 560 66.7 156 400 323.8 12.7
14 412.8 605 69.9 165 432 355.6 12.7
16 469.9 685 76.2 178 495 406.4 12.7
18 533.4 745 82.6 184 546 457.2 12.7
20 584.2 815 88.9 190 610 508.0 12.7
24 692.2 940 101.6 203 718 609.6 12.7
NPS BOLT
CIRCLE		 NO OF
BOLTS		 DIA OF
HOLES		 DIA
STUD
BOLTS		 STUD
BOLT
LENGTH
1 88.9 4 11/16 5/8 125
1½ 114.3 4 13/16 3/4 135
2 127.0 8 11/16 5/8 125
2½ 149.2 8 13/16 3/4 135
3 168.3 8 13/16 3/4 135
4 215.9 8 1 7/8 150
6 292.1 12 1.1/8 1 180
8 349.2 12 1¼ 1.1/8 195
10 431.8 16 1.3/8 1¼ 220
12 489.0 20 1.3/8 1¼ 230
14 527.0 20 1½ 1.3/8 240
16 603.2 20 1.5/8 1½ 260
18 654.0 20 1¾ 1.5/8 280
20 723.9 24 1¾ 1.5/8 300
24 838.2 24 2 1.7/8 335

General Note:

  • Height of Raised Face (RF) in CLASS 600 is 2 mm at NPS 1 – NPS 3, and 7 mm at NPS 4 – NPS 24.
  • Dimensions are in millimeters, except for bolts and bolt holes.
  • Weld neck flanges NPS 3 and smaller are identical to Class 300 flanges except for bolting and may be used for such service.
  • Ring joint flange in NPS 24 will require an angular meter tap.
  • All other dimensions are in accordance with ASME B16.5.
  • Bolt lengths for raised face flanges include allowance for orifice and gasket thickness of 6 mm (0.25 in.) for NPS 1 to NPS 12. Bolt lengths for ring-type joint flanges include allowance of 15 mm (0.62 in.) for NPS 1 to NPS 3.
  • The length of the Stud Bolt does not include the height of the chamfers (points).
  • Bore (B) is to be specified by the purchaser.

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ASME B16.36 CLASS 900 ORIFICE WELD NECK RF FLANGES DIMENSIONS AND TECHNICAL DRAWINGS
ASME B16.36 CLASS 900 orifice Weld Neck Flange with RF
NPS DIA RF OUT SIDE DIA MIN THK FLG HGT FLG HUB DIA HUB DIA DIA OF TAB
R O T H X A Tg
1 50.8 125 36.6 81 54 33.5 6.4
1½ 73.0 155 36.6 84 70 48.3 6.4
2 92.1 165 36.6 84 84 60.3 6.4
2½ 104.8 190 36.6 87 100 73.0 6.4
3 127.0 240 38.1 102 127 88.9 9.5
4 157.2 290 44.5 114 159 114.3 12.7
6 215.9 380 55.6 140 235 168.3 12.7
8 269.9 470 63.5 162 298 219.1 12.7
10 323.8 545 69.9 184 368 273.0 12.7
12 381.0 610 79.4 200 419 323.8 12.7
14 412.8 640 85.8 213 451 355.6 12.7
16 469.9 705 88.9 216 508 406.4 12.7
18 533.4 785 101.6 229 565 457.2 12.7
20 584.2 855 108.0 248 622 508.0 12.7
24 692.2 1040 139.7 292 749 609.6 12.7
NPS BOLT CIRCLE NO OF BOLTS DIA OF HOLES DIA STUD BOLTS STUD BOLT LENGTH
1 88.9 4 11/16 5/8 125
1½ 114.3 4 13/16 3/4 135
2 127.0 8 11/16 5/8 125
2½ 149.2 8 13/16 3/4 135
3 190.5 8 1 7/8 150
4 235.0 8 1¼ 1.1/8 180
6 317.5 12 1¼ 1.1/8 195
8 393.7 12 1½ 1.3/8 230
10 469.9 16 1½ 1.3/8 240
12 533.4 20 1½ 1.3/8 260
14 558.8 20 1.5/8 1½ 280
16 616.0 20 1¾ 1.5/8 290
18 685.8 20 2 1.7/8 330
20 749.3 20 2.1/8 2 355
24 901.7 20 2 5/8 2½ 445
General Note:
  • Height of Raised Face (RF) in CLASS 900 is 7 mm.
  • Dimensions are in millimeters, except for bolts and bolt holes.
  • Ring joint flanges larger than NPS 12 will require angular meter taps.
  • All other dimensions are in accordance with ASME B16.5.
  • Bolt lengths for raised face flanges include allowance for orifice and gasket thickness of 6 mm (0.25 in.) for NPS 1 to NPS 12. Bolt lengths for ring-type joint flanges include allowance of 15 mm (0.62 in.) for NPS 1 to NPS 3.
  • Other NPT sizes may be furnished if required.
  • The length of the Stud Bolt does not include the height of the chamfers (points).
  • Bore (B) is to be specified by the purchaser.
ASME B16.36 CLASS 1500 ORIFICE WELD NECK RF FLANGES DIMENSIONS AND TECHNICAL DRAWINGS
ASME B16.36 CLASS 900 orifice Weld Neck Flange with RF
NPS DIA RF OUT SIDE DIA MIN THK FLG HGT FLG HUB DIA HUB DIA DIA OF TAB
R O T H X A Tg
1 50.8 150 38.1 83 52 33.5 6.4
1½ 73.0 180 38.1 89 70 48.3 6.4
2 92.1 215 38.1 102 105 60.3 6.4
2½ 104.8 245 41.3 105 124 73.0 6.4
3 127.0 265 47.7 117 133 88.9 9.5
4 157.2 310 54.0 124 162 114.3 12.7
6 215.9 395 82.6 171 229 168.3 12.7
8 269.9 485 92.1 213 292 219.1 12.7
10 323.8 585 108.0 254 368 273.0 12.7
12 381.0 675 123.9 283 451 323.8 12.7
14 412.8 750 133.4 298 495 355.6 12.7
16 469.9 825 146.1 311 552 406.4 12.7
18 533.4 915 162.0 327 597 457.2 12.7
20 584.2 985 177.8 356 641 508.0 12.7
24 692.2 1170 203.2 406 762 609.6 12.7
NPS BOLT CIRCLE NO OF BOLTS DIA OF HOLES DIA STUD BOLTS STUD BOLT LENGTH
1 101.6 4 1 7/8 150
1½ 123.8 4 1.1/8 1 160
2 165.1 8 1 7/8 150
2½ 190.5 8 1.1/8 1 165
3 203.2 8 1¼ 1.1/8 185
4 241.3 8 1.3/8 1¼ 205
6 317.5 12 1½ 1.3/8 265
8 393.7 12 1¾ 1.5/8 300
10 482.6 12 2 1.7/8 345
12 571.6 16 2.1/8 2 380
14 635.0 16 2 3/8 2¼ 415
16 704.8 16 2 5/8 2½ 450
18 774.7 16 2 7/8 2¾ 500
20 831.8 16 3.1/8 3 545
24 990.6 16 3.5/8 3½ 620
General Note:
  • Height of Raised Face (RF) in CLASS 1500 is 7 mm.
  • Dimensions are in millimeters, except for bolts and bolt holes.
  • Ring joint flanges larger than NPS 6 will require angular meter taps.
  • All other dimensions are in accordance with ASME B16.5.
  • Bolt lengths for raised face flanges include allowance for orifice and gasket thickness of 6 mm (0.25 in.) for NPS 1 to NPS 12. Bolt lengths for ring-type joint flanges include allowance of 15 mm (0.62 in.) for NPS 1 to NPS 3.
  • Other NPT sizes may be furnished if required.
  • The length of the Stud Bolt does not include the height of the chamfers (points).
  • Bore (B) is to be specified by the purchaser.
ASME B16.36 CLASS 2500 ORIFICE WELD NECK RF FLANGES DIMENSIONS AND TECHNICAL DRAWINGS
ASME B16.36 CLASS 2500 orifice Weld Neck Flange with RF
NPS DIA
RF		 OUT
SIDE
DIA		 MIN
THK
FLG		 HGT
FLG		 HUB
DIA		 HUB
DIA		 DIA OF
TAB
R O T H X A Tg
1 50.8 160 38.1 92 57 33.5 6.4
1½ 73.0 205 44.5 111 79 48.3 6.4
2 92.1 235 50.8 127 95 60.3 6.4
2½ 104.8 265 57.2 143 114 73.0 6.4
3 127.0 305 66.7 168 133 88.9 9.5
4 157.2 355 76.2 190 165 114.3 12.7
6 215.9 485 108.0 273 235 168.3 12.7
8 269.9 550 127.0 318 305 219.1 12.7
10 323.8 675 165.1 419 375 273.0 12.7
12 381.0 760 184.2 464 441 323.8 12.7
NPS BOLT
CIRCLE		 NO OF
BOLTS		 DIA OF
HOLES		 DIA
STUD
BOLTS		 STUD
BOLT
LENGTH
1 108.0 4 1 7/8 150
1½ 146.0 4 1¼ 1.1/8 180
2 171.4 8 1.1/8 1 185
2½ 196.8 8 1¼ 1.1/8 205
3 228.6 8 1.3/8 1¼ 230
4 273.0 8 1.5/8 1½ 260
6 368.3 8 2.1/8 2 350
8 438.2 12 2.1/8 2 385
10 539.8 12 2 5/8 2½ 490
12 619.1 12 2 7/8 2¾ 540

General Note:

  • Height of Raised Face (RF) in CLASS 2500 is 7 mm.
  • Dimensions are in millimeters, except for bolts and bolt holes.
  • Ring joint flanges larger than NPS 3 will require angular meter taps.
  • All other dimensions are in accordance with ASME B16.5.
  • Bolt lengths for raised face flanges include allowance for orifice and gasket thickness of 6 mm (0.25 in.) for NPS 1 to NPS 12. Bolt lengths for ring-type joint flanges include allowance of 15 mm (0.62 in.) for NPS 1 to NPS 3.
  • Other NPT sizes may be furnished if required.
  • The length of the Stud Bolt does not include the height of the chamfers (points).
  • Bore (B) is to be specified by the purchaser.

ASME B16.36 Flanges Weight Chart

ASME B16.36 Orifice Flange Weights by Pressure Class and Size
NPS Class 150 Class 300 Class 600 Class 900 Class 1500 Class 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 Class 1500 Weight 5 4 4 7 7 7
3/4″ 2 2 2 3 3 3 4 3 3 Class 1500 Weight 6 5 6 8 8 8
1″ 3 2 2 4 3 3 4 4 4 Class 1500 Weight 9 8 8 12 11 11
1 1/2″ 4 3 3 7 6 6 8 7 8 Class 1500 Weight 13 12 13 25 22 23
2″ 6 5 5 9 7 8 12 9 10 Class 1500 Weight 25 25 25 42 37 39
2 1/2″ 8 7 7 12 10 12 18 13 15 Class 1500 Weight 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

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ASME B16.36 Flanges Applications

Australia, Afghanistan, Algeria, Angola, Argentina, Armenia, Azerbaijan, Bahrain, Bangladesh, Benin,
Bhutan, Botswana, Brazil, Brunei, Burkina Faso, Cambodia, Cameroon, Canada, Central Africa Republic,
Chad, Chile, Colombia, Cuba, Cyprus, DRC, Djibouti, Egypt, Equatorial Guinea, Eritrea, Eswatini,
Ethiopia, Fiji, Finland, France, Georgia, Germany, Ghana, Greece, Hungary, Iceland, Indonesia, Iran,
Iraq, Ireland, Israel, Italy, Japan, Jordan, Kazakhstan, Kenya, Kuwait, Kyrgyzstan, Laos, Lebanon,
Lesotho, Liberia, Libya, Lithuania, Madagascar, Malawi, Malaysia, Maldives, Mali, Mexico, Morocco,
Mozambique, Mauritania, Myanmar, Namibia, Nepal, Netherlands, New Zealand, Nigeria, Norway, Oman,
Panama, Peru, Philippines, Poland, Portugal, Palestine, Qatar, Russia, Rwanda, Romania, Saudi Arabia,
Senegal, Sierra Leone, Singapore, Slovakia, Somalia, South Africa, South Korea, South Sudan, Spain,
Sri Lanka, Sweden, Switzerland, Syria, Taiwan, Tajikistan, Tanzania, Tasmania, Thailand, The Gambia,
Timor-Leste, Togo, Tunisia, Turkey, Turkiye, Turkmenistan, Uganda, Uzbekistan, United Arab Emirates (UAE),
United Kingdom (UK), United States (US), Venezuela, Vietnam, Yemen, Zambia, Zimbabwe

Abu Dhabi, Amsterdam, Abuja, Accra, Addis Ababa, Ahmedabad, Algiers, Amman, Ankara, Antananarivo,
Ashgabat, Asmara, Astana, Athens, Baghdad, Baku, Bamako, Bandar Seri Begawan, Bangkok, Bangui,
Banjul, Beirut, Bengaluru, Berlin, Bishkek, Bloemfontein, Bogotá, Bern, Brasília, Bratislava,
Bucharest, Budapest, Buenos Aires, Cairo, Canberra, Cape Town, Caracas, Chennai, Coimbatore, Dakar,
Damascus, Dhaka, Dili, Djibouti city, Dodoma, Doha, Dublin, Dushanbe, Freetown, Gaborone, Ghaziabad,
Guwahati, Hanoi, Harare, Havana, Helsinki, Hobart, Hyderabad, Indore, Jaipur, Jakarta, Jerusalem,
Juba, Jurong East, Kabul, Kampala, Kanpur, Kathmandu, Kigali, Kinshasa, Kochi, Kolkata, Kuala Lumpur,
Kuwait City, Lisbon, Lilongwe, Lima, Lobamba, Lomé, London, Luanda, Lucknow, Lusaka, Malabo, Madrid,
Malé, Mexico City, Manama, Moscow, Manila, Maputo, Maseru, Mbabane, Mogadishu, Monrovia, Mumabi,
Muscat, Nagpur, Nairobi, New Delhi, Niamey, Nicosia, Noida, Nouakchott, N’Djamena, Oslo, Ottawa,
Ouagadougou, Panama City, Paris, Patna, Phnom Penh, Porto-Novo, Pretoria, Pune, Rabat, Reykjavík,
Riyadh, Rome, Sana’a, Santiago, Sri Jayawardenepura Kotte, Stockholm, Seoul, Singapore, Surat,
Suva, Taipei City, Tashkent, Tokyo, Tbilisi, Tehran, Thimphu, Tripoli, Tunis, Vientiane, Vilnius,
Visakhapatnam, Warsaw, Washington D.C., Wellington, Windhoek, Yaoundé, Yerevan, Naypyidaw

ASME B16.36 Flanges Price

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