ASME B16.47 Backing Ring Flanges Manufacturers and Suppliers:
A Backup Flange is a type of flange that is used in piping systems to provide support and reinforcement for a Stub End. It is typically made of Ductile Iron and is designed to fit over the outside diameter of the Stub End.
The dimensions of a Backup Flange are similar to those of a standard flange, with bolt holes spaced evenly around the circumference. However, the inside diameter of the Backup Flange is slightly larger than the outside diameter of the Stub End to allow for a gap between the two components.
ISO Approved ANSI B16.5 Class 150, Class 300, Class 600, Class 900, Class 1500, Class 2500 Backing Ring Flanges Manufacturer In India, BS10 Backing Ring Flange, AWWA C207 Backing Ring Flange, EN 1092-1 Backing Ring Flange, Series A and Series B Backing Ring Flange Dimensions Chart, Tolerances, Weight Chart, Thickness Chart, Cad Drawing Backing Ring Flange
ADCO Forge and Fittings is a well-known manufacturer of Backup Flanges and other piping components. We have a reputation for producing high-quality products that meet or exceed industry standards. Backup Flanges are made from premium-grade materials, including Ductile Iron, and are available in a variety of sizes and configurations to suit different piping applications. A team of experienced engineers and technicians who can provide technical support and assistance with product selection and customization.
Compared to a Lap Joint Flange, which is also used with a Stub End, a Backup Flange provides greater reinforcement due to its larger size and heavier construction. Additionally, a Backup Flange is easier to install since it does not require the use of a lap joint stub end.
Overall, a Backup Flange is an effective and reliable solution for supporting and reinforcing Stub Ends in piping systems.
Backing Ring Flanges Standard Specifications
Standards
ANSI B16.5, ANSI B16.47, ANSI B16.36, ANSI B16.48, BS 4504, EN1092, UNI 2277/2278, DIN, JIS, SABS1123, GOST-12820
Form
SORF, WNRF, BLRF, SWRF, LAP Joint, Threaded, Reducing, Spectacle
BS/JIS
BS4504 , BS4504, BS1560, BS10,5K, 10K, 16K, 20K, 30K, 40K, 63K
Face Type
Flat Face (FF), Raise Face (RF), Ring Joint (RJT)
Dimensions
ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
Size Range (inches)
From ½” (15 NB) to 48″ (1200NB)
Class
150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40.
Connection Type
RTJ, Lap-Joint Face, Raised Face, Flat Face, Large Male-Female, Small Male-Female, Large, Tongue & Groove, Small Tongue & Groove
Backing Ring Flanges in Stainless Steel 304/304L, SS 316/316L, SS 904L, Alloy 20, Carbon Steel, Nickel 200, Monel, Inconel, Hastelloy C22, Duplex Steel 2205, Titanium, Copper Nickel, SMO 254, Aluminum, Galvanized, MS Backing Ring Flange. Get best Price List.
ASME B16.47 Flanges Types
If you are looking for ASME B16.47 Pipe Flanges types, weight chart, size chart, tolerance, and dimensions with drawings then kindly click the below-mentioned forms of Flanges as per your requirements to get the complete details. For the quick quote / price list click here.
ASME B16.5 Backing Ring Flanges Material Grades
| Stainless Steel Backing Ring Flange: | ASTM A182 F304, F304H, F304L, F304N, F304LN, F309H, F310, F310H, F310MoLN, F316, F316H, F316L, F316N, F316LN, F316Ti, F317, F317L, F321, F321H, F347, F347H, F348, F348H, 904L |
|---|---|
| Carbon Steel Backing Ring Flange: | ASTM A105 A53, A106, API 5L |
| Low Temperature Carbon Steel Backing Ring Flange: | ASTM A350 LF1, LF2, LF3 |
| High Yield Carbon Steel Backing Ring Flange: | ASTM A694 F42, F52, F60, F65 |
| Alloy Steel Backing Ring Flange: | ASTM A182 F5, F9, F11, F22, F1, F5/F5a, F91 |
| Duplex & Super Duplex Backing Ring Flange: | ASTM A182, ASME SA182 Duplex 2205 (UNS S31803 – UNS S32205), Super Duplex 2507 (UNS S32750 – UNS S32760) |
| Nickel Alloy Backing Ring Flange: | ASTM / ASME SB B160 / B166 / B564 / B425/ B564 UNS 2200 ( NICKEL 200 ), UNS 2201 (NICKEL 201 ), UNS 4400 (MONEL 400 ), UNS 8020 ( ALLOY 20 / 20 CB 3, UNS 8825 INCONEL (825), UNS 6600 (INCONEL 600 ), UNS 6601 ( INCONEL 601 ), UNS 6625 (INCONEL 625), UNS 10276 ( HASTELLOY C276 ), Cupro Nickel 90/10 ( C70600, 2.0872 ), 70/30 ( C71500, 2.0882) |
| Other Steel Backing Ring Flange: | ASTM B381 Titanium Grade 2 ( R50400, 3.7035 ), Titanium Grade 5 ( N56400, 3.7165 ), ASTM B462 Alloy 20, ASTM A182 SMO 254/AL-6XN ( S31254, 1.4547 ), AISI 4130 ( G41300, 1.7218 ) |
ANSI B16.5 Backing Ring Flanges Dimensions & Weight Chart
ASME B16.5 Backing Ring Flange - Dimensions & Weight Chart
Dimensions & Weight of Table D/E Backing Ring Flanges
| Inch n.b | mm o.d. | nominal | pcd (P) | od (A) | thickness (B) | bolt (L) | no. bolts | Approx Wt. (kg) |
|---|---|---|---|---|---|---|---|---|
| 1/2″ | 20 | 15 | 65 | 95 | 7 | 1/2″ | 4 | 0.25 |
| 3/4″ | 25 | 20 | 73 | 102 | 7 | 1/2″ | 4 | 0.35 |
| 1″ | 32 | 25 | 83 | 114 | 8 | 1/2″ | 4 | 0.45 |
| 11/4″ | 40 | 32 | 87 | 121 | 8 | 1/2″ | 4 | 0.70 |
| 11/2″ | 50 | 40 | 98 | 133 | 8 | 1/2″ | 4 | 0.85 |
| 2″ | 63 | 50 | 114 | 152 | 8 | 5/8″ | 4 | 1.00 |
| 21/2″ | 75 | 65 | 127 | 165 | 8 | 5/8″ | 4 | 1.15 |
| 3″ | 90 | 80 | 146 | 184 | 10 | 5/8″ | 4 | 1.30 |
| 4″ | 110 | 100 | 178 | 216 | 12 | 5/8″ | 8 | 1.70 |
| 5″ | 140 | 125 | 210 | 254 | 12 | 5/8″ | 8 | 2.20 |
| 6″ | 160 | 150 | 235 | 279 | 12 | 3/4″ | 8 | 2.45 |
| 8″ | 225 | 200 | 292 | 337 | 12 | 3/4″ | 8 | 3.10 |
| 10″ | 280 | 250 | 356 | 406 | 15 | 3/4″ | 12 | 5.45 |
| 12″ | 315 | 300 | 406 | 457 | 20 | 7/8″ | 12 | 9.60 |
| 14″ | 355 | 350 | 470 | 527 | 20 | 7/8″ | 12 | 12.80 |
| 16″ | 400 | 400 | 521 | 578 | 22 | 1″ | 12 | 18.10 |
Dimensions & Weight of AS 4087 Backing Ring Flange
| Dimension | OD-D | ID-A | Thickness-T | PCD-K | Bolt Holes and Diam | Bolt Size | Weight |
|---|---|---|---|---|---|---|---|
| 63 | 150 | 78 | 11 | 114 | 4×18 | M16 | 1.01 |
| 75 | 165 | 92 | 11 | 127 | 4×18 | M16 | 1.20 |
| 90 | 185 | 108 | 11 | 146 | 4×18 | M16 | 1.45 |
| 110 | 215 | 128 | 13 | 178 | 4×18 | M16 | 2.30 |
| 125 | 215 | 135 | 13 | 178 | 8×18 | M16 | 2.00 |
| 160 | 280 | 178 | 13 | 235 | 8×18 | M16 | 3.50 |
| 180 | 280 | 188 | 13 | 235 | 8×18 | M16 | 6.30 |
| 200 | 335 | 235 | 19 | 292 | 8×18 | M16 | 6.00 |
| 225/200* | 335 | 240 | 19 | 292 | 8×18 | M16 | 6.20 |
| 225 | 370 | 238 | 19 | 324 | 8×18 | M16 | 8.90 |
| 250 | 405 | 288 | 19 | 356 | 8×22 | M20 | 8.80 |
| 280 | 405 | 294 | 19 | 356 | 8×22 | M20 | 8.20 |
| 315 | 455 | 338 | 23 | 406 | 12×22 | M20 | 11.70 |
| 355 | 525 | 376 | 30 | 470 | 12×26 | M24 | 23.40 |
| 400 | 580 | 430 | 30 | 521 | 12×26 | M24 | 26.50 |
| 450 | 640 | 470 | 30 | 584 | 12×26 | M24 | 31.70 |
| 500 | 705 | 533 | 38 | 641 | 16×26 | M24 | 47.40 |
| 630 | 825 | 645 | 48 | 756 | 16×30 | M27 | 68.30 |
| 710 | 910 | 740 | 56 | 845 | 20×30 | M27 | 88.00 |
| 800 | 1060 | 843 | 56 | 984 | 20×36 | M33 | 137.00 |
| 900 | 1175 | 947 | 66 | 1092 | 24×36 | M33 | 184.00 |
| 1000 | 1255 | 1050 | 66 | 1175 | 24×36 | M33 | 178.00 |
Dimensions & Weight of PN10 Backing Ring Flange
| Inch n.b | mm o.d. | nominal | pcd (P) | od (A) | thickness (B) | bolt (L) | no. bolts | Approx Wt. (kg) |
|---|---|---|---|---|---|---|---|---|
| 1/2″ | 20 | 15 | 65 | 95 | 7 | M12 | 4 | 0.25 |
| 3/4″ | 25 | 20 | 75 | 105 | 7 | M12 | 4 | 0.35 |
| 1″ | 32 | 25 | 85 | 115 | 8 | M12 | 4 | 0.45 |
| 11/4″ | 40 | 32 | 100 | 140 | 8 | M16 | 4 | 0.70 |
| 11/2″ | 50 | 40 | 110 | 150 | 8 | M16 | 4 | 0.85 |
| 2″ | 63 | 50 | 125 | 165 | 8 | M16 | 4 | 1.00 |
| 21/2″ | 75 | 65 | 145 | 185 | 8 | M16 | 4 | 1.15 |
| 3″ | 90 | 80 | 160 | 200 | 10 | M16 | 8 | 1.30 |
| 4″ | 110 | 100 | 180 | 220 | 12 | M16 | 8 | 1.70 |
| 5″ | 140 | 125 | 210 | 240 | 12 | M16 | 8 | 2.20 |
| 6″ | 160 | 150 | 240 | 285 | 12 | M20 | 8 | 2.45 |
| 8″ | 225 | 200 | 295 | 340 | 12 | M20 | 8 | 3.10 |
| 10″ | 280 | 250 | 350 | 395 | 15 | M20 | 12 | 5.45 |
| 12″ | 315 | 300 | 400 | 445 | 20 | M20 | 12 | 9.60 |
| 14″ | 355 | 350 | 460 | 520 | 20 | M22 | 16 | 12.80 |
| 16″ | 400 | 400 | 515 | 580 | 22 | M22 | 16 | 18.10 |
Dimensions & Weight of PN16 Backing Ring Flange
| Inch n.b | mm o.d. | nominal | pcd (P) | od (A) | thickness (B) | bolt (L) | no. bolts | Approx Wt. (kg) |
|---|---|---|---|---|---|---|---|---|
| 1/2″ | 20 | 15 | 65 | 95 | 7 | M12 | 4 | 0.25 |
| 3/4″ | 25 | 20 | 75 | 105 | 7 | M12 | 4 | 0.35 |
| 1″ | 32 | 25 | 85 | 115 | 8 | M12 | 4 | 0.45 |
| 11/4″ | 40 | 32 | 100 | 140 | 8 | M16 | 4 | 0.70 |
| 11/2″ | 50 | 40 | 110 | 150 | 8 | M16 | 4 | 0.85 |
| 2″ | 63 | 50 | 125 | 165 | 8 | M16 | 4 | 1.00 |
| 21/2″ | 75 | 65 | 145 | 185 | 8 | M16 | 4 | 1.15 |
| 3″ | 90 | 80 | 160 | 200 | 10 | M16 | 8 | 1.30 |
| 4″ | 110 | 100 | 180 | 220 | 12 | M16 | 8 | 1.70 |
| 5″ | 140 | 125 | 210 | 240 | 12 | M16 | 8 | 2.20 |
| 6″ | 160 | 150 | 240 | 285 | 12 | M20 | 8 | 2.45 |
| 8″ | 225 | 200 | 295 | 340 | 12 | M20 | 12 | 3.10 |
| 10″ | 280 | 250 | 355 | 405 | 15 | M24 | 12 | 5.45 |
| 12″ | 315 | 300 | 410 | 460 | 20 | M24 | 12 | 9.60 |
| 14″ | 355 | 350 | 470 | 520 | 20 | M30 | 16 | 12.80 |
| 16″ | 400 | 400 | 525 | 580 | 22 | M30 | 16 | 18.10 |
Dimensions & Weight of ASA 150 Backing Ring Flange
| Inch n.b | mm o.d. | nominal | pcd (P) | od (A) | thickness (B) | bolt (L) | no. bolts | Approx Wt. (kg) |
|---|---|---|---|---|---|---|---|---|
| 1/2″ | 20 | 15 | 65 | 95 | 7 | 1/2″ | 4 | 0.25 |
| 3/4″ | 25 | 20 | 73 | 102 | 7 | 1/2″ | 4 | 0.35 |
| 1″ | 32 | 25 | 83 | 114 | 8 | 1/2″ | 4 | 0.45 |
| 11/4″ | 40 | 32 | 87 | 121 | 8 | 1/2″ | 4 | 0.70 |
| 11/2″ | 50 | 40 | 98 | 133 | 8 | 1/2″ | 4 | 0.85 |
| 2″ | 63 | 50 | 114 | 152 | 8 | 5/8″ | 4 | 1.00 |
| 21/2″ | 75 | 65 | 127 | 165 | 8 | 5/8″ | 4 | 1.15 |
| 3″ | 90 | 80 | 146 | 184 | 10 | 5/8″ | 4 | 1.30 |
| 4″ | 110 | 100 | 178 | 216 | 12 | 5/8″ | 8 | 1.70 |
| 5″ | 140 | 125 | 210 | 254 | 12 | 5/8″ | 8 | 2.20 |
| 6″ | 160 | 150 | 235 | 279 | 12 | 3/4″ | 8 | 2.45 |
| 8″ | 225 | 200 | 292 | 337 | 12 | 3/4″ | 8 | 3.10 |
| 10″ | 280 | 250 | 356 | 406 | 15 | 3/4″ | 12 | 5.45 |
| 12″ | 315 | 300 | 406 | 457 | 20 | 7/8″ | 12 | 9.60 |
| 14″ | 355 | 350 | 470 | 527 | 20 | 7/8″ | 12 | 12.80 |
| 16″ | 400 | 400 | 521 | 578 | 22 | 1″ | 12 | 18.10 |
Dimensions & Weight of Ductile Iron Backup Flanges
| Nominal Size | Inside Diameter – AFR (ID) |
Inside Diameter – IPS (ID) |
Outside Diameter (OD) |
Thiickness (T) |
Bolt Circle (BC) |
Diameter Of Holes | No. of Bolt Holes | 45 Degree Bevel (B) |
Weight Each (lbs) |
|---|---|---|---|---|---|---|---|---|---|
| 1⁄2 | 0.90 | 3.50 | 0.50 | 2.38 | 0.625 | 4 | 0.250 | 1.0 | |
| 3⁄4 | 1.11 | 3.88 | 0.50 | 2.75 | 0.625 | 4 | 0.250 | 1.4 | |
| 1 | 1.75 | 1.38 | 4.25 | 0.50 | 3.13 | 0.625 | 4 | 0.250 | 1.7 |
| 11⁄4 | 2.00 | 1.72 | 4.63 | 0.50 | 3.50 | 0.625 | 4 | 0.250 | 1.8 |
| 11⁄2 | 2.25 | 1.97 | 5.00 | 0.50 | 3.88 | 0.625 | 4 | 0.250 | 2.0 |
| 2 | 2.80 | 2.46 | 6.00 | 0.50 | 4.75 | 0.750 | 4 | 0.250 | 3.0 |
| 21⁄2 | 3.31 | 2.97 | 7.00 | 0.50 | 5.50 | 0.750 | 4 | 0.250 | 3.9 |
| 3 | 3.94 | 3.60 | 7.50 | 0.50 | 6.00 | 0.750 | 4 | 0.250 | 4.0 |
| 4 | 4.94 | 4.60 | 9.00 | 0.56 | 7.50 | 0.750 | 8 | 0.250 | 6.5 |
| 5 | 6.10 | 5.69 | 10.00 | 0.63 | 8.50 | 0.875 | 8 | 0.250 | 7.0 |
| 6 | 7.20 | 6.75 | 11.00 | 0.63 | 9.50 | 0.875 | 8 | 0.250 | 8.0 |
| 8 | 9.25 | 8.75 | 13.50 | 0.63 | 11.75 | 0.875 | 8 | 0.312 | 11.5 |
| 10 | 11.44 | 10.95 | 16.00 | 0.63 | 14.25 | 1.000 | 12 | 0.312 | 15.0 |
| 12 | 13.44 | 12.95 | 19.00 | 0.75 | 17.00 | 1.000 | 12 | 0.312 | 26.0 |
| 14 | 14.81 | 14.20 | 21.00 | 0.75 | 18.75 | 1.125 | 12 | 0.312 | 34.0 |
| 16 | 16.91 | 16.20 | 23.50 | 0.75 | 21.25 | 1.125 | 16 | 0.375 | 37.0 |
| 18 | 18.91 | 18.20 | 25.00 | 0.88 | 22.75 | 1.250 | 16 | 0.375 | 42.0 |
| 20 | 20.91 | 20.25 | 27.50 | 0.88 | 25.00 | 1.250 | 20 | 0.375 | 51.0 |
| 24 | 24.91 | 24.25 | 32.00 | 1.00 | 29.50 | 1.375 | 20 | 0.375 | 76.0 |
| 30 | 30.91 | 30.25 | 38.75 | 1.00 | 36.00 | 1.375 | 28 | 0.500 | 104.0 |
| 36 | 36.91 | 36.25 | 46.00 | 1.13 | 42.75 | 1.625 | 32 | 0.500 | 150.0 |
| 42 | 42.91 | 42.28 | 53.00 | 1.25 | 49.50 | 1.625 | 36 | 0.500 | 208.0 |
| 48 | 48.91 | 48.28 | 59.50 | 1.25 | 56.00 | 1.625 | 44 | 0.500 | 246.0 |
MSS SP-44 Backing Ring Flanges Applications
Oil and Gas
Nuclear Power & Defence
Petrochemical
LNG
Desalination
Mining & Minerals
Myanmar, Nepal, Thailand, Vietnam, Philippines, Malaysia, Indonesia,
Singapore, Taiwan, Tasmania, Sri Lanka, Bangladesh, Bhutan, Cambodia,
Australia, New Zealand, Afghanistan, Tajikistan, Kyrgyzstan, Kazakhstan,
Uzbekistan, Turkmenistan, Iran, United Arab Emirates(UAE), Saudi Arabia,
Oman, Yemen, Iraq, Azerbaijan, Turkiye, Syria, Lebanon, Israel, Kenya,
Egypt, South Sudan, Eritrea, Djibouti, Ethiopia, Libya, Rwanda, Mali,
Niger, Chad, Central Africa Republic, Nigeria, Cameroon, Somalia, DRC,
Uganda, Tanzania, Angola, Zambia, Madagascar, Malawi, Namibia, Benin,
Zimbabwe, Botswana, Lesotho, South Africa, Algeria, Tunisia, Morocco,
Eswatini, Liberia, Sierra Leone, The Gambia, Senegal, Mozambique, Togo,
Mauritania, Burkina Faso, Ghana, Equatorial Guinea, Jordan, Timor-Leste,
Palestine, Laos, Armenia, Georgia, Maldives, Cyprus, Kuwait, Qatar, Peru,
Bahrain, Brunei, Finland, France, Germany, Ireland, Iceland, UK, US,
Greece, Hungary, Italy, Norway, Poland, Slovakia, Sweden, Canada, Fiji,
Romania, Cuba, Panama, Brazil, Colombia, Chile, Argentina, Venezuela,
Naypyidaw, Kathmandu, Bangkok, Hanoi, Manila, Kuala Lumpur, Jakarta, Tunis,
Jurong East, Taipei City, Hobart, Sri Jayawardenepura Kotte, Dhaka, Thimphu,
Phnom Penh, Canberra, Wellington, Kabul, Dushanbe, Bishkek, Astana, Abuja,
Tashkent, Ashgabat, Tehran, Abu Dhabi, Riyadh, Muscat, Sana’a, Baghdad, Pretoria,
Baku, Ankara, Damascus, Beirut, Jerusalem, Nairobi, Cairo, Juba, Asmara, Rabat,
Djibouti city, Addis Ababa, Tripoli, Kigali, Bamako, Niamey, N’Djamena, Bangui,
Yaoundé, Mogadishu, Kinshasa, Kampala, Dodoma, Luanda, Lusaka, Antananarivo,
Lilongwe, Windhoek, Porto-Novo, Harare, Gaborone, Maseru, Cape Town, Bloemfontein,
Algiers, Mbabane, Lobamba, Monrovia, Freetown, Banjul, Dakar, Maputo, Lomé, Dili,
Nouakchott, Ouagadougou, Accra, Malabo, Amman, Vientiane, Yerevan, Tbilisi, Rome,
Malé, Nicosia, Kuwait City, Doha, Lima, Manama, Bandar Seri Begawan, Paris,
Helsinki, Berlin, Dublin, Reykjavík, London, Washington D.C., Athens, Budapest,
Oslo, Warsaw, Bratislava, Stockholm, Ottawa, Suva, Bucharest, Havana, Panama City,
Brasília, Bogotá, Santiago, Buenos Aires, Caracas, Mumabi, Chennai, Bengaluru,
Kolkata, Hyderabad, Pune, Ahmedabad, Jaipur, Surat, Visakhapatnam, Indore, New Delhi
Lucknow, Nagpur, Kochi, Kanpur, Guwahati, Coimbatore, Noida, Ghaziabad, Patna
