Long Weld Neck Flange ASME B16.47 / ANSI B16.5

Long Weld Neck Flange Manufacturers and Suppliers in India, ANSI B16.5 LWN Flange, ASME B16.47 RFLWN Flange, Dimensions, Weight Chart, Thickness Chart

Long weld neck flanges are a type of weld neck flange that have a long and tapered neck. The neck length of a long weld neck flange is typically about twice the diameter of the flange, and it is designed to provide a smooth transition from the flange to the pipe. The long neck also helps to distribute stresses more evenly across the flange and the pipe, making it a suitable choice for high-pressure and high-temperature applications.

Long weld neck flanges are commonly used in industries such as oil and gas, chemical processing, and power generation. They are also used in applications where there is a need for precise alignment of piping systems, such as in aerospace and automotive industries.

The long neck of the flange allows for a greater degree of flexibility in the design of piping systems, as it can be used to offset misalignments and accommodate thermal expansion and contraction. The long neck also allows for easy welding, as it provides a clear and unobstructed view of the weld joint.

Like other types of weld neck flanges, long weld neck flanges are available in a range of materials, including carbon steel, stainless steel, and various alloys. The choice of material will depend on the specific application and the requirements for strength, corrosion resistance, and other properties.

Long Weld Neck Flanges ASME B16.47 / ANSI B16.5

ASTM A105 Long Weld Neck Flange, Carbon Steel Long Forged Weld Neck Flanges, Galvanized Long Weld Neck Nozzle, Inconel 600 Heavy Barrel Long Weld Neck Flange, MS RTJ Long Weld Neck Flange, Titanium LWN Flange, Sch 80 Schedule 40 Stainless Steel 304, 304L, 316, 316L, and 904L Raised Face Long Weld Neck Flange at the Lowest Prices.

Long Weld Neck Flange Specifications

Size Range

1/2″ (15 NB) to 48″ (1200NB)

Class / Pressure Rating

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

Standards / Dimensions

ANSI/ASME B16.5, B16.47 Series A & B, B16.48, JIS B2220, BS 4504, BS 10, BS1560-3.1, EN-1092, DIN, AS, GOST, MSS SP-44, ISO 70051, API7S-15, API7S-43, API605, AWWA, DIN

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)

Material Standards

ASTM A105, ASTM A350, ASTM A182, ASTM A216, ASTM A352, ASTM A217, ASTM A515, ASTM A516, ASTM A203, A204, ASTM A387, ASTM A240, ASTM A694 Long Weld Neck Flange

Long Weld Neck Flange Materials & Grades

ASTM A182 Long Weld Neck Flange
Stainless Steel 304, 304L, 316, 316L, 316H, 316Ti, 310, 310S, 317, 317L, 321, 347, 347H, 904L, SMO 254/6Mo, Duplex Steel-S31803/S32205, Super Duplex-S32750/S32760 F51, F52, F53, F54, F55, F57, F59, F60, F61, Alloy Steel F1, F5, F9, F11, F12, F22, F91
ASTM B564 Long Weld Neck Flange
Incoloy 800, 800H, 800HT, 825, 925, Inconel 600, 601, 625, 718, 783, 690, X750, Nickel 200, 201, 205, 205LC, Hastelloy C276, C22, C4, C2000, B2, B3, X, Monel 400, 500
ASTM A105 / A105N / A350 LF2 / A694 Long Weld Neck Flange
Carbon Steel F52, F56, F60, F65, F70, F80
ASTM B247 Long Weld Neck Flange
Aluminium 7075, 5086, 6082, 3003, 5083, 6061, 1100
ASTM B61 / B62 / B151 / B152 Long Weld Neck Flange
Copper Nickel 90/10 (C70600 ), 70/30 (C71500), UNS C71640
ASTM B381 Long Weld Neck Flange
Titanium Grade 1, Grade 2, Grade 3, Grade 4, Grade 5, Grade 6, Grade 7, Grade 9, Grade 12

Find the largest ready stock of Heavy Barrel Long Weld Neck Flange, Long Forged Weld Neck Flanges, API 5000, API 6A, BS10, Class 150, Class 300, Class 600, Class 900, Class 1500, Class 2500, EN 1092-1 Type 11, Table E, Table H, Table D, Series B, ISO, JIS 5k 10k 16k 20k, DIN, DN50, DN40, DN80, DN300, DIN 2632/2633/2635, Flat Face, Tongue and Groove, Raised Face, RTJ Face, Orifice, Pn6 Pn10 Pn16 Pn25 Pn40, Long Weld Neck Nozzle, Raised Face Long Weld Neck Flange in Mumbai, India.

ASME B16.5 Long Weld Neck Flange Dimensions

ASME B16.5 Long Weld Neck Flanges Dimensions

Class 2500 Long Weld Neck Flange Dimensions

Size in InchSize in mmOuter Dia.Flange Thick.Hub ODWeld Neck ODRF Dia.RF HeightPCDHub LengthNo of BoltsBolt Size UNCRF Stud LengthHole SizeISO Stud Size
ABCDEFGH
1/21513530.24321.334.9788.9as per requirement43/41207/8M20
3/42014031.85126.742.9795.2as per requirement43/41257/8M20
125160355733.450.87108as per requirement47/81401M24
1 1/43218538.17342.263.57130.2as per requirement411501 1/8M27
1 1/24020544.57948.3737146as per requirement41 1/81701 1/4M30
25023550.99560.392.17171.4as per requirement811801 1/8M27
2 1/26526557.211473104.87196.8as per requirement81 1/81951 1/4M30
38030566.713388.91277228.6as per requirement81 1/42201 3/8M33
410035576.2165114.3157.27273as per requirement81 1/22551 5/8M39
512542092.1203141.3185.77323.8as per requirement81 3/43001 7/8M45
6150485108235168.3215.97368.3as per requirement823452 1/8M52
8200550127305219.1269.97438.2as per requirement1223802 1/8M52
10250675165.1375273323.87539.8as per requirement122 1/24902 5/8M64
12300760184.2441323.83817619.1as per requirement122 3/45402 7/8M72
Class 1500 Long Weld Neck Flange Dimensions
Size in InchSize in mmOuter Dia.Flange Thick.Hub ODWeld Neck ODRF Dia.RF HeightPCDHub LengthNo of BoltsBolt Size UNCRF Stud LengthHole SizeISO Stud Size
ABCDEFGH
1/21512022.33821.334.9782.6as per requirement43/41107/8M20
3/42013025.44426.742.9788.9as per requirement43/41157/8M20
12515028.65233.450.87101.6as per requirement47/81251M24
1 1/43216028.66442.263.57111.1as per requirement47/81251M24
1 1/24018031.87048.3737123.8as per requirement411401 1/8M27
25021538.110560.392.17165.1as per requirement87/81451M24
2 1/26524541.312473104.87190.5as per requirement811601 1/8M27
38026547.713388.91277203.2as per requirement81 1/81801 1/4M30
410031054162114.3157.27241.3as per requirement81 1/41951 3/8M33
512537573.1197141.3185.77292.1as per requirement81 1/22501 5/8M39
615039582.6229168.3215.97317.5as per requirement121 3/82601 1/2M36
820048592.1292219.1269.97393.7as per requirement121 5/82901 3/4M42
10250585108368273323.87482.6as per requirement121 7/83352M48
12300675123.9451323.83817571.5as per requirement1623752 1/8M52
14350750133.4495355.6412.87635as per requirement162 1/44052 3/8M56
16400825146.1552406.4469.97704.8as per requirement162 1/24452 5/8M64
18450915162597457533.47774.7as per requirement162 3/44952 7/8M72
20500985177.8641508584.27831.8as per requirement1635403 1/8M76
246001170203.2762610692.27990.6as per requirement163 1/26153 5/8M90
Class 900 Long Weld Neck Flange Dimensions
Size in InchSize in mmOuter Dia.Flange Thick.Hub ODWeld Neck ODRF Dia.RF HeightPCDHub LengthNo of BoltsBolt Size UNCRF Stud LengthHole SizeISO Stud Size
ABCDEFGH
1/21512022.33821.334.9782.6as per requirement43/41107/8M20
3/42013025.44426.742.9788.9as per requirement43/41157/8M20
12515028.65233.450.87101.6as per requirement47/81251M24
1 1/43216028.66442.263.57111.1as per requirement47/81251M24
1 1/24018031.87048.3737123.8as per requirement411401 1/8M27
25021538.110560.392.17165.1as per requirement87/81451M24
2 1/26524541.312473104.87190.5as per requirement811601 1/8M27
38024038.112788.91277190.5as per requirement87/81451M24
410029044.5159114.3157.27235as per requirement81 1/81701 1/4M30
512535050.8190141.3185.77279.4as per requirement81 1/41901 3/8M33
615038055.6235168.3215.97317.5as per requirement121 1/81901 1/4M30
820047063.5298219.1269.97393.7as per requirement121 3/82201 1/2M36
1025054569.9368273323.87469.9as per requirement161 3/82351 1/2M36
1230061079.4419323.83817533.4as per requirement201 3/82551 1/2M36
1435064085.8451355.6412.87558.8as per requirement201 1/22751 5/8M39
1640070588.9508406.4469.97616as per requirement201 5/82851 3/4M42
18450785101.6565457533.47685.8as per requirement201 7/83252M48
20500855108622508584.27749.3as per requirement2023502 1/8M52
246001040139.7749610692.27901.7as per requirement202 1/24402 5/8M64
Class 600 Long Weld Neck Flange Dimensions
Size in InchSize in mmOuter Dia.Flange Thick.Hub ODWeld Neck ODRF Dia.RF HeightPCDHub LengthNo of BoltsBolt Size UNCRF Stud LengthHole SizeISO Stud Size
ABCDEFGH
1/2159514.33821.334.9766.7as per requirement41/2755/8M14
3/42011515.94826.742.9782.6as per requirement45/8903/4M16
12512517.55433.450.8788.9as per requirement45/8903/4M16
1 1/43213520.76442.263.5798.4as per requirement45/8953/4M16
1 1/24015522.37048.3737114.3as per requirement43/41107/8M20
25016525.48460.392.17127as per requirement85/81103/4M16
2 1/26519028.610073104.87149.2as per requirement83/41207/8M20
38021031.811788.91277168.3as per requirement83/41257/8M20
3 1/29023035133101.6N/A7184.2as per requirement87/81401M24
410027538.1152114.3157.27215.9as per requirement87/81451M24
512533044.5189141.3185.77266.7as per requirement811651 1/8M27
615035547.7222168.3215.97292.1as per requirement1211701 1/8M27
820042055.6273219.1269.97349.2as per requirement121 1/81901 1/4M30
1025051063.5343273323.87431.8as per requirement161 1/42151 3/8M33
1230056066.7400323.83817489as per requirement201 1/42201 3/8M33
1435060569.9432355.6412.87527as per requirement201 3/82351 1/2M36
1640068576.2495406.4469.97603.2as per requirement201 1/22551 5/8M39
1845074582.6546457533.47654as per requirement201 5/82751 3/4M42
2050081588.9610508584.27723.9as per requirement241 5/82851 3/4M42
Class 400 Long Weld Neck Flange Dimensions
Size in InchSize in mmOuter Dia.Flange Thick.Hub ODWeld Neck ODRF Dia.RF HeightPCDHub LengthNo of BoltsBolt Size UNCRF Stud LengthHole SizeISO Stud Size
ABCDEFGH
1/2159514.33821.334.9766.7as per requirement41/2755/8M14
3/42011515.94826.742.9782.6as per requirement45/8903/4M16
12512517.55433.450.8788.9as per requirement45/8903/4M16
1 1/43213520.76442.263.5798.4as per requirement45/8953/4M16
1 1/24015522.37048.3737114.3as per requirement43/41107/8M20
25016525.48460.392.17127as per requirement85/81103/4M16
2 1/26519028.610073104.87149.2as per requirement83/41207/8M20
38021031.811788.91277168.3as per requirement83/41257/8M20
3 1/29023035133101.6N/A7184.2as per requirement87/81401M24
410025535146114.3157.27200as per requirement87/81401M24
512528038.1178141.3185.77235as per requirement87/81451M24
615032041.3206168.3215.97269.9as per requirement127/81501M24
820038047.7260219.1269.97330as per requirement1211701 1/8M27
1025044554321273323.87387.4as per requirement161 1/81901 1/4M30
1230052057.2375323.83817450.8as per requirement161 1/42051 3/8M33
1435058560.4425355.6412.87514.4as per requirement201 1/42101 3/8M33
1640065063.5483406.4469.97571.5as per requirement201 3/82201 1/2M36
1845071066.7533457533.47628.6as per requirement241 3/82301 1/2M36
2050077569.9587508584.27685.8as per requirement241 1/22401 3/4M39
2460091576.2702610692.27812.8as per requirement241 3/42651 7/8M45
Class 300 Long Weld Neck Flange Dimensions
Size in InchSize in mmOuter Dia.Flange Thick.Hub ODWeld Neck ODRF Dia.RF HeightPCDHub LengthNo of BoltsBolt Size UNCMachine Bolt LengthRF Stud LengthHole SizeISO Stud Size
ABCDEFGH
1/2159512.73821.334.9266.7As Required41/255655/8M14
3/42011514.34826.742.9282.6As Required45/865753/4M16
12512515.95433.450.8288.9As Required45/865753/4M16
1 1/43213517.56442.263.5298.4As Required45/870853/4M16
1 1/24015519.17048.3732114.3As Required43/475907/8M20
25016520.78460.392.12127As Required85/875903/4M16
2 1/26519023.910073104.82149.2As Required83/4851007/8M20
3802102711788.91272168.3As Required83/4901107/8M20
3 1/29023028.6133101.6139.72184.2As Required83/4951107/8M20
410025530.2146114.3157.22200As Required83/4951157/8M20
512528033.4178141.3185.72235As Required83/41101207/8M20
615032035206168.3215.92269.9As Required123/41101207/8M20
820038039.7260219.1269.92330.2As Required127/81201401M24
1025044546.1321273323.82387.4As Required1611401601 1/8M27
1230052049.3375323.83812450.8As Required161 1/81451701 1/4M30
1435058552.4425355.6412.82514.4As Required201 1/81601801 1/4M30
1640065055.6483406.4469.92571.5As Required201 1/41651901 3/8M33
1845071058.8533457533.42628.6As Required241 1/41701951 3/8M33
2050077562587508584.22685.8As Required241 1/41852051 3/8M33
2460091568.3702610692.22812.8As Required241 1/22052301 5/8M39

Class 150 Long Weld Neck Flange Dimensions

Size in InchSize in mmOuter Dia.Flange Thick.Hub ODWeld Neck ODRF Dia.RF HeightPCDHub LengthNo of BoltsBolt Size UNCMachine Bolt LengthRF Stud LengthHole SizeISO Stud Size
ABCDEFGH
1/215909.63021.334.9260.3As Required41/250555/8M14
3/42010011.23826.742.9269.9As Required41/250655/8M14
12511012.74933.450.8279.4As Required41/255655/8M14
1 1/43211514.35942.263.5288.9As Required41/255705/8M14
1 1/24012515.96548.373298.4As Required41/265705/8M14
25015017.57860.392.12120.7As Required45/870853/4M16
2 1/26518020.79073104.82139.7As Required45/875903/4M16
38019022.310888.91272152.4As Required45/875903/4M16
3 1/29021522.3122101.6139.72177.8As Required85/875903/4M16
410023022.3135114.3157.22190.5As Required85/875903/4M16
512525522.3164141.3185.72215.9As Required83/485957/8M20
615028023.9192168.3215.92241.3As Required83/4851007/8M20
820034527246219.1269.92298.5As Required83/4901107/8M20
1025040528.6305273323.82362As Required127/81001151M24
1230048530.2365323.83812431.8As Required127/81001201M24
1435053533.4400355.6412.82476.3As Required1211151351 1/8M27
1640059535457406.4469.92539.8As Required1611151351 1/8M27
1845063538.1505457.2533.42577.9As Required161 1/81251451 1/4M30
2050070041.3559508584.22635As Required201 1/81401601 1/4M30
2460081546.1663610692.22749.3As Required201 1/41501701 3/8M33

Highly demanded and best quality long weld neck flanges by size range in 3 Inch, 4 Inch, 1.5 Inch, 1 Inch, 3/4 Inch, 5 Inch. 6 Inch, 8 Inch.

Long Weld Neck 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

Long Weld Neck Flange Price

Omaa Metal Sources is ASME B16.5 Long Welding Neck Flange Exporters and Suppliers in the US, UK, South Africa, Saudi Arabia, Singapore, UAE, Oman, South Korea, Turkey, Bahrain, Malaysia, Philippines, Thailand, Norway, Indonesia, Iraq, Yemen, Bangladesh, Nigeria, Egypt, Peru, Ghana, Morocco, Etc.

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