ANSI B16.1 CLASS 250 WELD NECK FLANGES

ANSI ASME B16.1 CLASS 250 WELD NECK FLANGE DIMENSIONS, ANSI ASME B16.1 CLASS 250 WELD NECK FLANGE BOLT CHART, ANSI ASME B16.1 CLASS 250 WELD NECK FLANGE WEIGHT

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ANSI ASME B16.1 Class 250 Weld Neck Flange Manufacturer Supplier Distributors

ANSI ASME B16.1 Class #250 Weld Neck Flange Weight

ANSI ASME B16.1 Class 250psi Weld Neck Flange Bolt Chart

ASME B16.1 Class 250 Weld Neck Flanges are essential components for low to medium-pressure piping systems, providing reliable and high-strength connections where safety and durability are critical. Also called WNRF #250 (Weld Neck Raised Face), WNFF #250 (Weld Neck Flat Face), or WN Flanges #250, these flanges feature a tapered neck that ensures smooth stress distribution at the welded joint, reducing fatigue and extending the service life of the pipeline. At Tesco Steel & Engineering, every flange is crafted with precision and high-quality materials, meeting international standards and delivering long-lasting, leak-proof performance.

Manufactured at our state-of-the-art Mumbai factory, equipped with advanced CNC machinery, automated forging lines, and stringent quality inspection systems, our Class 250 weld neck flanges stand out for their superior craftsmanship and consistent performance. Tesco Steel & Engineering is recognized for its high-tech production and exceptional quality, offering flanges with excellent corrosion resistance, dimensional accuracy, and reliability in demanding environments. These flanges are ideal for projects requiring precise alignment and maintenance-friendly piping solutions.

Our Class 250 WN flanges are widely used across industries such as petrochemicals, chemical processing, water treatment, HVAC systems, and low-pressure oil & gas pipelines. We proudly export these high-quality flanges to international markets including the USA, UK, Germany, Italy, Saudi Arabia, UAE, and Oman, serving both Western and Middle Eastern clients with consistent excellence. Trusted by engineers and project managers worldwide, Tesco Steel & Engineering continues to be a leading supplier of ASME B16.1 Class 250 weld neck flanges, delivering reliability, durability, and superior performance across diverse industrial applications.

ANSI B16.1 Class 250 Weld Neck Flange Dimensions

Nominal Size	Outside Diameter (OD)	Thickness (T)	Raised Face Dia. (R)	Diameter at Base (X)	Bore - SO (B)	LTH - Weld Neck (L₂)	Drilling - Bolt Circle (BC)	Drilling - Hole Diameter	Drilling - No. of Holes	Weight - Weld Neck (lbs)	Weight - Slip-on (lbs)	Weight - Blind (lbs)	* Bore - WN (B₂)
26	38.25	2.81	32.44	30.5	26.25	5.81	34.5	1.88	28	534	531	916	*
28	40.75	2.94	34.94	33	28.25	5.94	37	1.88	28	629	637	1095	*
30	43	3	37.19	35.25	30.25	6	39.25	1.88	28	702	707	1236	*
32	45.25	3.12	39.44	37.5	32.25	6.12	41.5	1.88	28	793	801	1424	*
34	47.5	3.25	41.44	39.5	34.25	6.25	43.5	1.88	28	882	889	1649	*
36	50	3.38	43.69	41.5	36.25	6.38	46	2.13	32	969	970	1884	*
38	52.25	3.44	45.69	43.5	38.25	6.44	48	2.13	32	1057	1062	2094	*
40	54.25	3.56	47.94	45.75	40.25	6.56	50.25	2.13	36	1158	1172	2336	*
42	57	3.69	50.44	47.75	42.25	6.94	52.75	2.125	36	1318	1288	2673	*
44	59.25	3.75	52.69	49.75	44.25	7	55	2.13	36	1423	1397	2935	*
46	61.5	3.88	54.94	51.75	46.25	7.12	57.25	2.13	40	1536	1510	3272	*
48	65	4	58.44	54	48.25	7.25	60.75	2.13	40	1824	1797	3768	*

*To be specified by the customer

Notes:
Dimensions are in inches.
ANSI B16.1 is a gray iron pipe flange and fitting specification.
Steel flanges are occasionally produced to mate up with Class 125 and Class 250 valves
These flange dimensions are provided for reference even though specification does not cover steel.
These flanges are typically supplied with a flat face.

Advantages of using ANSI B16.1 Class 250 Weldneck Flanges

Weldneck flanges offer several advantages over other types of flanges, such as slip-on flanges. Here are some of the benefits of using weldneck flanges:

Superior Strength
Weldneck flanges have a long tapered hub that provides additional strength to the connection between the pipe and the flange. The welding process creates a permanent and durable bond that can withstand high pressure and extreme temperatures.

Versatility in Accommodating Different Pipe Sizes
Weldneck flanges are available in various sizes, making them suitable for use with pipes of different diameters. The flanges can also be used with pipes of different materials, such as stainless steel, carbon steel, and alloy steel.

Secure and Leak-Free Connection
The welding process creates a strong and leak-free connection between the pipe and the flange. This ensures that the piping system is safe and efficient, reducing the risk of leaks and other safety hazards.

Easy to Install and Maintain
Weldneck flanges are relatively easy to install, and the welding process can be completed quickly. The flanges are also easy to maintain, requiring only periodic inspection and maintenance to ensure that they are in good working condition.

Applications of ANSI B16.1 Class 250 Weldneck Flange

Weldneck flanges are used in various industrial piping applications, including:

Oil and Gas Industry
Weldneck flanges are commonly used in oil and gas piping systems, where they are used to transport crude oil, natural gas, and other petroleum products.

Chemical Processing Industry
Weldneck flanges are used in chemical processing plants to transport various chemicals and materials.

Water Treatment Industry
Weldneck flanges are used in water treatment plants to transport water and other fluids.

Power Generation Industry
Weldneck flanges are used in power generation plants to transport steam, gas, and other fluids.

Price List of Weldneck Flanges

Prices for ANSI B16.1 Class 250 Weldneck Flanges are very affordable.

Please click on the "Ask for Quote" button or click here to request the updated price list and ready stock information along with your requirement.
TESCO STEEL & ENGINEERING maintains a stock of all standard items and can export them at the best price.

WELD NECK FLANGE ANSI / ASME B16.1

ANSI B16.1 Class 125 Weld Neck Flange

ANSI B16.1 Class 250 Weld Neck Flange

Countries we export to: ANSI B16.1 Class 250 Weld Neck Flanges Manufacturers / Suppliers / Stockist in Kuwait, in UAE, in Germany, Saudi Arabia, West Africa, Iraq, Congo, Mexico, Bahra, Canada, Philippes, Thailand, Kenya, Oman, Malaysia, Turkey, Qatar, Sudan, Netherlands, Oman, Nigeria, Lithuania, Gabon, Russia, Vietnam, Angola, Bolivia, Indonesia, UK, Yemen, Italy, United States, Venezuela, Spain, Iran, Estonia, Kazakhstan, Algeria, Jordan, Ecuador, Portugal, Colombia, Libya, Chile, Peru, Iran, South Africa, Bangkok, Namibia, Jeddah, Afghanistan, Israel, Zambia, Macau, Morocco, Denmark, Taiwan, Norway, Belarus, North Macedonia, Lebanon, Sri Lanka, Bhutan, Bulgaria, Albania, Ukrae, Belgium, Fland, Slovokia, Tibet, Romania, France, Brazil, Tridad & Tobago, Fiji, Tunisia, Gambia, Mexico, Hungary, Zimbabwe, Mongolia, Ghana, Egypt, Kazakhstan, Czech Republic, Azerbaijan, Poland, Greece, Costa Rica, Kosovo, New Zealand, Croatia, Puerto Rico, Tanzania, Somalia.

Major Exporting Areas: ASME B16.1 #250 Weld Neck Flanges Manufacturers / Suppliers / Stockist in Moscow, Port-Of-Spain, Seoul, Montreal, Dubai, Kuala Lumpur, Aberdeen, Tehran, Bogota, Petaling Jaya, Melbourne, Abu Dhabi, Courbevoie, Edmonton, Ho Chi Minh City, Bangkok, Toronto, Muscat, Milan, Busan, Mexico City, Perth, La Victoria, Santiago, Rio de Janeiro, London, Karachi, Los Angeles, Manama, Geoje-si, Atyrau, Sydney, Riyadh, New York, Jeddah, Houston, Granada, Jakarta, Brisbane, Algiers, Kuwait City, Dubai, Hanoi, Doha, Al Jubail, Chiyoda, Cairo, Gimhae-si, Caracas, Lagos, Al Khobar, Madrid, Singapore, Calgary, Colombo, Ulsan, Istanbul, Ahvaz, Dammam, Dallas, Texas, Ankara, Sharjah, Vung Tau, Angola, Benin, Burundi, Botswana, Burkina Faso, Cameroon, Douala, Central African Republic, Republic of Congo, Democratic Republic of Congo, Côte d'Ivoire, Djibouti, Eritrea, Ethiopia, Equatorial Guinea, Gabon, Guinea, Kenya, Liberia,Malawi, Mali, Mauritania, Mauritius, Casablanca-Settat, Tanger-Tetouan-Al Hoceima, Fès-Meknès, Marrakesh-Safi, Oriental, Béni Mellal-Khénifra, Souss-Massa, Laâyoune-Sakia El Hamra, Rabat-Salé-Kénitra region, Mozambique, Temara, Niger, Rwanda, Senegal, Sierra Leone, Sudan, Tanzania, Togo, Uganda, Bangkok, Bangchan, Khlong Sam Wa, Gemopolis, Lard Krabang, Pathumthani, Bangkadi, Navanakorn, Samut Prakarn, Bangplee, Bangpoo, Saraburi, Nongkhae, SIL I/Land, Chachoengsao, 304 I/P, Gateway City, Wellgrow, Rayong, Amata City, Eastern Seaboard, Hemaraj Eastern Seaboard, Rojana, Soam Eastern, Chonburi, Amata Nakorn, Hemaraj Chonburi, Pinthong, Ayutthaya, Bangpa-in, Saha Ratna Nakorn, Nakornratchasima, Kabinburi, Prachinburi, HCMC, Tan Thuan Export Processing Zone, Bien Hoa, Dong Nai Province, Amata City Bien Hoa Industrial Park, Long Binh Techno Park, Binh Duong Province, Vietnam Singapore Industrial Park, My Phuoc Industrial Park, Ho Nai Industrial Zone, Bau Xeo Industrial Park, Long Thanh Industrial Zone, Long Duc Industrial Park, Duc Hao I, Tan Huong, Long Jiang, Tra Noc I/II, Hung Phu I, Hiep Phuoc Industrial Park, Phuoc Dong Industrial Park, Dinh Vu – Cat Hai Economic Zone.