ASME B16.47 Series B Class 400 blind flanges are engineered to seal off the ends of high-pressure pipelines and are essential in systems that require maintenance access or future expansion. Designed specifically for larger diameter piping, these flanges ensure complete shut-off and are built to withstand elevated pressure ratings of Class 400. Tesco Steel & Engineering manufactures and supplies these flanges with unmatched precision, offering clients a dependable solution for demanding applications.
Known for superior quality and craftsmanship, Tesco Steel & Engineering’s blind flanges are manufactured using high-grade materials such as carbon steel, stainless steel, and alloy steel, depending on application needs. Each flange undergoes rigorous testing for dimensional accuracy, strength, and pressure retention. Our commitment to quality control and technical expertise positions Tesco as a trusted partner in supplying ASME B16.47 Series B Class 400 blind flanges for complex and safety-critical environments.
Tesco Steel & Engineering exports these high-performance blind flanges to global markets including the USA, Germany, Italy, Saudi Arabia, Qatar, and the UAE. Our flanges are widely used in industries such as petrochemicals, offshore drilling, water treatment, and energy infrastructure. With a focus on international standards, timely deliveries, and client satisfaction, Tesco continues to serve both Western and Middle Eastern industries with excellence and reliability.

| Nominal Pipe Size | Outside Diameter (O) | Min Thickness (T) | Raised Face Diameter (R) | Approximate Weight (lbs) | Bolt Circle (C) | Number of Holes | Diameter of Holes |
|---|---|---|---|---|---|---|---|
| 26 | 38.25 | 3.88 | 29.50 | 1263 | 34.50 | 28 | 1.88 |
| 28 | 40.75 | 4.12 | 31.50 | 1520 | 37.00 | 28 | 2.00 |
| 30 | 43.00 | 4.38 | 33.75 | 1802 | 39.25 | 28 | 2.12 |
| 32 | 45.25 | 4.56 | 36.00 | 2075 | 41.50 | 28 | 2.12 |
| 34 | 47.50 | 4.81 | 38.00 | 2415 | 43.50 | 28 | 2.12 |
| 36 | 50.00 | 5.06 | 40.25 | 2815 | 46.00 | 32 | 2.12 |
| 38 | 47.50 | 4.88 | 40.75 |
2450 | 44.00 | 32 | 1.88 |
| 40 | 50.00 | 5.12 | 43.00 | 2849 | 46.25 | 32 | 2.00 |
| 42 | 52.00 | 5.25 | 45.00 | 3160 | 48.25 | 32 | 2.00 |
| 44 | 54.50 | 5.50 | 47.25 | 3635 | 50.50 | 32 | 2.12 |
| 46 | 56.75 | 5.75 | 49.50 | 4120 | 52.75 | 36 | 2.12 |
| 48 | 59.50 | 6.00 | 51.50 | 4725 | 55.25 | 28 | 2.38 |
| 50 | 61.75 | 6.25 | 53.62 | 5303 | 57.50 | 32 | 2.38 |
| 52 | 63.75 | 6.44 | 55.62 | 5823 | 59.50 | 32 | 2.38 |
| 54 | 67.00 | 6.75 | 57.88 | 6742 | 62.25 | 28 | 2.62 |
| 56 | 69.00 | 6.94 | 60.12 | 7352 | 64.25 | 32 | 2.62 |
| 58 | 71.00 | 7.12 | 62.12 | 7986 | 66.25 | 32 | 2.62 |
| 60 | 74.25 | 7.44 | 64.38 | 9126 | 69.00 | 32 | 2.88 |
Countries we export to: ANSI / ASME B16.47 Series B Class 400 Blind 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: Blind 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.