ASME B16.47 Series B Class 75 blind flanges are essential components used to seal the ends of piping systems, particularly in large-diameter, low-pressure applications. These flanges are designed to block off a section of pipe or a nozzle that is not in use, providing a safe and efficient way to isolate flow. Tesco Steel & Engineering manufactures these blind flanges with precision and compliance to the ASME B16.47 Series B standard, ensuring they deliver a perfect fit, reliable sealing, and long-term durability in any industrial setup.
At Tesco Steel & Engineering, we are committed to delivering only the highest quality blind flanges. Our Class 75 Series B blind flanges are crafted from premium materials such as stainless steel, carbon steel, and specialty alloys to meet various operational requirements. Each flange undergoes strict quality inspections and precision machining to guarantee flawless performance, leak resistance, and structural integrity under low-pressure conditions. These flanges are widely used across industries including water treatment, shipbuilding, HVAC, and petrochemicals.
We are proud exporters of ASME B16.47 Series B Class 75 blind flanges to numerous countries such as the United States, Canada, Germany, France, Saudi Arabia, the UAE, and Qatar. Tesco Steel & Engineering has built a strong international reputation for delivering high-performance flanges that meet both operational and budgetary needs. With a client base spanning multiple continents and industries, we remain a trusted supplier for companies seeking reliable piping solutions with global standards.
| Pipe Normal Diam. | O.D. OF Flange |
Thickness | Raised Face Diam. |
Diam. of Bolt Circle |
No. of Bolt Holes |
Diam. of Bolt Holes |
Diam. of Bolt |
Fillet Radius Min. |
|---|---|---|---|---|---|---|---|---|
| inch | O | C | R | BD | BN | BH | DB | r1 |
| 26" | 762 | 33.3 | 704.9 | 723.9 | 36 | 19.1 | 5/8" | 7.9 |
| 28" | 812.8 | 33.3 | 755.7 | 774.7 | 40 | 19.1 | 5/8" | 7.9 |
| 30" | 863.6 | 33.3 | 806.5 | 825.5 | 44 | 19.1 | 5/8" | 7.9 |
| 32" | 914.4 | 36.6 | 857.3 | 876.3 | 48 | 19.1 | 5/8" | 7.9 |
| 34" | 965.2 | 38.1 | 908.1 | 927.1 | 52 | 19.1 | 5/8" | 7.9 |
| 36" | 1033.5 | 42.4 | 965.2 | 992.1 | 40 | 22.4 | 3/4" | 9.7 |
| 38" | 1084.3 | 44.5 | 1016 | 1042.9 | 40 | 22.4 | 3/4" | 9.7 |
| 40" | 1135.1 | 44.5 | 1066.8 | 1093.7 | 44 | 22.4 | 3/4" | 9.7 |
| 42" | 1185.9 | 47.8 | 1117.6 | 1144.5 | 48 | 22.4 | 3/4" | 9.7 |
| 44" | 1251 | 49.3 | 1174.8 | 1203.5 | 36 | 25.4 | 7/8" | 9.7 |
| 46" | 1301.8 | 50.8 | 1225.6 | 1254.3 | 40 | 25.4 | 7/8" | 9.7 |
| 48" | 1352.6 | 53.8 | 1276.4 | 1305.1 | 44 | 25.4 | 7/8" | 9.7 |
| 50" | 1403.4 | 55.4 | 1327.2 | 1355.9 | 44 | 25.4 | 7/8" | 9.7 |
| 52" | 1457.5 | 57.2 | 1378 | 1409.7 | 48 | 25.4 | 7/8" | 9.7 |
| 54" | 1508.3 | 60.5 | 1428.8 | 1460.5 | 48 | 25.4 | 7/8" | 9.7 |
| 56" | 1574.8 | 62 | 1485.9 | 1521 | 40 | 28.4 | 1" | 11.2 |
| 58" | 1625.6 | 63.5 | 1536.7 | 1571.8 | 44 | 28.4 | 1" | 11.2 |
| 60" | 1676.4 | 66.5 | 1587.5 | 1622.6 | 44 | 28.4 | 1" | 11.2 |
Countries we export to: ANSI / ASME B16.47 Series B Class 75 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: ANSI / ASME B16.47 Series B Class 75 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.