ASME B16.5 Class 900 Slip On Flanges are essential components for high-pressure piping systems, offering ease of installation and reliable performance. These flanges, also known as SORF #900 (Slip On Raised Face), SOFF #900 (Slip On Flat Face), and SO Flanges #900, are designed to be slipped over the pipe and welded on both the inside and outside, ensuring a strong, leak-proof connection. At Tesco Steel & Engineering, we manufacture these flanges to meet stringent ASME B16.5 standards, delivering exceptional durability and long-term reliability for critical industrial applications.
Our Class 900 slip on flanges are widely used in industries such as oil & gas, petrochemicals, chemical processing, power generation, marine engineering, and water treatment plants. We proudly export these high-quality flanges to countries including the USA, UK, Germany, Italy, Saudi Arabia, UAE, and Qatar, serving both Western and Middle Eastern markets. These flanges are ideal for projects that require frequent maintenance, inspection, or alignment, providing a practical and cost-effective piping solution.
Manufactured in our state-of-the-art Mumbai factory, equipped with advanced CNC machinery, automated fabrication lines, and rigorous quality control systems, Tesco Steel & Engineering ensures each flange delivers superior performance. Known for premium-quality manufacturing, our Class 900 slip on flanges combine corrosion resistance, pressure tolerance, and precision engineering, making them a preferred choice for engineers and project managers globally. With our focus on innovation, reliability, and international standards, we continue to be a leading supplier of ASME B16.5 Class 900 SO Flanges across multiple industries and countries.
| Size in Inch | Size in mm | Outer Dia. | Flange Thickness | Hub OD | Flange Length | RF Dia. | RF Height | PCD | Socket Bore | No of Bolts | Bolt Size UNC | RF Stud Length | Hole Size | ISO Stud Size | Weight in kg |
| A | B | C | D | E | F | G | H | ||||||||
| 1/2 | 15 | 120 | 22.3 | 38 | 32 | 34.9 | 7 | 82.6 | 22.2 | 4 | 3/4 | 110 | 7/8 | M20 | 1.8 |
| 3/4 | 20 | 130 | 25.4 | 44 | 35 | 42.9 | 7 | 88.9 | 27.7 | 4 | 3/4 | 115 | 7/8 | M20 | 2.3 |
| 1 | 25 | 150 | 28.6 | 52 | 41 | 50.8 | 7 | 101.6 | 34.5 | 4 | 7/8 | 125 | 1 | M24 | 3.6 |
| 1 1/4 | 32 | 160 | 28.6 | 64 | 41 | 63.5 | 7 | 111.1 | 43.2 | 4 | 7/8 | 125 | 1 | M24 | 4.1 |
| 1 1/2 | 40 | 180 | 31.8 | 70 | 44 | 73 | 7 | 123.8 | 49.5 | 4 | 1 | 140 | 1 1/8 | M27 | 5.5 |
| 2 | 50 | 215 | 38.1 | 105 | 57 | 92.1 | 7 | 165.1 | 61.9 | 8 | 7/8 | 145 | 1 | M24 | 11.5 |
| 2 1/2 | 65 | 245 | 41.3 | 124 | 64 | 104.8 | 7 | 190.5 | 74.6 | 8 | 1 | 160 | 1 1/8 | M27 | 16.5 |
| 3 | 80 | 240 | 38.1 | 127 | 54 | 127 | 7 | 190.5 | 90.7 | 8 | 7/8 | 145 | 1 | M24 | 12 |
| 4 | 100 | 290 | 44.5 | 159 | 70 | 157.2 | 7 | 235 | 116.1 | 8 | 1 1/8 | 170 | 1 1/4 | M30 | 24 |
| 5 | 125 | 350 | 50.8 | 190 | 79 | 185.7 | 7 | 279.4 | 143.8 | 8 | 1 1/4 | 190 | 1 3/8 | M33 | 38 |
| 6 | 150 | 380 | 55.6 | 235 | 86 | 215.9 | 7 | 317.5 | 170.7 | 12 | 1 1/8 | 190 | 1 1/4 | M30 | 50 |
| 8 | 200 | 470 | 63.5 | 298 | 102 | 269.9 | 7 | 393.7 | 221.5 | 12 | 1 3/8 | 220 | 1 1/2 | M36 | 78 |
| 10 | 250 | 545 | 69.9 | 368 | 108 | 323.8 | 7 | 469.9 | 276.2 | 16 | 1 3/8 | 235 | 1 1/2 | M36 | 112 |
| 12 | 300 | 610 | 79.4 | 419 | 117 | 381 | 7 | 533.4 | 327 | 20 | 1 3/8 | 255 | 1 1/2 | M36 | 148 |
| 14 | 350 | 640 | 85.8 | 451 | 130 | 412.8 | 7 | 558.8 | 359.2 | 20 | 1 1/2 | 275 | 1 5/8 | M39 | 182 |
| 16 | 400 | 705 | 88.9 | 508 | 133 | 469.9 | 7 | 616 | 410.5 | 20 | 1 5/8 | 285 | 1 3/4 | M42 | 193 |
| 18 | 450 | 785 | 101.6 | 565 | 152 | 533.4 | 7 | 685.8 | 461.8 | 20 | 1 7/8 | 325 | 2 | M48 | 258 |
| 20 | 500 | 855 | 108 | 622 | 159 | 584.2 | 7 | 749.3 | 513.1 | 20 | 2 | 350 | 2 1/8 | M52 | 317 |
| 24 | 600 | 1040 | 139.7 | 749 | 203 | 692.2 | 7 | 901.7 | 616 | 20 | 2 1/2 | 440 | 2 5/8 | M64 | 608 |
Countries we export to: ASME B16.5 Class 900 Slip On 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 B16.5 #900 SORF 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.