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Sorf Flange
What is a Slip-On Flange?
A Slip-On Flange (SO Flange) is a flange that slides over the pipe and is welded from both inside and outside to provide strength and prevent leakage. It is easy to align and install, making it a cost-effective choice for low to moderate pressure systems across multiple industries.
š§± Types of Slip-On Flanges
| Flange Type | Description | Industries |
| Standard Slip-On | Most common; flat face or raised face; simple slip-over pipe | Oil & gas, marine pipelines |
| Raised Face (RF) | Slightly raised sealing surface; used with gaskets | Oilfield, chemical plants |
| Flat Face (FF) | Entire face contacts gasket; used with cast equipment | Water plants, civil engineering |
| Hubbed Slip-On | Slip-on with extended neck; easier bolt alignment | Marine, high-vibration systems |
| Ring-Type Joint (RTJ) | Machined groove for metal gasket; for higher pressure applications | Offshore, refinery applications |
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š Flange Standards ā ANSI / JIS / DIN
| Standard | Typical Pressure Ratings | Regions & Use Cases |
| ANSI / ASME B16.5 | Class 150, 300, 600, 900 | USA ā Oilfield, refineries, marine piping |
| DIN EN 1092-1 | PN 6, PN 10, PN 16, PN 25 | Europe ā Civil pipelines, wastewater |
| JIS B2220 | 5K, 10K, 16K, 20K, 30K | Japan/Asia ā Marine & shipbuilding systems |
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š Pressure Ratings ā Slip-On Flanges
| Standard | Class / Rating | Max Pressure (approx.) |
| ANSI Class 150 | 285 psi (19.6 bar) | Water & low-pressure oil lines |
| ANSI Class 300 | 740 psi (51 bar) | Process pipelines, pumps |
| DIN PN16 | 232 psi (16 bar) | Civil water & waste pipelines |
| JIS 10K | ~145 psi (10 bar) | Marine piping & ballast lines |
| JIS 20K | ~290 psi (20 bar) | Ship engine rooms, fire mains |
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š Materials for Slip-On Flanges
| Material | Standard Grades | Industries |
| Carbon Steel | ASTM A105 / A350 LF2 | Civil water lines, oil transport |
| Stainless Steel | A182 F304 / F316 / F316L | Marine pipelines, food-grade systems |
| Duplex Stainless | UNS S31803 / S32750 | Offshore platforms, seawater systems |
| Nickel Alloys | Inconel 625 / Monel 400 | Corrosive environments, marine rigs |
| Galvanized Steel | Coated Carbon Steel | Civil infrastructure, drainage systems |
š Industries & Applications
š¢ Oilfield Use
- Easy-to-weld solution for moderate-pressure crude pipelines
- Used in storage tanks, skids, compressor manifolds
- Preferred where quick installation and cost efficiency matter
š¢ Marine & Shipbuilding
- Common in seawater lines, fire suppression, ballast systems
- Materials like Monel and Duplex SS resist saltwater corrosion
- Compatible with JIS 10K and 20K flanges
š Civil Infrastructure
- Used in pipelines for potable water, wastewater, and storm drains
- Cost-effective solution for non-critical pressure applications
- Available in DIN PN10 / PN16 configurations
š§ Slip-On Flange Advantages
- Lower cost than weld neck flanges
- Easier alignment and installation
- Ideal for low-pressure piping
- Available in various international standards (JIS, DIN, ANSI)
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Your trusted Slip-On Flange (SORF) suppliers in Dubai, Burj Al Noor Trading L.L.C offers a complete range of flanges for industrial, marine, offshore, and civil applications, engineered for reliable sealing and ease of installation. For those wondering what is a slip-on flange or seeking a deeper understanding of slip-on flange meaning and how slip-on flanges work, these flanges are designed to slide over the pipe and are then welded both inside and outside to provide strength and prevent leakage. We supply all types of slip-on flanges, including Raised Face (RF) and Flat Face (FF) options, as well as RTJ slip-on flanges for high-pressure systems.
Our inventory includes ANSI slip-on flange class 150, DIN PN16 slip-on flange dimensions, and JIS 10K slip-on flange specifications, meeting global standards for compatibility and performance. Designed to handle a wide range of slip-on flange pressure ratings, our flanges are widely used in various sectors. Class 150 slip-on flanges are ideal for low-pressure oilfield applications, while PN16 flanges are commonly utilized in civil works and water distribution systems. For marine and offshore use, we supply F316 slip-on flanges, marine-grade slip-on flanges, and JIS flanges for ships, all made from saltwater-resistant materials to endure harsh marine environments.
We also stock ASTM A105 slip-on flanges for carbon steel systems, duplex slip-on flanges for enhanced corrosion resistance, and carbon steel flanges for water pipelines. Whether your project requires standard flanges for civil infrastructure or slip-on flanges for oil & gas operations, Burj Al Noor Trading L.L.C ensures quality, compliance, and timely delivery.
As leading Slip-On Flange suppliers in Dubai, we serve customers across the UAE, Saudi Arabia, Oman, and the wider GCC and African regions, supporting industries ranging from energy and marine to waterworks and construction. For high-quality, cost-effective flange solutions tailored to your needs, trust Burj Al Noor Trading L.L.Cāwhere performance meets reliability.
We deal in all kinds of flanges, including: Weld Neck Flange, Slip-On Flange, Blind Flange, Threaded Flange, Socket Weld Flange, Lap Joint Flange, Long Weld Neck Flange, Orifice Flange, Spectacle Blind Flange, Ring Type Joint (RTJ) Flange, Forged Flange, Plate Flange, Reducing Flange, and Custom Flanges.
