Slip-on Flanges
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Slip-on Flanges
Slip-on flanges are a popular type of pipe flange that slides over the end of a pipe and is then welded in place. They are widely used in low-pressure applications where quick and easy installation is required. These flanges are designed with a slightly larger inner diameter than the pipe, allowing them to slip over before being welded both inside and outside for a secure fit. Their cost-effectiveness and simple design make them ideal for applications in industries such as oil and gas, chemical processing, and water treatment.
One of the main advantages of slip-on flanges is their ease of alignment during installation, reducing the chances of welding errors. They provide a strong, leak-resistant connection while requiring less welding than other flange types like weld neck flanges. However, they are not recommended for high-pressure or high-temperature applications, as they are not as strong or durable as other flange types. Despite this limitation, slip-on flanges remain a reliable choice for many piping systems due to their affordability, ease of use, and effective performance in appropriate conditions.
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Materials and Standards for Slip-on Flanges
Slip-on flanges are a type of pipe flange that easily slides over the end of a pipe and is secured with welding. They are commonly used in low-pressure applications where quick installation and cost efficiency are priorities. The design features a slightly larger inner diameter than the pipe, allowing it to slip on smoothly before being welded both inside and outside. This ensures a secure and stable connection while reducing installation time. Slip-on flanges are widely used in industries such as oil and gas, water treatment, and chemical processing due to their affordability and ease of use.
One of the key benefits of slip-on flanges is their simple alignment, which makes installation easier compared to other flange types. They require less precision during placement, reducing the risk of misalignment and welding errors. However, slip-on flanges are not as strong as weld neck flanges, making them less suitable for high-pressure or high-temperature applications.
Features Of Slip-on Flanges
- Easy Installation
- Cost-Effective
- Versatile Applications
- Secure Connection
- Durable Material Options
Application Of Slip-on Flanges
- Oil and Gas Industry
- Water Treatment Plants
- Chemical & Petrochemical Industry
- Power Plants
- Food & Beverage Industry
Specification Of Slip-on Flanges
| Specification | Details |
| Standards | ASME B16.5, ANSI B16.5, ASTM A182/A105, DIN, JIS, BS |
| Size Range | ½” to 60” (Custom sizes available) |
| Pressure Ratings | Class 150, 300, 600, 900, 1500, 2500 |
| Materials | Carbon Steel (ASTM A105, A350 LF2), Stainless Steel (ASTM A182 F304, F316, F321), Alloy Steel (ASTM A182 F5, F9, F11, F22, F91), Duplex & Super Duplex Steel, Nickel Alloys (Inconel, Monel, Hastelloy) |
| Flange Face Types | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ) |
| Manufacturing Process | Forged, Machined, and Heat-Treated |
| Surface Coating & Finish | Hot-dip Galvanized, Black Paint, Anti-Rust Coating, Electroplated / Polished Finish |
| Applications | Oil & Gas, Water Treatment, Chemical Processing, Power Plants, Food & Beverage, HVAC Systems |
Dimensional Tolerances of Slip-on Flanges
| Dimension | Tolerance |
| Outside Diameter (OD) | ± 1.5 mm |
| Bolt Circle Diameter (BCD) | ± 1.0 mm |
| Bolt Hole Diameter | ± 0.8 mm |
| Flange Thickness (T) | ± 0.5 mm |
| Raised Face Height (RF) | ± 0.5 mm |
| Hub Diameter | ± 1.0 mm |
| Bore Diameter | ± 1.0 mm |
| Welding Neck Hub Height | ± 1.0 mm |
