Slip-on flanges are one of the most popular types of pipe fittings used in various industries. They are easy to install and provide a secure connection between two pipes, but there’s a lot more to them than meets the eye. In this blog post, we’ll look at what slip-on flanges are, their uses, welding techniques, and types.
What is Slip On Flanges?
Slip-on flanges (SOF) are essential in pipeline systems and piping installations. They are used to connect two pipes together by providing a secure seal or joint. The slip-on flange is made up of four components: the body, the face, the neck and the hub. The body provides strength and pressure containment for the system, while the face forms part of the joint that connects two pipes together. The neck is used for bolting and welding purposes, while the hub provides additional support for stability.
Slip-On Flanges Uses
The most common use for slip-on flanges is to combine two pieces of pipe to create a pipeline system or piping installation. This type of fitting can be used in both low-pressure and higher-pressure applications, such as industrial settings where high-temperature fluids need to be transferred through pipelines quickly and safely. Depending on application requirements, these flanges can also be used with pipe fittings such as threaded connections, welded connections, and socket welded connections.
Slip On Flanges Welding
Slip-on flanges can be connected with either welding or bolting methods. Welding is usually preferred when dealing with higher-pressure applications since it provides more excellent safety than bolting methods due to its ability to contain better potential leaks caused by pressure buildup within the system. Welding requires special tools and equipment, such as an arc welder or TIG welder for stainless steel materials, so it should only be done by experienced personnel who understand how to properly weld these components without compromising their integrity or safety features.
Slip On Flanges Types
Slip-on flanges come in various sizes, styles and materials depending on application requirements and user preferences. Commonly available materials include carbon steel, stainless steel and aluminium alloys which all have different properties that determine their suitability for certain types of pipelines or installations based on factors such as temperature range, corrosion resistance levels etc. Additionally, SOF’s come in different shapes, such as round or oval, depending on application needs and varying thicknesses ranging from 6mm up to 100mm thick, depending upon customer specifications and requirements.
Slip On Flanges Dimensions
| Size in Inch | Size in mm | Outer Dia. | Flange Thick. | Hub OD | Flange Length | RF Dia. | RF Height | PCD | Socket Bore | No of Bolts | Bolt Size UNC | Machine Bolt Length | RF Stud Length | Hole Size | ISO Stud Size | Weight in kg |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | B | C | D | E | F | G | H | |||||||||
| 1/2 | 15 | 90 | 9.6 | 30 | 14 | 34.9 | 2 | 60.3 | 22.2 | 4 | 1/2 | 50 | 55 | 5/8 | M14 | 0.8 |
| 3/4 | 20 | 100 | 11.2 | 38 | 14 | 42.9 | 2 | 69.9 | 27.7 | 4 | 1/2 | 50 | 65 | 5/8 | M14 | 0.9 |
| 1 | 25 | 110 | 12.7 | 49 | 16 | 50.8 | 2 | 79.4 | 34.5 | 4 | 1/2 | 55 | 65 | 5/8 | M14 | 0.9 |
| 1 1/4 | 32 | 115 | 14.3 | 59 | 19 | 63.5 | 2 | 88.9 | 43.2 | 4 | 1/2 | 55 | 70 | 5/8 | M14 | 1.4 |
| 1 1/2 | 40 | 125 | 15.9 | 65 | 21 | 73 | 2 | 98.4 | 49.5 | 4 | 1/2 | 65 | 70 | 5/8 | M14 | 1.4 |
| 2 | 50 | 150 | 17.5 | 78 | 24 | 92.1 | 2 | 120.7 | 61.9 | 4 | 5/8 | 70 | 85 | 3/4 | M16 | 2.3 |
| 2 1/2 | 65 | 180 | 20.7 | 90 | 27 | 104.8 | 2 | 139.7 | 74.6 | 4 | 5/8 | 75 | 90 | 3/4 | M16 | 3.2 |
| 3 | 80 | 190 | 22.3 | 108 | 29 | 127 | 2 | 152.4 | 90.7 | 4 | 5/8 | 75 | 90 | 3/4 | M16 | 3.7 |
| 3 1/2 | 90 | 215 | 22.3 | 122 | 30 | 139.7 | 2 | 177.8 | 103.4 | 8 | 5/8 | 75 | 90 | 3/4 | M16 | 5 |
| 4 | 100 | 230 | 22.3 | 135 | 32 | 157.2 | 2 | 190.5 | 116.1 | 8 | 5/8 | 75 | 90 | 3/4 | M16 | 5.9 |
| 5 | 125 | 255 | 22.3 | 164 | 35 | 185.7 | 2 | 215.9 | 143.8 | 8 | 3/4 | 85 | 95 | 7/8 | M20 | 6.8 |
| 6 | 150 | 280 | 23.9 | 192 | 38 | 215.9 | 2 | 241.3 | 170.7 | 8 | 3/4 | 85 | 100 | 7/8 | M20 | 8.6 |
| 8 | 200 | 345 | 27 | 246 | 43 | 269.9 | 2 | 298.5 | 221.5 | 8 | 3/4 | 90 | 110 | 7/8 | M20 | 13.7 |
| 10 | 250 | 405 | 28.6 | 305 | 48 | 323.8 | 2 | 362 | 276.2 | 12 | 7/8 | 100 | 115 | 1 | M24 | 19.5 |
| 12 | 300 | 485 | 30.2 | 365 | 54 | 381 | 2 | 431.8 | 327 | 12 | 7/8 | 100 | 120 | 1 | M24 | 29 |
| 14 | 350 | 535 | 33.4 | 400 | 56 | 412.8 | 2 | 476.3 | 359.2 | 12 | 1 | 115 | 135 | 1 1/8 | M27 | 41 |
| 16 | 400 | 595 | 35 | 457 | 62 | 469.9 | 2 | 539.8 | 410.5 | 16 | 1 | 115 | 135 | 1 1/8 | M27 | 54 |
| 18 | 450 | 635 | 38.1 | 505 | 67 | 533.4 | 2 | 577.9 | 461.8 | 16 | 1 1/8 | 125 | 145 | 1 1/4 | M30 | 59 |
| 20 | 500 | 700 | 41.3 | 559 | 71 | 584.2 | 2 | 635 | 513.1 | 20 | 1 1/8 | 140 | 160 | 1 1/4 | M30 | 75 |
| 24 | 600 | 815 | 46.1 | 663 | 81 | 692.2 | 2 | 749.3 | 616 | 20 | 1 1/4 | 150 | 170 | 1 3/8 | M33 | 100 |
Conclusion
In conclusion, slip-on flanges are an essential component when it comes to securely joining two pipes within any pipeline system or installation setup, whether in residential or commercial use cases. There are many different sizes and shapes available, along with other materials that must be carefully chosen according to specific needs; additionally, they can be connected using either welding or bolting methods depending upon preference/application requirements. So if you’re looking for a secure connection between your pipes, then a slip-on flange might be your best option!
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