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HomeTechDifference Between Lap Joint Flange and Slip-On Flange

Difference Between Lap Joint Flange and Slip-On Flange

In plumbing systems, slip-on and lap joint flanges are two pipe flanges. Assembling slip-on flanges is easy because the bore goes through the whole length of the flange. Loss backing flanges and short ends make up lap joint flanges, which allow for more positioning options. Different connection ways make them different, which affects how easy they are to install and how well they work in various situations. It is essential to understand these differences to choose the correct flange for your plumbing needs. 

What Is a Lap Joint Flange?

The two parts within the lap joint plate fit together securely, thanks to holes. This type of joint is easy to set up and keep up because it doesn’t need to be welded or have any special tools. Because it is flexible, it can be changed depending on the size and shape of the pipes tied to it. Even though it is easy to use and flexible, it might not be able to handle as much pressure as slip-on flanges, so it might need extra support for safety in high-pressure situations. Learn more about flanges.

What Is a Slip-on Flange?

Two metal pieces are joined together using “slip-on welding,” which creates a smooth and even weld. The benefit of this design is that it can handle higher pressure levels than other pipe joints. Installation is more complex, though, and it could be more flexible. Due to the possibility of rust, this flange type may need to be inspected regularly in places like gas lines or fire safety systems.

Difference In Slip-on Flanges and Lap Joint Flanges

Purpose:

Pipes are connected to slip-on flanges and can be quickly inspected and cleaned with lap joint flanges.

Installation: 

Slip-on flanges are more straightforward to install than lap joint flanges because they don’t need to be welded. On the other hand, lap joint plates are more complex to install because they need to be welded.

Welded: 

In this case, the flange is soldered to the pipe, and it has a lip that sticks out past the edge of the pipe. If the flange is not bonded to the pipe and the lip doesn’t go past the edge of the pipe, it’s called a lap joint flange.

Leak: 

The lip on slip-on flanges extends past the pipe’s edge, making them more likely to leak than lap joint flanges. Lap joint flanges have less chance of leaking because the lip doesn’t extend past the pipe’s edge.

Design: 

The slip-on flange’s inner diameter matches the pipe’s inner diameter. A lap joint flange, on the other hand, has a circle stub end that fits into a matched lap joint stub end.

Strength: 

Lap joint flanges are stronger than slip-on flanges because they don’t need border welds to stay together. They connect to a pipe with a welded short end.

Cost: 

Slip-on flanges are cheaper than lap joint flanges because they don’t need to be welded. On the other hand, lap joint plates cost more because they need to be welded.

Application Of Slip-On Flanges

  • Slip-on flanges connect two pipe parts and create a plumbing network or setup that can work in low- and high-pressure situations. This includes industrial settings where hot liquids must be moved quickly and safely.
  • Depending on the purpose, these flanges can be used with different pipe fittings, such as threaded, welded, or socket-welded links.
  • Slip-on flanges work very well and only leak occasionally. They’re best for fluids working at low pressure. They’re great for emergency water lines, cooling water lines, and low-pressure compressed air lines.
  • Slip-on flanges are also best for process lines because they help control the flow of chemicals like steam, oil, gas, and more. They work best in systems with low pressure and high temperatures.

Applications of Lap Joint Flanges

Food and Beverage Industry

Keeping things clean and avoiding contamination is vital in the food and beverage business. Keeping industrial pipes clean and germ-free is impossible without lap joint flanges. These rings make it easy to take apart and access important parts for thorough cleaning and sterilization.

Water Treatment Facilities

Water treatment plants need to be maintained and fixed regularly to ensure the water is treated and distributed efficiently. The best option is lap joint flanges, which let you get to essential parts quickly without stopping the whole system. 

Chemical Processing Business

Workers must deal with harsh chemicals, different pressures, and regular system upkeep in the chemical processing business. Lap Joint Flanges are perfect for this situation because they are easy to take apart. They also work great in chemical plants where pipes must be checked, fixed, and maintained regularly.

Conclusion:

Knowing the difference between slip-on and lap joint flanges is essential for choosing the best one for your project or purpose. Lap joint flanges give you more design and fitting options, while slip-on flanges work best in high-pressure situations. When choosing between these two types, consider your wants and income. This shows how important it is to do a lot of study before making a choice.

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