Slip-on flanges (SO flanges) are a type of flange used to connect pipes, valves, pumps, and other equipment to form a piping system. They are designed to slide over the end of the pipe and are typically welded in place both inside and outside to provide sufficient strength and prevent leaks.

Slip-on flanges (SO flanges) are widely used in piping systems for various reasons. Here are some of the key benefits:

Ease of Installation:
Slip-on flanges are designed to slip over the pipe and then welded in place, making them easier to align and install compared to other types of flanges. This reduces labor costs and installation time.
Cost-Effective:
These flanges are generally less expensive than other types, such as weld neck flanges. Their simpler design and ease of installation contribute to lower overall costs.
Versatility:
Slip-on flanges are available in a wide range of sizes and materials, making them suitable for various applications, including those with low-pressure requirements.
Less Welding:
Unlike weld neck flanges that require precise welding, slip-on flanges need less welding, which can reduce the risk of welding defects and lower the chance of leaks.
Flexibility:
The design of slip-on flanges allows for slight adjustments in the position of the pipe, providing more flexibility during installation.

Reduced Stress:
The design of slip-on flanges helps distribute stress more evenly around the pipe, which can enhance the durability of the piping system.
Availability:
Due to their popularity and wide use, slip-on flanges are readily available from most suppliers, ensuring that replacements and additional parts can be sourced quickly.
Compatibility:
They can be used with a variety of pipe materials and are compatible with both small and large diameter pipes.

These benefit make slip-on flanges a popular choice for many industrial applications, particularly where cost, ease of installation, and flexibility are critical factors.

Benefits of Slip-on Flanges