loose flange

Loose flanges, also known as lap joint flanges, are a versatile type of pipe flange designed to be used in conjunction with stub ends or lap joint fittings. Unlike other flange types, the loose flange is not welded or fixed to the pipe, allowing it to rotate freely around the pipe or fitting.

This design offers several practical advantages, especially in systems where frequent disassembly or alignment is required. The ability to easily adjust the bolt holes simplifies installation and maintenance, making it ideal for applications in confined or hard-to-reach spaces.

Loose flanges are commonly used in low-pressure piping systems and non-critical applications where corrosion resistance, ease of assembly, and cost-efficiency are priorities. They are often seen in industries such as food processing, chemical manufacturing, water treatment, and shipbuilding.

Because the sealing surface is provided by the stub end rather than the flange itself, the loose flange experiences less wear over time. This feature helps extend the service life of the flange and ensures a reliable connection with reduced risk of leakage.

With their flexibility, convenience, and broad compatibility, loose flanges provide an efficient solution for modern piping systems that require both performance and practicality.