Lap Joint Suppliers

A lap joint flange is a type of flange used in piping systems to connect pipes, valves, and other equipment. It consists of two main components: the stub end and the backing flange. The stub end is a short length of pipe with a flared or tapered end, while the backing flange is a circular disc with bolt holes that matches the outer diameter of the stub end.

The joint is created by placing the stub end behind the backing flange and aligning the tapered end with the bore of the flange. The assembly is then secured by bolting the flange to the pipe or equipment. One significant feature of lap joint flanges is that they allow for easy alignment and adjustment during installation, as the stub end can be rotated to achieve the desired orientation.

Lap joint flanges are commonly used in applications where frequent dismantling or maintenance is required, as they facilitate easy disassembly and reassembly. Additionally, they are suitable for systems where the material of the piping is different from that of the flange, as the stub end can be made of a different material than the backing flange.

These flanges are preferred in systems handling corrosive or abrasive materials, high-pressure conditions, or situations where thermal expansion and contraction are factors, due to their flexibility and ease of alignment. However, it's essential to ensure proper alignment and tight bolting to prevent leakage and maintain the integrity of the joint.