What type of flange is commonly used in pipe connections to allow for misalignment?

The Van Stone flange is specifically designed to accommodate misalignment in pipe connections. It features a slip-on design that allows for easier adjustment during installation, making it ideal for situations where precise alignment is challenging. This flange type can provide a tight seal while also allowing for some flexibility in positioning, which is crucial in many piping applications.

The design of the Van Stone flange typically includes a tapered face, which helps in creating a seal while enabling some lateral movement between the pipes. This characteristic makes it suitable for systems where vibrations, thermal expansion, or other factors might cause misalignment over time.

In contrast, the other types of flanges mentioned have more rigid designs. For instance, slip-on flanges typically require more precise alignment during installation, and any misalignment can compromise the integrity of the joint. Weld neck flanges are also designed for relatively rigid structures and do not offer the same level of flexibility as the Van Stone flange. Blind flanges, while useful for sealing off ends of pipes, do not lend themselves to adjustment or alignment adjustments in the same manner.