What type of pipe joint is available in both bolted and boltless designs?

The type of pipe joint that is available in both bolted and boltless designs is the flanged joint. Flanged joints are made using flanges, which are projecting flat rims or edges that facilitate the secure connection of pipes and fittings. Flanged joints can be fastened with bolts to create a sealed connection; however, there are also boltless designs that utilize mechanisms such as gaskets or clamps to achieve a secure fit without the need for bolts.

In many applications, the flexibility of having both bolted and boltless options allows for adaptability in various environments and requirements. This is particularly beneficial in areas where disassembly may be necessary for maintenance or inspection, as bolted flanges can be easily removed when necessary.

The other options do not have this flexibility. Welded joints are typically permanent and require cutting for disassembly. Compression joints, while easy to install and remove, do not feature bolted or boltless variants in the same sense as flanged joints. Ball and socket joints are a specific type of joint that allows for rotational movement and is not commonly associated with pipe connections in a bolted or boltless context.