There are a few types of steel flange pipe, many of which will provide a specific kind of assembly pattern for a particular kind of bolt. Efficiency is the name of the game when you or your company decides to look at this type of connection. One example is found in the world of industry, where most of the plumbing parts have already been determined. If these parts wear out or get damaged, you don’t want replacement to be a huge hassle. Instead of welding together new lengths, you can use the flanged connection system and swap it out much more easily.
In addition to the above noted advantage of being more efficient than using parts that need to be welded or soldered together, flange pipe offers another important benefit: it doesn’t require the use of special tools. If you want to put together lengths of steel without this type of bolted assembly, you’ll need to get out your welding torch or specialized and expensive threading equipment. There is another benefit that should be noted. Using welded lengths in an environment where the risk of fire is significant can be dangerous and invite trouble.
It should be understood that a flange pipe and the concept of welding is not always at cross-purposes. In fact, there are certain types that are not intended for bolting at all, but rather specifically designed to be welded. By using them in a welding capacity, you cut down on the risk of leaks, which can be substantial in traditional welded plumbing. Of course, introducing welding into the equation removes the ease of uncoupling that is present with a simple bolted assembly. Then again, the strength of the connection will be that much more solid.