Flanges are convenient for piping connections.

pipe joint
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There are many ways to connect piping in the world.

Personally, I think flanges are better for chemical plants.

Not easy to leak

Chemical plants handle many flammable and dangerous substances.

I’ll be in trouble if it leaks

To minimize leakage, you must consider the piping connection method.

There are two possible patterns: flange and welding.

Although welding appears to have the lowest risk of leakage, there is a risk of corrosion.

Gaskets can leak even on flanges

Screws loosen easily, and Soldered have poor sealing properties.

no size limit

Flange connections have fewer restrictions on connection size.

The same goes for welded connections.

There is a limit to the size of screws

Do not use fire on site

Fire must be avoided when connecting pipes on site during operation.

When considering piping maintenance, it is very important to be able to install and remove pipes during operation.

If it is welded, it will be difficult to remove, and you will not be able to use fire to install it.

In this sense, I think flanging is more suitable for chemical plants than welding.