Flanges are manufactured worldwide and are used in many industries. High quality flanges can be found all across the UK, but at Chemipetro, we supply a range of flanges that conform to most standards.

An explanation of a few standard type flanges

There are different types of flanges on the market, including lap joint flanges, weld neck flanges, slip-on and blind flanges as well as screwed, long, orifice, spade, spacer, spectacle, swivel-ring, cross-over and adaptor flanges, all with their own purposes.

The first four flanges will now be explained so that you get a brief understanding of what they are used for.

Firstly, lap joint flanges are used where joints need to be broken apart on a regular basis in order for it to be cleaned as well as where it is necessary to ensure bolt alignment. Lap joint flanges are quite similar to slip-on flanges. These are manufactured basically to slide over the pipes that they are intended to be weld onto. These flanges are not usually used on high stress applications due to the low hub and the way these flanges are attached.

Weld neck flanges are designed to match the inside of pipes. This is so that there will be no restriction to the flow of products. Weld neck flanges prevent turbulence and slows down the occurrence of erosion. These flanges can withstand high pressures and great temperatures.

Lastly, blind flanges are basically used as a seal for pipe ends. It is designed without a bore and serves as access covers for pressure vessels.