From the appearance, it is a flat-welded steel pipe flange with a plate, and then there is a connection made by a loose sleeve. That is to give people a very intuitive impression that this loose-fitting product is actually the inner diameter of the flange product, and then add its sealing surface, etc. - and there is a short section at the back - just - looking at this, it seems like It is a flanging and matching, if it is a loose flange of the same material, what is the material of its plate part? And what kind of material is this part of the loose sleeve, and others are not, such as our copper flange product.
The loose flange is to use flanging, steel ring, etc. to put the flange on the pipe end, and the flange can move on the pipe end. The steel ring or flange is the sealing surface, and the function of the flange is to compress them. It can be seen that the loose flange is not in contact with the medium due to being blocked by the steel ring or flanging.
Loose flanges are suitable for the connection of steel, aluminum and other non-ferrous metals and stainless acid-resistant steel containers and corrosion-resistant pipelines.
Loose flanges are movable flanges, which are generally matched to water supply and drainage fittings (the most common on expansion joints). When the manufacturer leaves the factory, there are flanges at both ends of the expansion joints, which are directly connected to the pipelines and equipment in the project. With bolts, it is the kind of flange with a looper. It is generally used on pipes. In that case, loosening the bolts can rotate the pipes on both sides and then tighten them, which can be more convenient to disassemble and assemble the pipes. Loose flanges are also called looper flanges.
