In pipe fittings, a Lap Joint Flange (sometimes referred to as a Loose Flange) is a device that is composed of two sections that, when connected together, seem to be a weld neck flange, and it is butt-welded to the pipes. When the flange is not butt welded to the pipes, it has the appearance of a loose slip-on flange.
Lap joint flanges are made up of a number of individual parts. It is made up of two parts: a sleeve known as a "Stub-end," which looks like a tiny section of pipe with a thin shoulder on one end and a butt weld on the other end, which is known as the hub; the second part is a sleeve known as a "Stub-end." The hub and the shoulder are the names given to the other two parts. Although the narrow shoulder dimensions of the stub-end are comparable to those of a weld neck flange, the butt weld end of the stub-end is smaller in size than the weld neck flange, and the diameter and thickness of the stub-end are dictated by the pipe to which it is to be connected. To bring the hub and sleeve together, the back face of the hub's face has been rounded to create a seamless transition.
In addition to the lap joint flange, a backing flange must be taken into consideration. Despite the fact that the backing flange's measurements are the same as those of other common flanges (outer diameter, inside diameter, bolt hole, and so on), it does not have an elevated face (the stub end has the raised face ). On one side of the lap joint flange, the backside, there is a little shoulder that is square cut in the center of the pipe hole, or the center of the pipe hole, on the other side of the lap joint flange, on the front side. With a flat face on the front side, and an outside fillet at the center hole that matches the fillet on the “Stub-end” piece on the rear side, this component is easy to work with. It is necessary to slip on the flange section of the Lap-joint flange assembly to the stub-end before the sleeve can be welded to the pipe or fitting that will be utilized as a connection point. Neither the flange nor any other part of it is welded or otherwise fixed in any way, shape, or form. It has the ability to spin freely in order to achieve precise alignment with whatever it is joining or combining with.
A common application for lap junction flanges is in low-pressure piping systems, and Flangeschin.com can produce the flanges to customer requirements, supporting customers in saving money and finding solutions to application issues.
