Stainless loose flanges
A stainless lap joint flange (loose flange) is a device which consist of two pieces. it looks like a weld neck flange together, and it is butt welded with the pipes, it also like a loose slip-on flange.
First piece of the lap joint flange is a sleeve called a “stub-end” and is shaped like a short piece of pipe with a narrow shoulder on one end and a butt weld end on the other end which called the hub.
The narrow shoulder dimensions is like the rase face of the flange,the butt weld end of the stub-end is like the neck of the weld neck flange, the diameter and thickness is according to the pipe for connection.The back face of the hub has a rounded transition that joins the hub to the sleeve.
The other piece of a lap joint flange is the backing flange. Backing flange dimensions are same with other common flanges(O.D. ,PCD,Bolt hole etc.),however it does not have a raised face (the stub end has the raised face).On One side of the lap joint flange,the backside,has a slight shoulder that is square cut at the center or pipe hole.
The front side has flat face and at the center hole an outside fillet to match the fillet of the “Stub-end” piece.The flange part of the Lap-joint flange assembly is slipped on to the stub-end prior to the sleeve being welded to the pipe or fitting for connection.The flange itself is not welded or fixed in any way.It is free to spin for proper alignment with what ever it is joining to.
What are the advantages of using stainless loose flanges in piping systems?
Stainless loose flanges offer several advantages, including ease of installation and maintenance. They allow for quick assembly and disassembly of the piping system, which is essential for applications requiring frequent repairs or inspections. Additionally, they provide excellent resistance to corrosion and high temperatures, making them suitable for various industrial applications.
How do I choose the right stainless loose flange for my project?
Choosing the right stainless loose flange involves considering factors such as pressure rating, size, and material compatibility. For example, you can select Stainless loose flanges EN1092-1, PN10 for moderate pressure applications or opt for Stainless loose flanges EN1092-1, PN40 for high-pressure environments. Always ensure that the flange material is compatible with the fluids being transported.
What is the difference between a weld neck flange and a loose flange?
A weld neck flange is designed to be welded to a pipe, providing a strong and permanent connection. In contrast, a loose flange can slip over the pipe without a fixed connection, allowing it to be removed easily for maintenance. For applications requiring flexibility, a Stainless loose flanges EN1092-1, PN16 may be ideal as they facilitate quick adjustments without compromising the integrity of the piping system.