Slip on weld Flanges are slipped over the pipe and welded (usually both inside and outside) to provide strength and prevent leakage. Slip-on Flanges are at the low cost end of the scale, and do not require high accuracy when cutting the pipe to length. These SO Flanges can sometimes have a boss or hub, and can be made with a bore to suit either pipe or tube.
Slip-On Flange manufacturer Orientsteel supplies Slip On Flanges, SO Flanges, Slip-On Flanges in forged steel, Stainless Steel, alloy steel, etc.