Lap joint flanges are similar to other type of flanges, but it does not have a raised face. Lap joint flanges are used in conjunction with a "lap joint stub end". The total initial cost of a lap joint flange along with a stub end is around one third...
Slip-on flange usually slips over the pipe. Slip-on flange are typically made with an inside diameter of flange slightly larger than the outside diameter of the pipe. This allows the slip on flange to slip over the pipe. Slip-on flanges are welded...
Threaded flanges are widely used in low pressure piping system. There is no welding involved while connecting the flanges to pipes or other equipment. Sometimes the flange may be welded around the joint after assembly, but it is not considered a...