Alexander Comley Ltd products

End Caps are used for blocking off or sealing the end of a pipeline. The end cap is welded on at its weld prep to the relevant sized pipe within the pipeline that requires blocking off/sealing. Once in place, unlike a blind flange that can be unbolted to allow access to the pipeline, the end cap is firmly fixed. At Alexander Comley we have our own presses on site. These can press from plate and manufacture European end caps.

Stub ends are used to connect pipes together along with a lap joint or backing flange. A stub end is welded to the end of each pipe that requires connecting with a lap join flange slip over the top of it before welding. Because the stub end has a serrated face it acts to seal both the pipes together. The lap joint flange is then bolted together with the mating lap joint flange to secure it all in place. This in turn means that the pipes can be opened easily to inspect or clean them, as they are not welded together, merely bolted together. At Alexander Comley we press our own stub ends from seamless European pipes.