Bunghole seal for beer cask - has threaded plastics insert engaged by dogs at end of bung

摘要

The bung (14) for the beer cask is sealed into the threaded hole in the cask using a moulded plastic insert sleeve (9) which takes up the space between the two threads, and which is driven by special dogs at the bottom end of the bung. The inside of the sleeve has tags which line up with the dogs on the bung so that the whole assembly is easily driven in.