Heimsyphon Sodacapsule gasket

thingiverse

Old seltzer siphons made by Heimsiphon (and other brands) require a special cup shaped gasket to seal the C0² intake (where the soda capsule is inserted into the intake and opened with the thorn) Because these parts are no longer made, i had to create my own version and print it with flexible TPU. After cleaning the part, unscrew the soda capsule holder and the retainer ring from the gas intake and insert the gasket into the intake port. (see attached picture) It fiths very tight into the intake valve (a bit of force is needed) and seals extemely well against leaking gas. Tested on two Heimsiphon Model A from the early 1960s.