Lip sealing ring for use in fully and semi-automatic coffee machines has base body that can be cubic or cylindrical and that presses against cylinder wall with sealing ring to form piston seal; Y shape is used to exert sprung sealing force

摘要

The device has a base body that can be cubic or cylindrical and that presses against a cylinder wall with a sealing ring to form a piston seal. A Y shape is used to exert a sprung sealing force on the cylinder wall. The sealing ring is made of foodstuff compatible material and us resistant to coffee, coffee oil, silicon grease, water, ozone and oxygen.