In the daily use of fully automatic or commercial coffee machines, many users may encounter the following annoyance: when the coffee machine operates under high temperature and high pressure, water or air leakage occurs at the seal ring, which not only affects the taste but may also pose a safety hazard. So, why does the seal ring "fail"? And how can it be quickly resolved?
Common reasons for water leakage from the seal ring include the impact of the instantaneous high pressure during brewing on the aging or deformed seal ring; in a high - temperature water vapor environment for a long time, sealing materials such as rubber rings (e.g., silicone rubber, fluororubber) are prone to hardening and cracking; the dry friction between the seal ring and metal parts due to lack of lubrication, resulting in an enlarged gap and reduced sealing performance; and the use of ordinary industrial lubricating grease, which can cause the seal ring to expand, corrode, and even contaminate the beverage.
Engineers from Baoxing recommend promptly adding Baoxing multi - purpose food - grade waterproof lubricating grease (recommended model: BX - 455 series) to the seal ring of the coffee machine. The grease can form a lubricating film, effectively filling the tiny gaps between the sealing contact surfaces. At the same time, it reduces the operating resistance of the seal ring to delay wear.
This lubricating grease can maintain stable performance in high - temperature and high - humidity environments, avoid emulsification and loss. It meets NSF H1 / FDA certification standards, is safe and will not contaminate coffee liquid. It also has strong compatibility and will not corrode or soften most sealing materials such as EPDM, fluororubber, and silicone rubber. It is suitable for the seal rings of the brewing chamber of coffee machines, the seal rings of water pumps, the connection seals of steam passages, and piston motion seals.
Baoxing has provided customized lubrication solutions for many coffee machine brands. Equipment manufacturers and parts manufacturers are welcome to learn more or apply for free sample trials!
