Leakage in the mechanical seal jacket of the alkali pump
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The reaction tank uses an alkaline pump to facilitate circulation and ensure thorough reaction; the material involved is a 90-degree barium hydroxide solution. For cooling the mechanical seal, circulating water from a cooling tower is used (during summer, when temperatures are high, the water temperature is around 34 degrees). However, basically every month, the jacket of the mechanical seal starts to leak. I would like to know what the reasons for this are and what preventive measures can be taken
If there is nothing wrong with the surfaces of the friction pair, it might be an issue with the material chosen for the O-ring.
What type of mechanical seal? It would be best to send a few pictures so everyone can analyze it and determine exactly where the leakage is occurring
There should be no problem with the graphite components in the mechanical seal; it is likely an issue with the hardening of the O-ring on the stationary ring or a failure of the spring on the rotating ring.