The mechanical seal does not leak at low speeds, but leaks when rotating at high speeds

There could be several reasons for this issue. 1. Excessive wear of the sealing surface: Wear is more severe during high-speed operation, resulting in a reduced sealing effect. 2. Sealing assembly issue: If vibration occurs during high-speed operation, it may affect the sealing performance of the mechanical seal. 3. Insufficient spring pressure: In mechanical seals equipped with springs, if the spring pressure is insufficient, the seal can still be maintained at low speeds, but it may not be able to hold under high speeds. 4. Poor sealing lubrication: If the lubrication of the sealing surface is inadequate, there may be no leakage at low speeds; however, at high speeds, increased friction can lead to problems with the seal. To resolve this issue, professionals are needed to inspect, adjust, or replace the damaged components. If attempting to resolve the issue on your own does not yield satisfactory results, it is recommended to seek a manufacturer of mechanical seals or professional technicians for repairs. .

It is initially suspected that the sealing surface, which plays a key role in sealing, is uneven or damaged