Common faults and solutions of mechanical seals for still
1, the failure phenomenon: the sealing surface leakage. Fault causes: screw thread loose; sealing surface damage. Troubleshooting: will re tighten the screw; re sealing surface grinding and polishing.
2, the failure phenomenon: valve leakage. Causes of failure: the stem (needle), the valve port sealing surface damage. Troubleshooting: repair, replacement of the stem (needle), the valve port.
3, fault phenomenon: external magnetic rotation, the magnet does not turn the motor current is reduced. Fault: high reactor temperature, cooling circulation, the magnet magnetic faded due to high temperature. The hydrogenation reaction, the magnet sleeve crack, magnet expansion. Troubleshooting: notify the supplier, to replace the magnet.
4 failure phenomena: magnetic coupling in frictional noise. Fault: shaft, bearing wear, the gap is too large, the magnet rotation appears beating. Troubleshooting: contact with the supplier or manufacturer of mechanical seal, replacement of bearings, bushings.