The use of fluoroplastic alloy pump mechanical seal six major errors:

1. fluoroplastic alloy pump mechanical seal spring compression volume, the better the sealing effect is better?

In fact, too much spring compression can cause the friction pair to wear rapidly and lose instantly. Excessive compression causes the spring to lose the ability to adjust the dynamic ring face and cause the seal failure.

Is the tighter the tighter the ring seal ring of the 2. fluoroplastic alloy pump?

In fact, the ring seal ring is not beneficial. One is the increased wear, sealing ring and sleeve premature leakage; two is to increase the dynamic axial adjustment of the resistance movement, the frequent changes in working conditions can not adjust; three spring fatigue is easy to damage; the four is to make dynamic ring seal deformation, affecting sealing effect.

3. fluoroplastic alloy pump static ring tighter, the tighter the better?

The static ring sealing ring is basically in the static state, the relatively tight seal effect will be better, but too tight is also harmful. One is the static ring seal due to excessive deformation, which affects the sealing effect; two, the static ring material is mostly graphite, which is generally brittle, and the over force is easy to cause fragmentation. The three is the difficulty of installation and disassembly, which is very easy to damage the static ring.

4. fluoroplastic pump impeller lock the tighter the better the better?

In the leakage of mechanical seal, leakage between shaft and shaft is more common. Generally, the chemical pump impeller shaft between the leak is not the lock master lock, in fact lead to inter axis leakage of many factors, such as axial pad failure, migration, axis there are impurities, shaft and sleeve with a larger form bit error, contact surface damage, each part of the pump shaft in a gap between the long shaft thread will lead to inter axis leakage. The locking lock Overlocks will only cause premature failure of the axle pad. On the contrary, the locking button is properly locked, so that the shaft pad keeps a certain compression elasticity. During the operation, the lock mother will automatically lock at the right time, so that the shaft is always in a good sealing state.

5. the new one is better than the old one?

Relatively speaking, the use of new mechanical seal is better than the old, but the quality of the new mechanical seal material selection or not at that time, with the larger size of the error will affect the sealing effect; fluorine plastic pump and permeability in the polymerization medium, such as static ring without excessive wear, or not replaced at all. Because the static ring is in a static state for a long time in the static ring seat, the polymer and the impurity are deposited into a whole, which has a better sealing effect.

Is the 6. dismantling better than not dismantling?

In case of mechanical seal leakage, it is eager to remove repair. In fact, sometimes the seal is not damaged. The leakage can be eliminated by adjusting the working condition or adjusting the seal properly. In this way, it can not only avoid waste but also verify its own fault judgment ability, and accumulate maintenance experience to improve the quality of maintenance.

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