What is a common measure to prevent slurry abrasives from damaging a pump seal?

Utilizing an external flush system is commonly employed to prevent slurry abrasives from damaging a pump seal. This technique involves circulating clean fluid around the seal area to create a barrier against the abrasive materials present in the slurry. By doing so, the external flush system helps to wash away particles that could otherwise wear down the seal, thereby extending its lifespan and maintaining optimal pump performance.

Other methods, while they may have some benefits, are not as effective in directly addressing the issue posed by abrasive materials. For example, sealing compounds might not provide sufficient protection against wear from slurries, and while a pressure differential can help prevent leaks, it does not necessarily address the presence of abrasives. Magnetic seals, although innovative and useful in certain circumstances, may not provide adequate protection in the harsh conditions that slurries often create, as the magnetic sealing technology typically focuses more on preventing leaks rather than dealing specifically with abrasive substances in the fluid.