FREE Water for Pump Bearings & Seals

摘要

Pumps with product-lubricated (wet) bearings require a supply of clean fluid for lubrication and temperature control. Many vertical sump pumps use this design. If the pumped fluid is free of solids, a small stream can be piped directly from the pump discharge to the bearings. A similar approach works well for mechanical seals and packing in horizontal pumps. But if the pumped fluid contains abrasives or other solids, an alternate solution is needed. Sump pumps often handle wastewater, which can contain abrasive particles. A common solution is to arrange a separate supply of clean water to flush wet bearings, seals and packings.