The replacement of a graphite packing system on a cyclone feed pump with the more efficient AESSEAL® CDPH™ double mechanical seal is saving a Botswana mining company more than US$20,000 a year in repair and maintenance costs.
The repeated failure of seals on heater drainage pumps was causing problems for a power generation company in Botswana.
Warman F-frame pumps were sealed with gland packing which required 19 US gallons (71 litres) per minute.