Objective: South American copper mines were using conventional seals which required ~9 gallons a minute of cooling water per pump. The mines are located in one of the driest regions on earth and at 9,000 feet above sea level. The cost – and environmental impact – of cooling water was extremely high.
Application: Conventional pump seals were replaced with mechanical seals utilizing UNCD coated tungsten carbide faces.
Results: The mechanical seals with UNCD faces have met the operating requirements without the use of auxiliary cooling water. Each diamond seal is saving the end-user $50K-$400K in reduced water usage.