Lunkenheimer angle slurry and tank bottom valves are among the highest quality and one of the most technologically advanced slurry valves on the market. These products are used for severe applications such as isolation in heavy scale, tank blanking in viscous media, and isolation on the bottom of tanks or pipes where scale is present in the pipeline. They utilize a grinding action to assure positive seating/shutoff and have the ability to handle heavy slurries including saturated and viscous media which cause severe scaling in the pipeline. Lunkenheimer provides solutions for applications where heavy scale could prevent a valve from closing, allowing extreme leakage downstream commonly found in mining applications in alumina, nickel, and gold processes.