Pinch valves for tailings transfer in Namibian uranium mine
83 hydraulically actuated Flowrox pinch valves were supplied for tailings transfer of 550 mm diameter to the Husab mine. Husab is the second largest uranium mine in the world. They are operating in a heavy duty tailings sector spread over 23 km area in the desert.
Tailings applications are usually very abrasive environments. Husab’s location in the desert adds to the harshness of the environment in which Flowrox pinch valves are operating. Valves were delivered as a part of the mine’s greenfield tailings operation. The delivery included valves, actuators and spare parts. Theoretical and practical competence training was also provided to the technical staff members to ensure a high level of plant operation.
Correct maintenance and sleeve replacement can significantly impact on the sleeve lifetime. The pinch valves in use at the mine are operated through a unique actuator solution using two mobile petrol-powered hydraulic power packs, which increase efficiency and the ease of operation in far distances.
As a part of the project, they were supplied all required valve spares to empower Husab staff to perform thorough maintenance and repairs as needed as well as service exchange valves.
The text has been updated in November 2021, due to the company name change to Neles.