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SchuF Fetterolf designs and manufactures a range of valves for mining and mineral processing applications. The valves can be used to control, divert, isolate and sample gases, liquids, slurries and powders.
SchuF specialises in producing valves for the most severe service conditions found in the mining and mineral processing industry. These include valves capable of handling high pressure letdown (to 200bar), high solids content, abrasive materials, corrosive chemicals or a combination of all four.
Oxidative leaching processes such as HPAL or Activox (for copper, nickel, cobalt and gold) push every piece of equipment to their limit and therefore require special severe service valves. SchuF provides control, isolation, and feed or drain valves customised according to the specific mineral ore process conditions and the piping/equipment requirements.
Whether it is for an HPAL process (5,400kPa) or a mild pressure (1,000kPa) Activox leaching process, SchuF has an appropriate valve design.
Applications in mineral processing for our severe service valves include:
Feed or drain valves located in or around the autoclave or flash tower must handle severe conditions, including high-temperature acid slurry and high solids content. SchuF provides valves in duplex, hastelloy or titanium (of 1in to 36in and ASME 2500# standard) with custom gaskets, and special coatings for the ram and valve seat. The valves have a number of advantages:
SchuF provides control valves suitable for pressure letdown, feed and level control in and around autoclaves and flash-cooling towers. Key features include:
Its expertise in material and long-life trim design enables SchuF to minimise the effects of corrosion and scaling common in mineral processing applications.
The isolation of pumps, vessels and other equipment is critical to ensure operational efficiency and safety of mineral ore processing facilities. SchuF provides a range of isolation valves including Y-globe, diverter, gate, angle and high pressure isolation valves. In addition to special body materials and trim, SchuF Y-globe and angle-type isolation valves benefit from:
SchuF Fetterolf designs and manufactures a broad range of valves for the production of alumina from bauxite. These include a 45° Y-type (with monobloc body, split-body in line and tank bottom) and 90° angle-type valves (including bayonet valves, three-way valves, check valves and drain and sample valves). They are available in sizes from 2in to 36in and in ASME 150# to 900# classes.
The SchuF Fetterolf Group has successfully installed the world's most advanced diverter and control valves in the Shenhua coal liquefaction plant in Inner Mongolia. Coal Liquefaction is the process of converting coal powder into liquid hydrocarbons (gasoline, diesel and kerosene).The p
