Many of the larger gold mines have autoclaves that require special coatings and design features such as a relief cut in the ball. Copeland has been manufacturing these valves and their components and coatings for over 15 years.

Copper Mining Slurry Valve featuring 4 bolt packing assembly, wear resistant carbide overlay on all sealing areas and removable top plate. Valves are available in both side entry, top entry, floating and trunnion configurations.

Some autoclave valves just do not last as long as they should. Copeland can often rework  or retrofit these valves, saving the expensive titanium or duplex base metal but adding current features that allow the valve to operate trouble-free between turnarounds.

Copeland's downstream seat is locked into place to prevent erosion behind the seat but allows replacement of the seat when it comes time to repair the valve.

Mining Applications

Mining applications often introduce
their own set of conditions that are,
oftentimes, unique to their industry.
Copeland participated in the design
and manufacture of some of the
earliest mining ventures using these
types of valves over 15 years ago.

Special coatings, design features and
materials used in mining valves are
the norm rather than the exception.
Small differences in manufacturing
techniques and material selection can
increase the life of valves exposed to
silica and, often, corrosive agents and
high temperatures, to a significant
degree.

Copeland has been very successful in
recognizing and changing deficiencies
in design and, at the same time,
salvaging expensive valve bodies that
are either large in size or made of
alloys such as titanium or Zirconium.

Copeland Industries
Severe Service Ball Valves