Improving resistance against abrasion

Improving Wear Resistance in Rotary Valves – Improved Resistance, Improved Longevity

Industry: Mining & Minerals

The problem:

  • Our customer required Rotary Valves to handle 3.5t/hr of Nickel powder.
  • Due to the abrasive nature of the powder, the valves needed to withstand the wear that it causes.

The requirement:

  • To provide a pair of Rotary Valves that could handle the high throughput and better withstand the wear and tear caused by the product.

The solution:

  • We took our standard cast iron rotary valve and applied a tungsten carbide coating to the internal surfaces of the body and end covers. As well as superior wear resistance, Tungsten Carbide coatings provide excellent resistance to oxidation thanks to their incredibly strong bond strength and low porosity which seals off the base materials from its environment. In addition to this, we fabricated heavy duty rotors in stainless steel with thicker vanes and replaceable steel tips. Air purged seals and end cavity purge further help reduce wear to the valves.

The result:

  • The improved wear resistance, and valve longevity, reduced the frequency at which they were being replaced, saving maintenance time and cost.

Working in collaboration, creating tailored solutions, engineering process savings and efficiencies.

Back to Case Studies

Latest Case Studies

Innovative elongated Rotary Valve

Accurate feeding and filling of sachets, reduced segregation and a greater consistency in the particle distribution, which gave less variation in taste of the reconstituted beverage.

Large Valves with Atex Certification

Our 750mm rotary valve running at 12rpm could handle this volume with ease. We fitted a ten vane rotor with adjustable, abrasion resistant tips and stiffeners to provide...