Applications, Butterfly valves, Abrasive media, Corrosive media, Damages

How to handle abrasive media

Afshin Khosroshahi

| 5 min read

Abrasive media pose a challenge to a wide range of processes in the mining, pulp, and paper, bulk solids, water treatment, power plant construction, chemical, life science, marine, and steel industries, where it can cause both economic and ecological damages. This makes it so important to use reliable components that ensure both safe control of the transported media and an efficient plant operation.

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Abrasive media are abrasive liquids, gases, and solids that cause surface erosion through mechanical wear, disrupt the process, and pollute the final product. Typical abrasive media are sludge, cement, gravel, plastic granulate, chemical powders, sugar, flour, and gases with solid particles.

 

Optimal material combination

We at InterApp consider various factors to optimize the valves material combination, including:

  1. Media type
  2. Concentration [% or ppm]
  3. Total dissolved solids [TDS]
  4. Particle size [µm]
  5. Solid hard/crystalline or rather soft
  6. Pressure [barG]
  7. Temperature [°C]
  8. Flow rate [m/s] (pump flow, pneumatic transport, or static flow)
  9. Required tightness with closed butterfly valve (according to ANSI or ISO EN)
  10. Possible vacuum application [mbarA]
  11. Requirement that abrasion of the butterfly valve must not stain (e.g. no black particles in milk powder, flour, etc.)
  12. Approvals (FDA, EU10/2011, EC1935:2004, ATEX, ...)


Thanks to a wide range of combination options, our butterfly valves can be ideally composed to meet your specific needs.

What valve, disc and liner material combination suits your abrasive media best?

Learn more about in our brochure « Safe handling of abrasive media ».

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