Air Blasting Tip 5 – Media Flow Regulation Requires To Be Optimised On A Pressure System

 

Too few blast media particles provide poor productivity but too many can also have the same effect as the air to blast media ratio becomes too heavy or imbalanced.

Symptoms of poor settings are too much air, not enough blast media or too much blast media, or not enough air.

  1. To optimise, first close off the blast media pinch valve, referred to in our introduction Part 2 allowing only the maximum flow of compressed air at the desired constant pressure to the nozzle.
  2.  Next, open the blast media pinch valve very slowly until an even constant flow of  blast media is achieved.
  3. By over feeding the blast media to the air, a “slug” or high quantity of slow moving blast media will be discharged.
  4. In order to overcome Point 3 above, the pinch valve requires to be slowly closed until you find that smooth and consistent delivery point.
  5. It is easy to recognise this point after which, lock the pinch valve in position to retain integrity.

ST1400SFC9555

 

Click to read Tip No. 6 On the Venturie/Suction delivery system, alternative regulation requires attention

 

For more information on Shot Blasting please visit www.rosler.com

Haydn Kitchen New APost written by
Haydn Kitchen
Shot Blasting Technical Manager

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