Tip #1 The hidden cost of inefficiency

The hidden cost of inefficiency: Why the blast nozzle is everything

The majority of blast nozzles you'll find on the market today are venturi nozzles rather than the traditional straight nozzle. The venturi nozzle acts a bit like a jet engine, constricting the passage of the air-abrasive mix briefly at the throat, then expanding it into an open cavity allowing the nozzle to shoot out the abrasive at roughly 450 mph, when operating properly.

“Efficiency is doing things right; effectiveness is doing the right things.” - Peter Drucker

The two main issues associated with blast nozzles are either the size of the bore or the pressure at the nozzle. As a result, the blast pattern and efficiency of the blast can be greatly effected by the condition of the nozzle. Fortunately, blast nozzles are very inexpensive and are easy to check for damage.

You will now understand the true importance of not using worn nozzles or not changing nozzles on a regular basis, as worn nozzles equal loss in pressure.

For every 1 psi of pressure loss, you lose 1.5% of your efficiency.

To explain, if your pressure was to drop from 100 psi to 85 psi, you'd then only be working at 77.5% efficiency. Consequently, it is much more cost effective to change your blast nozzles on a regular basis – even if they doesn't look worn – saving you time, labour costs and blast abrasive.

View our range of efficient blast nozzles.

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