Choosing the Correct Nozzle

Here at Applied, we set the standard in performance and productivity with our unique family of nozzles featuring Tungsten Carbide inserts offering exceptionally good toughness and durability. When choosing a nozzle, first you must take into account that the compressor you have will support the minimum nozzle requirements. The compressor must provide a minimum of 50% more air volume than what anew nozzle would require to develop the correct blasting pressure ensuring persistent good results.

When choosing a nozzle, the nozzle entry throat must be the exact diameter of the blast hose to reduce pressure drop, wear points and excessive internal turbulence. In order to choose a nozzle, the desired blast pattern must be determined first.

A straight bore nozzle will create a tight blast pattern for small jobs such as carving stone, cleaning rails or steps, weld seam cleaning, etc. Venturi bore nozzles create a wide blast pattern and increase abrasive velocity by up to 100%. Double Venturi bore nozzles produce and even larger blasting pattern with minimal abrasive velocity loss. Wide throat nozzles produce the largest blast pattern (60% larger) at higher pressures with lower abrasive use. Angle blast nozzles are used instead of conventional blast nozzles where a user must blast into pipe internals, behind ledges, flanges of beams, inside cavities and the awkward to reach places.

Using the Nozzle Air and Pressure Requirements Chart, a user can identify what bore size the nozzle must be for maximised efficiency. For example, using a 140 CFM compressor at a recommended 100 PSI, the chart shows that a 8mm nozzle would be most suited to maximise productivity.

Nozzle Air and Pressure Requirements Chart

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