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Optimizing fume extraction efficiency
The following factors help maximizing the
fume extraction efficiency of a ERGOFRESH
welding gun.
Welding positions and joint types
The most effective position for
fume extraction is the flat position
because the fumes naturally rise
upward.
The best optimization is shown on the left.
Wire material and gun angle
When welding with solid wires, weld with a
0 ... 15° pushing torch angle.
When welding with flux-cored wires, weld
with a 0 ... 15° pulling torch angle.
Effect of altitude
If the user is at a higher altitude than 0 m
above sea level, the torch requires a lower
negative pressure to reach the required air
flow at the nozzle.
The required negative pressure in different
altitudes is calculated with formula f x
negative pressure (kPa). See Technical data
for information on the negative pressure for
each torch model.
All trademarks are the property of their respective owners. The information and images are indicative and may be subject to change at any time without notice.
The following figures display how joint types affect fume capture efficiency.
0...15°
Effect factor of altitude
Altitude, z
Factor, f
m
0
1.00
250
0.97
500
0.94
750
0.91
1000
0.89
1250
0.86
1500
0.83
1750
0.81
2000
0.78
2250
0.76
2500
0.74
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0...15°
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