Hypertherm XPR460 - Page 49

Table 8 - Gas quality, pressure, and flow requirements
Gas Quality
System inlet pressure
(during gas flow
1
)
Flow rate
O
2
(oxygen) 99.5% pure, clean, dry, oil-
free
Core, CorePlus, VWI: 7.5
bar ± 0.4 (110 psi ± 5)
OptiMix: 7.9 bar ± 0.4 (115
psi ± 5)
104 slpm (220 scfh)
N
2
(nitrogen) 99.99% pure, clean, dry, oil-
free
Core, CorePlus, VWI: 7.5
bar ± 0.4 (110 psi ± 5)
OptiMix: 8.3 bar ± 0.4 (120
psi ± 5)
181 slpm (380 scfh)
Air
2
Clean, dry, oil free consis-
tent with 8573-1:2010 Class
1.4.2
Core, CorePlus, VWI: 7.5
bar ± 0.4 (110 psi ± 5)
OptiMix: 7.9 bar ± 0.4 (115
psi ± 5)
128 slpm (270 scfh)
H
2
(hydrogen) 99.995% pure OptiMix: 8.3 bar ± 0.4 (120
psi ± 5)
50 slpm (105 scfh)
Ar (argon) 99.99% pure; clean, dry, oil-
free
CorePlus, VWI: 7.5 bar ±
0.4 (110 psi ± 5)
OptiMix: 8.3 bar ± 0.4 (120
psi ± 5)
181 slpm (380 schf)
3
F5 (95% nitrogen, 5%
hydrogen)
99.98% pure VWI: 7.5 bar ± 0.4 (110 psi
± 5)
OptiMix: 7.9 bar ± 0.4 (115
psi ± 5)
40 slpm (85 scfh)
1 When there is no gas flow, make sure that the pressure at the gas inlet connection is less than 8.6 bar (125 psi) to prevent system alerts.
2 Air compressors must remove oil before they supply air to the cutting system.
3 Flow rate during argon marking and argon assist and during stainless steel cutting with an OptiMix gas connect console.
Table 9 - Air compressor requirements
Hypertherm recommends that air compressors supply air that complies with the requirements of ISO Standard
8573-1:2010 Class 1.4.2.
Maximum particle count in 1.0 m
3
:
• 20,000 at 0.1 microns - 0.5 microns
• 400 at 0.5 microns - 1.0 microns
• 10 at 1.0 microns - 5.0 microns
Maximum water vapor pressure dew point: 3°C (37°F)
Maximum oil concentration:
0.1 mg/m
3
(for aerosol, liquid, and vapor)
Qualifications and Requirements
2
49811530Instruction ManualXPR460