Hypertherm Powermax45 Service Manual - Manual (Page 29)

power supply setup
powermax
45 Service Manual 2-7
Connect the gas supply
Connect the gas supply to the power supply using an inert gas hose with a 9.5 mm (3/8 inch) internal diameter and a
1/4 NPT quick-disconnect coupler or a 1/4 NPT x G-1/4 BSPP (CE units) quick-disconnect coupler.
CAUTIoN
Synthetic lubricants containing esters that are used in some air compressors will damage
polycarbonates used in the air regulator bowl.
Additional gas filtration
When site conditions introduce moisture, oil, or other contaminants into the gas line, use a three-stage coalescing
filtration system, such as the Eliminizer filter kit (128647) available from Hypertherm distributors. A three-stage filtering
system works as shown below to clean contaminants from the gas supply.
The filtering system should be installed between the quick-disconnect coupler and the power supply.
5.5 – 6.9 bar (80 – 100 psi) gas supply
(maximum 9.3 bar or 135 psi) with a flow
rate of at least 165.2 l/min (350 scfh). The
recommended flow rate and pressure is 170 l/min
at 6.2 bar (360 scfh at 90 psi).
Gas supply Powermax45
Water and particle filter Oil filter Oil vapor filter