Supply gas plumbing, Supply gas plumbing -51 – Hypertherm HyIntensity Fiber Laser Rev.3 User Manual
Page 99

InstallatIon
HyIntensity Fiber Laser
Instruction Manual – 807090 Revision 3
2-51
Supply gas plumbing
Rigid copper plumbing or suitable flexible hose may be used for all gas supplies, but they must meet the pressure
requirements (see section 1, Specifications). Do not use steel or aluminum pipe.
After installation, pressurize the entire system and check for leaks.
Recommended hose diameters are 10 mm (3/8 in) for lengths < 25 m (82 ft) and 12 mm (1/2 in) for
lengths > 25 m (82 ft).
For flexible-hose systems, use a hose designed for inert gas to carry air, nitrogen.
WARNING
CUttING WItH OXyGEN CAN CAUSE FIRE OR EXPLOSION
Cutting with oxygen as the assist gas can cause a potential fire hazard due to the oxygen-enriched
atmosphere that it creates. As a precaution, Hypertherm recommends that an exhaust ventilation
system be installed when cutting with oxygen.
Flashback arrestors are required (unless not available for specific gases or required pressures) to
prevent fire from propagating to supply gas.
Caution:
When connecting the gas console to the supply gases, make sure that all hoses, hose
connections and fittings are acceptable for use with oxygen. Installation must be made
in accordance with national and local codes.