Hypertherm HD3070 Plasma Arc Cutting System w/ Automatic Gas Console - Manual (Page 51)

HD3070 with Automatic Gas Console Instruction Manual 3-3
16
INSTALLATION
Gas Requirements
The following gases required by the HD3070 plasma system for cutting are provided by the customer. Bottled
liquid gas is recommended. If the purity level of the gas is too low or if there are leaks in the supply hoses or
connections:
• System can be contaminated
• Cut speeds can decrease
• Cut quality can deteriorate
• Cutting thickness capability can decrease
• Parts life can shorten
If making hard plumbing connections, avoid using iron pipe. Never use PTFE tape on any joint preparation. After
installation, pressurize the entire system and check for leaks.
Oxygen (O
2
)
The customer must provide a regulated oxygen supply capable of delivering at a pressure of 120 psi (8.2 bar) to
the gas console at 99.95 % purity and at a flowrate of 77.8 scfh (2203 l/hr). Connect the oxygen supply with a
3/8-inch ID hose to the O
2
input adapter (1/4 NPT right handed ʻBʼ, male) on the gas console.
Nitrogen (N
2
)
The customer must provide a regulated nitrogen supply capable of delivering at a pressure of 120 psi (8.2 bar) to
the gas console at 99.995 % purity and at a flowrate of 83.1 scfh (2353 l/hr). Connect the nitrogen supply with a
3/8-inch ID hose to the N
2
input adapter (1/4 NPT right handed “Bʼ, inert female) on the gas console.
Methane (CH
4
)
The customer must provide a regulated commercial grade methane supply at a pressure of 120 psi (8.2 bar) to the
gas console at 93 % purity, and at a flowrate of 110 scfh (3114 l/hr). Bottled liquid gas is recommended. Connect
the methane supply with a 3/8-inch ID hose to the CH
4
input adapter (1/4 NPT, left handed ʻBʼ, male) on the gas
console.
WARNING
FIRE HAZARD
Oxygen can cause a potential fire hazard. Install an exhaust ventilation system when using oxygen
gas.
Air
The customer must provide a regulated air supply capable of delivering at a pressure of 120 psi (8.2 bar) to the
gas console that is clean, dry and oil-free and at a flowrate of 81.7 scfh (2313 l/hr). Connect the air supply with a
3/8-inch ID hose to the AIR input adapter (1/4 NPT #6, 9/16-inch 18 thread, male flare) on the gas console.
WARNING
EXPLOSION HAZARD
Methane is a combustible gas and can be an explosion hazard. Keep open flames away from the
methane cylinders and gas hoses.