Hypertherm recommends an internal diameter of at least 10 mm (0.375 inch) for supply-gas hoses that are
76 m (250 feet) or less.
Table 10 - Recommended dimensions for gas fittings
Fitting type Dimensions
N
2
/ Ar 5/8 inch – 18, RH internal (inert gas) "B"
Air 9/16 inch – 18, JIC #6
F5 / H
2
9/16 inch – 18, LH (fuel gas) "B"
O
2
9/16 inch – 18, RH (oxygen)
The location of regulators and the number of elbow fittings can have an
effect on inlet pressure. If the inlet pressure for your cutting system is
not within recommended specifications, speak with your cutting machine
supplier or regional Hypertherm Technical Service team.
NOTICE
PTFE TAPE CAN CAUSE CLOGGED VALVES, REGULATORS, AND TORCHES
Never use PTFE tape on any joint preparation. Use only a liquid or paste thread sealant on male
thread ends.
NOTICE
INCORRECT SUPPLY-GAS CONNECTIONS CAN CAUSE CUTTING SYSTEM DAMAGE
Incorrect connections can reduce the life of consumables and cause damage to the torch head,
torch receptacle, torch leads, and torch connect console.
NEVER connect a supply gas to a hose, connection, or fitting that is not designed for that gas type
or pressure.
Qualifications and Requirements
2
52
811530 Instruction Manual XPR460
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