Examine the shield-water regulator (if applicable)

Before cutting system operation, examine the regulator on the shield water supply to make sure that the pressure and flow rate are correct. Adjust the regulator on the water supply, if necessary.

  1. Make sure that the water pressure and flow rate is within the recommended range.
    Table 1. Quality, pressure, and flow requirements for shield water
    Quality1 Minimum and maximum pressure Flow rate required

    Deionized water is not recommended to use as shield water.

    Deionized water will react with the copper components in the system and result in decreased life of components and consumables.

    Hypertherm® recommends that you contact a water-quality expert for guidance.

    2.76 bar (40 psi) minimum

    8.27 bar (120 psi) maximum

    		 35 L/h (9.4 U.S. gal/h)
    1 Water that does not meet minimum purity specifications can cause unwanted deposits on the torch nozzle and shield. These deposits can alter the water flow and produce an unstable arc.
  2. Adjust the regulator on the water supply, if necessary.
    Note:

    The regulator on the gas connect console cannot be adjusted.

    For more information about shield-water requirements, refer to the instruction manual that came with your cutting system.