ARCWater® II Torch
Length: 9-3/4” (24.77 cm) Weight: 5.5 lbs. (2.5 kg) with cable. Equipped with 10 ft. (3.05 m) heavy-duty cable. The Arcair® Arcwater®Torch is designed to gouge or cut steel, stainless steel and other metals underwater safety, easily and efficiently. Arcwater can also be converted to an underwater welding torch by simply changing collets. The unique Arcwater torch is oxygen free, eliminating the risk of hydrogen gas pocket explosions. Tests conducted at Arcair and by diving contractors prove the following:
1) Arcwater Torch is easy to handle by right or left-handled users.
2) Arcwater can be used on out-of-position applications as well as on easy to reach jobs.
3) Arcwater’s valve/lever assembly allows the operator to easily control water flow.
4) The replaceable collet means longer torch service life than ever before.
Arcwater uses current from a DC power source, reverse polarity (DCEP) and a special Arcair Arcwater electrode. Fresh or sea water must be delivered to the torch at 90 psi (6.32 kg/cm2 or 620 kPa) over the pressure at the depth of use. A minimum water flow rate of 3.5 gallons (13.25 liters) per minute is required. With the Arcwater process, the metal is made molten by the electrode coming in contact with the work piece, forming an arc. The molten metal is then removed by the high pressure water
stream, leaving a clean slag-free gouge ready for welding.
USES
- Arcwater Torch can be used to gouge or cut steel and other metals in underwater fabrication and salvage without the use of oxygen.
- Gouging: hold Arcwater at a 40° angle to the work with the water jet between the work and the electrode. Move Arcwater forward at a speed sufficient to maintain the arc and the desired depth of groove. The diver should not cut deeper than 5/16” (7.9 mm) in a single pass, preventing molten metal from blowing back at the diver.
- To sever a plate: hold Arcwater at a 75° angle with the water jet under the electrode. Care should be taken to prevent molten metal from blowing back at the diver. (See Underwater Manual, Form No. 89-250-054). Once a hole is pierced in the metal, it can be enlarged by using the torch in a slow sawing motion in the desired
direction of cut.
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