General Pipe Cleaners Cold-Shot Pipe Freezing Kit Installation Manual
Operating Instructions for
General Cold-Shot™
F or 1/8" to 2" (10-60 mm) Metal and Plastic Pipes
Your Cold-Shot pipe freeze kit is
designed to give you years of trouble-free,
profitable service. However, no tool is better
than its operator. We therefore suggest you
read these instructions through carefully
before using your machine on the job. This
will enable you to operate the Cold-Shot more
efficiently and more profitably. Failure to
follow these instructions may cause personal
injury to operator or damage to equipment.
Basic Safety Instructions
Only use the Cold-Shot for the purpose for
which it was intended, with due attention to
the general safety and accident prevention.
Keep the work area clean. Clutter can be
dangerous.
Avoid dangerous flammable liquids or gases.
Provide adequate lighting at the workplace.
Wear suitable work clothes, keep long hair clear, take off jewelry and similar items.
Use personal safety equipment (e.g. safety glasses, rubber gloves).
Clamp the work piece securely; do not hold by hand.
Check the unit occasionally for damage, and to see that it is operating correctly.
Replace worn parts as early as possible.
Only use genuine GENERAL spare parts and accessories, for personal safety
reasons, to ensure correct operation of the Cold-Shot, and to preserve the basis for
the warranty claim.
All repair work must be performed only by an authorized repair facility.
Any unauthorized modifications of the Cold-Shot are prohibited for safety reasons
and will void the warranty.
Specific Safety Instructions
Carbon dioxide must be drawn from the cylinder in a liquid state in order to produce
dry ice. For this reason,
only cylinders equipped with a dip tube may be used.
Do not connect a pressure reducer to the cylinder.
Keep the cylinder in an upright position and secure it to prevent it from falling over.
The carbon dioxide cylinder must not be emptied completely.
Do not interfere with nozzles, freeze heads or valves, including cylinder valves.
Work only in a well ventilated area
. Carbon dioxide is non-toxic and nonflammable but it is heavier than air and can therefore collect at ground level and
displace the air if ventilation is inadequate, giving rise to the danger of suffocation.
Wear eye protection or goggles.
Wear gloves.
Do not work with an open flame within 2 ft. (50 cm) of the freezing point.
Never hit a chilled freeze head with a hammer or other tool. A sharp blow will cause
it to fracture.
Keep other people, particularly children, well away. Dry ice causes burns if it comes
into contact with the skin. Once work is complete, any remaining dry ice in the
freeze heads must be carefully disposed of or placed in a covered refuse container.
Observe the safety instructions provided by the carbon dioxide supply company.
How the Cold-Shot Works
The Cold-Shot can be used to freeze all types of liquids, even at high pressure,
inside steel, copper, cast iron, lead, aluminum and plastic pipe in sizes ranging from
1/8" to 2" (10-60 mm).
The Cold-Shot uses commercially available carbon dioxide (CO²). You can
purchase or rent cylinders through your local welding supply house. Though any size
cylinder can be used, it is recommended that users purchase the largest cylinder size
possible.
Note: the CO² tank must have a dip tube.
The dip tube allows liquid rather
than gas to flow through the spiral hoses were it will expand to form Dry-ice inside the
freeze heads.
The ice pack which forms in the pipe is capable of withstanding a pressure of
approximately 7000 psi (500 bar). As the liquid freezes, a layer of frost will develop on
the surface of the pipe.
Preparation
1. Remove the seal from the carbon dioxide cylinder.
2. Screw connector with T-distributor on to cylinder (right-hand thread).
3. Screw spiral hoses on to the
T-distributor. (Fig. 1)
4. Choose freeze heads which
correspond to the size of the pipe to
be frozen.
2
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