Cold-
Shot™
4
FEATURES
Carrying Case
Safety Glasses
Freeze Heads
1/8”
-
2”
“T” Distributor
Locking Nut
Rubber Gloves
Injector w/
Spiral Hose (2)
Hex Head Wrench
Instruction Manual
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 diox-
ide (CO
2
). You can purchase or rent cylinders through
your local welding supply house. Though any size cylin-
der can be used, it is recommended that users purchase
the largest cylinder size possible.
NOTE: the CO
2
tank
must have a dip tube.
The dip tube allows liquid rather
than gas to flow through the spiral hoses, where it will
expand to form dry ice inside the freeze heads.
The ice pack which forms in the pipe is capable of with-
standing a pressure of approximately 7000 psi (500 bar).
As the liquid freezes, a layer of frost will develop on the
surface of the pipe.
SET-UP
1. Remove the seal from the carbon dioxide cylinder.
2. Screw connector with T-distributor onto cylinder (right
-hand thread - clockwise).
3. Screw spiral hoses onto the T-distributor.
Note:
If only one freeze head is needed, use locking
nut to close half of the T-distributor.
4. Choose freeze heads which correspond to the size of
the pipe to be frozen.
5. Place the freeze heads on the pipe and secure by
tightening the knobs evenly, using the hex head
wrench provided, to give a firm, but not overly tight,
hold.
6. Push each injector into the bore of the freeze head
until it is completely inserted and resting against the
stop, then turn clockwise one quarter turn to lock in
place.
OPERATION
1. The liquid in the pipe can only be frozen when it is no
longer flowing. All pumps must therefore be stopped
and no liquid allowed to escape from the pipe. Allow
water to cool to room temperature before freezing.
2. Fully open the cylinder valve.
The amount of carbon
dioxide required is controlled automatically
. The
liquid carbon dioxide expands in the injector and
forms dry ice inside the freeze head with a tempera-
ture of -110
°
F (-79
°
C), and freezes the liquid within
the pipe.
NOTE:
CO
2
sputtering from the freeze heads during
operation is normal.
Warning:
It is not always necessary for freeze head
to clamp completely together. Once freeze head is
secured tightly around the pipe, stop tightening.
Over
tightening can cause stress fractures of freeze
head.
NOTE:
The freeze heads must be positioned at least
40” (1 m) apart from each other.
DO NOT OVER TIGHTEN THE FREEZE
HEADS. THIS CAN PRODUCE STRESS
FRACTURES AND CAUSE THE FREEZE
HEADS TO SHATTER.
