Plug it by Freezing it
The HFT® Pipestoppers® Qwik-Freezer™ Pipe Freezing Equipment uses liquid carbon dioxide (CO2) to freeze stationary water in any chosen section of pipe or tubing. By producing very low ‘dry ice’ temperatures, Qwik-Freezer™ forms a secure in-line ice plug, temporarily isolating the water in the system andallowing repairs or modifications to be made without draining or shutting off systems.
 The Qwik-Freezer™ kit is easy to use. A specially designed jacket is wrapped around the pipe when the freeze is required. A nozzle on the jacket is then coupled to a cylinder of liquid CO2 by means of a high-pressure hose. When liquid CO2 is injected into the space between the jacket and the pipe, it immediately expands to form solid carbon dioxide (dry ice) at a temperature of -70ºC (-108ºF). This low temperature quickly freezes the water inside the pipe, forming a secure ice plug that seals in the pipe. The ice plug forms only in the section of the pipe covered by the jacket, so the resulting rise in pressure is very small, and there is no damage to the pipe. The technique can be used safely on iron, lead, stainless steel, copper, brass, and plastic pipes.> |
Key Features and Benefits
Saves Time
Prevents the need for draining and refilling systems.
Avoids Shutdowns
Allows repairs or modifications without shutting off the entire system.
Reduces Waste
Prevents large amounts of water wastage.
Safe and Cost-Effective
Uses inexpensive liquid CO2.
Colder Refrigerant
The LN2 delivery system is colder than other refrigerants.
No Expensive Refills
Operators can source their own CO2, avoiding the need for costly refills or replacements.
No Re-Calibration Needed
Operators can source their own CO2, avoiding the need for costly refills or replacements.
No Re-Calibration Needed
Qwik-Freezer™ products do not require re-calibration.
Standard Products
Suitable for pipe and tube sizes from 3/8″ to 8″ (10 to 200 mm ø).
| Ordering | |
|---|---|
| Freeze Pipes to 8" (200 mm): | Pipestoppers® Qwik-Freezer™ is designed and manufactured to suit pipe and tube sizes from 3/8" to 8" (10 mm - 200 mm ø). |
| Typical Application: Replacing a Defective Valve | 1.The water in the pipe is brought to a static condition. 2.The Qwik-Freezer™ jacket is wrapped around the pipe nearby upstream. 3.Liquid CO2 is injected into the jacket. 4.The CO2 rapidly freezes the water inside the pipe, permitting valve removal for servicing or replacement. An optional second jacket is available when a double freeze is required to block flow on both sides of the valve. |
