For over 75 years, Furmanite has made it our business to keep critical 
pipe systems online and prevent unwanted shutdowns. As part of this commitment, we are proud to offer Pipe Freeze Plugging also known as Pipe Freeze Stopping. Freeze Plugs are an alternative option to our Line Stopping services and are designed to effectively isolate sections of pipe where valves are unavailable or inoperable. Through a combination of Furmanite’s Hot Tapping , Line Stopping, and Pipe Freeze Plugging services you can be assured that your pipe systems will stay in service 24 hours a day, 7 days a week. Put us to the test and you will see why at Furmanite, “We work best – Under Pressure”.
Pipe Freeze Technology
An effective means of system isolation, freeze plugs are developed within the pipe system through the application of CO2 or liquid nitrogen. The cryogenic process begins with heat being drawn from the product inside the pipe until it reaches a temperature below its freeze point. Once an established freeze plug is formed, the Furmanite technicians will monitor the flow of liquid nitrogen to maintain the proper sized plug based on known system parameters.
In order to establish an effective freeze plug, it is critical that the system has no flow and the freeze plug must be an established distance from any flowing pipe branches or headers. In the event that systems can not be blocked in or flow must be maintained, consider Furmanite Line Stop Services as a safe and effective alternative.
Pipe Freeze Applications
| Pipe Freezing Services can be used to perform any of the following routine system modifications |
|
Valve Installations
Pipe Section Replacement
Equipment Isolation
Pipe Branch Terminations
Pipe Relocations |
| Pipe Freeze Plug Services can be performed on any of the following pipe materials |
|
Carbon Steel Pipe
Stainless Steel Pipe
Cast / Ductile Iron Pipe
Copper Pipe & Tube |
Pipe Freeze Plugging Capabilities
Furmanite performs pipe freeze plug services on pipes ranging from ½” – 48”. We maintain a staff of engineers experienced in cryogenic technology who assist in the design and development of our pipe freezing procedures. Additionally, Furmanite maintains an established training program in the safe and effective use of Pipe Freeze Equipment and Liquid Nitrogen Safety.
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PIPE FREEZE PLUG SERVICE BENEFITS
- System Isolation without the need for pipe drain downs
- No Welding Required
- Non-Intrusive Means of Pipe System Isolation
- Eliminates problems associated with pipe system product disposal