Major Advantages
- Saves valuable time normally lost in draining down and refilling a system.
- Avoids complete shutdown of systems and equipment (as in a sprinkler or water supply system)
- Prevents waste of large amounts of water.
- Eliminates handling of waste water.
- Safe and cost effective.
FOR USE IN MANY INDUSTRIES
- Office & Commercial Buildings
- Petro/ Chemical Refineries
- Food & Beverage Plants.
- Municipalities.
- Hospitals/Nursing Homes
- Industrial Plants
- Water Treatment Facilities
- Conventional & Nuclear Power Plants
- Residential
- Restaurants
- Ships
- Schools/Universities
- Hotels/Motels
- Water Utilities
- Aerospace.
The water is brought to a static condition. The Qwik-Freezer jacket (orange) is then wrapped around the pipe, Jacket# 1, at a nearby upstream location. Injecting liquid CO2 into the jacket rapidly freezes the water in the pipe, permitting valve removal for servicing or replacement. Jacket #2 shows the position of a second Qwik-Freezer jacket and tank used when a double freeze is required to block flow on both sides of the valve.
Standard Equipment
Qwik-Freezer kits consist of insulating pipe jackets, CO2 cylinder(s), reinforced high pressure hose, fittings, insulated work gloves, a rubber mallet, safety glasses, operating manual, timing log and carrying.
CO2 CYLINDER
COB provides specially adapted liquid CO2 cylinders for use with Qwik-Freezer equipment. The QFAL20, a 20 pound aluminum cylinder with protective handle, is supplied with 3/8" to 3" kits. A 50 pound aluminum cylinder, QFAL50, is supplied with 4"-8" kits as standard equipment. CO2 cylinders can be refilled by local welding and carbonic distributors.
Qwik-Freezer Jackets
- COB.QF101 for 3/8" (9.375 mm.) to 3/4" (18.75 mm.) Pipe size.
- COB.QF 102 for 3/4" (18.75 mm.) to 1-1/2" (37.5 mm.) Pipe size.
- COB.QF103 for 1-1/2" (37.5 mm.) to 3" (75 mm.) Pipe size.
- COB.QF104 for 3-1/2" (87.5 mm.) to 4" (100 mm.) Pipe size.
- COB.QF106 for 5" (125 mm.) to 6" (150 mm.) Pipe size.
- COB.QF108 for 7" (175" (175 mm.) to 8" (200mm.) Pipe size.
Kits
3/8" to 3" PIPE FREEZING KITS*
Kit No. | QF 101 | QF 102 | QF 103 | QF 800 | QFAL 20 | QF 801 |
8" (203mm.) Jacket | 12" (305 mm.) Jacket | 14" (356mm.) Jacket | Hose (10ft.) | 20lbs CO2 Cylinder | Valve Adapter | |
QF 1500 | 1 | 1 | - | 1 | 1 | 1 |
3/8" (9.375mm.) - 1-1/2" (37.5 mm.) pipe | ||||||
QF 2000 | - | 1 | - | 1 | 1 | 1 |
3/4" (18.75 mm.) - 1-1/2" (37.5mm.) pipe | ||||||
QF 2200 | - | 2 | - | 2 | 2 | 2 |
3/4" (18.75 mm.) - 1-1/2" (37.5 mm.) pipe | ||||||
COB.QFB.QF 3000 | 1 | 1 | 1 | 2 | 2 | 2 |
3/8" (9.375 mm.) - 3" (75mm.) pipe |
*All the above kits contain the following standard accessories: gloves, rubber mallet, timing log, safety glasses, operating manual, and carrying case. Individual items (jackets, etc.) may also be ordered separately.
Kit No. | COB.QF 101 8"Jkt. (203mm.) | COB.QF 102 12"jkt (305mm.) | COB.QF 103 14"jkt (356mm.) | COB.QF 104 20" jkt (508mm.) | COB.QF 106 (711mm.) | COB.QF 108 33"jkt (838mm.) | COB.QF 800B Hose (16ft.) | COB.QF 801 Valve Adapter | COB.QF 802 T Connector | COB.QF 815 Timing Board | COB.QFAL50 50lb CO2 Cylinder |
COB.QF 4000 3/8"-4"pipe | 1 | 1 | 1 | 1 | - | - | 4 | 2 | 2 | 1 | 2 |
COB.QF 4100 3"-4"pipe | - | - | - | 1 | - | - | 4 | 2 | 2 | 1 | 2 |
COB.QF 6000 3/8"-6"pipe | 1 | 1 | 1 | 1 | 1 | - | 4 | 4 | 2 | 1 | 6 |
COB.QF 6100 5"-6"pipe | - | - | - | - | 1 | - | 3 | 4 | 2 | 1 | 6 |
COB.QF 8000 3/8"-8"pipe | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 4 | 2 | 1 | 12 |
COB.QF 8100 7"-8"pipe | - | - | - | - | - | 1 | 4 | 4 | 2 | 1 | 12 |
Kit contents: Qwik Freezer kits consist of insulating pipe jackets, CO2 cylinder(s), reinforced high pressure hose, fittings, insulated work gloves, a rubber mallet, safety glasses, operating manual, timing log and carrying case.
Qwik Freezer Kit | Kit Contents | |
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COB.QF 1500 Pipe Freeze Kit | Pipe Freezing Kit for 3/8″ to 1-1/2″ I.D.
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COB.QF 1700 Pipe Freeze Kit | Double Pipe Freezing Kit for 3/8″ to 1-1/2″ I.D.
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COB.QF 2000 Pipe Freeze Kit | Pipe Freezing Kit for 3/4″ to 1-1/2″ I.D.
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COB.QF 2200 Pipe Freeze Kit | Double Pipe Freezing Kit for 3/4″ to 1-1/2″ I.D.
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COB.QF 3000 Pipe Freeze Kit | Pipe Freezing Kit for 3/8″ to 3″ I.D.
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COB.QF 3200 Pipe Freeze Kit | Double Pipe Freezing Kit for 3/8″ to 3″ I.D.
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COB.QF 4000 Pipe Freeze Kit | Pipe Freezing Kit for 3/8″ to 4″ I.D.
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COB.QF 4100 Pipe Freeze Kit | Pipe Freezing Kit for 3″ to 4″ I.D.
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COB.QF 4200 Pipe Freeze Kit | Double Pipe Freezing Kit for 3/8″ to 4″ I.D.
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COB.QF 4150 Pipe Freeze Kit | Double Pipe Freezing Kit for 3″ to 4″ I.D.
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COB.QF 6000 Pipe Freeze Kit | Pipe Freezing Kit for 3/8″ to 6″ I.D.
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QF 6100 Pipe Freeze Kit | Pipe Freezing Kit for 5″ to 6″ I.D.
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COB.QF 6200 Pipe Freeze Kit | Double Pipe Freezing Kit for 3/8″ to 6″ I.D.
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COB.QF 6250 Pipe Freeze Kit | Double Pipe Freezing Kit for 5″ to 6″ I.D.
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COB.QF 8000 Pipe Freeze Kit | Pipe Freezing Kit for 3/8″ to 8″ I.D.
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COB.QF 8100 Pipe Freeze Kit | Pipe Freezing Kit for 7″ to 8″ I.D.
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COB.QF 8200 Pipe Freeze Kit | Double Pipe Freezing Kit for 3/8″ to 8″ I.D.
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*All of the above kits contain the following standard accessories: gloves, rubber mallet, safety glasses, operating manual and carrying case. Individual items (jackets, etc.) may also be ordered separately to suit your job requirements.
8" (203mm.) Pipe Freezing Kits
For Freezing pipes larger than 8" (203mm.) I.D. and special jobs on smaller pipe lines call our trained engineers to discuss your specific application.
Technical Information
3/8" to 3" FREEZING TABLE
Pipe Jacket | COB.QF 101 | 8 inches | COB.QF 102 | 12 inches | COB.QF 103 | 14 inches |
Pipe Size | 1/2" (12.5mm.) | 3/4" (18.75mm.) | 1" (25mm.) | 1-1/2" (27.5mm.) | 2" (50mm.) | 3" (75mm.) |
No. of Injections | 2 | 2 | 3 | 4 | 3 | 6 |
Injection Time | 1 min. | 1 min. | 1 min. | 1 min. | 5 min. | 5 min. |
Waiting Time | 3 min. | 3 min. | 5 min. | 5 min. | 5 min. | 5 min. |
Total Time Required | 8 min. | 8 min. | 18 min. | 24 min. | 30 min. | 60 min. |
Approx. CO2 Required | 1 lb. | 1 lb. | 3 lbs. | 6 lbs. | 18 lbs. | 36 lbs. |
4" to 8" FREEZING TABLE
Pipe Jacket | COB.QF 104 | 20 inches | COB.QF 106 | 28 inches | COB.QF 108 | 33 inches |
Pipe Size | 3" (75mm.) | 4" (100mm.) | 5" (125mm.) | 6" (150mm.) | 7" (175mm.) | 8" (203mm.) |
No. of Injections | 6 | 7 | 9 | 11 | 15 | 17 |
Injection Time | 6 min. | 8 min. | 12 min. | 12 min. | 12 min. | 12 min. |
Waiting Time | 8 min. | 10 min. | 8 min. | 8 min. | 8 min. | 8 min. |
Total Time Required | 84 min. | 126 min. | 190 min. | 220 min. | 310 min. | 340 min. |
Approx. CO2 Required | 42 lbs. | 65 lbs. | 243 lbs. | 297 lbs. | 405 lbs. | 475 lbs. |
*NOTE: The above tables are for typical freezing of static water at 68ºF in Schedule 40 steel pipe. Higher temperatures will require additional injection and waiting periods. Plastic pipe will take up to 3 times longer. Refer to Operating Manual for detailed instructions.
For freezing applications on pipes larger than *" (203mm.) I.D. please contact Newman Tools industries, Inc. for more Information.
OPERATING INSTRUCTIONS FOR QWIK-FREEZER® EQUIPMENT
Set-up Preparations
- Be sure there is enough liquid CO2 on hand for the job.
- Be sure there is no flow of water through pipe.
- Connect hose to nozzle on jacket and to cylinder.
- Fit the jacket around the pipe. Always keep the jacket at least 16" (406mm.) or more from the point of repair if a torch is to be used and 24" (609 mm.) or more from the nearest closed connection.
Beginning the Freeze
- Open cylinder valve fully and inject liquid CO2 (for times see table).
- During the freeze period distribute the dry ice around the pipe by pressing the jacket firmly or tapping the jacket with the rubber mallet supplied with kit. Wear gloves & safety glasses.
Proceeding with Repair
- Frost forms on the outside of the pipe near the edges of the jacket when the contents are frozen. The pipe is now sealed by the ice plug and repairs an be carried out.
- Make an additional injection every 15 minutes. This procedure will maintain the freeze for as long as required, extra cylinders required.
- Upon finishing repair, remove jacket and allow pipe to thaw naturally. Do not use a torch. The water system should return to normal in a matter of minutes.
CO2 Cylinder
The COB.QFAL 20 cylinder weighs 29 pounds empty and 49 pounds full. When full, it contains 18 pounds of usable liquid CO2 and 2 lbs. of residual gas. The COB.QFAL 50 cylinder weighs 56 lbs. empty and 106 lbs. full. When full it contains 48 lbs. of usable liquid CO2 and 2 lbs. of residual gas. The residual gas cannot be used for freezing. Always weigh you cylinder before attempting a freeze to ensure that more than enough CO2 is available to do the job safely..
Safety Precautions
As CO2 is heavier than air, care should be taken to disperse CO2 in confined and low lying areas. Always provide good ventilation in the work area.