Qwik-Freezer® Pipe Freezing Equipment 3/8" - 8"

Qwik-Freezer equipment utilizes liquid carbon dioxide (CO2) to freeze stationary water in selected sections of pipe or tubing. By producing very low "dry ice" temperatures, Qwik-Freezer forms a secure in-line ice plug. This temporarily isolates the water in the system and allows repairs or modifications to be made without draining down or shutting off systems.

ACCU-FREEZE Pipe Freezing Equipment up to 12"+

Accu-Freeze utilizes liquid nitrogen in a controlled system to freeze stationary liquids in a selected section of pipe or tubing. By controlling the surface temperature of the pipe, Accu-freeze can accurately and safely form an in-line ice plug, capable of withstanding 2000 psi in pipes up to 12 inch diameter. 


COB presents their complete line of pipe plugs. Offering a full range of test plugs from 1/2" I.D. to 96" I.D. in a variety of materials including rubber, nylon and aluminum. The plugs have pressures from 1/4 PSI up to 5000 PSI. COB offers expandable, mechanicals and inflatable, something just right for virtually any application. COB's plugs can be used in the gas, water and sewage industries as well as in the chemical, petroleum, utility, nuclear and construction fields.

ARGWELD® Weld Purge Equipment

The Argweld® line of Pipe Purging Products include: Purge Bladders, Purge Monitors, Pipe Purge Plugs, Purge Film, Trailing Shields and Backing tape.

Quick-Purge systems

The new Quick-Purge systems are specifically designed for welding larger diameter stainless steel pipe and are quickly becoming an industry standard. They are used for most large-scale jobs that require a lot of stainless steel pipe such as LNG sites, refineries, agricultural or food and beverage processing, etc. This is the fastest method of weld purging and provides huge savings in gas and reduced “down-time”. They are available for sizes 8” and up.


The TECHWELDTM line of Welding Products include: Multi-Strike Tungsten Electrodes.                                             


COB Air tools are guaranteed and stand for quality and service. COB Industries has a thirty year history off supplying superior tool and service to our customers worldwide.


Leak Test Plugs automotive radiator test kit is composed of out industrial nylon expansion plugs. The kit can be used to seal radiator and coolant ports to test for leaks. The test plugs are made from a nylon body and plates that compress and industrial rubber seal. The industrial nylon used for these plugs are shatterproof, corrosion resistant, light weight and easily cleaned.

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Qwik Freezer Pipe Plugs
AccuFreeze Argweld/Techweld