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WELDING


Freeze sealing for pipe repairs with Qwik-Freezer


F


reeze sealing pipes for repair or maintenance is an increasingly popular alternative to ‘hot-tapping’ and eliminates the need to shut down or drain down a system for repairs and maintenance. These systems work by creating ice plugs (or ‘freeze seals’) either upstream of the repair site or on either side of an area where a pipe system needs to be maintained.


Qwik-Freezer®, which covers pipe diameters from 3/8” – 8” (9 – 200 mm), is the industry standard for portable CO2 Pipe Freezing Systems with thousands of kits in use around the world for over 40 years. Qwik- Freezer® is very quick and easy to use, requires almost no set-up time and is the only CO2 Pipe Freezing System capable of freezing up to 8” pipe. Even for smaller diameter freezes, Qwik-Freezer® produces


®


ice plugs that are significantly more reliable and robust, capable of withstanding far more pressure than the smaller plugs that other types of systems will produce. The diameter range of Qwik- Freezer® has become the preferred solution for a very wide range of water-carrying pipework, where valves need to be changed, in industry sectors such as: petrochemical, building services, food and beverage, hospitals, water treatment, shipping and aerospace. A specially designed flexible jacket is wrapped around the pipe at the point where the freeze is required. A nozzle in the jacket is then coupled to a cylinder of liquid carbon dioxide by means of a high- pressure hose. When the CO2 is injected into the space between the jacket and the pipe, at a temperature of -78OC, the pipe contents freeze and a secure ‘ice plug’ is formed, which seals the pipe. The ‘ice plug’ forms only in a 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 pipe. By not having to drain systems of liquids to make repairs, the savings made are able to justify the low relative cost of the Qwik-Freezer® System.


More information: Press: michaelareay@ huntingdonfusion.com Sales: pipefreezing@ huntingdonfusion.com www.huntingdonfusion.com


FANUC unveils arc welding robot with long reach: the ARC Mate-100iC/8L


FANUC, a leading global provider of factory automation and robotics, has launched the ARC Mate-100iA/8L: the latest addition to its arc welding range. The ARC Mate-100iC/8L has a wide reach of over two metres and a wrist payload of up to 8 kg for large work pieces and heavy duty welding, optimising motion for arc welding and increasing cost efficiency. The robot is equipped with the latest servo motors and control technologies, providing vibration-free positioning, fast axes speeds and accelerations to improve cycle time and product quality.


The robot is slim and


lightweight, with a hollow wrist allowing for integrated gas, power and torch cables to be routed inside the arm. This design feature provides complete freedom of movement, avoiding cable interference, wear and tear, and reducing maintenance costs. The robot’s advanced modular


design uses less energy than its predecessors, and maximises space on the factory floor with the ability to ceiling mount providing easier access and a greater working envelope. A range of accessories


can be used on the robot, including FANUC’s patented iRVision, collision detection, and


About FANUC FANUC UK is the leading global manufacturer of factory automation and industrial robotics. FANUC UK offers the most complete range of industry-leading products and services for robotics, CNC systems and factory automation solutions, helping to transform the manufacturing industry through innovation in automation.


www.internationalmetaltube.com


coordinated motion features, making the ARC Mate-100iA/8L highly versatile.


Chris Sumner, Vice President


at FANUC Europe commented, “The robot guarantees a high level of quality and precision for manufacturers within the metals industry. We’re committed to helping our customers improve productivity, reduce costs and ensure safety on the factory floor.”


More information: Will Painter


Ogilvy Public Relations Tel: +44 (0)7881 255 323 Email: will.painter@ogilvy.com


IMT September 2015 15


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