MACHINERY | TECHNOLOGY COOLING
Mobile water cooling does not produce waste heat
GWK of Germany has introduced its mobile water-cooled Teco CW series, which do not produce unwanted waste heat. The device connects to a machine cooling system, such as a temperature control unit. As a result, there will be no warm exhaust air in the production area – as would be the case with air-cooled compact refrigeration units. Unlike traditional cooling
units, a Teco CW can produce cold water with a temperature of 0°C without the need for adding anti-freeze to the water. Cold water is often
needed for individual units, and not all production machines – so that a central refrigeration system would
JOINING Fusion equipment boosts use of gas
McElroy says that a range of its TracStar fusion equipment has been used in an onshore natural gas project in Australia. In October 2018, Shell announced plans to develop more onshore
natural gas fields in Queensland under the QGC project. A range of fusion equipment was used on the job including the
McElroy TracStar 900 and 618 models, as well as Georg Fischer tapping saddles. The TracStar machines have fusion carriages that are easily removable so that fusions can be performed in tight spaces in the ditch, says McElroy. This in-ditch capability worked out well in this situation as some the fusions were performed in a bell hole with strict safety requirements. After placing the fusion carriage in the bell hole, local firm MPC Kinetic said it could easily extend and connect the machine’s hydraulic hoses to the carriage to power the fusions. �
www.mcelroy.com
www.pipeandprofile.com October 2020 | PIPE & PROFILE EXTRUSION 41
other components. Any problems can be quickly resolved, thanks to the use of standardised spare parts. The pump output is adapted to the needs of plastics processing applications with maximum flow rates of 60 litres/min and maximum pump pressure values of 3.5 or
not be economically viable. In these cases, users tend to rely on mobile refrigeration units. However, the addi- tional heat generated in the production area by the exhaust air of the refrigera- tion units can be very annoying during the summer. The mobile units are equipped with GWK’s control system as well as
5.8 bar. The refrigeration capacity up to 4kW or 10kW is optimised for the produc- tion machinery. Teco CW units have an optimised refrigeration circuit with very small fill quantities, making them exempt from regular statutory leak tests. The water-cooled version does not have a fan, so is particu- larly quiet. �
www.gwk.com
ANCILLARIES
Portable chiller
with PLC The newest EP2 series of portable chillers from Conair now includes PLC control and a colour touch screen HMI as standard. These chillers – which
are available with air- cooled, water-cooled or remote air-cooled condensers – use a new sloped top electrical panel that places the 7in touch screen on the front of the unit for easy viewing and operation. The PLC control system now displays digital pump pressure, compressor/ pump/fan running hours, and performance trend charts for parameters such as process fluid tempera- tures. New controls also include Modbus RTU communications as standard. �
www.conairgroup.com
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