EVENTS AND EXHIBITIONS
INCORPORATING COLD CHAIN have also been done for kiwi fruit , berries , plums , grapes , and fresh produce .
FCE also manufactures a large range of accessories for CA , control units , CO 2 scrubbers , ripening units , CO 2 analysers and , of recent , mobile research units .
Dr Luca Buglia was keen to advise , “ Control atmosphere is a safe treatment of fruit as it does not require any chemicals , although it must be remembered that it only prolongs the storage life and does not add to the quality of product .”
The first FCE system in South Africa was recently installed at Bamco in Ceres and supplied by Beveratech in Paarl .
Industrial refrigeration For many years , Witt has been a household name in refrigerant pumps and float regulators . TH . Witt , founded as a family business in 1896 , has grown to a staff of 120 and has a worldwide network of distributors . Witt products are widely used in industrial refrigeration installations , in particular ammonia . “ Because of the shortage of skilled labour , Witt also offers factory-built pumping units , economisers and accumulator vessels . Being factory-built and tested , and supplied with 3D drawings , contractors can plan installations much easier . With the Witt factory-built assemblies , the on-site labour is much reduced ,” said Monica Witt , CEO .
Hansen introduced their new motorised MCV control valve available in sizes from 20mm ( ¾ ″) to 50mm ( 2 ″). The motor actuated valve has an LED display to indicate the valve position and operates with a 24V AC or DC input . A larger than life size poster of the MVP control valve could be seen from the far end of Hall 6 . The compact valve body of the MVP offers six separate functions ( including stop valve / solenoid valve / strainer / pressure regulator / check valve etc ) and has six tappings to read pressures .
GEA , on their very large stand , displayed the AWP range of shut off valves and safety relief valves , among others . There has been a marked improvement on the Bock compressor range , optimised for increased energy efficiency . The new range will land in South Africa in 2017 .
Bock unveiled a new six-cylinder HG56eHC series for HC refrigerants and the HG46CO 2
T piston compressor , which GEA claimed to be the largest semi-hermetic compressor for trans-critical application currently on the market .
“ There ’ s a big drive towards CO 2 compressors , but the demand locally isn ’ t what it should be ,” Steve Long of GEA says . GEA offers one of the biggest CO 2 compressors in the world and it showed off the new Omni panel , which can now also control piston compressors . Another highlight was the Blustream chiller for natural refrigerants , with the heat pump version , RedAstrum , having recently landed in Europe .
Parker was the new PEV electronic control valve with a stainless steel body .
Herl showcased the Silverline range of shut off valves , offering a more economical solution to the traditional T5F and T6F range , which have been in the market for decades .
Thermofin showcased their extensive range of large industrial refrigeration heat exchangers , packaged air handlers , blower coils and blast freezers .
Compressors Every compressor manufacturer had something new to offer . New offerings comprised an extended range of proven models , added electronic controls , or adapted models for new generation synthetic refrigerants , hydrocarbons ,
CO 2 or ammonia .
Sanden of Japan had on offer probably the smallest compressor for CO 2
: hermetics with a displacement range of 0.7 – 3.9m 3 / h .
Bitzer introduced a new top of the range ( in capacity ) screw , still to be put into production . Covered in paper , the screw will extend the range of the CSVH beyond 2 000m 3 / h . The compact new Speedlite ELV51 series compressor for rail and mobile applications is specifically suited for fitment in confined spaces . The horizontal semi-hermetic scroll is suitable for frequency inverter operation with a speed ranging from 2 000rpm to 9 000rpm .
Mayekawa , Howden , Kilosgar , Hunbell , and Snowman all had a prominent presence .
Also seen The LU-VE Group of Italy displayed their Nidea intelligent defrost system for evaporator coils . The Nidea has pressure and temperature sensors and a complex algorithm unit to register and calculate the time and duration of a defrost cycle , to provide optimal performance of the coil and the minimum of energy use for defrosting . Defrosting only takes place when needed and is of the lowest duration in time . The Nidea is self-calibrating to cater for changes in operating parameters or set points . The Nidea can be retrofitted to existing coils .
The massive Bitzer stand .
Torsten Steinborn at the Bitzer stand .
At the Snowman stand .
A prominent feature of the Henry display was the new range of relief valves rated at a MWP of 130 bar for trans-critical CO 2 systems .
For the high-pressure side of CO 2 systems , Sporlan promoted a full range of valves , the FGB flash gas bypass valve , ball valves and controllers .
R / S Parker launched the new compact PVS weld in valve station , offering a combination of shut off valve , pressure regulator , solenoid valve or motorised valve in a single body . Also from R / S
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The LU-VE Nidea intelligent defrost system for evaporator coils .
The Mayekawa stand .
www . coldlinkafrica . co . za COLD LINK AFRICA • January | February 2017