Product category:
Control Valves (Rotary, Mixing, Temperature Control etc)
News Release from: Elga Process Water | Subject: Rapide Strata
Edited by the Engineeringtalk Editorial
Team on 01 March 2005
Deioniser aids coating quality
When refrigerator manufacturer Lec decided to install its own coating line for a new range of fridges, it needed a source of deionised water for the process.
If you are into American retro and want to give your kitchen the classic 1960s diner look, then you'll know all about the Lec Neon Sign fridge, which was featured in BBC TV's DIY-SOS programme Of course Lec, which has been making domestic refrigerators and freezers for 60 years, has a range of twenty-first century style products as well, all CFC and HCFC free
This article was originally published on Engineeringtalk on 4 Feb 2003 at 8.00am (UK)
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Recently Lec has expanded by the addition of a technical division specialising in commercial products like ice makers, display fridges and medical products including refrigerators for mortuaries and for the storage of blood and pharmaceutical products.
For specialised commercial and medical products, which are manufactured to order, uncoated steel is treated and coated on site.
To ensure the highest standard of surface finish, Lec installed a new coating line.
The treatment process is a conventional one consisting of two stages of phosphating followed by a mains water rinse and a second rinse using deionised water.
The pretreated steel sheet is then sprayed with a polymer for long term corrosion resistance.
The deioniser that Lec selected was Elga Process Water's latest generation of two-bed deionisers, the Rapide Strata which uses the proven Scion short cycle regeneration technology.
The specially graded, high capacity ion exchange resins used in the process have fast kinetics enabling shorter regeneration periods.
The revolutionary regeneration process means that a Rapide Strata typically runs for 2 to 4 hours and is regenerated in about half an hour, maximising production time and minimising wastewater handling problems The Rapide Strata uses separate layers specially selected resins in the anion exchange unit.
During regeneration the caustic soda regenerant flows upwards through the resins.
In this way the anion resin bed operates at a much higher chemical efficiency than single anion resin beds.
This means that chemical consumption and operating costs are around 40% lower than those of conventional deionisers.
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