WEKA Smart-Line 50: The ideal level instrumentation for refrigeration applications Typical application conditions Operating pressure 30 bar @ 30° C Media Refrigerant – Freon R134a Media denisty 1,2g/cm3 Measured vessel Refrigerant tank Level instrument Type 34000-A Special Special features Special refrigerant duty bottom drain valve (e.g., Rotalock or Herl) Process connections Copper tubes integrated (by brazing) with level indicator The application Refrigeration plants are used in supermarkets, hotels, restaurants, hospitals, food processing industries, and in smaller food retail establishments. A refrigeration plant uses a refrigerant such as Freon R134a stored in its liquid state in a reservoir tank that forms part of the refrigeration cycle. Visual indication of liquid refrigerant level and monitoring of low and high tank levels are necessary for efficient and safe plant operation. VLI Smart-Line Type 34000-A Special In co-operation with OEMs and refrigeration plant supply firms, WEKA has specially adapted its Smart-Line 34000-A Series of Visual Level Indicators for this application. This reliable, accurate and economical refrigerant level instrument is regularly used in considerable numbers by the refrigeration industry. WEKA AG · Schürlistrasse 8 · CH-8344 Bäretswil · Phone ++41 (0)43 833 43 43 · Fax ++41 (0)43 833 43 29 · www.weka-ag.ch

The challenges Refrigerants are expensive, and leakage into the atmosphere has environmental consequences. The entire refrigeration plant must be maintained in leak-tight condition at all times. Refrigerant leakage results not only in atmospheric pollution, but also in ineffective cooling functions. The consequences of this can be severe: spoilage of the refrigerated foodstuffs, which then must be destroyed, resulting in total loss. If spoiled foodstuffs are accidentally passed on to consumers, the health consequences can be catastrophic, sometimes even fatal. An effective way to detect refrigerant...