Art.-No. 31363
Description
Zitrec® FC - mixed with the appropriate amount of deionised or distilled water - is a
phosphate-based multipurpose heat transfer fluid based on mono propylene glycol and
contains only FDA approved ingredients. Zitrec® FC has been registered by NSF
International and concluded as acceptable for use as a heat transfer fluid where there is the
possibility of incidental food contact.
Application
Many applications in the industry require a fluid to transport heat or cold. This transport
medium is usually called secondary refrigerant or secondary coolant. The ideal
secondary refrigerant must ensure a good thermal conductivity, have a high specific
heat, be non-flammable and compatible with common engineering materials. Preferably
the heat transfer fluid is also of low toxicity, which is specifically in the food industry of
vital importance. Defrosting, cooling and freezing are frequently part of an entire food chain
process. In these applications, Zitrec® FC and its dilutions are especially useful. Some
typical examples include the cooling in the beverage industries such as the cooling of
wine, beer, milk and juices. But also during the brewing process, the cooling of
fermentation and wort tanks is essential and Zitrec® FC will provide here the necessary
heat transfer. Further in the chain, Zitrec® FC can be used in the bottling process of
carbonated beverages, such as champagne or beer, preventing as such loss of
carbonation. Other applications include indirect contact freezing. During this process, the product and a heat transfer fluid are separated by means of an interface or barrier between the
cooling medium and the product. This interface can be a metal plate or the
products packaging material, which prevents direct contact between the product and the
cooling medium. Contact freezing is mainly used to cool packed fish and meat products
in blocks with pre-set linear dimensions. Zitrec® FC provides protection against
boiling, freezing and corrosion in each application. The dilution is determined by
system requirements, mainly freezing requirements. However, to ensure good
corrosion protection it is recommended to use at least 30 vol. % of Zitrec® FC in the coolant
solution. Mixtures with more than 70 vol. % of Zitrec® FC in water are not recommended,
because some physical properties, such as heat transfer, are no longer sufficient.
Zitrec® FC and its dilutions must be used in a manner which prevents direct or indirect
contamination of edible products as they are not suitable for use as a direct food
component or additive.