The picture left is a low temperature glycol chiller. We repair this type of chiller and get it working just like new. Where applications have a below (or near) zero temperature- glycol is used as an anti-freeze. Brine is often used in the industry, usually for larger and colder applications. Glycol is a popular anti-freeze. There are various varieties on the market- some of them being developed by the glycol supply companies in house. Propylene is non-toxic and food safe, prices are narrowing between propylene and ethylene so customers are choosing it more and more often. Ethylene is toxic so it cannot be used in conjunction with food production. It tends to be used in dirty and very industrial applications. One of the things we check during a maintenance visit is the glycol level. To do this we use a refractometer to see the freezing point of the water/ glycol solution. Where it is found to be too high- a quote is submitted for the top up unless this can be carried out during the visit. For convenience, a dosing pot is usually installed so the dose can be corrected easily
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