Popular Closed System Anti-Freeze Products
(if you can’t see what you are looking for then contact us)
|Accepta 8701||Process Cooling, Refrigeration & Air-conditioning systems||Ethylene glycol based anti-freeze incorporating a high-performance corrosion inhibitor to protect ferrous & non-ferrous metals and a pH indicator|
|Accepta 8700||Food & beverage and pharmaceutical applications||Food Safe - Mono-propylene glycol based antifreeze with blend of corrosion inhibitors, biostat system & colour indicator|
If you require uninhibited mono ethylene or mono propylene glycol then please contact us.
Choose by suitability
Use the tables below to see suitability for your system
|Chemical||Inhibitor Type||Chilled Water||LTHW||MTHW||High Temperature|
|Accepta 8700||Monopropylene Glycol Based Antifreeze||Yes||Yes|
|Accepta 8701||Ethylene Glycol Based Antifreeze||Yes|
|Chemical||Inhibitor Type||Aluminium||Steel||Copper||Galvanised Steel|
|Accepta 8700||Monopropylene Glycol Based Antifreeze||Yes||Yes||Yes|
|Accepta 8701||Ethylene Glycol Based Antifreeze||Yes||Yes|
Closed System Glycol Antifreeze Protection
Closed chiller systems operating in cold climates or during cold periods of the year may require an antifreeze added to the system water in the form of a glycol to prevent freezing of pipework and damage to the system. Accepta’s antifreeze products come with a blend of corrosion inhibitors for added protection and are available in the forms of Propolyne Glycol or Ethylene glycol.
You can use the table below to see a breakdown of the volume of chemical needed to protect against certain freezing points.
|% Chemical by Volume||Accepta 8700 Freezing Point Protection oC||Accepta 8701 Freezing Point Protection oC|
Higher concentrations of glycol have what is known as the Biostat effect in which they inhibit the growth of microbes in the water, this typically kicks in around 20-25% glycol concentration. However lower concentrations used without the addition of a separate biocide may act as a source of food for bacteria which as well as leading to growth in bacterial populations can lead to corrosion due to the acidic byproducts produced which act to lower the pH. It may, therefore, be recommended that a shock dose of biocide be used when the system is brought back online after any period of dormancy or first use or continued use of a biocide where low concentrations of glycol antifreeze are in use.
Use with a Corrosion Inhibitor
Our Closed System Glycols contain a blend of corrosion inhibitors to offer protection during a glycol treatment regime, however if low levels of glycol antifreeze are in use then the supplementation with a scale & corrosion inhibitor is recommended especially seeing as the by-products of glycol breakdown are corrosive to most metals.
For advice on treating your closed chiller system contact us today.