Derox - Cold and Hot Water Deaeration Improve your beer quality with the Derox Deaerator

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2 Derox - Cold and Hot Water Deaeration Improve your beer quality with the Derox Deaerator Deaerated water is used in the brewing industry to minimize damage to beer through oxidation. It is used as a medium for purging mains and equipment and post fermentation as part of the brewing process. The Derox product range covers units designed for deaeration of processing water. Derox is used where a low O2 content is required or recommended, for example for the lauter tun, blending of bright beer and in High Gravity Brewing (HGB) processing. Deaeration can be performed by two different systems - cold (Derox) or hot (Derox+) deaeration. The hot system heats the water to high temperature, which reduces the risk of infection and helps remove contaminants. The cold system is capable of achieving low levels of oxygen with low capital and production costs. All Derox Units are designed and developed especially for easy integration to existing lines, with a wide and flexible capacity range. Derox (cold) - adds value The standard capacity range is 30 to 1,500 hl/h. The Derox adds value to your products and processes in the following ways: Product uniformity: Constantly low oxygen content 50 ppb at 12 C* (below 30 ppb at >20 C.*) Continuous monitoring for required specification Economical production: Low running costs 2 Space-saving design (high capacity/m ) Flexible production: Variable capacity and high turn down Independent of water inlet temperature (option) Variable deaeration levels Proven security: No rings and plates inside vacuum tanks Fully CIP-cleanable

3 Derox+ (hot) - adds value The standard capacity range is 50 to 400 hl/h. The Derox+ adds value to your products and processes in the following ways: Functional description Hot deaeration Water entering the unit is warmed by means of the regenerative section of a plate heat exchanger. After the regenerative section, the water enters a heating section where the temperature is raised to about 88ºC. The water is then sprayed into the deaeration tank via special nozzles. The deaeration tank is kept under vacuum so that the oxygen is removed with a minimum of water vapor. Product uniformity: Constantly very low oxygen content (below 20 ppb.*) Continuous monitoring for required specification Continuous removal of undesirable THF gases Economical production: Low running costs 2 Space-saving design (high capacity/ m ) Flexible production: High turn down ratio (down to 25% of nominal capacity) Independent of water inlet temperature Proven security: No rings and plates inside vacuum tanks Deaerated water is pasteurized Fully CIP-cleanable The deaerated water is cooled in the regenerative section of the plate heat exchanger and the final out-let temperature is achieved using a chilling section or a separate cooler, depending upon the refrigeration available. The deaeration tank does not contain packing and is easily cleaned. Cold deaeration Water is sprayed into the bottom vacuum tank, which starts the oxygen removal process. The water is then pumped and sprayed into the top vacuum tank via an injector where stripping gas (either CO 2, N 2 ) may be applied. From the top tank the water falls through a pipe with a vent which allows some of the water to return into the bottom tank. The level in this bottom tank is controlled by means of a level switch, which controls the water inlet valve. The remaining water is discharged from the unit via an adjustable manual-regulating valve. The unit is designed for CIP and does not contain packing.

4 Options Hot deaeration CO2 Stripping - The use of a small amount of stripping gas can allow the energy lost through flashing to be reduced. Cold deaeration Chilling - Chilling of water to match beer temperature. Different configurations are available. UV Water Disinfection - Disinfection of the incoming water can be obtained by the use of an ultra-violet disinfection unit. Seal Water Cooling - In cases where the seal water will exceed 25 C it is advisable to fit an optional seal water cooler. Preheater - Values below 0.03 ppm residual O 2 can be achieved with a water temperature of about 20 C. In cases where this water inlet temperature is not a normal value, a pre-heater consisting of a shell and tube heat exchanger together with a steam regulation valve and condensate trap can be supplied. Common Oxygen Measurement - The result of the deaeration process can be measured in-line with an oxygen measuring instrument, and the values used to initiate remedial action or alarms. Control Panel Enhancements - Advanced control systems with digital programming allow etremely accurate control and comprehensive data collection. Many of these facilities are also available with PLC control systems. APV, An SPX Brand, Pasteursvej 1, DK-8600 Silkeborg Phone: Fax: For more information about our worldwide locations, approvals, certifications, and local representatives, please visit SPX Corporation reserves the right to incorporate our latest design and material changes without notice or obligation. Design features, materials of construction and dimensional data, as described in this bulletin, are provided for your information only and should not be relied upon unless confirmed in writing. Issued: 02/ GB Copyright 2009 SPX Corporation

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