M-Series- BaseLine Gemini Plate Heat Exchanger - 3 Pages

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Catalogue excerpts

. kyCross-contamination safe double wall plates M-Series/BaseLine Gemini Plate Heat Exchangers . Application General cooling/heating for pharmaceutical, brewery and beverage applications when a mix-proof design is required. To secure the cross-contamination safe feature, water or water-like fluids are recommended. Working principles Channels are formed between the plates and the corner ports are arranged so that the two media flow through alternate channels. A unique distribution area provides an efficient flow over the plate surface. The heat is transferred through the plate between the channels, and a complete counter-current flow is created for the highest possible efficiency. The chevron corrugation of the plates provides the passage between the plates, supports each plate against the adjacent one and enhances turbulence. The high turbulence resulting in efficient heat transfer and high surface shear forces to minimise fouling and the build-up of biofilm. The plates are reversible and have a parallel flow, which means that only one type of gasket is needed. Heat exchanger design The plate heat exchanger consists of a pack of corrugated metal plates with port holes for the passage of the two fluids between which heat transfer will take place. The plate pack is assembled between a fixed frame plate and a movable pressure plate and compressed by tightening bolts. The plates are fitted with a gasket, which seals the inter-plate channel and directs the fluids into alternate channels. The number of plates is determined by the flow rate, physical properties of the fluids, pressure drop and temperature program. The plate corrugations promote fluid turbulence and support the plates against differential pressure. The plate and the pressure plate are suspended from an upper carrying bar and located by a lower guiding bar, both of which are fixed to a support column. Connections may be located in the frame plate and/or in the pressure plate. Gemini plates The Gemini plates consist of two plates with a small air gap in between. The Gemini double wall plates will give a cross-contamination safe design, as a crack in a plate will not result in mixing of the two media.

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Gasket Gemini plate heat exchangers are supplied with our standard glue-free Clip-On gaskets of a double-gasket design. The double-gasket design has two sealing surfaces between the product and the cooling/heating media. This ensures that no intermixing will occur if one of the gaskets should leak. Instead, the leakage will drain into a chamber and then out into the atmosphere. Frame The Gemini plate heat exchanger is available in either the M-series or the BaseLine frame. M-Series frame This is our standard frame where the frame plate material is epoxy painted mild steel. The frame is available...

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. ESE00685EN 1001 The information contained herein is correct at the time of issue, but may be subject to change without prior notice. How to contact Alfa Laval Contact details for all countries are continually updated on our website. Please visit www.alfalaval.com to access the information direct.

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