AlfaRex - TM20 - 2 Pages

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AlfaRex - TM20

Catalog excerpts

Totally gasket free, the TM20 is well suited for applications involving high temperature and/or high pressure with relatively clean media. The media can also be very corrosive (acids, NaOH, etc.). The TM20 is particularly recommended for the following applications: • Solvent recovery processes • Gas dehydration plants • Batch reactors • Refrigeration duties AlfaRex design The TM20 consists of a laser welded pack of corrugated metal plates with portholes for the passage of the two fluids between which heat transfer takes place. The design has been achieved by laser welding the plates together one by one in alternate grooves to form a plate pack. The plate pack is installed in a frame consisting of a frame plate and a pressure plate compressed by tightening bolts. Extended connectors are located in the frame plate with bellow linings welded to the plate pack. The plate corrugations create high turbulence which results in very high thermal efficiency. This in turn leads to compactness and cost efficiency. The corrugations also support the plates against differential pressure and allow utilization of more expensive corrosion resistant materials. Laser welding and fatigue resistance The welding is performed using laser welding techniques. This means low heat input and a small heat affected zone. The highest quality is assured through a completely automated machine and welding control combined with a helium leakage test. The construction only utilizes welding in the plane of the plate i.e. in two directions thereby avoiding welds in a third direction. This design ensures retained flexibility of the plate pack allowing for thermal and hydraulic expansions and contractions which will reduce the risk for fatigue cracks. AlfaRex - TM20 All welded Plate Heat Exchanger AlfaRex TM20 - All welded Plate Heat Exchanger

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Technical data (Maximum design performance*) FB up to 10 barg FC up to 16 barg FF up to 25 barg FK up to 40 barg FN up to 40 barg Design temperature range -50 to + 350o C Maximum flow rate 700 m3/h Maximum heat transfer surface 250 m2 Standard Materials Frame Plates Mild steel. High temperature painted Extended Nozzles Metal bellow linings in channel plate material Channel Plates Stainless steel AISI 316, AISI 316L, Titanium gr. 1, Nickel 200/201 Particulars required for quotation To enable Alfa Laval’s representative to make a specific quotation, please make sure your enquiry includes the...

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