Plate heat exchanger - Alfa Laval

MX25Plate heat exchangerApplicationsPlate heat exchanger for general heating and cooling duties.Standard designThe plate heat exchanger consists of a pack of corrugatedmetal plates with portholes for the passage of the two fluidsbetween which heat transfer will take place.The plate pack is assembled between a fix frame plate and amovable pressure plate and compressed by tightening bolts.The plates are fitted with a gasket, which seals the interplatechannel and directs the fluids into alternate channels. Thenumber of plates is determined by the flow rate, physicalproperties of the fluids, pressure drop and temperatureprogram. The plate corrugations promote fluid turbulence andsupport the plates against differential pressure.The plate and the pressure plate are suspended from anupper carrying bar and located by a lower guiding bar, bothof which are fixed to a support column.Connections are located in the frame plate or, if either or bothfluids make more than a single pass within the unit, in theframe and pressure plates.Typical capacitiesLiquid flow rate.Up to 350 kg/s (5600 gpm), depending on media, permittedpressure drop and temperature program.Plate typesMX25B and MX25M platesFrame typesFMS, FGS, FG, FD and FSMX25-BFGWorking principleChannels are formed between the plates and the corner portsare arranged so that the two media flow through alternatechannels. The heat is transferred through the plate betweenthe channels, and complete counter-current flow is createdfor highest possible efficiency. The corrugation of the platesprovides the passage between the plates, supports eachplate against the adjacent one and enhances the turbulence,resulting in efficient heat transfer.

Standard materialsFrame plateMild steel, Epoxy paintedNozzlesCarbon steelMetal lined: Stainless steel, TitaniumRubber lined: Nitrile, EPDMPlatesStainless steel Alloy 316, Alloy C276, Alloy 254 SMO orTitaniumGasketsNitrile or EPDMFlow principle of a plate heat exchangerTechnical dataPressure vessel codes PED, ASME, pvcALSMechanical design pressure (g) / temperatureFMS PED, pvcALS 1.0 MPa / 180°CFGS PED, pvcALS 1.6 MPa / 180°CFGS ASME 150 psig / 350°FFG PED, pvcALS 1.6 MPa / 180°CFG ASME 150 psig / 350°FFD PED, pvcALS 2.5 MPa / 180°CFD ASME 300 psig / 350°FFS ASME 400 psig / 350°FConnectionsFMS PED Size 200/250 mm DIN 2501 PN10,ASME Cl. 150FMS pvcALS Size 200/250 mm DIN 2501 PN10,ASME Cl. 150, JIS 10KFGS PED Size 200 mm DIN 2501 PN16,ASME Cl. 150FGS pvcALS Size 200/250 mm DIN 2501 PN16,ASME Cl. 150, JIS 16KFGS ASME Size 8” ASME Cl. 150FG PED Size 200/250 mm DIN 2501 PN16,ASME CI. 150FG pvcALS Size 200/250 mm DIN 2501 PN16,ASME Cl. 150, JIS 16 KFG ASME Size 8”/10” ASME Cl.150FD PED Size 200/250 mm DIN 2501 PN25,ASME Cl. 300FD ASME Size 8”/10” ASME Cl. 300FS ASME Size 8”/10” ASME Cl. 400Maximum heat transfer surface940 m 2 (10.000 sq. ft)DimensionsHh1939 (76.3”)W439 (17.3”)Measurements mm (inch)1585 - 5185 (62”-204”)Type H W hMX25-FMS 2595 (102”) 920 (36.2”) 325 (12.8”)MX25-FGS 2595 (102”) 920 (36.2”) 325 (12.8”)MX25-FG max 3100 (122”) 920 (36.2”) 435 (17.1”)MX25-FD max 3100 (122”) 940 (37”) 435 (17.1”)MX25-FS max 3100 (122”) 940 (37”) 435 (17.1”)The number of tightening bolts may vary depending on thepressure ratingParticulars required for quotation– Flow rates or heat load– Temperature program– Physical properties of liquids in question (if not water)– Desired working pressure– Maximum permitted pressure drop– Available steam pressurePCT00038EN 0904Alfa Laval reserves the right to change specifications without prior notification.How to contact Alfa LavalContact details for all countriesare continually updated on our website.Please visit www.alfalaval.com toaccess the information direct.