.M10-BWSemi-welded plate heat exchanger

M10-BW

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ApplicationsHeating and cooling of aggressive media. Duties inrefrigeration installations.

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 anda movable pressure plate and compressed by tighteningbolts. The semi-welded plates combine the flexibility andserviceability of the gasketed heat exchangers with theassurance against leakage of the welded heat exchangers.In the plate arrangement, every other channel is welded,and every other channel is gasketed. The number of platesis determined by the flow rate, physical properties of thefluids, pressure drop and temperature program. The platecorrugations promote fluid turbulence and support the platesagainst differential pressure.

The semi-welded plate heat exchanger is provided withgaskets specifically designed to resist aggressive media.The non-aggressive med ia flows in the gasketed channels.This construction means that it can easily be dismantled, forexample for exchanging gaskets or for inspection and cleaningof the gasketed channels.

Corrosion-resistant plate materials, the absence of pressureretaining welds, double gasket seals, and a flexible yetvibration resistant design - to assure long life and trouble freeoperation.

The frame plate and the pressure plate are suspended from anupper carrying bar and located by a lower guiding bar, both ofwhich are fixed to a support column. Connections are locatedin the frame plate or, if either or both fluids make more than asingle pass within the unit, in the frame and pressure plates.

Typical capacitiesLiquid flow rateUp to 50 kg/s (800 gpm), depending on media, permittedpressure drop and temperature program.

Refrigeration duties50-250 RT / 175-875 kW

Plate typesM10-BW

Frame typesFG, FD, FT, REF and FX

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Cross section of a semi-welded plate heat exchanger

STANDARD MATERIALSFrame plateMild steel, Epoxy painted

NozzlesMetal lined: Stainless steel, Titanium, SMO, Alloy C276

PlatesStainless steel: Alloy 304, Alloy 316, Titanium, Alloy 254(SMO), Alloy C276

GasketsField gaskets: Nitrile, EPDM, Chloroprene, Viton,

FEPMALRing gaskets: Nitrile, EPDM, Chloroprene, Viton,

FEPMALOther grades and material available on request.For refrigeration: Gasket design temperature range

-45C to 150C

TECHNICAL DATAPressure vessel codes, PED, ASME, pvcALSMechanical design pressure (g) / temperature

FG pvcALS 1.6 MPa / -50 to 180CFG PED 1.6 MPa / -10 to 180CFG ASME 150 psig / -54F to 482FFD pvcALS 2.5 MPa / -50 to 180CFD PED 2.5 MPa / -50 to 180CFD ASME 300 psig / -54F to 482FFDR PED 2.5MPa / -50 to 160CFT PED 4.0 MPa / -50 to 180CFT ASME 600 psig / -54F to 482FREF PED 2.5 MPa / -50 to 150CFX PED 5.5 MPa / -50 to 150C

Connections

FG pvcALS 100 mm DIN PN16, ASME CI. 150, JIS 16KFG PED 100 mm DIN PN 16, ASME CI. 150FG ASME 4 ASME CI. 150FD pvcALS 100 mm DIN PN25, ASME CI. 150, JIS 20KFD PED 100 mm DIN PN25, ASME CI. 150FD ASME 4 ASME CI. 300FT PED 100 mm DIN PN40, ASME CI. 300FT ASME 4 RLFREF PED 100 mm DIN PN25FX PED 100 mm DIN PN 16, PN25, PN63RLF in pressure plate: M10-FG, M10-FD, M10-FT/PED, M10-FX/PEDRLF = Rectangular loose flange

Working 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.

Dimensions

695-2400 (27-95")

h71

9 (2

8.3"

)H

225 (8.9") or 231(9.1")

W

Measurements mm (inch)

Type H W hM10-FG 1084 (42.7") 470 (18.5") 215 (8.5")M10-FD 981 (38.6") 470 (18.5") 131 (5.2")M10-FD ASME 1084 (42.7") 470 (18.5") 215 (8.5")M10-REF 1110 (43.7") 470 (18.5") 163 (6.4")M10-FT 1084 (42.7") 470 (18.5") 215 (8.5")M10-FX 1133 (44.6") 470 (18.5") 215 (8.5")The number of tightening bolts may vary depending on pressure rating.

Maximum heat transfer surface100m (825 sq. ft)

Particulars 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 pressure

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Flow principle of a plate heat exchanger

.PCT00134EN 1306 Alfa Laval reserves the right to change specifications without prior notification.

How to contact Alfa LavalUp-to-date AlfaLaval contact details forall countries are always available on ourwebsite on www.alfalaval.com

tocM10-BWApplicationsStandard designTypical capacitiesLiquid flow rateRefrigeration dutiesPlate typesFrame typesSTANDARD MATERIALSFrame plateNozzlesPlatesTECHNICAL DATAPressure vessel codes, PED, ASME, pvcALSConnectionsWorking principleDimensionsMeasurements mm (inch)Maximum heat transfer surfaceParticulars required for quotation.

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