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Alfa Laval AQ14AlfaQTM AHRI-certified plate heat exchanger

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ApplicationsGeneral heating and cooling duties.

Standard designThe plate heat exchanger consists of a pack of corrugatedmetal plates with port holes for the passage of the two fluidsbetween which heat transfer will take place.

The plate pack is assembled between a fixed frame plate anda movable pressure plate and compressed by tightening bolts.The plates are fitted with gaskets, which seal the interplatechannels and direct the fluid 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 frame 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 plate.

Working principleChannels are formed between the plates and the corner portsare arranged so that the two fluids 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.

Flow principle of a plate heat exchanger

STANDARD MATERIALFrame/pressure plateMild steel, coated with water-based epoxy paint

Customized paint systems may be available on request.

Nozzles/ConnectionsCarbon steelMetal lined: Stainless steel Alloy 316, Titanium

Other materials may be available on request.

PlatesStainless steel Alloy 304, Alloy 316, TitaniumOther materials may be available on request.

GasketsNitrile, EPDM or VitonOther grades and materials may be available on request.

TECHNICAL DATADesign pressure (g)

FL pvcALS™ 0.6 MPaFM pvcALS™ 1.034 MPaFM PED 1.034 MPaFG pvcALS™ 1.6 MPaFG PED 1.6 MPaFG ASME 150 psigFD pvcALS™ 2.5 MPaFD PED 2.5 MPaFD ASME 300 psigFS ASME 400 psig

Higher pressures may be available on request.

Design temperatureDetermined by gasket material.

Plate typesAQ14P

Connection sizeDN350 / NPS 14 / 350ADN300 / NPS 12 / 300A

Connection standard

FL pvcALS™ EN 1092-1 PN10, ASME B16.5 Class 150, JIS B2220 10KFM pvcALS™ EN 1092-1 PN10, ASME B16.5 Class 150, JIS B2220 10KFM PED EN 1092-1 PN10, ASME B16.5 Class 150FG pvcALS™ EN 1092-1 PN16, ASME B16.5 Class 150, JIS B2220 16KFG PED EN 1092-1 PN16, ASME B16.5 Class 150FG ASME ASME B16.5 Class 150FD pvcALS™ EN 1092-1 PN25, ASME B16.5 Class 300, JIS B2220 20KFD PED EN 1092-1 PN25, ASME B16.5 Class 300FD ASME ASME B16.5 Class 300FS ASME ASME B16.5 Class 400Standard EN 1092-1 corresponds to GOST 12815-80 and GB/T 9115.Extended connections are available for ASME B16.5 Class 150, Class 300,Class 400 size NPS 14.

Particulars required for quotation- Flow rates or heat load- Temperature program- Physical properties of fluids in question- Desired working pressure and temperature- Allowable pressure drops

578 (22.76)

403

(15.87

)23

36 (9

1.97)2875

(113.19

)

1174 (46.22)

2101 - 6376 (82.72 - 251)

S1

S2S3

S4

The number of tightening bolts may vary depending on pressure rating.

The thermal performance is third party certified through the AHRI Liquid to Liquid Heat Exchangers certification program

.PCT00215EN 1506 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