Alfa Laval plate heat exchanger type parameters and the meaning of M3-FM M3-FG

The plate heat exchanger is composed of a group of metal corrugated plates, which are provided with an opening, and a liquid flow channel is formed by opening holes. The corrugated plate is arranged between a fixed fixing plate and a movable pressing plate, and is clamped by a clamping bolt. The board is provided with a gasket, which seals the passage between the boards and makes the liquid flow into the adjacent channel alternately. The number of plates is determined by the change of flow rate, physical properties of liquid, pressure drop and temperature. Plate corrugation causes liquid turbulence and supports the plate to withstand differential pressure. The corrugated plate and the pressing plate are fixed between the upper and the lower rods, and the two are fixed on the supporting frame. The interface is arranged on the fixing plate and the pressing plate if one or two liquid forms a plurality of channels in the device.

Model: M3

Typical capacity: liquid flow

Maximum 4 kg/s (60 GPM), depending on the medium, allowed

Pressure drop and temperature change.

Water is heated by steam: 50 to 250 kW

Plate type: M3 and M3-X, where M3 allows parallel

Flow while M3D and M3G allow dual board structure.

Frame type: FG

Standard material

Fixing plate: low carbon steel coated with epoxy paint

Nozzle: carbon steel pipe: Alloy 316, titanium

Plate: stainless steel: AISI 316 or titanium

A seal：

M3 nitrile rubber, EPDM, HeatSealF

M3D nitrile rubber, EPDM

technical parameter

Pressure vessel standard, PED, ASME, pvcALS mechanical design pressure (g) / temperature

FG PED, pvcALS 1.6 MPa / 180 C

FG ASME 150 psig / 350 F

Maximum heat transfer surface: 3.9 M2 (40 sq. ft)

Interface: FG PED diameter 11/4 pipe, thread ISO-R 11/4"

FG pvcALS diameter 11/4 "pipe, thread ISO-G 11/4" or thread ISO-R11/4"

FG pvcALS diameter 11/4 "internal thread ISO-G 11/4", carbon steel

FG ASME diameter 11/4 pipe, thread NPT 11/4"