Description
Applications
General heating and cooling duties. Heating by means of steam.
Standard design
The plate heat exchanger consists of a pack of corrugated metal plates with portholes for the passage of the two fluids between which heat transfer will take place.
The plate pack is assembled betweeen a fix frame plate and a movable pressure plate and compressed by tightening bolts. The plates are fitted with a gasket which seals the interplate channel and directs the fluids into alternate channels. The number of plates is determined by the flow rate, physical properties of the fluids, pressure drop and temperature pro- gram. The plate corrugations promote fluid turbulence and support the plates against differential pressure.
The plate and the pressure plate are suspended from an upper carrying bar and located by a lower guiding bar, both of which are fixed to a support column.
Connections are located in the frame plate or, if either or both fluids make more than a single pass within the unit, in the frame and pressure plates.
Typical capacities
Liquid flow rate
Up to 16 kg/s, depending on media, permitted pressue drop and temperture program.
Water heating by steam
300 to 800 kW
Plate types
M6 and M6M
Frame types
FM, FG, FD, FML and FGL
Working principle
Channels are formed between the plates and the corner ports are arranged so that the two media flow through alternate channels. The heat is transferred through the plate between the channels, and complete counter-current flow is created for highest possible efficiency. The corrugation of the plates provides the passage between the plates, supports each plate against the adjacent one and enhances the turbulence, resulting in efficient heat transfer.
Standard materials
Frame plate
Mild steel, Epoxy painted
Nozzles
Flange: Carbon steel
Lined: Stainless steel, Rubber, Titanium
Pipe: Stainless steel, Carbon steel
Plates
Stainless steel AISI 316
Titanium (M6M only)
Gaskets
M6: Nitrile, EPDM, HeatSeal F™
M6M: Nitrile, EPDM, HeatSeal F™, HNBR, Viton®G
Connections
Pipe connections:
Straight threaded ISO-G2 (not for frame type -FD)
Straight welded (not for frame type -FD)
With flanges:
| FM | Size 60 mm | DIN 2501 PN10 or ANSI 150 |
| FG | Size 60 mm | DIN 2501 PN16 or ANSI 150 |
| FD | Size 60 mm | DIN 2501 PN25 or ANSI 150/ANSI 300 |
Dimensions
Technical data
Mechanical design pressure (g)/temperature
FM 1.0 MPa / 160°C
FG 1.6 MPa / 180°C *)
FD 2.5 MPa / 160°C FS ASME 300 psig / 320°F
*) Frame FG also approved for 1.2 MPa / 200°C to allow use in steam systems without safety valves.
Maximum heat transfer surface
38 m2 (410 sq. ft)
Measurements (mm)
Flow principle of a plate heat exchanger
| Type | H | W | h |
| M6-FML/FGL | 920 | 320 | 140 |
| M6-FM | 920 | 320 | 140 |
| M6-FG | 920 | 320 | 140 |
| M6-FD | 940 | 330 | 150 |
The number of tightening bolts may vary depending on pressure rating.
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
