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| M - Series, painted frame Plate Heat Exchangers |
 | | M6-FG |
Applications For your utility heating and cooling duties the industrial plate heat exchangers of Alfa Laval can be used . These are detailed in the following product sheets. 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 between 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 program. The plate corrugations promote fluid turbulence and support the plates against differential pressure. The plate and the pressure plate are fixed between upper bar and lower 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. 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.  | | | | Flow principle of an M3,M6, M10 and M15 plate heat exchanger |
M3 Typical capacities Liquid flow rate Up to 4 kg/s (60 gpm), depending on media, permitted pressure drop and temperature program. Water heating by steam 50 to 250 kW Plate types M3 and M3-X, where M3 provides parallel and M3D, double wall plates. Frame types FG Standard Materials Frame plate Mild steel, Epoxy painted Nozzles Carbon steel Pipe: Alloy 316, Titanium Plates Stainless steel: AISI 316 or Titanium Gaskets | M3 | Nitrile, EPDM, HeatSealF™ | | M3D | Nitrile, EPDM |
Technical Data Pressure vessel codes, 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) Connections | FG | PED | Size 1¼" | Pipe, thread ISO-R 1¼" | | FG | pvcALS™ | Size 1¼" | Pipe, thread ISO-G 1¼" or thread ISO-R1¼" | | FG | pvcALS™ | Size 1¼" | Internal thread ISO-G 1¼", carbon steel | | FG | ASME | Size 1¼" | Pipe, thread NPT 1¼" |
Dimensions 
Measurements (mm) The number of 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
M6 Typical capacities Liquid flow rate Up to 16 kg/s (250 gpm), depending on media, permitted pressue drop and temperature program. Water heating by steam 300 to 800 kW Plate types M6, M6M and M6MD Frame types FM, FG and FD Standard Materials Frame plate Mild steel, Epoxy painted Nozzles Carbon steel
Metal lined: Stainless steel, Titanium
Rubber lined: Nitrile, EPDM Plates Stainless steel: Alloy 316 / Alloy 304
Titanium (M6M only) Gaskets M6: Nitrile, EPDM, HeatSeal F™
M6M: Nitrile, EPDM, HeatSeal F™ Technical Data Pressure vessel codes, PED, ASME, pvcALS™
Mechanical design pressure (g) / temperature | FM | pvcALS™ | 1.0 MPa / 160°C | | FG | PED | 1.6 MPa / 180°C *) | | FG | ASME | 150 psig / 320°F | | FG | pvcALS™ | 1.6 MPa / 180°C | | FD | PED, pvcALS™ | 2.5 MPa / 160°C | | FD | ASME | 300 psig / 320°F | <>*) Frame FG also approved for 1.2 MPa/200ºC to allow use in steam systems without safety valves.
Maximum heat transfer surface 390 m2 (4,200 sq. ft) Connections Pipe connections (not for frame type FD) | Straight threaded | Size 50 mm | ISO G2", NPT 2" | | Straight weld | Size 50 mm | | | Threaded inlet port | Size 50 mm | ISO G2" |
Flange connections | FM | pvcALS™ | Size 50 mm | DIN/GB/GOST PN10,
ASME CI. 150 | | FG | PED | Size 50 mm | DIN 2501 PN16, ASME CI. 150 | | FG | ASME | Size 2" | ASME CI. 150 | | FG | pvcALS™ | Size 50 mm | DIN/GB/GOST PN16,
ASME CI. 150 | | FD | PED | Size 50 mm | DIN 2501 PN25, ASME CI. 30 | | FD | ASME | Size 2" | ASME CI. 300 |
Dimensions 
Measurements mm (inch) | Type | H | W | h | | M6-FM | 920 (367/32) | 320 (125/8) | 140 (5½) | | M6-FG | 920 (367/32) | 320 (125/8) | 140 (5½) | | M6-FD | 940 (37) | 330 (125/8) | 150 (6) | | | | | | <>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
M10 Typical capacities Liquid flow rate Up to 50 kg/s, depending on media, permitted pressure drop and temperature program. Water heating by steam 0.7 to 3.0 MW Plate Types M10B, M10M and M10MD Frame Types FM, FG and FD Standard Materials Frame plate Mild steel, Epoxy painted Nozzles Carbon steel
Lined: Stainless steel, Rubber, Titanium Plates Stainless steel AISI 316/AISI 304, Titanium, Alloy 20/18/6 Gaskets | M10B | Nitrile, EPDM | | M10M | Nitrile, EPDM, HeatSeal F™, HNBR, EPDMF, Viton®G |
Technical data Mechanical design pressure (g) / temperature | FM | 1.0 MPa / 160°C | | FG | 1.6 MPa / 180°C *) | | FG ASME | 150 psig / 350°F | | FD | 2.5 MPa / 160°C | | FD 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 M10B: 90 m2 (970 sq. ft)
M10M: 60 m2 (650 sq. ft) Connections | FM – Size 100 mm | DIN 2501 PN10 or ANSI 150 | | FG – Size 100 mm | DIN 2501 PN16 or ANSI 150 | | FD – Size 100 mm | DIN 2501 PN25 or ANSI 150 | | FD – Size 100 mm | DIN 2501 PN25 or ANSI 300 (ASME) |
Dimensions 
Measurements (mm) | Type | H | W | h | | M10-FM | 1.084 | 470 | 215 | | M10-FG | 1.084 | 470 | 215 | | M10-FD | 981 | 470 | 131 | | M10-FD ASME | 1.084 | 470 | 215 | | | | | | <>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
M15 Typical Capacities Liquid flow rate Up to 80 kg/s (1,300 gpm), depending on media, permitted pressure drop and temperature program. Plate types M15B, M15E and M15M Frame typ FL, FM, FG and FD Standard Materials Frame plate Mild steel, Epoxy painted Nozzles Carbon steel
Metal lined: Stainless steel, Titanium
Rubber lined: Nitrile, EPDM Plates Stainless steel: Alloy 304, Alloy 316
Titanium
Alloy C-276
Alloy 254 SMO Gaskets (Clip-on/Tape-on, Glued) | Nitrile | Nitrile hydrogenated | | EPDM | Viton® G | | AL-EPDM | |
Technical Data Pressure vessel codes, PED, ASME, pvcALS™
Mechanical design pressure (g) / temperat | FL | pvcALS™ | 0.6 MPa / 130°C | | FM | PED, pvcALS™ | 1.0 MPa / 180°C | | FG | PED, pvcALS | 1.6 MPa / 180°C | | FG | ASME | 150 psig / 350°F | | FD | PED, pvcALS™ | 3.0 MPa / 180°C | | FD | ASME | 300 psig / 350°F |
Maximum heat transfer surface 390 m² (4,200 sq. ft) Connections | FL | pvcALS™ | Size 150 mm | DIN/GB/GOST PN10,
ASME CI. 150, JIS 10K | | FM | PED | Size 150 mm | DIN 2501 PN16, ASME CI. 150 | | FM | pvcALS™ | Size 150 mm | DIN/GB/GOST PN10,
ASME CI. 150, JIS 10K | | FG | PED | Size 150 mm | DIN 2501 PN16, ASME CI. 150 | | FG | pvcALS™ | Size 150 mm | DIN/GB/GOST PN16,
ASME CI. 150, JIS 16K | | FG | ASME | Size 6" | ASME CI. 150 | | FD | PED | Size 150 mm | DIN 250 PN25, ASME CI. 300 | | FD | ASME | Size 6" | ASME CI. 300 |
Dimensions 
Measurements mm (inch) | Type | H | W | h | | M15-FL | 1.815 (71½) | 610 (24) | 275 (10¾) | | M15-FM | max. 1941 (76½) | 610 (24) | 275 (10¾) | | M15-FG | max. 1941 (76½) | 650 (25½) | 275 (10¾) | | M15-FD | max. 2036 (80) | 650 (25½) | 370 (14½) | | | | | | <>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
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