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Plate & Gaskets | Data Sheets

Alfa Laval T35.

Alfa Laval T35


Alfa Laval T35

Plate heat exchanger

General heating and cooling duties.

Typical capacities

Liquid flow rate
Up to 650 kg/s (10400 gpm), depending on media, permitted pressure drop and temperature program.

Plate types
TL35B plates

Frame types
FM, FG, FD and FS

Standard Materials

Frame plate
Mild steel, Epoxy painted

Carbon steel
Metal-Lined: Stainless steel, Titanium

Stainless steel Alloy 316 / Alloy 304 / Alloy 254 / Alloy C276 / Titanium

Nitrile, EPDM

Technical Data

Pressure vessel codes PED, ASME, pvcALS™
Mechanical design pressure (g) / temperature

FM     PED, pvcALS™             1.0 MPa / 180°C
FM     ASME                            100 psig / 300°F
FG     PED, pvcALS™             1.6 MPa / 180°C
FG     ASME                            150 psig / 350°F
FD     PED                              2.5 MPa / 180°C
FD     ALS                               2.5 MPa / 160°C
FD     ASME                           300 psig / 350°F
FS     PED                               3.0 MPa / 180°C
FS     ASME                            400 psig / 350°F


FM        pvcALS™           Size 300 or 350 mm DIN PN10 ASME Cl.150, JIS 10K
FM        PED                     Size 300 or 350 mm DIN PN10 ASME Cl. 150
FM        ASME                  Size 12 or 14” ASME Cl. 150
FG        pvcALS™          Size 300 or 350 mm DIN PN16 ASME Cl. 150, JIS 16K
FG        PED                    Size 300 or 350 mm DIN PN16, ASME Cl. 150
FG        ASME                 Size 12 or 14” ASME Cl. 150
FD        PED                    Size 300 or 350 mm DIN PN25, ASME Cl. 300
FD        ALS                     Size 300 or 350 mm DIN PN25, ASME Cl. 300, JIS 20K
FD        ASME                 Size 12 or 14” ASME Cl. 300
FS         PED                    Size 300 or 350 mm DIN PN40, ASME Cl. 400
FS        ASME                  Size 12 or 14” ASME Cl. 400

Maximum heat transfer surface
1700 m2 (18.000 sq. ft)

Measurements mm (inch)
Type              H            W            h         Cmin      Cmax
TL35-FM     3210        1154       488       2190      6360
                  (126.5”)   (45.5”)   (19.5”)     (86”)     (250”)
TL35-FG     3210       1154        488       2205     6375
                  (126.5”)   (45.5”)   (19.5”)     (89”)     (251”)
TL35-FD     3218        1174        496      2230     6400
                  (127”)       (46.5”)    (20”)     (88”)     (252”)
TL35-FS      3218       1174        496       2245     6420
                  (127”)      (46.5”)     (20”)     (88”)     (253”)

The number of tightening bolts may vary
depending on pressure rating.
Max no. of plates TL35B = 1000


As a heat exchanger becomes fouled with dirt, debris or scale, often the modulating valve provides additional hot or cold liquid to help compensate for the loss of efficiency of the heat exchanger.

Over time the control valve will continue to open fully. Unfortunately, on the hottest or coldest days, even with the valve fully open the heat exchanger cannot meet the thermal transfer requirements and the situation becomes critical.

Monitoring just the operating temperature provides a false sense of security. Recording the difference in the outlet and inlet pressures provides a more accurate result of the amount of fouling.

Fouling equal to the thickness of a piece of paper represents a 20% loss of thermal efficiency. In addition, the energy cost for pumps increases since the pump must work harder to overcome the increased pressure resistance through the PHE

T.H. Industrial Solutions Inc. (THS) has been servicing industrial heat exchangers and solving process problems across Canada since 2009. THS head office is located in Pickering, Ontario with a 6,000 square foot service center in Hamilton, Ontario.

Today there are fewer qualified people in this industry that know the products and understand the applications. Utilizing hands on experience and knowledge that has been gained by our THS sales and service technicians for over the past 30 years, we will take the time to understand what you require and strive to provide a prompt, educated and accurate response at a competitive price.

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1550 Bayly Street, Unit 15
Pickering, ON L1W 3W1

T 905 831-4963
F 905 831-0042


76 Harlowe Road, Unit 5, 6 & 7
Hamilton, ON L8W 3R6

T 905 318-0777
F 905-318-8422