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Plate & Gaskets | Data Sheets

Alfa Laval T20B.

Alfa Laval T20B

DATA SHEET

Alfa Laval T20B

Plate heat exchanger

General heating and cooling duties.

Typical capacities

Liquid flow rate
Up to 225 kg/s (3600 gpm), depending on media, permitted pressure drop and temperature program.

Plate types
T20B plates

Frame types
FM, FG and FS

Standard Materials

Frame plate
Mild steel, Epoxy painted

Nozzles
Carbon steel
Metal-Lined: Stainless steel, Titanium

Plates
Stainless steel Alloy 304, Stainless steel Alloy 316, Alloy C-276 or Titanium

Gaskets
Nitrile or EPDM

Technical Data

Mechanical design pressure (g) / temperature
FM     pvcALS™                    1.0 MPa / 180°C
FG     pvcALS™                     1.6 MPa / 180°C
FG     PED                              1.6 MPa / 180°C 
FG     ASME                            150 psig / 350°F
FS      PED                              3.0 MPa / 160°C
FS     ASME                            400 psig / 320°F

Connections

FM   pvcALS™       Size 200 mm     DIN PN10/JIS 10K
                                Size 8"                 ASME Cl. 150
FG   pvcALS™        Size 200 mm     DIN PN16/JIS 16K
                                Size 8"                 ASME Cl. 150
FG   PED                 Size 200 mm     DIN PN10/16
FG   ASME              Size 8”                 ASME Cl. 150
FS    PED                 Size 200 mm     DIN PN25/40
FS    ASME              Size 8”                 ASME Cl. 300/400

Maximum heat transfer surface
630 m2 (17000 sq. ft)

Measurements mm (inch)
Type                      H                          W                              h
T20-FM         2145 (84 ½")       780 (30 11/16")        285 (11 7/32)
T20-FG         2145 (84 ½")       780 (30 11/16")        285 (11 7/32)
T20-FS          2183 (84 ½")       780 (30 11/16")        323 (12 11/16)

WHEN SHOULD A PLATE & FRAME HEAT EXCHANGER BE SERVICED?

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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HEAD OFFICE

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

T 905 831-4963
F 905 831-0042

SERVICE CENTER

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

T 905 318-0777
F 905-318-8422

Contact THS SERVICE