Data sheet
Gasketed Plate Heat Exchangers (DN 350 / 14”)
SDN352 / SDN354
Description
SONDEX® gasketed plate heat exchangers are
the ideal choice for a wide range of applications
across numerous market segments.
We have the largest plate portfolio in the
world, and we customize each heat exchanger
to meet your exact requirements. Innovative
technologies and smart design make our
gasketed plate heat exchangers a stellar
investment.
Benefits:
• Individually customized solution that
perfectly matches your requirements and
lowers your energy consumption.
• High performance and a low pressure
drop eliminate unnecessary burdens on
your system and optimize overall system
performance.
• The design results in a compact solution with
a small footprint, simple installation, and easy
access for maintenance.
Common applications:
• HVAC industry
• Marine/offshore industry
• Dairy/food/beverage industry
• Sugar industry
• Biogas industry
• Pulp and paper industry
• Heavy industry
• Mining industry
• Petrochemical industry
• Chemical industry
Main data:
• Min. temperature −10 °C
• Max. temperature 180 °C
• Max. working pressure 10/16 bar
• Water and different fluids, steam
• Connection size DN 350 or 14”
Approvals:
• Please contact your local Danfoss/SONDEX®
sales representative for an overview of the
available approvals in your region
Construction standard:
• EN13445 (PED 2014/68/EU)
• ASME sec VIII, Div. 1
| 2019.11 AI323634311437en-000101 | 1
Data sheet SDN352 / SDN354 (DN 350)
Naming of units
SDN352-IS16-21-TKTL89
3)
1)
1)
Type of heat exchanger:
TKTL89 - Plate grouping
21 - Number of plates in the heat exchanger
16 - Design pressure of the heat exchanger
IS - Frame type
2)
352 – Type of heat exchanger
SDN – Gasketed heat exchanger
352 - …
Letter SDN 352 shows type of the attachment of gasket to plate:
e.g. 352 (without A) – SonderLock
352A (with A) – Hang-on
2)
Description of frame types:
There are few different frame types which can be offered for different applications and duties.
IS – with suspension roller,
IG – without suspension roller,
FS – food/sanitary with suspension roller,
FG - food/sanitary,
ST – simple design of frame with threaded connections
3)
Channel grouping:
In this example, the heat exchanger combines TK and TL channels. The share of TL channels equals
89% of the total number of channels.
The number of channels is defined as “the number of plates - 1”.
TK - short thermal length
TM - medium thermal length
TL - long thermal length
Heat exchanger design
Gasketed heat exchangers consist of
Carrying Bar
Plate Pack
Plate
Connections
Head
Flange Connections
Foundation Feet
Column
Follower
Tie Bolt
Guiding Bar
Anatomy of a SONDEX® plate heat exchanger - IS frame.
2 | AI323634311437en-000101 | 2019.11
Data sheet SDN352 / SDN354 (DN 350)
To the left: A multi-pass solution with connections
Heat exchanger design
(continued)
Multi-pass design
on the follower and the head.
To the right: A single-pass solution with
all connections on the head.
Connections
The heat exchanger may have connections on
both front and back-end sides of the unit.
Connections on the front-end plate are marked
with F and connections on the back-end plate
are marked with B. The numbers 1, 2, 3 and 4
designate the position of the connection on the
end-plate from the top-left port clockwise.
AI323634311437en-000101 | 3 | 2019.11
Data sheet SDN352 / SDN354 (DN 350)
SONDEX®
plate
range
Common
Technical data Heat exchanger SDN352 / SDN354
Typ e SDN 352 SDN 354
Max. working pressure
Max. operating temperature
Min. operating temperature -10
Flow medium Water and different fluids, steam
Volume / channel l 4.3 5.8
Connection size DN 350 / 14”
Connection type
Plate material
Plate thickness mm
Gasket material
Gasket attachment t ype Sonder Lock
Liners in connections • Rubber NBR, EPDM, FKM
Frame • Painted frame, color RAL 5010 (other colors available on request)
Frame painting specification Painting available for corrosion categories C2L, C4M, C5M
1)
Not available f or all frame variations
Using the right plate for each individual duty
is very important, as it greatly impacts the
efficiency of the entire installation.
It is important that the length of the plates and
the type of pattern match the requirements of
individual thermal duty.
We have developed a wide plate portfolio to
provide the perfect plate and connection size for
any duty.
No application is too small or too big for us - we
provide the optimal technical solution every
time.
PN
(bar)
°C
10, 16
Up to 180
• DN 350/14” flanges. Carbon steel, rubberlined or cladded with AISI 316L
(other materials available on request)
Stainless steel EN 1.440 4 (AISI 316L), EN 1.4301 (AISI 304), SMO254, Hastelloy C276,
titanium Gr.1
Other materials available on request
0.4; 0.5; 0.6;
Other thicknesses available on request
NBR, EPDM
Other materials available on request
plate
range
Our extensive SONDEX® plate portfolio
includes plates that lie outside the commonly
manufactured plate sizes to cover all thermal
duties optimally.
4 | AI323634311437en-000101 | 2019.11
Data sheet SDN352 / SDN354 (DN 350)
Accessories Insulation
Recommended applications:
The insulation jacket for the plate heat exchanger
is used in different applications with high
temperatures and cooling systems.
Application Heating Cooling
Material
Outer cap
Internal insulation 0.05 mm aluminium foil
Panel fixation Plastic rivets
Temperature 20 … 200 °C -50 … -80 °C
U-value 0.55 W/m2K 0. 38 W/m2K
Insulation class 3
Heat loss 17.1 W/m
Please note:
Inlet and outl et temperatures in the exch anger have been based on 9 0/50 – 30/70 °C.
1)
The loss of he ating/cooling is stated per m2 surface on the insu lation jacket.
The bottom o f the heat exchanger is not insu lated and this fact has been e xcluded.
A possible loss of ve ntilation, largely dep endent on the mounting of the h eat exchanger, has not been take n into account either.
Drip trays
Recommended applications:
The drip tray is available in two types. A “failsafe” solution which prevents water or liquid
from leaking onto the floor, or when the
heat exchanger is dismantled, or opened for
inspection and maintenance. And an insulated
drip tray for cooling applications, which
collects condensate formed outside of the plate
heat exchanger.
45 mm mineral wool
Not flammable
DIN EN 4102A2
1)
2
40 mm PU-foam
DIN 4102-1 B2
1 mm aluminium
“Stucco” Embossed
1)
4
-
Materials
Drip tray consists of:
• 1 mm galvanized steel frame
• Hanging brackets in galvanized steel
• 60 mm Polyurethane insulation for cooling
applications
• Draining valve.
Spare parts
Spare parts for gasketed heat exchangers, such
as plates, gaskets, frame parts can be ordered for
maintenance, repair, increasing heat exchanger
capacity, etc.
Selection and ordering Please contact your local SONDEX® or Danfoss
sales representative for the selection and / or
ordering of the heat exchangers, spare parts, and
accessories.
Please contact your local Danfoss or SONDEX®
sales representative to provide you with
information on spare parts available for gasketed
heat exchangers.
For contact information please visit
https://www.danfoss.com/en/contact-us.
AI323634311437en-000101 | 5 | 2019.11
Data sheet SDN352 / SDN354 (DN 350)
Dimensions
Non-sanitary applications
Any connection can be used for primary side in.
All the rest are made correspondingly.
SDN352 frames
565
343383
F1 F2
190 8
F3
F4
W
Drawing of SDN352 IS10 frame
2634
150
20
100
200
160
Ø100
Ø25
200
70
L + 125
L - 25
L1
B1
B2
2723
B3
H
B4
14
70
L
100
W
50
970
150
Ø25
Number of plates
L (frame length)
1)
(mm)
W
(mm)
H
(mm)
Weight max, empt y
(kg)
2)
Connection type
SDN 352 IS10
7 - 24 820
25 - 98 122 0 4166
99 - 153 1520 4648
154 - 190 1720 4972
191 - 283 2220 5785
284 - 375 2720
1120
44.09”
376 - 468 3220 7402
469 - 653 4220 9026
654 - 838 5220 106 45
2824
(111.18 ”)
3076
(121.10“)
3518
DN 350 flange or 14”
6592
839 - 1024 6220 12 273
SDN 352 IS16
7 - 21 840
22 - 94 124 0 476 8
95 - 149 1540 5358
150 - 185 1740 5759
186 - 276 2240 6728
277 - 367 2740
1030
(40. 55”)
368 - 458 3240 8785
459 - 640 4240 10785
641 - 821 5240 12922
2824
(111.18 ”)
3076
(121.10“)
4000
DN 350 flange or 14”
77 11
822 - 1003 6240 14936
1)
the indicate d maximum number of pla tes is based on the minimum plate thi ckness allowable for the PN le vel of the unit;
2)
the maximum w eight of the empty unit with t he maximum allowable nu mber of plates;
flange
flange
6 | AI323634311437en-000101 | 2019.11
Data sheet SDN352 / SDN354 (DN 350)
Dimensions (continued)
Non-sanitary applications
SDN354 frames
343
F1
2468
F4
383
565
W
80
L + 125
L - 25
L1
B1B2
3283
B3 B4
14
90
100L
50
Ø25
990
W
H
Ø100
F2
3194
F3
20
100
Ø25
200
160
Drawing of SDN354 IS16 frame
Number of plates
L (frame length)
1)
(mm)
W
(mm)
H
(mm)
Weight max, empt y
(kg)
2)
Connection type
SDN354 IS16
7 - 21 840
49 11
22 - 94 124 0 5844
95 - 149 1540 6562
150 - 185 1740 7054
186 - 276 2240 8221
277 - 367 2740 9429
114 0
(44. 88”)
3384
133 .23”
DN 350 flange or 14”
368 - 458 3240 1072 0
459 - 640 4240
641 - 821 5240 15724
822 - 1003 6240 18171
1)
the indicate d maximum number of pla tes is based on the minimum plate thi ckness allowable for the PN le vel of the unit;
2)
the maximum w eight of the empty unit with t he maximum allowable nu mber of plates;
3636
(143 .15“)
13155
*) PN class 10 bar is available on re quest.
flange
AI323634311437en-000101 | 7 | 2019.11
Data sheet SDN352 / SDN354 (DN 350)
| DHS-SRMT/SI | 2019.118 | AI323634311437en-000101
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