Danfoss SONDEX, SAW Data sheet
Data sheet
SONDEX® Fully welded plate heat exchangers (SAW)
Description
SONDEX® Fully welded plate heat exchangers
(SAW) are designed to handle extremely
aggressive and demanding media and achieve
very close temperature approaches with a true
counter-current design. Very small and compact,
they are the perfect solution for applications and
duties that require a fully welded product, such
as a plate and shell or block-type heat exchanger,
but do not need their substantial capacities. A
product that perfectly matches the specifications
of the task will always be the optimal solution.
In their class, the fully welded series outperform
shell and tube heat exchangers in every aspect
and offer all the benefits of a gasketed heat
exchanger as well as increased durability.
Benefits:
• Very compact, cost-effective units that take
up minimal floor space are light in weight,
while providing very efficient heat transfer,
through the courtesy of a true countercurrent flow.
• The gasket-free solutions feature a fully
welded plate pack that enable them to work
with very high pressure and temperatures.
The risks of leaks are severely diminished with
a completely welded heat exchanger.
• The plates in the completely welded plate
pack are made from highly resistant materials
guaranteed to withstand even the most
extreme working conditions.
Common applications:
• HVAC industry
• Refrigeration industry
• Pulp and paper industry
• Heavy industry
• Mining industry
• Petrochemical industry
• Chemical industry
Main data:
• Min. temperature −10 °C (14°F)
• Max. temperature 300 °C (572°F)
• Max. working pressure 25 bar (360 psi)
• Clean fluids, steam, gases
• Connections DN50
• Diagonal flow
Approvals:
• Please contact your local Danfoss/Sondex
sales representative to provide you with exact
approvals availability on your region
Pressure vessel code:
• EN13445 (PED 2014/68/EU)
• ASME sec VIII, Div. 1
• Other standards available on request
Naming of units
| 2020.10 AI351128197836en-010101 | 1
SAW23-IS25-30
30 - Number of plates
25 - Design pressure of heat exchanger (bar)
IS
- Frame type
23 - Type of heat exchanger
SAW - SONDEX® fully welded heat exchanger
Data sheet SONDEX® Fully welded plate heat exchangers (SAW)
Heat exchanger design
SONDEX® fully welded heat exchangers (SAW) contain a number of welded plates forming a gasket-free
plate pack which is placed between two frame plates made from carbon steel and tightened with tie bolts.
SONDEX® fully welded heat exchanger SAW23
Frame plates
Tie bolt
Welded plate pack
Connection
Feet
Connections
Technical data
The SAW23 unit has a diagonal flow.
F1 – hot side inlet,
F2 – cold side outlet
F3 – hot side outlet
F4 – cold side inlet
•
DN50 flange. According to all known standards.
Please contact your local Danfoss or Sondex sales
representative to provide you with design for
SONDEX® fully welded heat exchangers.
SONDEX® fully welded heat exchanger (SAW)
Typ e
Max. working pressure bar / psi 25 / 360
Min. operating temperature
Max. operating temperature 300 / 572
Connection DN50 flange. According to all known standards.
Number of plates 10, 16, 20, 26, 30, 36, 40, 46, 50, 56, 60, 64
Plate material
Frame material
Frame painting specification Painting available for corrosion categories C2L, C4M, C5M
°C / °F
Stainless steel EN 1.440 4 (AISI 316L)
Other materials available on request
Other materials available on request
SAW23
−10 / 14
Carbon Steel P355GH
2 | AI351128197836en-010101 | 2020.10
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