
Plate heat exchanger SF50

Compact and efficient solution for industrial applications
The plate heat exchanger SF50 is designed for use in HVAC systems, domestic hot water production, industrial processes, and cooling installations. Its compact body ensures easy installation in confined spaces.
SonFlow offers the SF50 heat exchanger with two different plate pressing depths – SF51 and SF51D. This allows the series to cover a wide range of thermal loads with a single-pass configuration.
The SonFlow SF51D model is available with a deeper pressing depth (Deep), which improves flow efficiency and reduces the risk of clogging.
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Industries using plate heat exchanger SF50
- HVAC-R
- Geothermal
- Marine
- Food and beverage
- General industry
- Chemical industry
- Mining
Business benefits of using gasket plate heat exchangers
- Lower operating costs
- Cost-effective
- Easy assembly
- Increased energy efficiency
- Easy cleaning
- Dead spots, that cause corrosion and fouling are eliminated
Main features and key advantages of plate heat exchanger SF50
Every detail in the gasketed plate heat exchanger SF50 is carefully designed to ensure optimal performance, reduce maintenance costs, and minimize system downtime.
The main features and key advantages of plate heat exchanger SF50 are as follow:
- Compact design
- High flexibility
- Gentle product handling
- Design pressure up to 25 bar
- Operating temperature up to 180°C
- Leak chamber
- Fixed bolt head
- Lifting lug
- Lining
- Lock washer

Design pressure
- Painted frames: 1,6 MPa
- Painted frames: 2,5 MPa
Construction standards
- EN13445
- ASME sec VIII, Div. 1
Frame
- Painted frame, RAL 5010 (available in other colours)
- Stainless steel frame
Connections
- DN 50/2” flange in carbon steel, rubber lined or cladded with AISI 316 or titanium
- DN 50/2” dairy pipes or unions
- 2’’ threaded pipe, BSP/NPT, Stainless steel or Titanium
- According to all known standards
Plate material - available options
- Stainless steel AISI 304
- Stainless steel AISI 316
- Titanium
- Other materials available on request
Gaskets for plate heat exchanger SF50 - available options
Plate heat exchanger SF50 is equipped with "Hang-on" gaskets, designed for easy installation without the need for adhesives. They are available in several material options, including:
- NBR
- EPDM
- Viton
- Other materials available on request
Accessories available with plate heat exchanger SF50
- Drip tray
- Insulation jackets
- Safety cover
- Assembling spanner
- Foundation feet